Estate planning is one of those tasks that’s easy to defer indefinitely, but having a proper Thai will in place is genuinely one of the highest-value, lowest-cost pieces of planning available to anyone with meaningful assets here. It’s also just one piece of a wider financial picture that most expats in Thailand eventually need to think through properly, retirement income, pension continuity, long-term savings, and cross-border money management among them, and this guide covers all of it, starting with wills and inheritance before widening out into the rest of the financial planning journey worth working through as a connected whole rather than a series of disconnected decisions.

Why your existing will might not be enough

Thai law applies to any asset physically located in Thailand, regardless of your nationality or where your primary will was drafted, a principle known as lex situs, the law of the place where the property sits. A will made entirely in your home country can technically be used to claim Thai assets, but enforcing it involves translation into Thai, notarisation, and authentication through the relevant embassy and Thailand’s Ministry of Foreign Affairs. This process is genuinely slow, and during it, Thai bank accounts can remain frozen and property can’t be legally transferred or sold.

What happens without any Thai will

If you die without a valid Thai will, your Thai-based assets are distributed according to a fixed statutory order: descendants first, then parents, then full siblings, and so on through six defined classes of heirs. This has a genuinely important consequence many foreigners don’t anticipate: unmarried partners receive nothing under these rules, regardless of how long the relationship lasted. A commonly cited real example involves a foreign national who passed away without a Thai will, leaving a UK will naming a long-term Thai partner as beneficiary, but because the couple had never legally married, the estate passed instead to family members abroad, with probate taking over a year to resolve. A simple Thai will would have prevented this entirely.

What a Thai will actually costs, versus not having one

A professionally drafted Thai will, typically an Ordinary Will under the Civil and Commercial Code, generally costs between 5,000 and 25,000 THB depending on complexity, sometimes drafted bilingually for clarity. This is a modest cost measured against the alternative: probate without a will, or with only a foreign will requiring authentication, which can exceed 300,000 THB in costs and take well over a year to resolve, during which heirs typically can’t access frozen accounts or transfer property.

The basic requirements for a valid Thai will

Thai law sets specific formal requirements: the person making the will (the testator) must be at least 15 years old and of sound mind at signing, and at least two competent witnesses must sign, none of whom can be beneficiaries or their spouses. A will that fails to meet these formal requirements is void, which is exactly why professional drafting, rather than an informal DIY document, matters here.

Inheritance tax: less of a concern than people assume

Thailand’s inheritance tax only applies to the portion of an estate exceeding 100 million THB, roughly 2.8 million USD, with rates of 5 percent for descendants and ascendants and 10 percent for other heirs. Legally registered spouses are fully exempt regardless of estate size. The large majority of foreign estates in Thailand sit comfortably below this threshold, meaning inheritance tax itself often isn’t the primary concern, proper documentation and avoiding probate delays generally matter far more.

Land and inherited property: a real restriction

Foreign heirs can inherit land in Thailand as statutory heirs, but generally cannot register ownership of it in their own name, since the same restrictions that prevent foreigners from owning land outright also apply here. In practice, this typically means disposing of inherited land, often within around a year, rather than retaining it. This is worth understanding well before it becomes relevant, since it shapes how estate planning around Thai property should realistically be structured.

No trusts under Thai law

It’s worth knowing that Thailand doesn’t recognise trusts, whether created during your lifetime or through a will, for Thai-based assets. Any trust arrangement attempting to govern Thai assets simply has no legal effect here. Estate planning in Thailand works through a properly drafted will and, where relevant, careful structuring of how assets are actually held, not through trust structures common in some other jurisdictions.

A recent procedural update worth knowing about

A new regulation took effect in March 2026, standardising how wills are prepared and registered at district offices nationwide, replacing rules dating back to 1960. This doesn’t change the core inheritance law itself, but tightens procedural requirements, including stricter verification of mental capacity and intent, aimed at reducing disputed or coerced wills. Worth being aware of if you’re going through the will-registration process now compared to guidance written before this change.

