The short answer

An FX budget rate is the exchange rate a business uses to plan its costs, prices and profit for the year. Set it realistically — usually around today's forward rates, with a modest buffer in the cautious direction — rather than on hope or last year's rate. Then protect it: fix a large share of your known foreign-currency needs with forward contracts, use limit orders to catch better rates on the rest, and price your products on the budget rate. Track the rate you actually achieve against the budget every month, and review the budget rate each quarter. Done well, currency becomes a planned cost rather than a surprise. Vita Capital, our FX and escrow partner, can help you set, protect and track your budget rate.

Why every foreign-currency business needs a budget rate

• Prices depend on it — your selling prices assume a cost of goods, which assumes an exchange rate.
• Profit depends on it — a few percent on the rate can be a large share of your margin.
• Cash flow depends on it — a weaker baht means more baht needed to pay the same supplier.
• Lenders and owners expect it — a budget with a clear, protected rate is far more credible.
• It ends guesswork — everyone in the business works to the same number.

Without a budget rate, currency becomes a constant source of surprises. With one, it becomes a managed part of the plan.

How to set a budget rate

There's no single right answer, but most businesses choose from a few sensible approaches:

Start from the forward rate

The forward rate for each month of the budget year is the market's price for currency on that date — a solid, objective starting point. With Thai interest rates at 1.00% and US rates at 3.75–4.00% in October 2026, forward dollar rates are a little below spot.

Add a buffer

Many businesses then add a cautious buffer — for an importer, a slightly weaker baht than the forward; for an exporter, a slightly stronger one. The buffer absorbs modest moves on the unhedged part of the budget.

Use rates you've already fixed

If you've already booked forwards for part of next year, those rates form part of the budget rate — a blend of fixed and estimated rates.

Avoid the traps

• Last year's average — the baht moved about 6% between September 2025 and July 2026, so last year's rate may be far from today's.
• The rate you'd like — hope isn't a plan.
• A forecast — nobody predicts currencies reliably; use market rates and a buffer instead.

Worked example: US$1.2 million of imports

A Bangkok distributor imports US$100,000 of goods a month — US$1.2 million a year. Spot is ฿33.80, forwards are around ฿33.56, and it sets a cautious budget rate of ฿34.30, giving a currency budget of ฿41,160,000. It fixes 60% of the year (US$720,000) with forwards at ฿33.56 and leaves 40% to buy at spot.

Illustration only. With 60% fixed, the business stayed under budget in every scenario — the point of protecting a budget rate is to remove the risk of a large overrun.

Protecting the budget rate

A budget rate only matters if you protect it. The main tools:

Forward contracts

Fix the rate for a share of each month's expected needs. In our example, fixing 60% of the year kept the business under budget in every scenario. Our guide to forward contracts for importers and exporters explains how they work.

Limit orders

Set orders to buy currency automatically if the rate improves to a target — a good way to beat the budget rate on the unhedged portion.

Stop-loss orders

Set an order to buy automatically if the rate moves sharply against you, capping the damage on the unhedged portion.

Natural hedging

Matching foreign income with foreign costs reduces how much you need to protect at all.

Layering

Many businesses fix most of the next three months, around half of months four to six and less beyond, topping up each month. That blends rates over time and keeps the budget within reach.

Where to start

Tools and expertise to protect your budget — and the right cover for your business.

Building the currency part of your budget

1. List foreign-currency flows by month — purchases, sales, loan payments, fees and dividends.
2. Net them by currency — so you budget only what you actually need to buy or sell.
3. Get forward rates — for each month of the budget year, from your FX provider.
4. Choose the buffer — how cautious to be, based on your margins.
5. Set the budget rate — per currency, sometimes per quarter.
6. Convert to baht — and build the results into your profit and cash-flow budget.
7. Agree the hedging plan — how much to fix, when and with which tools.
8. Record it in your FX policy — so everyone works to the same plan.

