Self Assessment Tax Calculator • UK Tax Estimate • Tax Accountant Coventry
Self Assessment Tax Calculator
Use this Self Assessment Tax Calculator to estimate UK Income Tax on employment income, self-employment profits, rental profits, pension income, P11D benefits, savings interest and dividends for the last five tax years.
This calculator is designed as a guide for England, Wales and Northern Ireland. It does not calculate Scottish income tax, National Insurance, student loans, High Income Child Benefit Charge, Capital Gains Tax, penalties or interest.
Calculate your Self Assessment tax
Self Assessment Tax Calculator
Enter your income and tax already paid. Leave fields blank if they do not apply.
How this calculator works
What this Self Assessment calculator estimates
This calculator adds together the main types of income normally seen on a Self Assessment tax return and estimates the Income Tax due for the selected tax year.
It applies the Personal Allowance, the Personal Allowance taper above £100,000, basic rate, higher rate, additional rate, savings allowances and dividend allowance. Pension contributions and Gift Aid are treated as extending the basic and higher rate bands.
This calculator does not include
- National Insurance contributions.
- Student loan repayments.
- High Income Child Benefit Charge.
- Capital Gains Tax.
- Marriage Allowance transfer.
- Foreign tax credit relief.
- Scottish income tax rates.
- HMRC penalties, interest or surcharges.
When to ask for help
Ask us to check before you file
Self Assessment can become complex where there are several income sources, benefits, rental income, dividends, savings interest or payments on account.
You have rental income
Property finance costs, repairs, joint ownership and losses can change the tax result.
You are self-employed
Business expenses, basis periods, losses and payments on account may need review.
You have dividends
Dividend tax depends on your total income and which tax bands the dividends fall into.
You have P11D benefits
Company cars, medical insurance and other benefits can affect your final tax calculation.
You have savings interest
The Personal Savings Allowance and starting rate for savings depend on your income level.
HMRC calculation looks wrong
We can review the SA302, tax year overview or HMRC calculation before you pay.
Need Self Assessment help?
We can prepare, review or correct your tax return
If you are unsure about the result, contact us before filing. We can review the figures, prepare the tax return, check HMRC calculations or explain why a balance is due.
Useful if you need help with
- Self Assessment tax returns.
- Rental property income.
- Self-employment profits.
- Dividends and savings interest.
- P11D and taxable benefits.
- Payments on account.
