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Retirement Calculator
Project your retirement pot, estimate income, and check if you are on track.
Two-Phase Planning
Accumulation growth then drawdown modelling
Shortfall Analysis
Are you saving enough? See the gap instantly.
Income Projection
Estimated retirement income from your pot
Plan Your Retirement
Enter your details to see if you are on track for a comfortable retirement.
How Retirement Planning Works
Accumulation Phase
FV = PV(1+r)^n + PMT x ((1+r)^n - 1) / r
Your existing savings grow with compound interest while monthly contributions add to the pot. The longer you have until retirement, the more compounding works in your favour. Even small increases in monthly contributions compound significantly over decades.
Decumulation Phase
Pot(t+1) = Pot(t) x (1+r) - Withdrawal
After retirement, your pot continues to earn returns while you withdraw income. The post-retirement return rate is typically lower as you shift to less volatile investments. The calculator shows how many years your pot will sustain your desired income.
UK Retirement Benchmarks
Retirement Living Standards
The PLSA benchmarks for a single person: Minimum £14,400/yr, Moderate £31,300/yr, Comfortable £43,100/yr. These assume a full state pension and no housing costs. Your actual needs depend on lifestyle, location, health, and whether your mortgage is paid off.
Pension Tax Relief
UK pension contributions receive tax relief at your marginal rate. Basic rate taxpayers get 20% relief automatically, meaning £80 net becomes £100 in your pension. Higher rate taxpayers can claim an additional 20% via self-assessment. The annual allowance is £60,000 (2025/26).
How to Use This Retirement Calculator
Enter Your Details
Current age, retirement age, savings, and monthly contributions.
Set Return Rates
Growth rates before and after retirement (use real rates to account for inflation).
Review Your Plan
See if you are on track or need to increase contributions.
Key Retirement Planning Concepts
- Accumulation vs Decumulation. Accumulation is the saving and investing phase before retirement. Decumulation is the withdrawal phase. Different strategies apply: higher growth during accumulation, capital preservation during decumulation.
- Sequence of Returns Risk. Poor investment returns in the early years of retirement can permanently damage your pot, even if average returns are fine. This is why post-retirement portfolios are typically more conservative.
- Longevity Risk. The risk of outliving your savings. A 65-year-old in the UK has roughly a 1 in 4 chance of living to 94. Planning to age 90 or beyond provides a safety margin.
- State Pension Integration. The full new State Pension is £11,502/year (2025/26). Factor this into your desired income — your private pot only needs to cover the gap above the state pension.
Want deeper insights?
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