How Long Will My Lottery Money Last?

It depends on the size of the win, what you spend at the start, your yearly lifestyle cost, inflation and what happens to the money that remains. A large win can last for life, but high recurring spending can shorten that runway much faster than people expect.

For some people, yes; for others, no. Age, housing costs, whether you stop working, how much you spend each year and whether part of the money is invested all matter.

It can support a very comfortable life if spending is controlled, but buying an expensive home, stopping work early and running a high-cost lifestyle can still put pressure on the money over several decades.

For many households, £10 million creates a large margin for error, but it is not unlimited. The more useful question is what the lifestyle costs each year after the first big purchases.

Include things that happen mainly at the start: a house, renovations, cars, debt repayment, large family gifts, security work and setup costs.

Include costs that repeat: housing, cars, travel, food, family support, staff, hobbies, school fees, subscriptions and normal everyday spending.

Because a lifestyle that costs £10,000 a month today is unlikely to cost exactly the same in 10 or 20 years. Inflation makes long-term spending more realistic.

Money that remains invested may grow over time, although returns are never guaranteed. The growth field lets you compare different assumptions rather than treating the remaining pot as cash that simply runs down.

There is no correct number. Use several scenarios rather than one optimistic assumption. The calculator is a planning tool, not an investment forecast.

No. The result is simplified. Real returns can be reduced by fees, taxes and other costs, depending on the investments and your circumstances.

Yes. The ongoing lifestyle cost is increased by the inflation rate you choose, so later years become more expensive than the first.

It means the money was still positive after the calculator's 100-year modelling limit. It does not mean the result is guaranteed or that a portfolio could literally be left unchanged for a century.

Because monthly spending repeats every year and then rises with inflation. An extra £3,000 a month can become a very large amount over 20 or 30 years.

Yes. If you expect to buy or renovate a property, include the amount as one-off spending so the calculator starts with the money that would actually remain.

Yes. Put large one-off gifts into the early-spending field. If you expect to support family every month or every year, include that in ongoing spending instead.

Yes. It usually happens through a combination of high ongoing spending, repeated large purchases, poor investments, fees and commitments that become difficult to reduce.

The Lottery Spending Calculator focuses on the lifestyle itself and uses a simple no-growth model. This calculator adds time, inflation and an investment-growth assumption to estimate how long the remaining money could last.

The Lottery Win Planner is useful for building the whole plan, while Investing & Wealth and the Lottery Finance guide cover banking, advisers, investing and longer-term money decisions.