Why a will is only the starting point

A Thai will genuinely solves the specific problem of what happens to your assets when you die, but it’s worth being honest that it doesn’t answer the questions most expats actually lie awake thinking about: whether their retirement savings will actually last, whether their pension keeps pace with what life in Thailand costs, or whether their money is organised sensibly across two or more countries in the first place. These are separate, ongoing planning questions rather than one-off legal documents, and they’re worth working through with the same seriousness as the will itself, ideally as part of a single connected plan rather than piecemeal decisions made in isolation whenever a specific worry surfaces. The rest of this guide widens out into exactly that wider picture.

Retirement planning: starting from lifestyle, not a savings number

The most common mistake in retirement planning, for expats in Thailand and everywhere else, is starting with a headline savings figure rather than a realistic lifestyle cost. A retirement plan built backward from “how much do I have” rather than forward from “how much does the life I actually want in Thailand cost” tends to produce a much shakier picture, since the same savings figure can comfortably support one lifestyle and fall well short of another depending on city, housing choice, and healthcare expectations. The sensible starting point is JLIT’s Thailand Cost of Living Calculator, which lets you build a realistic monthly spending target for your specific circumstances before testing that target against your actual resources. From there, the Retirement Income Calculator tests how long your existing savings and dependable income streams might actually support that lifestyle, turning an abstract worry into a concrete, testable estimate. For the fuller picture of what a properly connected retirement plan should cover, beyond the calculators themselves, JLIT’s retirement planning guide is worth working through directly on the Find Your Finance hub.

What a genuinely complete retirement plan actually covers

It’s worth being specific about what “retirement planning” should mean in practice, since the phrase gets used loosely enough to mean almost anything. A properly complete plan covers, at minimum: a realistic monthly lifestyle budget specific to your target Thai city; a clear inventory of every income source you’ll actually have access to, state pensions, workplace pensions, rental income, investment income, and how reliably each one arrives; an honest test of how long your capital lasts against that spending target once inflation and investment returns are both factored in; a specific withdrawal strategy rather than an assumption that you’ll simply “figure it out” once retired; and a medical cover plan that scales appropriately as healthcare needs typically increase with age. Missing any one of these pieces leaves a genuine gap in the plan, even if the others look solid individually, which is exactly why the connected, sequential approach covered later in this guide tends to produce a considerably more reliable picture than tackling each piece separately and hoping they add up.

Pensions and existing arrangements: do they still fit an expat life?

Many expats arrive in Thailand with pension and savings arrangements built entirely around a home-country life, and it’s genuinely worth reviewing whether those arrangements still make sense once you’re no longer living, working, or necessarily paying tax in that same country. State pensions specifically carry country-by-country quirks worth understanding directly rather than assuming they simply continue unchanged: UK State Pension payments, for example, continue to be paid to expats living in Thailand, but are frozen at the rate first received unless Thailand is covered by a reciprocal uprating agreement, meaning no further annual increases, a detail that can meaningfully erode real purchasing power over a retirement spanning two or three decades. JLIT’s article on whether you can still receive a UK State Pension if you never move back covers this specific question in depth, and the broader question of whether an existing pension or investment arrangement still suits your circumstances is exactly what the Pension Shortfall Calculator on Find Your Finance is built to test, measuring the gap between what your existing resources are actually likely to provide and what your target retirement income requires.

How other nationalities’ pensions typically translate to Thailand

The UK’s frozen-pension quirk is well known among British expats, but it’s worth knowing the picture differs meaningfully by nationality. US Social Security payments generally continue uninterrupted and with normal cost-of-living adjustments regardless of Thai residency, since the US doesn’t apply the same freezing rule the UK does to non-treaty countries. Australian pension arrangements depend heavily on whether you’re drawing a government Age Pension, subject to residency and portability rules that can reduce or suspend payments after an extended period overseas, or private superannuation, which generally remains fully accessible regardless of where you live. Canadian and most EU state pensions each carry their own specific portability and indexation rules again. None of this is a reason to assume the worst, but it’s genuinely worth confirming your specific country’s rules directly rather than assuming your situation matches what you’ve heard about a friend’s different nationality, since the differences here are substantial enough to meaningfully change a retirement income plan.