Our guide to managing business FX exposure explains how to map your flows and write a simple FX policy.

Pricing around the budget rate

Your budget rate should flow straight into your prices:

• Cost your products at the budget rate — not today's spot rate.
• Set quote validity periods — so you're not tied to an old rate for months.
• Include currency clauses in long contracts — allowing prices to adjust if rates move beyond a band.
• Fix the rate when you fix a big price — booking a forward when a large order or contract is agreed.
• Review price lists — when the actual rate moves well away from the budget rate.

Tracking how you're doing

Each month, compare three numbers for each currency:

• The budget rate — what you planned.
• The achieved rate — the blended rate of everything you actually converted, including forwards.
• The current market rate — where things stand now.

The difference between budget and achieved rate, multiplied by the amount converted, is your FX variance — the effect of currency on profit for the month. Track it alongside your other budget variances, and report it to owners and managers. Over time, it shows whether your hedging approach is doing its job: keeping the variance small and predictable.

Monthly and quarterly routines

Every month

1. Update forecasts — new orders and expected receipts.
2. Top up hedges — to the levels in your policy.
3. Check open orders — limit and stop-loss levels.
4. Record the achieved rate — and the FX variance.

Every quarter

1. Review the budget rate — is it still realistic for the rest of the year?
2. Review hedge levels — should you fix more or less?
3. Review prices — do they still reflect your costs?
4. Meet your FX provider — to discuss markets and your plans.

Budgeting for exporters and tourism businesses

Exporters, hotels and other businesses paid in foreign currency face the opposite risk: a stronger baht reduces the baht value of their income. Their budget rate should lean the other way — slightly stronger than the forward — and their hedges should fix the rate at which they sell foreign currency.

The 2025 experience is a good reminder: when the baht rose about 8% in the first nine months of the year, exporters and hotels paid in dollars, euros and pounds saw the baht value of their income fall. Those with a protected budget rate were far better placed to keep margins intact.

Tourism businesses often receive foreign-currency payments from tour operators months ahead of a season. Fixing the rate on part of those receipts — or holding them in an FCD account and converting with limit orders — turns the season's revenue into a known number.

Scenario planning

Alongside the budget rate, test what different rates would do to profit. A simple scenario table for an importer:

Illustration. Scenario planning shows how much protection you really need — and makes the case for hedging to owners and lenders.

Currency and cash flow

Exchange rates affect cash as well as profit. A weaker baht means more baht leaving the business to pay the same supplier invoice, often before customers have paid you. Build currency into your cash-flow forecast month by month, using the budget rate for unhedged amounts and the fixed rate for hedged ones. Know when forwards settle, and make sure the baht is in the account on the date. If you use an FCD account, plan when to top it up so you're not forced to buy currency at a bad moment.

Budgeting in more than one currency

Many Thai businesses deal in several currencies — dollars for Chinese suppliers, yen for Japanese components, euros for European customers. Set a separate budget rate for each, and net flows within each currency first. Where income in one currency offsets costs in the same currency, you need less protection. Keep the reporting simple: one line per currency showing budget rate, achieved rate and variance, and a total effect on profit.

Rolling forecasts

An annual budget is set once, but business doesn't stand still. Many businesses keep a rolling 12-month forecast of their currency needs, updated every month. Each month, a new month is added at the end, hedges are topped up for the months ahead and the forecast rate is updated for what's still unhedged. A rolling forecast keeps hedging aligned with the business as it actually develops, rather than with a plan made a year ago.

Reporting to owners and lenders

Owners, boards and banks want to know that currency risk is under control. A short monthly or quarterly note does the job:

• Budget rate and achieved rate for each currency.
• FX variance — the effect on profit.
• Hedge cover — the share of the next 3, 6 and 12 months fixed.
• Scenario impact — what a 5% or 10% move would do to the rest of the year.
• Actions — new hedges, rate orders and any change to the budget rate.

