Where the income comes from
Which pot you draw from changes what you keep.
Retirement income rarely comes from one place. It is usually assembled from several — a pension or two, ISAs, savings, sometimes a rental property or a share of a business, and the state pension, which starts on a date the rules set rather than one you choose. Where a final-salary pension is part of the picture it already pays an income, and the plan is built around it rather than over it.
Because each of those is taxed differently, the order you draw them in changes how much of your own money you keep. Taking the tax-free cash a pension allows, deciding how much taxable income to take in a given year, using an ISA to top up without adding to that income, and where you are a couple, using both sets of allowances rather than one — these are the levers, and the right combination is specific enough to your circumstances that any rule of thumb would be worth ignoring.
It also matters what is left behind. Pensions and ISAs pass on under different rules from each other, so the account you spend first and the account you preserve are decisions about your estate as much as about your income. We plan the two together rather than in sequence.
Tax treatment depends on your individual circumstances and may change in future, and the Financial Conduct Authority does not regulate tax advice.