Free Self Assessment Form

Enter your income and expenses for the tax year and watch your tax bill calculate itself as you type — Income Tax, Class 4 National Insurance and payments on account, to the pound. Send it to us when you are done and an accountant will check it free. Nothing is filed with HMRC until you say so.

Your Details

Step 1 of 5

Start here — who you are and which year we are filing

We only need enough to identify you at HMRC. Your UTR and National Insurance number speed things up but you can leave them blank and we will chase them later.

The tax year is already set to the one that is due now
A UK tax year runs 6 April to 5 April, not January to December
Pick 'Not sure' and we will work out which year you need

Your details

First name *

Middle name

Last name *

Date of birth *

Email *

Phone

Choose your country, then enter your number or paste an international number.

Tax year *

Due by 31 January 2027 — the return most people are filing now.

Unique Taxpayer Reference (UTR)

National Insurance number

Student loan

Home address

We use this to match your return and contact details with HMRC.

Postcode *

Add your first and last name, date of birth, email, tax year and home address to continue.

Your Summary

Business income£0.00

Business expenses£0.00

Other income£0.00

Estimated total income

£0.00

Your estimated tax bill

£0

Fill in your income to see what you owe

Income Tax£0

Class 4 NIC£0

Due 31 January 2027£0

Estimated on published 2025/26 rates for a UK taxpayer outside Scotland, and excluding Capital Gains Tax and the High Income Child Benefit Charge. Your accountant will confirm the final figure — it is usually lower once every relief is claimed.