Building long-term savings: contributions, compounding, and time

For anyone still in the accumulation phase rather than already retired, understanding how regular contributions, investment returns, and fees interact over time is genuinely one of the highest-value things to get right early, since small differences compound meaningfully over a decade or two. The mathematics of compound growth reward starting early and staying consistent far more than they reward waiting for a larger lump sum before beginning, and JLIT’s Compound Growth Calculator lets you model exactly this, starting capital, regular monthly contributions, expected returns, and fees, into a realistic long-term projection rather than a rough guess. It’s a question that comes up often enough to warrant its own dedicated article too: JLIT’s piece on whether to invest a lump sum or save monthly walks through the genuine trade-offs between the two approaches, since the right answer depends heavily on your existing capital position, risk tolerance, and how much market timing risk you’re comfortable carrying with a single lump-sum entry point versus spreading it out.

What a diversified expat portfolio should actually look like

Portfolio construction for someone living outside their home country carries a few genuinely distinct considerations beyond standard diversification advice, currency exposure, which jurisdictions your investments are actually domiciled in, and how accessible your capital remains if your country of residence changes again in the future. JLIT’s article on what a diversified expat portfolio should look like covers this in proper depth, and it’s worth reading before assuming a portfolio built for a home-country life automatically translates well into an internationally mobile one. Currency exposure specifically deserves real attention: an expat earning, spending, and eventually retiring across two or more currencies carries a genuinely different risk profile than someone whose entire financial life sits in one currency, and a portfolio that ignores this can look well diversified on paper while still carrying meaningful, under-appreciated currency risk in practice.

Inflation: the quiet risk over a long retirement

It’s worth taking inflation seriously as a genuine planning risk rather than background noise, particularly for anyone planning a retirement that could realistically span 25 to 35 years. A monthly budget that comfortably covers your lifestyle today will cost meaningfully more in real terms a decade or two from now, and a retirement plan that doesn’t explicitly account for this tends to look considerably more comfortable on paper at the outset than it actually turns out to be in practice. JLIT’s Inflation Calculator translates today’s cost-of-living figures into a realistic future equivalent, letting you see directly how much a given monthly budget needs to grow simply to maintain the same real standard of living, a genuinely useful reality check before finalising any long-term income plan.

Safe withdrawal rates: making sure the money actually lasts

Once you’ve built a picture of your likely retirement capital and lifestyle costs, the remaining question is genuinely one of the most important in the whole planning process: how much can you actually withdraw each year without running a meaningful risk of outliving your money. Withdrawing too conservatively means living below your means unnecessarily; withdrawing too aggressively risks a genuinely uncomfortable outcome in later retirement. JLIT’s Safe Withdrawal Calculator tests a specific withdrawal strategy against portfolio growth assumptions, fees, inflation, and your planning age, giving a considerably more grounded answer than a generic rule of thumb borrowed from a different country’s retirement norms, since safe withdrawal research is heavily influenced by the specific market and tax environment it was originally modelled on.

Thai tax residency and what it means for foreign income

It’s worth understanding Thailand’s approach to taxing foreign-sourced income, since this has shifted meaningfully in recent years and affects retirement, investment, and pension planning directly. Thailand generally taxes foreign-sourced income when it’s remitted into the country, and the rules governing exactly when and how much tax applies have tightened since 2024, moving away from an older interpretation that only taxed foreign income brought in during the same year it was earned. This matters directly for anyone drawing a pension, investment income, or savings from abroad into a Thai bank account, and it’s genuinely worth a specific conversation about your own situation rather than relying on general guidance or an outdated understanding from before the rules changed, since the practical effect varies considerably depending on your specific income sources, timing, and whether a double taxation treaty between Thailand and your home country applies to your circumstances.

Financial planning for digital nomads and DTV holders

The growing population of DTV (Destination Thailand Visa) holders and other remote workers building a life in Thailand around foreign-sourced income face a genuinely distinct version of the planning questions covered throughout this guide. Since DTV holders are explicitly earning income from outside Thailand rather than through Thai employment, understanding exactly how that income is taxed, both in Thailand and in whichever country it originates from, matters more here than for a standard local employee on a Non-B visa and work permit. It’s also worth thinking through retirement and long-term savings planning earlier than many remote workers initially consider, precisely because the DTV’s flexible, mobile structure means less of the automatic retirement infrastructure, employer pension contributions, for example, that a traditional employee might have built up passively. A DTV holder building a Thailand-based life on a five-year visa horizon is genuinely well served treating their financial plan as seriously as a longer-term resident would, even if their visa category itself is framed around flexibility and mobility rather than permanent settlement.

