What is the Pension Carry Forward & Annual Allowance Calculator?
The Pension Carry Forward & Annual Allowance Calculator helps you understand how much you can contribute to your pension today by combining your annual allowance with any unused allowances from the previous three tax years. It shows your total available allowance, potential tax relief and how different contribution levels could grow your pension over time.
How the Calculator Works?
You enter your income, current year’s pension contributions and any contributions made in the previous three tax years. The calculator checks your annual allowance, applies tapering rules where relevant and then works out how much unused allowance you can carry forward. You can then test contribution amounts to see the immediate tax relief available and how your pot may grow over time with a chosen investment return.
Step One: Enter Your Income and Pension History
Add your current income, this year’s contributions and amounts you contributed in each of the last three tax years. This determines both your annual allowance and available carry forward.
Step Two: Review Your Total Allowance and Tax Relief
The calculator totals your current annual allowance plus any unused allowances from previous years. It then shows how much tax relief you could claim based on your income band.
Step Three: Compare Contribution Scenarios Over Time
Test different contribution amounts and see how they change the value of your pension over time using a fixed growth assumption. Adjust contributions to find a level that aligns with your long-term goals.
Disclaimer: This calculator provides illustrative guidance only and should not be taken as financial or tax advice. Pension rules, allowances and tax bands can change. Speak with a qualified adviser before making large pension contributions.
What does retirement mean to you?
Traditional retirement is broken. Understand how our calculator enables you to live a better life now vs later.
Retire from corporate work?
Use the tool to utilise how you can step away from the corporate world and live life on your own terms.
Work less, live more
See how part-time or project-based work can bridge your income gap while giving you more time for life.
Freedom through planning
Understand how your savings, spending and investments can work together to buy back your time.
Test-drive retirement early
Model scenarios that let you experience elements of retirement before fully stepping away.
What is the Pension Carry Forward & Annual Allowance Calculator?
It is a UK pension-planning tool that calculates your total available pension allowance using current and previous tax years, including tapered rules and tax relief, and shows how different contribution strategies affect future pot growth.
What is pension carry forward?
Carry forward allows you to use any unused pension annual allowance from the last three tax years, provided you were a member of a UK pension scheme during those years.
How does the calculator work out my available allowance?
It checks the current year’s allowance, applies tapering where applicable and then adds any unused allowance from the previous three tax years to calculate your total available contribution.
Does this include tax relief?
Yes. The calculator shows the tax relief available based on your income and the size of your pension contribution.
What income do I need to enter?
Enter your total taxable income for the current tax year. This determines whether the tapered annual allowance applies.
Does this calculator factor in employer contributions?
Yes. You should include employer and employee contributions when entering historic and current inputs, as all contributions count toward your limit.
Can I exceed my adjusted income allowance?
If your income triggers the tapered annual allowance, your tax-efficient allowance may be significantly lower. The calculator highlights this and adjusts your available allowance accordingly.
How accurate are the growth projections?
They are illustrations based on your chosen rate of growth. Actual investment returns will vary.
Which year’s unused allowance is used first?
You normally use the current tax year’s allowance first, then available unused allowance from the previous three tax years, starting with the oldest. That ordering matters because the oldest year expires first. Keep contribution and allowance records by tax year rather than one rolling total.
Did I need a pension in the earlier years?
To carry forward unused annual allowance from an earlier tax year, you generally needed to be a member of a UK-registered pension scheme in that year. You did not necessarily need to contribute. Confirm scheme membership and dates before counting an old allowance that looks available on paper.
Does carry forward let me receive unlimited tax relief?
No. Carry forward can increase the annual allowance available for pension saving, but tax relief on personal contributions is usually limited by relevant UK earnings and the contribution rules. Employer contributions are treated differently. The annual allowance and tax-relief limit are separate tests, so passing one does not mean you pass the other.
Can I carry forward the Money Purchase Annual Allowance?
No. Once the MPAA applies, unused MPAA cannot be carried forward to support extra defined contribution saving. Carry forward may still be relevant to the alternative annual allowance for other pension input, depending on the circumstances. If flexible benefits have been accessed, use the specific MPAA calculation rather than the standard one.
Is my information stored?
No. All calculations run locally in your browser and are not saved or transmitted.
Trust and education
Certified Money First Aider®
These calculators are built by a Certified Money First Aider to help you think more clearly about money and time. Money First Aid® is about practical, non-judgemental support for financial wellbeing. The calculators can certainly help you make informed decisions, but they are not regulated financial advice.
Behind Retirement Calculators
Built from the questions I was asking myself
I'm Ryan, the person behind Retirement Calculators. I started the site after selling an online business and trying to understand what our pensions, ISAs, investments and property actually meant for the way we wanted to live.
The calculators are built around those real decisions: whether you could work less, retire earlier, spend more now or use your money differently. They will not give you a perfect answer, but they can make the trade-offs much easier to see.
Have an idea for a calculator, spotted something that could be clearer, or want to ask me about the site?
Let me help you navigate the road to retirement
Free. Unsubscribe any time.
Thanks. You are on the list.