Withdraw your trading bot profits or let them compound?

Your bot has had a good month and there is more in the account than you put in. So do you withdraw the profits or compound them? Take out a fixed share on a fixed day, following a rule you set before the profit arrives. Compounding grows faster on paper, but on a €1,000 account it is worth about €66 in the first year. Money sitting in your bank account cannot fall with the market when it turns.

That's the position. Here are the numbers behind it, because without them this is just an argument about feelings.

What does compounding actually add?

Less than the charts on social media suggest, especially early on. We use €1,000 of starting capital (pounds work the same) and 3.0% net profit a month for twelve months. That 3% is a round number for the arithmetic. It is not a promise and it is not our bot's result. Real months are never flat: one is up 5%, the next closes red. If you want an honest range first, read what a trading bot can realistically earn.

Three routes side by side. Leave everything in, take all the profit out every month, or take half. The last column is for the next section.

After a year, the person who left everything in is €65.76 ahead of the person who took everything out. That is the entire compounding gain for year one. Dinner for two.

Compounding is real, it just needs time. Run the same 3% out to 24 months and the compounded account sits at €2,032.79, while the person taking it all out has €1,720.00 in total. Now the gap is €312.79. The longer the horizon and the bigger the account, the more compounding counts. On a small account in year one it is mostly theory.

Look at the middle route too. Taking half every month leaves you only €34.52 behind the full compounder after twelve months. The difference is that €195.62 of your total is already in your bank. Giving up a little growth in exchange for money that is safe: the next section shows why that trade is worth it.

Withdrawn money cannot fall with the market

Now the last column. Say month 13 brings a 20% drawdown. On a forex account that happens.

The full compounder loses €285.15. The person who took it all out loses €200.00, because there was never more than €1,000 in the market. The ranking flips. The account that grew best all year ends lowest of the three at €1,140.61. One bad month wipes out the lead from twelve good ones, and then some.

Recovery makes it sharper. Getting from €1,140.61 back to €1,425.76 takes a 25% gain, not 20%. That is the asymmetry we unpack in the maths of drawdown recovery: a percentage loss always needs a bigger percentage gain to win it back.

There is a second layer. If your bot sizes risk as a percentage of your balance, positions get bigger as the account grows. Compounding also means bigger trades, so the 20% drawdown lands on a bigger number. Withdraw, and that kind of bot automatically trades smaller. Which is exactly what you want.

Profit in your trading account is a number on a screen. Once it is in your bank, no trade can touch it.

What happens to your bonus when you withdraw?

This is where people get caught out, because almost nobody reads this part of the terms. Vantage gives a bonus on your first deposit. That bonus is credit: extra trading room you cannot withdraw yourself. Vantage's help centre puts it like this: if you withdraw part or all of your deposit or profits, or make an internal transfer, a portion of your bonus credit is deducted pro rata to the amount withdrawn.

That has a knock-on effect you only notice if you look for it. Credit counts towards your equity, and your equity is the buffer between you and a margin call. So a withdrawal costs you twice: the amount itself, plus a slice of that buffer. If you trade with a bonus at another broker, check that broker's terms on this point.

How the deduction is calculated differs by promotion and by region, and we are not going to invent a number for it. Open the terms of your promotion in your client portal and read them before you settle on a withdrawal rule. Then you know what a withdrawal costs in advance. Otherwise you find out when your margin level is suddenly lower than you expected.

Your gut will not help you here

In 1990, economists Richard Thaler and Eric Johnson ran real-money experiments on how people react to what just happened. After a gain, people take more risk, as if the winnings were not quite theirs. After a loss, any option that offers a chance to break even suddenly looks very attractive. The paper appeared in Management Science and is still widely cited.

Apply that to your bot. After a green month, withdrawing feels like a waste, because it is going so well. After a red month, withdrawing feels like locking in a loss, so first you want to get back to where you were. Both feelings push the same way: never withdraw. That is how an account runs for three years without a single pound or euro reaching your bank.

On Forex Factory the question of how much people withdraw each month comes up year after year. Answers range from nothing to everything, and a good chunk land on roughly half. The downside of skimming everything gets mentioned too: after a few losing months you are below your starting balance and topping it back up. Then you are withdrawing and redepositing at the same time, which gets you nowhere.

Tax follows the gain, wherever the money sits

A common thought: leave it in and you will not pay tax on it. That does not hold. For most CFD accounts in the UK and Ireland, what counts is the gain on closed trades and how your trading is classified. Profit left in the account is still profit.

Which rules apply depends on the account type and how actively you trade. We cover the main scenarios in forex tax in the UK and Ireland for 2026. This is not tax advice, and if in doubt, one session with an adviser is money well spent. Either way, let risk decide your withdrawal rule. Tax barely changes the picture.

Withdraw profits or compound: which rule should you pick?

One you write down in advance and then stop debating. The exact shape matters less than committing to it. These are the building blocks that hold up in practice:

• A fixed day, say the first working day of the month. Not whenever it feels right.
• A fixed share of last month's net profit, for example half.
• Losing month? Then you take nothing out, and you do not top up to fill the hole either.
• Your deposit out once the account has doubled. At a hypothetical 3% a month with everything left in, that takes 24 months, so treat it as a later goal.

With an active bonus, factor in at every step that a withdrawal also costs credit, and put that in your plan up front. Then you know what you are giving up the moment you press the button.

What would we do on an account of a few thousand? Take half of every winning month, on the same day, and write that down before the first profit lands. You keep part of the growth. The rest is safe. And you never have to decide after a good or bad week, because you already decided.

Here is what that looks like in real life. Your account is at €1,600 and last month made €80 net. On the first working day you request €40, without checking how the week started. If it was a losing month, nothing happens that day. Set a calendar reminder and treat it like a standing order. The more boring the process, the better it works.

With us, the bot runs on your own account, in your own name, with your own password. You withdraw yourself, whenever you want. We take a 30% commission on profit and nothing on losses. So an account that survives a drawdown is worth more to us too than one that grows fastest on paper.