Common mistakes in expat financial planning

A handful of avoidable missteps come up repeatedly among expats organising their finances in Thailand. The first is treating each financial decision, the will, the pension review, the property purchase, in isolation rather than as parts of one connected plan, which frequently leads to genuine contradictions between pieces, an estate plan that doesn’t account for how a pension is actually structured, for instance. The second is assuming home-country financial habits and products translate directly to an expat life, when currency exposure, tax residency, and cross-border access all meaningfully change the calculation. The third is deferring a proper financial review until a specific problem forces the issue, a pension shortfall discovered too late to meaningfully correct, or an estate left in genuine legal limbo after an unexpected death, rather than reviewing proactively on a regular cycle. And the fourth, specifically relevant to the will and inheritance focus of this guide, is assuming a will drafted years ago in a home country, before moving to Thailand, still adequately covers a financial and family situation that’s likely changed considerably since, worth revisiting at least every few years or after any major life change rather than treating it as a one-time task completed indefinitely.

A few scenarios, worked through

It’s worth seeing this guide’s advice applied to a few genuinely different situations. A recently retired British couple, both drawing UK State Pensions and a modest workplace pension, moving to Thailand permanently, should specifically confirm their UK pension’s frozen-rate status, test their combined income against a realistic Thailand lifestyle cost using the cost of living and retirement income calculators, and prioritise a Thai will covering their Thai-based condo purchase alongside reviewing whether their existing UK will adequately covers everything else. A mid-career American software developer on a DTV visa, still ten or more years from retirement, should focus more heavily on the compound growth and long-term savings side of this guide, understanding how their continuing US-sourced income is taxed both at home and, potentially, in Thailand, while building a Thai will covering whatever Thai-based assets, a vehicle, savings, or property, they accumulate along the way even while their broader financial life remains centred elsewhere. And a longer-term expat family with school-age children, several years into life in Thailand already, is generally best served prioritising the education fee planning and life insurance and protection sections of this guide specifically, alongside ensuring their existing Thai will still reflects their current family structure rather than one drafted before children were born.

Education fee planning for expat families

For expats raising children in Thailand, international school fees represent one of the largest and most predictable major expenses in the household budget, and it’s worth planning for them with the same rigour as retirement income rather than treating each year’s tuition as a surprise. Fees vary enormously by school and curriculum, from around 150,000 THB annually at more affordable bilingual schools up to well over a million THB annually at the most established international schools’ senior years, and the earlier a savings plan for this specific goal begins, the less pressure it places on the rest of the household budget as fees come due. JLIT’s article on preparing for international school or university fees covers the specific planning considerations involved, and it’s a conversation genuinely worth having directly through Find Your Finance given how much fee structures and payment timing vary between schools and how much this affects the right savings vehicle to use.

Cross-border financial organisation: managing money across two countries

Most expats in Thailand maintain some financial presence in their home country alongside their new Thai-based life, a bank account, a pension, perhaps a property, and organising this sensibly across two or more jurisdictions is genuinely its own planning discipline rather than something that sorts itself out naturally. Tax residency rules, banking access, and even something as basic as which country’s address is on file with a given financial institution can create real friction if left unplanned, and JLIT’s article on organising finances across two countries walks through the practical structure worth putting in place, generally involving a clear view of where you’re tax resident, which accounts and investments make sense to keep in which jurisdiction, and how to keep both sides accessible and properly documented rather than drifting into an informal, harder-to-untangle arrangement over time.

Currency and the cost of moving money internationally

Related directly to cross-border organisation, the ongoing cost of actually moving money between countries, pension income, savings transfers, or property proceeds, adds up considerably over a retirement or a working life spanning decades, and it’s worth taking seriously rather than defaulting to whatever your existing home bank happens to offer. Specialist international transfer services typically beat standard bank exchange rates by a meaningful margin, and JLIT’s article on reducing the cost of moving money internationally covers the specific options worth comparing, genuinely worth reviewing periodically rather than setting up once and never revisiting, since providers and rates shift over time.

