Why a percentage works
Your final bill depends on your whole year and your other income, but putting a fixed share of every month's profit aside means the money is there when the bill comes. Anything left over is a bonus.
A tax bill is easy to pay when the money is already put away. See how much of your profit to set aside each month, using a rule of thumb for your country.
Worked out on profit. Basic-rate income tax (20%) and Class 4 National Insurance (6%). Set your own rate if you pay more.
Guide
Your final bill depends on your whole year and your other income, but putting a fixed share of every month's profit aside means the money is there when the bill comes. Anything left over is a bonus.
In most countries tax is worked out on profit: sales minus the cost of what you sold, fees, postage and expenses. Some simplified regimes (such as the French micro-entrepreneur or Italian forfettario) charge on turnover instead, and the calculator switches to sales for those.
The rate we suggest is a rule of thumb, not a calculation of your tax. If you also have a job, or earn more, your rate will be higher. Change it to match your own situation.
A common rule of thumb for basic-rate taxpayers is 20% to 30% of profit: 20% income tax plus 6% Class 4 National Insurance on profit above the personal allowance. Higher-rate taxpayers need more.
No. It is a saving target. Your real bill depends on allowances, your other income and the rules of your country. Use it to save, then pay the actual bill.
From profit in most countries. The calculator uses sales only where tax is charged on turnover.
In the UK, once your bill is over £1,000 you usually pay half of next year's bill in advance twice a year. Saving monthly keeps that from being a shock.
ProfitClerk keeps a live estimate of the tax to put aside from your real profit, and reminds you about every deadline in your country.
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