Included in Ask Fin — £4.99/month

Tax Relief

Estimate how pension contributions could affect your tax position.

Tax can feel hard to untangle, especially when income, pension contributions, child benefit and investment gains all interact. Tax Relief helps you explore how further pension contributions may affect your estimated tax position for 2026/27.

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Guidance, not advice. Tax Relief estimates outcomes based on information entered. It does not replace tax advice, financial advice or pension advice. Tax rules can change. Always verify with HMRC or a qualified adviser before acting.

Tax decisions can affect more than one number

A pension contribution may affect more than your pension pot. Depending on your income and circumstances, it may also affect your estimated tax liability, personal allowance, High Income Child Benefit Charge and some chargeable gains from investment bonds.

When income sits in the £100,000 to £125,140 range, even a moderate pension contribution can restore personal allowance, creating an effective relief rate well above the headline tax rate. Understanding where you sit is a useful first step before speaking with an adviser.

What Tax Relief helps you explore

Estimated tax liability

See how the details you enter may affect an estimated income tax position for the 2026/27 tax year.

Personal allowance

Explore how adjusted net income above £100,000 may reduce your personal allowance, and how pension contributions could help restore it.

High Income Child Benefit Charge

If you claim Child Benefit and have income above £60,000, the tool estimates how pension contributions could reduce or eliminate the charge.

Chargeable gains

The tool can give an indication of how pension contributions may interact with certain chargeable gains, including top-slicing on investment bonds.

How it works

1

Enter your income

Add salary, self-employment, pension income, rental, dividends and savings interest.

2

Add existing contributions

Enter any pension contributions or Gift Aid already in place this year.

3

Model a further contribution

Enter a further gross pension contribution to see its estimated effect.

4

Review the comparison

See an estimated before-and-after view of your tax position, including any Child Benefit charge and personal allowance impact.

Important information

This tool estimates your tax liability based on the information you enter. The results should not be considered tax advice, financial advice or pension advice. They are designed to help you understand possible areas to discuss with a qualified adviser or to check directly with HMRC.

Results are based on current understanding of UK legislation and HMRC practice as at March 2026. These can change without notice. The tool does not consider every circumstance that could affect your tax position, and does not account for National Insurance.

Always verify figures with a qualified tax adviser, financial adviser or with HMRC before making any pension, tax or financial decisions.

Explore your tax position

Tax Relief is included with all 14 Ask Fin tools for £4.99/month.

Start for £4.99/month

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Common questions