Opening and using a Thai bank account

A Thai bank account is close to a practical necessity for daily life here, and it’s worth understanding the basics before you need one urgently. Most major Thai banks, Bangkok Bank and Kasikornbank particularly, have well-established processes for foreign residents, generally requiring a valid visa, proof of address, and sometimes a letter of employment or equivalent depending on your specific visa category. Once opened, a Thai account genuinely simplifies daily spending, rent payments, and utility bills considerably compared to relying purely on international cards, and it’s worth setting one up relatively early after arrival rather than treating it as a lower-priority task, since several other financial and administrative processes, from visa extensions to property transactions, often expect a functioning local account as a matter of course.

Insurance and protection: the piece people underinsure most

Health, medical, and family protection insurance is worth reviewing with the same seriousness as investment and retirement planning, since a single uninsured medical event or an inadequate policy discovered only at the point of a genuine claim can undo years of otherwise careful financial planning in a single stroke. It’s worth asking directly whether your current medical cover was genuinely designed for an expat life in Thailand, or whether it’s a legacy policy from a previous country that happens to still technically be active, since coverage gaps are common in exactly this kind of drift. JLIT’s article on whether you have appropriate long-term medical cover walks through what a genuinely adequate policy should include for a long-term Thailand resident, and JLIT’s Find Your Insurance tool is worth using directly to compare current options rather than assuming an existing policy remains the best available fit.

Life insurance and dependant protection

Beyond medical cover specifically, it’s worth considering life insurance and income protection as part of the same review, particularly for expats supporting dependants, a spouse not working locally, or school-age children whose education costs would otherwise fall entirely on a single income if something happened to the primary earner. Life insurance held internationally, structured with the right beneficiary nominations and, ideally, coordinated directly with the Thai will covered earlier in this guide, ensures the payout actually reaches intended beneficiaries efficiently rather than becoming entangled in the same cross-border probate delays a poorly structured estate can create. It’s genuinely worth treating life insurance beneficiary designations as part of the same estate-planning conversation as the will itself, rather than a separate, disconnected policy decision made years earlier and never revisited.

Estate planning beyond the will itself

It’s worth circling back to estate planning specifically once the wider financial picture is in view, since a will only functions properly alongside a clear understanding of what actually happens to each category of asset on death, not just Thai-based property and accounts but pensions, foreign investments, and life insurance policies too, each of which may have its own beneficiary nomination process entirely separate from what’s written in any will. JLIT’s article on what happens to your estate if you die overseas covers this wider picture directly, worth reading alongside the Thai-will-specific guidance earlier in this piece rather than treating the two as unrelated topics, since a genuinely complete estate plan needs both pieces working together rather than either one in isolation.

A glossary of financial planning terms worth knowing

A handful of terms come up repeatedly throughout this guide and expat financial planning generally, worth having clear definitions for. “Lex situs” is the legal principle, covered earlier regarding wills specifically, that the law of the place where an asset physically sits governs how it’s inherited, regardless of the deceased’s nationality or where their main will was made. “Statutory heirs” refers to the fixed legal order of beneficiaries Thai law applies when someone dies without a valid will, running through six defined classes starting with descendants. “Safe withdrawal rate” describes the percentage of a retirement portfolio that can reasonably be withdrawn annually without a meaningful risk of depleting it before the end of a planned retirement horizon. “Tax residency” refers to which country’s tax rules apply to your income, generally determined by how many days you spend in a given country annually along with other factors, and it’s genuinely possible, and worth understanding if it applies to you, to be tax resident in more than one country simultaneously under certain circumstances. And “remittance basis” describes the specific way Thailand taxes foreign-sourced income based on when and whether it’s actually brought into the country, covered in more detail earlier in this guide.

Property, real estate, and how it fits the wider plan

For expats who own or are considering buying property in Thailand, whether a condo held outright under the foreign ownership quota or a leasehold arrangement on land, it’s worth explicitly connecting that decision back to the estate and retirement planning covered throughout this guide rather than treating a property purchase as a standalone lifestyle decision. A condo represents a genuinely realistic asset to pass on to heirs under Thai law, given foreign ownership is directly permitted, whereas land, as covered earlier in this guide, carries real restrictions for foreign heirs specifically, worth factoring into how much of your overall estate you’re comfortable holding in Thai land-based structures versus condo ownership or assets held elsewhere entirely. Anyone weighing a property purchase in Thailand is well served browsing JLIT’s property search alongside a genuine conversation about how that specific purchase fits the rest of their financial plan, rather than making the decision purely on the property itself.

