UK Tax Calculators 2025/26.

Sole Trader Tax

Calculate exactly how much income tax and Class 4 NI you owe as a self-employed sole trader, including take-home pay.

Multiple Income

Combined tax calculation for employment, self-employment, rental, and dividends. One personal allowance across all sources.

Stamp Duty

Estimate SDLT instantly for standard buyers, first-time buyers, and additional properties.

All calculators

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Tax Code Checker

Is HMRC taxing you correctly? 5.6M UK workers overpay. Check your PAYE code free in 60 seconds.

MTD Requirement Checker

Do you need Making Tax Digital? Enter your income to see if and when MTD for Income Tax applies - April 2026, 2027 or 2028.

Sole Trader Tax

Income tax, Class 4 NI, and take-home pay for self-employed sole traders.

Multiple Income

Combined tax calculation for employment, self-employment, rental, and dividends.

Salary / PAYE

Calculate your take-home pay after income tax, NI, and student loan deductions.

Mileage Allowance

Calculate your HMRC mileage claim and the tax saving it gives you.

Rental Income

Rental profit tax with mortgage interest credit and property allowance.

Capital Gains Tax

CGT on property, shares, and business assets with annual exemption applied.

Savings Interest

Tax on savings interest with Personal Savings Allowance and starting rate.

Dividend Tax

Tax on dividend income including the 2026 rate change warning.

VAT Calculator

Compare standard vs flat rate schemes and check registration threshold.

Ltd vs Sole Trader

Side-by-side comparison of total tax as a limited company vs sole trader.

CIS (Construction)

CIS deduction calculator with refund estimates for subcontractors.

Pension Planner

See exactly how much tax you save by increasing pension contributions.

Quarterly Payment Planner

See your exact January 31 tax bill and how much to save each month.

Student Loan Repayment

Estimate your annual and monthly student loan repayments by plan type.

Child Benefit Charge

Check how much of your Child Benefit you may lose to the High Income Charge.

Stamp Duty

Estimate SDLT for standard, first-time, and additional property buyers.

Corporation Tax

Estimate limited company corporation tax with marginal relief.

IR35

Compare inside vs outside IR35 take-home for contractors.

Late Filing Penalty

Estimate late filing penalties, late payment penalties, and interest.

Dividend vs Salary

Model director salary and dividend extraction to optimise take-home.