All Tools
Free tax calculators and business tools for UK freelancers. No signup required.
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Take-Home Pay Calculator
Compare your take-home pay as a sole trader vs limited company. See exactly what you keep after tax, NICs, and dividends.
Use this tool →Day Rate Calculator
Work out the day rate you need to charge to match a permanent salary — accounting for holidays, sick days, pension, and tax.
Use this tool →IR35 Status Checker
Assess your IR35 status with a clear, guided questionnaire based on HMRC criteria.
Use this tool →VAT Registration Checker
Track your turnover against the VAT threshold and model the impact of voluntary registration.
Use this tool →Quarterly Tax Estimator
Estimate your quarterly payments on account so you're never caught short by HMRC.
Use this tool →Dividend vs Salary Optimiser
Find the optimal salary/dividend split for limited company directors to minimise tax.
Use this tool →Freelancer Pension Calculator
See how much you need to save for retirement when there's no employer contribution.
Use this tool →Business Expense Checker
Find out which expenses you can claim as a freelancer — with HMRC-compliant explanations.
Use this tool →Mortgage Calculator for Self-Employed
Find out how much you can borrow as a freelancer. Stress test, borrowing capacity, and tips for self-employed applicants.
Use this tool →Mileage Allowance Calculator
Calculate your HMRC mileage claim and compare simplified rates vs actual vehicle costs.
Use this tool →Working From Home Allowance
Calculate your WFH tax relief. Compare HMRC simplified flat rates vs actual costs for sole traders, directors, and employees.
Use this tool →UK Invoice Generator
Create professional, legally-compliant UK invoices and download as PDF. No signup — your details save locally.
Use this tool →