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Pension Tax Relief Calculator UK

Enter your values below to get the result first, then scroll for the full explanation and guidance.

Step 1 • Add values

Use the calculator

Enter your values below to generate an instant result. You can update the inputs at any time to compare different scenarios.

Example: a GBP 80 net relief-at-source payment receives a GBP 20 provider top-up and becomes a GBP 100 gross pension contribution.

Results refresh instantly as values change.

Provider's basic-rate top-up

£20.00Relief at source only

Provider's basic-rate top-up: £20.00 (Relief at source only)

For an eligible relief-at-source contribution, the provider adds 20% of the gross contribution to your net payment.

Contribution gross-up

For an eligible relief-at-source contribution, the provider adds 20% of the gross contribution to your net payment.

Result snapshot

A quick visual read of the values behind this result.

Your net contribution£80.00
Gross pension contribution£100.00

Recommended next checks

  • →Confirm your scheme uses relief at source and that you meet the tax-relief conditions. Additional higher-rate relief is not included.
Your net contribution
£80.00
Gross pension contribution
£100.00

Maximum entered net contribution is GBP 2,880, equivalent to GBP 3,600 gross. This is a provider top-up calculation, not an eligibility or annual-allowance assessment.

Try different values to compare results.

If your registered pension uses relief at source, enter the net amount you pay personally. The provider normally adds basic-rate tax relief, making GBP 80 paid by you into GBP 100 gross in the pension. This tool calculates the top-up, not your total tax relief entitlement.

Restricted scope stated

Applicable period shown

Excluded claim or payroll factors disclosed

Table of Contents

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About Pension Tax Relief Calculator UK

Pension Tax Relief Calculator UK helps you work through the main numbers for this topic quickly with a simple input flow and an instant result.

Use the calculator result as a practical starting point, then review the explanation and assumptions on the page if you want more context.

Relief-at-source provider top-up

The provider claims 20% of the gross contribution: gross equals your net payment divided by 0.8, and the provider top-up equals net payment divided by 4. The input is capped at GBP 2,880 net so that the illustrated gross contribution cannot exceed the GBP 3,600 minimum-relief level available to eligible members even without earnings. Check scheme method and other personal contributions before relying on the estimate.

Formula explained

Relief-at-source provider top-up

Calculate the basic-rate provider top-up on an eligible personal pension contribution under relief at source, up to GBP 2,880 net.

Formula

Gross contribution = net contribution / 0.8; provider top-up = net contribution / 4

How the result is built

1Confirm the scheme is registered and uses relief at source.
2Enter up to GBP 2,880 net personal contribution, assuming no other relief-claimed contributions this year.
3Divide by four to show the basic-rate provider top-up; eligibility and extra relief are not assessed.

Example

Example: a GBP 80 net relief-at-source payment receives a GBP 20 provider top-up and becomes a GBP 100 gross pension contribution.

Assumptions

  • UK resident aged under 75, contributing to a registered pension operating relief at source.
  • The entered amount is the only personal contribution claimed for relief this tax year; no other contributions use the GBP 3,600 gross minimum entitlement.
  • At most GBP 2,880 net is accepted, equating to GBP 3,600 gross, even if relevant earnings are nil.
  • Calculates only the provider's basic-rate top-up; higher-rate claims, net-pay arrangements, salary sacrifice, annual-allowance charges and contribution eligibility checks are excluded.

Source basis

  • HMRC: Pension tax relief and PTM044100

Trust and notes

Assumptions and important notes

This calculator is designed to give a fast estimate using the method shown on the page. Results are most useful when your inputs are accurate and the tool matches your situation.

Use the result as guidance rather than a final diagnosis or professional decision. If the result could affect health, legal, financial, or compliance decisions, verify it with a qualified source where appropriate.

  • UK resident aged under 75, contributing to a registered pension operating relief at source.
  • The entered amount is the only personal contribution claimed for relief this tax year; no other contributions use the GBP 3,600 gross minimum entitlement.
  • At most GBP 2,880 net is accepted, equating to GBP 3,600 gross, even if relevant earnings are nil.
  • Calculates only the provider's basic-rate top-up; higher-rate claims, net-pay arrangements, salary sacrifice, annual-allowance charges and contribution eligibility checks are excluded.

Method

Relief-at-source provider top-up

Last reviewed

October 13, 2026