The short answer

Financial planning for an international family means building a family budget in baht that survives a weaker rand; planning school and university fees years ahead — started early, investment growth can pay around 40% of the bill; protecting your partner and children with life cover, health cover and clear arrangements if you die or can't manage your affairs; understanding property rules, because a foreign partner can't own Thai land; supporting family in a way that's affordable and fair; checking tax and inheritance in both countries — including the capital gains tax that can fall due on death when your spouse isn't SA resident; and having wills and guardianship in place in both countries. Review it every year, and whenever the family changes.

What makes international families different

Most financial planning advice assumes a family where everyone shares the same nationality, lives in the same country and will inherit under the same law. International families break each of those assumptions, and that's where the risks — and opportunities — lie.

Different nationalities, different rights

A Thai partner can own land in Thailand; a South African partner generally can't. A child with Thai nationality has rights here that a South African parent doesn't. A Thai partner may face visa rules to live in South Africa that a South African partner doesn't. Your plan has to work for every member of the family under their own rules, not just yours.

Different currencies at different times

School fees, housing and daily life may be in baht; a South African university, a retirement annuity and an inheritance may be in rand. Each goal has its own currency and its own date, and the exchange rate in between can make a large difference — the rand moved between about ฿1.89 and ฿2.07 in 2026 alone.

Different family expectations

In Thailand, supporting parents is often seen as a duty, not a choice. Many South African families also help relatives at home, as well as children at university. Many international families do both at once. That's admirable — but it needs budgeting honestly, so that generosity today doesn't undermine your partner's or children's security tomorrow.

Different laws when someone dies

Estate duty, capital gains tax on death, wills, the Master's office and guardianship all work differently in the two countries. Without planning, a surviving Thai partner can face frozen South African accounts while an estate is wound up, an unexpected tax bill, or a will that simply doesn't work in Thailand.

The family plan at a glance

The eight areas every international family plan should cover. Each is explained below.

A framework for discussion. Talk it through as a family — it works far better when both partners understand the plan.

A family budget in two currencies

Start with what family life actually costs, in baht: housing, food, utilities, transport, school fees and extras, health insurance for everyone, help for parents, trips home to see family, and savings. Then list your income and the currency it arrives in. If most of it is in rand, convert it at today's rate and at a rate 10% worse. A family budget that only works at a good exchange rate is fragile — and families have less room to cut back than a single retiree.

Three habits make a big difference:

• Hold several months of family spending in baht, so a bad month for the rand never forces you to convert at a poor rate.
• Use a cheap, regular route for monthly family money, on the same date each month.
• Fix the rate for big, known costs — the school year's fees, a rental contract — so the rand can't move the price.

Keep a reserve outside the rand too. Many South African families in Thailand hold part of their savings in US dollars or euros in an offshore account, so the family isn't relying on one currency for everything.

Make sure both partners can see the budget and reach the accounts. In many families one person handles all the money; if that person is suddenly unable to, the other needs to know where everything is and how to pay the bills.

Planning for international school fees

For families with children, school fees are often the single largest cost — larger than housing — and they run for many years. Planning them properly is one of the most valuable things you can do.

What school actually costs

Based on Bangkok schools' published 2026/27 fees, yearly tuition ranges from about ฿260,000 to ฿570,000 at budget schools, ฿220,000 to ฿800,000 at mid-range schools, and ฿540,000 to almost ฿1.2 million at the top schools. Once you add buses, lunches, uniforms, trips and exam fees, a realistic planning budget is about ฿550,000 a year per child at a budget school (about R270,000), ฿750,000–฿900,000 at a mid-range school and ฿1.15 million or more at a top school (about R564,000). Year one costs 25–30% more, because of one-off fees: registration, enrolment and development fees can run to ฿100,000–฿260,000, and many schools also ask for a refundable deposit.

The lifetime cost

Multiply it out and the numbers are striking. Two children at a mid-range school for twelve years each comes to about ฿19.8 million — roughly R9.7 million at today's rate — before any rise in fees, any fall in the rand or university costs. Few families can pay that comfortably from income alone, which is why school fees need their own plan.

How to plan for it

1. Write the costs year by year for each child, from now until they leave school.
2. Allow for fee rises — schools usually increase fees most years.
3. Separate the money by horizon: next year's fees in cash, in baht; fees three to seven years away in steadier investments; fees further off can be invested for growth.
4. Fix the exchange rate for each year's fees if your income is in rand.
5. Plan for university separately — South African, Thai or elsewhere — with its own currency and dates.
6. Protect the plan with life cover, so the children's schooling continues if you die.

