Estimate your Self Assessment tax bill

Use the Self Assessment tax calculator to estimate your Self Assessment tax bill for the 2025 to 2026 tax year.

This service is also available in Welsh (Cymraeg).

Enter your estimated weekly or monthly income to get an idea of how much Income Tax and Class 4 National Insurance (if you바카라 사이트檙e self-employed) you바카라 사이트檒l pay.

The estimate you get will be calculated as if you get the standard Personal Allowance.

To get an estimate, you바카라 사이트檒l need to provide details of any:

• profits from self-employment
• rental income from property聽
• income from a State Pension or occupational pension
• income from paid employment

The calculator will not take into account:

• the High Income Child Benefit Charge
• any income from savings and investments
• any other payments you바카라 사이트檝e made, such as payments towards your next tax bill or any tax and National Insurance from paid employment