TaxReadySheets

Free UK tax calculators for 2026/27

Fourteen quick tools for the self-employed, grouped by the kind of work you do. All of them are free, run entirely in your browser and use the same checked 2026/27 rates.

For every sole trader

Self-employed tax & take-home calculator

Income tax, Class 4 NI, take-home pay and how much to put aside each month.

Making Tax Digital checker

Find out if and when MTD for Income Tax applies to you: 2026, 2027 or 2028.

Universal Credit self-employed reporting dates

Your next assessment periods and the window to report earnings for each.

Construction & trades

CIS tax refund estimator

Estimate the refund (or bill) after CIS deductions, materials and expenses.

Beauty, cleaning & pet care

Hair & beauty price-per-service calculator

Price each treatment to cover products, overheads and a fair hourly wage.

Cleaning job price calculator

Quote a clean that covers wages, supplies, travel and profit.

Dog walking & pet sitting price calculator

Set a per-dog walk price or pet-sitting visit rate that actually pays.

Childcare & tutoring

Childminder take-home calculator

Fees, funded hours and use-of-home costs turned into real take-home pay.

Private tutor hourly rate calculator

Work back from the income you want to the hourly rate you need to charge.

Driving & delivery

Taxi, private hire & delivery driver tax calculator

Mileage rates vs actual vehicle costs: see which saves more tax.

HMRC mileage claim calculator

45p/25p for cars and vans, 24p motorbikes, 20p bikes — your claim in seconds.

Selling online

Vinted, eBay & Depop HMRC checker

Decluttering or trading? Platform reporting, the £1,000 allowance and what to do next.

Property & hosting

Landlord rental profit tax calculator

Tax on rent for 2026/27 vs the new 2027/28 property rates, plus an MTD check.

Airbnb, holiday let & Rent a Room calculator

Rent a Room vs the £1,000 property allowance vs actual expenses — best option highlighted.