Our team can help you plan school fees and find the right school. Ask about school-fee planning, or compare schools in our international schools directory.

Higher education fee planning: let growth pay part of the bill

Most families pay school and university fees out of income, year by year, as the bills arrive. That works — but it means every rand of the bill comes out of your pocket. Higher education fee planning turns that around. You start putting money aside years before the fees are due, invest it for growth, and let the investment returns pay a large part of the cost.

The numbers are powerful. Say you want R2,000,000 ready in thirteen years — for a child's secondary school years, or university. Saved in cash at no interest, that's about R12,800 a month. Invested in a plan growing at 8% a year after charges — the growth Lawrence's education plans typically aim for — it's about R7,300 a month. You pay in around R1.14 million; growth provides the other R860,000. That's roughly 40% of the cost paid by growth rather than by you.

Why starting early matters so much

Growth needs time. The same R2,000,000 goal costs far more each month the later you start, and growth does less of the work:

Monthly saving needed to reach R2,000,000, assuming 8% a year growth after charges. The bar shows the share of the goal paid by growth: 43%, 34%, 28% and 18%. Illustration only — growth isn't guaranteed and can be higher or lower.

The best time to start is when a child is born or starts primary school. The second-best time is now. Even a few years of growth makes a real difference — and a plan can be built to pay out exactly when each year's fees fall due, in the currency the school or university charges. For school fees in baht or a university abroad, money saved in hard currency also protects the plan from a weaker rand.

What a good education plan looks like

• Built around the dates — money ready when each school year or university term begins.
• Invested for growth early, then moved to safer holdings as fees get close.
• In the right currency — baht for Thai international schools, rand for South African universities, hard currency for study elsewhere.
• Protected — with life cover so the plan continues if a parent dies.

Lawrence specialises in education fee planning for expat families in Thailand. A free chat will show you what your own children's schooling and university could cost, and how much of it growth could pay. Talk to Lawrence about education fee planning, or start by comparing international schools.

Where to start

A review of the whole family's finances, a better way to pay school fees and larger family transfers, our number-one offshore account for family savings in hard currency, and a cheap route for monthly family money.

Protecting your partner and children

In an international family, one partner's income often supports everyone — and if the main earner is the foreign partner, their death or serious illness can leave the family without income, without a visa sponsor and without easy access to money held in South Africa. Protection is the foundation the rest of the plan stands on.

Health cover for the whole family

Private healthcare in Thailand is excellent but can be expensive for a serious illness, a difficult birth or a child's accident. International health cover for the whole family, with maternity and children's cover where needed, is essential. A South African medical aid usually won't cover you properly while you live here, so check what you actually have.

Life cover

Life cover pays a lump sum if you die. For a family, the right amount is usually enough to clear any debts, pay the rest of the children's school fees and replace several years of income while your partner adjusts. Make sure the payout can reach your partner quickly — a policy with a named beneficiary pays outside the estate, so it isn't held up while South African accounts are frozen — and check that a South African policy still covers you while you live abroad.

Income and illness cover

Serious illness can be as damaging financially as death, and lasts longer. Critical illness cover pays a lump sum on diagnosis of a serious condition; income protection replaces part of your income if you can't work.

If you can't manage your affairs

Think about who would run the family's finances if you were unable to. A South African power of attorney ends if you lose mental capacity, so ask about the alternatives, and make suitable arrangements in Thailand too. Make sure your partner knows where every account is and how to reach it.

We arrange health, life and protection quotes for families in Thailand. Ask our team for a family insurance quote.

Visa money: staying together

For a South African married to a Thai national, a marriage-based (Non-O) extension is a common way to live in Thailand. The financial requirement is ฿400,000 in a Thai bank account, or a monthly income of ฿40,000, or a combination of the two. A deposit must usually be seasoned for two months before the first application and three months before each renewal. Many people use the deposit route or show twelve months of regular transfers into their Thai account; if you want to prove income another way, check with the South African Embassy in Bangkok and your immigration office what they'll accept.

Treat that money as locked, not as savings or an emergency fund. Many families keep it in its own account so it's never accidentally spent. If the family might move to South Africa in future, check the Department of Home Affairs' current spousal visa rules for your Thai partner well in advance.

Property: who owns the family home?