Putting it all together: a connected planning journey

Every piece covered in this guide, the will, retirement income, pension review, savings strategy, inflation and withdrawal planning, education fees, cross-border organisation, and insurance, works considerably better as a connected sequence than as isolated decisions made whenever a specific worry happens to surface. The practical sequence most people find useful starts with a realistic Thailand lifestyle cost through the cost of living calculator, moves through testing existing resources with the retirement income calculator and pension shortfall calculator, builds forward with the compound growth calculator, stress-tests the result against the inflation calculator and safe withdrawal calculator, and finishes with a proper Thai will and a personal financial review that turns every estimate into an actual plan. Every one of these tools sits together on Find Your Finance, worth working through as the connected sequence it’s designed to be rather than picking a single calculator in isolation.

Where financial planning fits your wider Thailand journey

Whichever stage of your Thailand journey you’re currently at, it’s worth knowing that financial planning looks different depending on how far along your move actually is, and JLIT’s Explore Thailand hub is built around exactly this staged structure. Anyone still deciding whether Thailand is right for them at all benefits from a realistic early look at the cost of living calculator before committing to anything further; anyone actively planning a move should be working through retirement income, pension, and cross-border organisation questions well before landing rather than after; and anyone already living in Thailand, the stage this guide is primarily written for, is best served treating financial planning as an ongoing, periodically reviewed process rather than a one-off task completed in the first year and never revisited. Explore Thailand is worth bookmarking alongside Find Your Finance regardless of which stage currently describes you, since the two are designed to work together across the whole journey.

Financial planning by life stage: a rough timeline

It’s worth knowing roughly how planning priorities shift across a typical expat life in Thailand, since the same guide reads differently depending on where you actually sit. In your 30s and 40s, still accumulating rather than drawing down, the priority sits heavily on the compound growth and long-term savings sections of this guide, building diversified capital while time and contribution consistency are still working most strongly in your favour, alongside getting a Thai will in place early rather than treating it as a later-life task, since it protects whatever you’ve already built regardless of your age. In your 50s, the focus shifts toward stress-testing that accumulated capital against a realistic retirement income target, using the pension shortfall and retirement income calculators to identify any gap while there’s still meaningful time to close it through additional saving or working longer. In your 60s and beyond, already retired or close to it, the safe withdrawal and inflation planning sections become the most immediately relevant, alongside ensuring the will, life insurance beneficiaries, and wider estate plan are all genuinely current rather than reflecting decisions made decades earlier under very different circumstances.

How often this all actually needs reviewing

It’s worth setting a genuine cadence for revisiting this guide’s advice rather than treating any of it as a one-time exercise. A full financial review, covering retirement projections, pension status, and overall portfolio structure, is generally worth doing every one to two years as a matter of routine, or immediately following any major life event, a marriage, the birth of a child, a significant inheritance, or a meaningful change in health. The Thai will specifically is worth revisiting on a similar cycle, and definitely after any change in family structure, since a will drafted before children were born or before a marriage or divorce can leave a genuinely outdated and potentially problematic document in place long after the underlying life circumstances it was written for have changed. Treating financial planning as an ongoing conversation, rather than a box ticked once and filed away, is consistently what separates expats who feel genuinely confident about their Thailand-based future from those who discover a costly gap only once it’s considerably harder to fix.

Final thoughts

A separate, properly drafted Thai will covering your Thai-based assets specifically is one of the more straightforward, affordable pieces of protection available to anyone with meaningful ties to Thailand, particularly if your relationship status or family structure wouldn’t be well served by Thailand’s default statutory rules. This is genuinely worth arranging proactively rather than leaving to chance, and it works best as one part of a wider, connected financial plan covering retirement income, pension continuity, savings, education costs, and cross-border money management, rather than treated as an isolated legal task disconnected from everything else you’re already thinking through about building a life in Thailand.

For guidance on drafting a Thai will and structuring your wider financial plan, get in touch with Lawrence directly, explore the full set of tools and guides on Find Your Finance, or explore JLIT’s directory of estate planning specialists.