HENRY Knowledge · 13 September 2026
Can I retire before 57? How to plan an ISA bridge
A large pension does not fund the years before you can access it. An early-retirement plan needs a separate pool of accessible money for that gap.
The direct answer
You can stop work before pension access if cash, ISAs and other accessible investments can support your spending until pension money becomes available—and if the later pension plan remains sustainable. This temporary pool is often called a retirement bridge or ISA bridge.
For most registered-pension savers, the normal minimum pension age is currently 55 and is scheduled to rise to 57 from 6 April 2028. Protected pension ages, scheme rules, ill-health exceptions and some public-service schemes can differ. Confirm the access date with each provider rather than assuming it from your current age.
Calculate the gap before the growth
Start with four inputs:
- The age when you want work to become optional.
- The earliest date each pension can actually be accessed.
- Your expected annual spending during the gap, after allowing for tax and irregular costs.
- Accessible assets and contributions available by the target date.
If you stop at 52 and cannot access a pension until 57, the bridge lasts five years. A simple cash-only starting point would multiply annual spending by five. A model that assumes investment growth and monthly withdrawals may require less capital at the start, but that result is more uncertain and can be damaged by poor early returns.
A worked £60,000 spending example
Suppose work becomes optional at 52, pension access is at 57 and planned household spending is £60,000 a year. Ignoring growth, inflation and tax, five years of spending equals £300,000.
That is a useful sense-check, not a target to accept blindly. The actual bridge could be higher because of tax, fees, large one-off costs or weak returns. It could be lower if spending falls, part-time income continues or another dependable income source begins. HENRY's calculator models level monthly withdrawals using the real return you enter, then compares the result with accessible assets projected to the target date.
What can fund the bridge?
- Cash: stable and accessible, but exposed to inflation and savings-rate changes.
- Stocks and shares ISA: accessible and sheltered from UK tax on income and gains, but investments can fall—especially over a short bridge.
- Taxable investments: accessible, with tax and allowance consequences to model separately.
- Part-time or consulting income: can reduce withdrawals, but should not be treated as guaranteed unless the plan is realistic.
Do not count pension money in the bridge merely because it appears in your net worth. Do not count your home unless there is a specific, credible plan and timing for releasing equity.
ISA rules that affect the plan
In 2026/27, the overall ISA allowance is £20,000 per person. Interest, income and capital gains within an ISA are free of UK tax, and money can generally be withdrawn at any time subject to provider terms. GOV.UK explains the current ISA rules.
From 6 April 2027, the government says the Cash ISA limit for people under 65 will fall to £12,000 while the overall ISA limit remains £20,000. This does not reduce the stated Stocks and Shares ISA limit, but it may affect how future bridge contributions are split between cash and investments. The reform is described in the government's June 2026 ISA factsheet.
ISA access is not the same as guaranteed value. Match the investments to the bridge's timing and your capacity for loss.
Three risks a single projection can hide
- Sequence risk: poor returns near the start can force withdrawals after falls and shorten the bridge.
- Spending risk: tax, maintenance, travel, family support and healthcare can make a flat budget unrealistic.
- Access-date risk: pension legislation and scheme rules may differ from the age entered.
Stress-test lower real returns, higher spending and a pension-access date one or two years later. Keep emergency cash separate so an unexpected cost does not immediately disrupt the investment bridge.
For couples, model the household timeline
Partners may stop work or reach pension access at different ages. The first accessible pension may reduce the bridge requirement, but it may not fund the whole household. Record whose pension becomes available, the expected income it could provide and what remains inaccessible. A household plan should not silently combine two pension-access dates into one.