Property is where international families most often get into difficulty, because of a simple rule: foreigners generally can't own land in Thailand. A foreign partner can own a condo unit within the building's foreign quota, but a house on land is usually bought in the Thai partner's name.

That has consequences worth thinking through calmly, as a couple:

• When a Thai spouse buys land, the Land Office usually asks the foreign spouse to confirm in writing that the money is the Thai spouse's own. Understand what that means before you sign.
• Arrangements such as a registered lease or usufruct can give the foreign partner a recorded right to live in the home. Take independent legal advice on what suits your situation.
• A condo bought by the foreign partner needs the money to arrive from abroad in foreign currency, with the right bank paperwork, to count toward foreign ownership.
• Money sent from South Africa for a purchase counts against your R2 million single discretionary allowance each calendar year, with SARS approval for more — plan the timing.
• Wills matter even more — so the home passes as you both intend if either of you dies.

None of this is a reason to avoid buying. It's a reason to agree the arrangements openly, put them in writing and take independent advice. Our guide to funding a Thai property purchase from overseas explains the payment side.

Supporting parents and relatives — sustainably

Helping parents and wider family is part of life for many Thai families, and for many South African partners it's a source of real pride. The financial risk isn't generosity — it's open-ended generosity that grows year by year until it threatens the family's own security.

A few practical principles help:

1. Agree a regular amount as a couple and build it into the budget, rather than responding to each request separately.
2. Keep a separate fund for one-off needs — a hospital bill, a house repair — with a clear limit.
3. Prefer help that lasts — health insurance for a parent, school costs for a niece or nephew — over cash that disappears.
4. Be careful with loans to family; treat them as gifts unless you're genuinely happy to lose the money.
5. Protect your partner's future — support for parents shouldn't come at the cost of your own retirement or your children's school fees.
6. Write down large gifts, especially property, so everyone understands what was given and why.

On tax, Thailand has a gift tax, but most family support never comes close to it. Gifts from parents, children or a spouse are exempt up to ฿20 million in a calendar year, with 5% on the excess; customary gifts and support from others are exempt up to ฿10 million. If you're still South African tax resident, SARS donations tax can apply to what you give — at 20% — but the first R100,000 you give each tax year is exempt, gifts between spouses are exempt, and genuine contributions to someone's maintenance are exempt within reason. Regular, modest support for parents-in-law usually falls well inside those exemptions.

Tax and inheritance in two countries

International families face the same income tax rules as other expats — Thai tax residence at 180 days, and Thai tax on foreign income earned from 2024 onwards that's brought into Thailand. Our guide to receiving overseas income in Thailand explains them. Where families really differ is inheritance.

Estate duty and a Thai spouse

While you're ordinarily resident in South Africa, estate duty applies to your worldwide assets: 20% on the dutiable estate up to R30 million and 25% above, after a R3.5 million abatement. Anything you leave to your surviving spouse is deductible — and that deduction applies even when your spouse isn't South African resident, so a Thai partner can still benefit. Any abatement the first spouse doesn't use passes to the survivor, up to R7 million in total.

Capital gains tax on death — the catch

Death counts as a disposal of your assets for capital gains tax. Normally, assets left to a surviving spouse roll over without tax, and the spouse simply takes on your base cost. But that roll-over doesn't apply to a non-resident surviving spouse. If your Thai partner has never been South African tax resident, your estate can face a CGT bill on growth in shares, unit trusts and property left to them, even though there's no estate duty. It's a common surprise, and one worth planning for with life cover or by looking at how assets are held.

Thai inheritance tax

Thailand's inheritance tax only applies to the part of an inheritance above ฿100 million, and spouses are exempt. Most families won't pay it, but larger estates should check.

Retirement funds and children's savings

Pension and provident fund death benefits are allocated by the fund's trustees, who must consider everyone who depended on you — your nomination guides them but doesn't bind them. Keep your nominations up to date and tell the fund about your Thai family. For children, tax-free savings accounts can be opened in a child's name, but contributions use up the child's own lifetime limit; many expat families instead save through their own investments or an account earmarked for each child. Keep clear records of what belongs to whom.

Wills and guardianship in both countries

If you do one thing after reading this guide, make sure your wills are in order — in both countries.

A South African will deals with South African assets: bank accounts, investments, property. A Thai will deals with Thai assets: bank accounts, a condo, a car. The two need to be drafted to work together, so one doesn't accidentally revoke the other. Without a Thai will, Thai assets pass under Thai rules of intestacy, often through a court process that can take months. In South Africa, the estate is wound up under the Master of the High Court and bank accounts are usually frozen until an executor is appointed — while the family may need money urgently.

