Worked example
Can I retire at 28 with £100k?
On its own, £100k split as a pension plus a smaller ISA doesn't stretch far enough to retire at 28: even on £15k a year the accessible savings run dry around age 29, before the pension can be drawn at 55. You'd need a bigger bridging pot, a later date, or more guaranteed income.
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The example we modelled
A single person retiring at 28 today with a £100k pot, split so the pension is the bulk of the money. All figures are in today’s money (real terms).
The result at £15k a year
Even the lowest spending level we tested runs short — here is what that looks like.
How far £100k stretches at different spending levels
The same pot, retiring at 28, tested from £15k to £60k of annual spending.
| Annual spending | Verdict | Money lasts | Left at 95 |
|---|---|---|---|
| £15,000 | Run-out | Runs out at 29 | £929,390 |
| £20,000 | Run-out | Runs out at 29 | £130,391 |
| £30,000 | Run-out | Runs out at 66 | £0 |
| £40,000 | Run-out | Runs out at 62 | £0 |
| £50,000 | Run-out | Runs out at 60 | £0 |
| £60,000 | Run-out | Runs out at 59 | £0 |
Year-by-year projection at £15k a year
Projected balances every five years, in today’s money. Spending includes your State Pension once it starts at 67, so the amount drawn from your savings drops from then on.
| Age | Spending | State Pension | Drawn from savings | Pot value |
|---|---|---|---|---|
| 28 | £15,000 | £0 | £15,000 | £90,000 |
| 33 | £15,000 | £0 | £0 | £107,208 |
| 38 | £15,000 | £0 | £0 | £136,827 |
| 43 | £15,000 | £0 | £0 | £174,630 |
| 48 | £15,000 | £0 | £0 | £222,877 |
| 53 | £15,000 | £0 | £0 | £284,454 |
| 58 | £15,000 | £0 | £15,608 | £295,773 |
| 63 | £15,000 | £0 | £15,608 | £291,248 |
| 68 | £15,000 | £11,502 | £4,106 | £309,053 |
| 73 | £15,000 | £11,502 | £4,106 | £371,753 |
| 78 | £15,000 | £11,502 | £4,106 | £451,775 |
| 83 | £15,000 | £11,502 | £4,106 | £553,907 |
| 88 | £15,000 | £11,502 | £4,106 | £684,256 |
| 93 | £15,000 | £11,502 | £4,106 | £850,618 |
| 95 | £15,000 | £11,502 | £4,106 | £929,390 |
Illustrative only, using fixed assumptions. Investment returns are not guaranteed and your own tax, income and circumstances will differ. Not regulated financial advice.
Try it with your own numbers
LiveThis runs the real planner engine right here in your browser. Change your pots and monthly saving and watch the answer for retiring at 28 update instantly.
You're short at age 30 — before you can access your pension
Projected pot (today's money)
Retiring at 28 with a different pot
Retiring with £100k at a different age
Frequently asked questions
Can I retire at 28 with £100k?
On its own, £100k split as a pension plus a smaller ISA doesn't stretch far enough to retire at 28: even on £15k a year the accessible savings run dry around age 29, before the pension can be drawn at 55. You'd need a bigger bridging pot, a later date, or more guaranteed income. These figures assume £100k split as £80k in a pension and £20k in an ISA, £11,502 of State Pension from age 67, and around 5% investment growth a year above inflation.
How much can I spend a year if I retire at 28 with £100k?
Even £15k a year runs short before age 95 on these assumptions. The table shows exactly when the money runs out at each spending level — you'd need lower spending, more income, or a later retirement date to close the gap.
Can I access my pension at 28?
Not yet. The earliest you can normally take a private or workplace pension is age 55 (rising to 57 in April 2028). Retiring at 28 means bridging the 27 years until then from ISAs and other savings — which is why the ISA slice of the pot matters so much at this age.
Are these numbers financial advice?
No. This is an illustrative worked example from a free planning tool, using fixed assumptions about growth, inflation, tax and the State Pension. Your own situation — other pensions, a partner, different returns — will change the answer. Open the planner to run it with your real figures.