This one-screen calculator has more room on a laptop or tablet. On a phone, the planner is built for this screen, and it shares your numbers.

Pension drawdown calculator

See how long your pension could last and the tax you'll pay, tested across 1,000 simulated market futures. Free, private, UK 2026/27 rules.How long your pension lasts and the tax you'll pay, across 1,000 market futures. How it works.

New here? The planner asks six questions and builds this for you. Open the planner →

The calculator

Every input on one screen: pots, markets, tax bands, State Pension, fine-tuning. The planner and this form share one plan; anything you enter in either place carries over.

Your figures never leave your browser. No login, nothing saved on our servers.

Prefer a few questions? Open the planner →

Retirement strategy

Six short steps. Work through them in order, or jump to the one you want to change.

Personal Details

Married/Civil Partnership

Your name (optional)

Your Date of Birth

Current age: 61

Pension Start Date

Model the part-year to 5 April. The first year runs from the start date to the end of that tax year, scaled to its months, and later years are full tax years. Salary earned since the previous April sits under the plan's withdrawals, so they are taxed on top of it.

Target Age (How long should the pot last?)

Age you want your pension pot to last until (default: 95)

Leave at least this much at that age (£, today's money, optional)

Leave at 0 to spend it all ("die with zero"). Set it to see, beside works-in, how many of 100 futures end the target age with at least this much left across pensions, ISAs and savings. It does not change how the plan spends.

Use the same futures every time

Turn this on before comparing two versions of a plan. The same run of market returns and inflation is used on every Calculate, so any difference you see is the setting you changed and nothing else. Turn it off for a fresh set of futures each time, which is what you want when you are reading the odds rather than comparing two options.

This does not mean one flat rate a year. Returns and inflation still vary from year to year, they just vary the same way each time. If you want a single unchanging rate, set Growth Type and Inflation Type to "fixed" in the assumptions below.

Annual Income Required (Before Tax)

This is my take-home target (the simulator grosses up for tax each year)

Step 1 of 6

Tax Calculation

Tax is automatically calculated using UK tax bands. You can customize the bands in the Tax tab for different tax years or scenarios.

Ready for Advanced Analysis

Enter your pension details and click calculate to see comprehensive projections with Monte Carlo simulation and risk analysis.

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Not financial advice. This calculator provides estimates for planning purposes only. Pension regulations and tax rates may change, and actual performance may vary significantly from projections. Always consult a qualified financial adviser before making decisions about your pension withdrawals. Past performance does not guarantee future results.