Clear reporting builds confidence — and lenders in particular look favourably on businesses that manage currency risk in a disciplined way.

What the last two years taught budgeters

The baht's journey from 2025 to 2026 is a textbook case for FX budgeting:

• Trends reverse — after rising about 8% in the first nine months of 2025, the baht fell to a one-year low by June 2026 and a 15-month low by late July.
• Last year's rate is a poor guide — budgets built on 2025's strong baht understated 2026 import costs.
• Exporters and importers feel opposite pain — 2025 squeezed exporters; 2026 squeezed importers.
• External events matter — the Bank of Thailand linked the baht's volatility in 2026 to geopolitical developments in the Middle East and shifting expectations for US interest rates.
• Protected budgets held up — businesses that fixed a large share of known needs stayed close to plan in both years.

The lesson isn't to predict the next move — it's to build a budget that works whichever way the baht goes.

Budget rates for foreign-owned subsidiaries

Thai subsidiaries of foreign groups often have two budget rates to think about: the rate for their own trading in foreign currency, and the rate the parent uses to translate the subsidiary's baht results into its own currency. Agree both with the group finance team at budget time. Plan the currency of intercompany loans, management fees and dividends, and consider fixing the rate on large planned payments to the parent. Since January 2026, Thai residents' foreign-sourced funds under US$10 million no longer have to be brought back to Thailand, which can give groups more flexibility in where currency is held — your accountant can confirm how this applies.

Common mistakes

• Using last year's rate — markets move; use forward rates and a buffer.
• Setting the rate and forgetting it — an unprotected budget rate is just a hope.
• Hedging everything at once — layering over time smooths results.
• Not tracking variances — you can't manage what you don't measure.
• Ignoring the margin — a poor conversion rate on every payment eats into the budget.
• Treating hedges as bets — success is hitting the budget, not beating the market.

Three real-world examples

These are illustrations, not real businesses.

A Bangkok distributor

Budgeting US$1.2 million of imports at ฿34.30, it fixed 60% of the year with forwards and used limit orders on the rest. When the baht weakened, it still came in under budget.

A Samui resort

The resort budgets its euro and sterling receipts from tour operators at cautious rates, fixes half of the high season's receipts with forwards in the summer, and converts the rest with limit orders.

A Rayong parts manufacturer

Buying materials in dollars and selling to Japanese customers in yen, it sets a budget rate for each currency, nets its flows where it can, and reviews both rates every quarter with its FX provider.

Your FX budgeting checklist

• Foreign-currency flows listed by month and currency.
• Forward rates obtained for the budget year.
• Buffer chosen and budget rate set per currency.
• Budget rate built into prices and profit plan.
• Hedging plan agreed — how much, when, which tools.
• Forwards booked for the first months.
• Limit and stop-loss orders set for the rest.
• Monthly variance tracking in place.
• Quarterly review in the diary.

Questions to ask your FX provider

1. What are the forward rates for each month of our budget year?
2. How would you help us protect a budget rate?
3. Can we layer forwards month by month?
4. Do you offer limit and stop-loss orders?
5. Can you report our achieved rates?
6. Do you provide market updates for budget reviews?
7. Is a deposit required for forwards?
8. Who will be our dedicated contact?

Top tips

• Start from forward rates, not last year's.
• Add a cautious buffer.
• Protect the rate with forwards on known needs.
• Layer hedges month by month.
• Price on the budget rate.
• Track the variance every month.
• Review the rate every quarter.
• Work with a provider who knows your business.

How we researched this guide

This guide draws on Trading Economics' reporting of the baht's moves (September 2025 to July 2026); the Bank of Thailand's Monetary Policy Committee decision of 26 August 2026; the Federal Reserve's FOMC statement of 16 September 2026; Wise's review of bank margins (August 2026); and Vita Capital's published corporate services. Examples are illustrations, not forecasts. Checked 14 October 2026. This guide is general information, not financial advice.