The short answer

A limit order converts your pounds automatically if the rate rises to your target. A stop-loss order converts them if the rate falls to your floor. Neither guarantees a result — a target may never be reached — but together they let you aim for a better rate while capping how bad it can get. They suit large sums with a flexible deadline. Vita Capital, our FX partner, offers both: you "set a predetermined exchange rate and let the system execute automatically when it is achieved", with specialists who send insights and alerts.

What a limit order is

A limit order is a standing instruction to buy currency at a specified rate or better. Say the rate today is about ฿44.38 to the pound and you'd be happy at ฿45.50. You place a limit order at ฿45.50. If the market reaches that level — this afternoon, next week or in two months — your pounds are converted automatically at your rate. If it never gets there, nothing happens.

• It's an upside order. It targets a better rate than today's.
• It costs nothing to place with most specialists, and can be changed or cancelled until it fills.
• It isn't guaranteed. The market may never reach your target.
• It runs until it fills, expires or you cancel it — you choose the expiry.

What a stop-loss order is

A stop-loss order is the mirror image. It's an instruction to convert if the rate falls to a level below today's. Its job isn't to get you a better rate — it's to stop a fall in the pound eating further into your money.

With the rate at ฿44.38, you might set a stop-loss at ฿43.05, about 3% lower. If the pound weakens to that level, your money is converted there, rather than at ฿42 or ฿41 if the slide continues. You'll get fewer baht than today — but a known, limited amount fewer.

• It's a protection order. It caps how much worse your outcome can get.
• It's most useful for money you must convert eventually, such as house-sale proceeds.
• It can fill below your level if the market jumps suddenly past it.
• It pairs naturally with a limit order — one for the upside, one for the downside.

Limit, stop-loss, spot or forward?

The four tools an FX specialist offers, side by side.

General description; terms vary by provider. Vita Capital's services from its private clients page (October 2026).

How it works, step by step

1. Open an account with a specialist, with the usual identity and source-of-funds checks.
2. Talk through your target with your FX specialist — what's realistic, and by when.
3. Place the order: amount, target or floor, and an expiry date.
4. Get on with life. The order is watched around the clock through the trading week.
5. Get a notification when it fills, with the rate and the amount of baht confirmed.
6. Send your pounds by the funding deadline, and the baht are paid to your Thai account.

Where to place a limit or stop-loss order

Automatic orders are a specialist service. Our number one, and the alternatives for everyday money.

A worked example: £80,000 from a house sale

You've sold your UK home and have £80,000 to move to Thailand in the next few months, with no fixed date. Today's rate is ฿44.38. You place a limit order at ฿45.50 and a stop-loss at ฿43.05.

Illustration at ฿44.38 = £1 (12 October 2026), before the provider's margin. Orders aren't guaranteed to fill at exactly your level if the market moves suddenly.

Setting a realistic target

The most common mistake is a target that's simply too ambitious. If you set a limit order at a rate the pound hasn't seen for years, it'll probably sit there until it expires — and you'll end up converting at whatever the rate is on the day.

• Look at recent ranges with your specialist — where the rate has been over the past few months, not years.
• Remember the margin — your target is the rate you receive, so the market must move a little further to reach it.
• Match the target to the time — a small improvement over weeks, a bigger one only if you can wait months.
• Write down your fallback — what you'll do if the order hasn't filled by your deadline.

What moves the pound against the baht

You don't need to forecast the market to use a limit order, but it helps to know what tends to move it — so you can place orders around the right moments.

Big announcements are exactly when a limit order earns its keep — it's already in place if the rate spikes for an hour while you're asleep in Thailand. They're also when stop-loss orders are most likely to fill below their level, so allow a sensible gap.

Rate alerts or automatic orders?

Many apps offer rate alerts. They're useful — but they're not the same as an order.

General comparison. Rates can move in minutes, so by the time you act on an alert the rate may have gone.

Ways to combine orders

Expiry dates and deadlines

Every order needs an end point. Here are the usual choices and how to use them.

Industry practice; durations from a couple of days up to 6 months are offered by some providers (OFX). Confirm terms with your provider.

What can go wrong

1. The target is never reached. You'll convert later at whatever the rate is — possibly worse than when you started.
2. The market gaps. Around big news, rate decisions or elections, the rate can jump past your level, so a stop-loss may fill below it.
3. The order fills while you're not ready. Once triggered, it's binding — you'll have a short deadline, often a few business days, to send the pounds.
4. The weekend. The market closes from Friday evening to Sunday evening, so weekend news can move the rate before your order can react.
5. Plans change. Cancel or amend unfilled orders as soon as your plans change — once filled, it's too late.
6. Forgetting it's there. Keep a note of every open order, its level and its expiry.

Who uses limit and stop-loss orders

Questions to ask before you place an order

• Is my target the rate I'll receive, including your margin?
• Is there any cost to place, change or cancel an order?
• How long can the order run, and can it be good till cancelled?
• How will you tell me it's filled, given I'm in Thailand?
• How long do I have to send funds once it fills?
• If I place a limit and a stop-loss, is one cancelled when the other fills?
• What happens if the market gaps past my stop-loss level?
• Can the baht be paid straight to a seller or developer, or arrive as foreign currency for an FET form?

When you ask through our team, Vita Capital's specialists go through all of this with you before any order is placed.

Mistakes to avoid

1. Setting a target that's unrealistic for your timeframe.
2. Setting no expiry when you actually have a deadline.
3. Not having the funds ready when the order fills.
4. Placing a stop-loss too close to today's rate, so normal daily moves trigger it.
5. Using an order for a fixed-date payment that a forward contract would protect properly.
6. Leaving old orders open after plans change.

Managing orders safely from Thailand

• Keep your phone number and email up to date with your provider, so fill notifications reach you.
• Only pay into the client account named in your provider's own confirmation.
• Use a private, protected connection when logging in from cafés, hotels and airports.
• Turn on two-factor sign-in for your provider and bank accounts.

How we researched this guide

We used Vita Capital's own published information on limit and stop-loss orders for private clients (October 2026), and published explanations of limit and stop-loss orders from OFX and Cambridge Currencies as industry examples of terms such as expiry, deposits, funding deadlines and market gaps. Worked examples use the mid-market rate of ฿44.38 = £1 (Wise, 12 October 2026) and are illustrations, not quotes. Vita Capital is JLIT's FX and escrow partner; we arrange introductions and may receive a fee, which never changes the rate you're quoted. Checked 13 October 2026. This guide is general information, not financial advice.