Guardianship matters just as much for families with young children. If both parents died, who would look after the children, and where would they live — in Thailand or South Africa? Name guardians in your wills, discuss it with them, and make sure the arrangements work in the country where the children would actually be.

Finally, check every beneficiary nomination on living annuities and life policies — they pay outside your will — and keep a "where is everything" file that your partner can read, in a language they're comfortable with.

A worked example: Pieter and Ploy

Pieter is 46 and South African; Ploy is 39 and Thai. They live in Bangkok with two children, aged 6 and 9, who hold both nationalities. Pieter works remotely for a company in Johannesburg, paid in rand. Ploy's parents live in Khon Kaen, and Pieter has a 19-year-old daughter studying in Stellenbosch. All figures are illustrations at ฿2.04 = R1.

Budget. Family life costs about ฿180,000 a month — about R88,000. They stress-test it at a rand 10% weaker, keep four months' spending in baht as a buffer, and build a hard-currency reserve in an offshore account.

School fees. Both children are at a mid-range international school. Including extras, that's about ฿1.65 million a year — about R809,000. They plan each year's fees ahead, fix the rate for each school year with a forward contract, and start an education plan for university, invested for growth, while the children are still young enough for growth to pay a large share.

Protection. Family health cover, and life cover on Pieter large enough to pay the rest of both children's schooling and several years of family spending, with Ploy named as beneficiary. Critical illness cover too, because the family depends on his income.

Visa money. ฿400,000 in its own Thai account for Pieter's marriage extension, never touched.

Property. They're thinking about buying a house. They take independent legal advice, agree a registered arrangement giving Pieter the right to live there, plan the transfers within his offshore allowance, and update both wills first.

Family support. A fixed ฿15,000 a month to Ploy's parents — about R7,350, comfortably inside the donations tax exemptions — plus health insurance for her mother, and a monthly allowance to Pieter's daughter.

Inheritance. Pieter is still South African tax resident, so estate duty applies to his worldwide assets. What he leaves Ploy is deductible, but because she isn't SA resident, there's no CGT roll-over on his unit trusts. They take advice on extra life cover to meet that bill.

Wills. South African and Thai wills that work together, guardians named for the children, and his pension fund told about everyone who depends on him.

It's a complicated family — but not a complicated plan. Each piece has a clear owner, a currency and a date.

The family finance mistakes we see most often

1. Not planning school fees until the first bill arrives — and paying them at whatever rate the bank offers.
2. No life cover on the partner whose income pays for everything.
3. One partner knowing nothing about where the money is or how to reach it.
4. Buying land without clear arrangements or independent advice for both partners.
5. Open-ended family support that slowly erodes the family's own security.
6. Assuming everything left to a Thai spouse is tax-free, forgetting CGT on death.
7. Having only a South African will, leaving Thai assets to a slow court process.
8. No guardians named for young children.

Questions to talk through as a family

The best family plans come from honest conversations. These questions are a good place to start.

• Where do we want to live in ten and twenty years — here, South Africa, or both?
• What kind of schooling do we want, and can we afford it to the end?
• How much can we give our parents without risking our own future?
• Who owns what — and is everyone happy with that?
• What happens if one of us dies or can't work?
• Does each of us know where every account and document is?

Keeping the family's finances secure

Family finances often mean several people using shared accounts and devices, often on home and school Wi-Fi. A few habits keep everyone safe:

• Use a family password manager so both partners can reach important accounts safely.
• Turn on two-factor sign-in on every bank and investment account.
• Use a private, protected connection on hotel, café and shared Wi-Fi.
• Teach children and relatives to recognise scam calls and messages.

How we researched this guide

We used Thailand Starter Kit's guide to international school fees, based on schools' published 2026/27 fee schedules (4 August 2026); Emerhub's 2026 guide to the Thai marriage visa; Nishimura & Asahi on Thailand's gift tax; Forvis Mazars on Thailand's Inheritance Tax Act and on tax in South African deceased estates; SARS on donations tax; the Tax Faculty on CGT roll-over to a surviving spouse; and our own guides to receiving overseas income and funding a Thai property purchase. Worked examples use ฿2.04 = R1 and are illustrations. Checked 23 October 2026. This guide is general information, not personal financial, tax or legal advice — rules change and individual circumstances differ.