Freelance calculator

Freelancer Tax Calculator

Freelancers often undercharge because they forget tax is paid from revenue before personal spending. Use this tool to build a tax-aware pricing model so you never get caught short at tax time.

How to use this tool

Enter your desired annual income, monthly business expenses, tax percentage, billable hours per week, vacation weeks and profit margin. Your rates update instantly with every change โ€” no submit button needed.

Once you have your baseline rate, compare it against the wider market. Your calculated rate protects your income and business costs โ€” the market tells you how to position and package it.

Pricing tips

  • โœ“Never base your rate only on employee salary maths.
  • โœ“Include admin, sales, marketing and quiet weeks in planning.
  • โœ“For fixed projects, add a scope buffer and define revision limits.
  • โœ“Review prices every few months as demand and expenses change.
  • โœ“A higher rate with fewer clients is often healthier than a low rate with many.

Key pricing formula

Annual income + Annual expenses
รท (1 โˆ’ tax rate)
ร— (1 + profit margin)
รท Annual billable hours
= Your hourly rate

Related Tools

How Much Tax Do UK Freelancers Pay?

UK freelancers pay Income Tax plus Class 4 National Insurance on their profits above the personal allowance (ยฃ12,570 for 2025/26). The combined effective rate depends on your profit level โ€” most freelancers earning ยฃ30,000โ€“ยฃ60,000 have an effective combined rate of 25โ€“35%. Use the calculator above to estimate your specific liability.

Annual ProfitIncome TaxClass 4 NITotal Rate (approx)
ยฃ15,000ยฃ486~ยฃ216~5%
ยฃ30,000ยฃ3,486~ยฃ1,566~17%
ยฃ50,000ยฃ7,486~ยฃ3,366~22%
ยฃ80,000ยฃ19,432~ยฃ3,966~29%

Figures approximate. Source: HMRC 2025/26 rates. Does not include Class 2 NI (ยฃ3.45/week if profits above ยฃ12,570).

How much should I set aside for tax?

As a rule of thumb: set aside 25โ€“30% of every invoice if you earn under ยฃ50,000/year. Set aside 35โ€“45% if you earn over ยฃ50,000. Transfer it to a separate savings account immediately โ€” never keep it in your current account where it blends with available cash.

Tax Calculator FAQs

What is the self-employed tax rate in the UK 2025/26? +
UK self-employed people pay 0% on profits up to ยฃ12,570 (personal allowance), 20% on profits from ยฃ12,571โ€“ยฃ50,270, 40% from ยฃ50,271โ€“ยฃ125,140, and 45% above that. They also pay Class 4 NI at 9% (up to ยฃ50,270) and 2% above. The effective combined rate for most freelancers is 25โ€“35%.
How do I calculate how much tax I owe as self-employed? +
Calculate your profit (revenue minus allowable expenses). Subtract the personal allowance (ยฃ12,570). Apply the income tax bands to the remaining profit. Add Class 4 NI (9% on profits ยฃ12,570โ€“ยฃ50,270, 2% above). Add Class 2 NI (ยฃ3.45/week if applicable). This calculator estimates the combined liability automatically.
When do I pay my self-assessment tax bill? +
The main payment deadline is 31 January following the end of the tax year. For the 2025/26 tax year (ending 5 April 2026), your tax is due by 31 January 2027. If your bill exceeds ยฃ1,000, you also make payments on account: 50% by 31 January and 50% by 31 July.
What expenses reduce my tax bill? +
Any expense wholly and exclusively for business purposes: office costs, equipment, travel, professional fees, accountancy, software, marketing and pension contributions. Your taxable profit is income minus these deductions โ€” so every legitimate expense directly reduces your tax bill.
Do I pay National Insurance as well as income tax? +
Yes. Self-employed people pay Class 4 NI (9% up to ยฃ50,270, 2% above) on profits above ยฃ12,570, plus Class 2 NI (ยฃ3.45/week flat rate). Both are paid through Self Assessment alongside income tax. This calculator's tax rate input should include your expected NI for an accurate picture.

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