The most stressful part of freelancing isn't finding work. It's the tax bill you didn't plan for. Money lands in your account, it feels like yours, you spend it, and then a chunk of it turns out to belong to the tax office. The fix isn't complicated, but it does need a habit. So: how much should you actually set aside?
The honest answer is that there's no single magic percentage, because it depends on where you live, how much you earn and what you can deduct. Anyone who gives you one number for everyone is guessing. What you can do is pick a sensible rule of thumb for your situation, set aside a little too much rather than too little, and adjust once you actually know your numbers.
Rules of thumb, by situation
Treat these as starting points to keep you safe, not as tax advice. Your accountant, and your local rules, have the final word.
Just getting started, income still small. Setting aside somewhere in the region of a fifth to a quarter of what you bring in is a reasonable buffer while you learn what your real rate turns out to be. It's better to end the year with a little extra in the pot than to come up short.
Freelancing full-time as your main income. Once this is your living, a common range to hold back is roughly a quarter to a third, because you're often covering both income tax and any self-employment or social contributions on top. If your country charges those separately, they add up quickly, so lean toward the higher end until you've seen a full year.
Higher earner, or in a high-tax country. If you're earning well or you're somewhere with steep marginal rates, holding back a third or more is wise. The point of setting aside more isn't pessimism, it's that a refund feels great and a shortfall feels awful.
Charging VAT or sales tax. If you collect tax on top of your fees, that money was never yours to begin with. Keep it completely separate the moment it arrives, because you're just holding it until it's due.
The money you owe in tax was never really your income. Treat it that way from the day it lands.
The separate-pot habit
The single most effective thing a freelancer can do is stop keeping tax money in the same place as spending money. When it's all one balance, your brain counts it all as available, and it quietly gets spent. So give the tax money its own home.
Open a separate account, or at least a clearly separated pot, and treat it as untouchable. When a client pays you, move your set-aside percentage into it straight away, before you look at what's "left". What's left is your real income. The tax pot isn't yours, it's the tax office's money you're holding for a while.
A monthly ten-minute routine
You don't need a spreadsheet ritual. You need ten minutes, once a month.
Total up what you got paid this month. Add up the income that actually landed, not what you invoiced.
Move your percentage into the tax pot. Apply your rule of thumb and transfer it. Done.
Glance at the trend. If some months are fat and some are lean, the pot smooths it out, because you set aside from the good months to cover the bill regardless.
This is exactly the kind of monthly clarity a connected workspace makes easy. When your income and expenses live in one place with real reports, that "how much did I actually make this month" number is right there, instead of hiding across a bank app and three spreadsheets.
Tools that help
If you want a quick estimate without doing arithmetic in your head, there are free calculators for freelancers over at tools.worklyn.co. And an AI CFO that watches this for you and nudges you when your set-aside is drifting is coming soon to Worklyn. For now, the habit above will keep you safe on its own.
Set the percentage, give the money its own pot, move it the day you're paid. Do that, and tax season stops being a scramble and becomes a non-event.
Start free on Worklyn and keep your income and expenses in one clear place.