What is the best thing to do with £500,000 inheritance UK?

Spread cash across multiple FSCS providers and NS&I, fully use ISAs and pensions, consider mortgage clearance, build a diversified portfolio, and engage an FCA-regulated adviser. At this level, sequencing and tax planning matter as much as the products.

Will I pay tax on a £500k inheritance?

The estate normally pays Inheritance Tax. Above the £325k nil-rate band (or up to £500k with the residence nil-rate band), the standard 40% rate applies. As a beneficiary, you don't pay IHT directly, but Income Tax, CGT and Dividend Tax apply afterwards.

Should I retire early with a £500k inheritance?

Possibly — depending on age, lifestyle costs, and existing pension provision. £500k changes the maths significantly. A cashflow plan with an FCA-regulated adviser is the standard way to test this safely.

How long does £500,000 last in retirement?

Highly dependent on age, lifestyle and investment returns. A common rule of thumb is 4% sustainable withdrawal — about £20,000/year — adjusted for inflation. A cashflow model is the only reliable answer.

What To Do With £500k Inheritance UK

Reviewed for accuracy and UK relevance by the Inheritance Money Advice editorial team· Last reviewed May 2026

Quick answer

How should you allocate a £500k inheritance UK?

1
Spread cash across FSCS-protected providers and NS&I within the first weeks.
2
Hold 6–12 months of essential expenses as accessible cash.
3
Use this year's £20,000 ISA and plan future years.
4
Maximise pension contributions using annual allowance and carry-forward.
5
Consider mortgage clearance — check Early Repayment Charges.
6
Invest the long-term remainder, often £200–300k, in a diversified portfolio.
7
Engage an FCA-regulated adviser for tax sequencing and cashflow planning.

A typical £500k allocation

£40,000 emergency cash and 12-month buffer
£20,000 Stocks & Shares ISA (this tax year)
£120,000 pension contribution (annual allowance + carry-forward where eligible)
£100,000 mortgage clearance or substantial reduction
£200,000 long-term diversified portfolio (GIA + future ISAs)
£20,000 family gifting using exemptions and the 7-year rule

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Cash protection at this level

At £500k, naive deposit choices leave large amounts uninsured. Combine NS&I (no upper limit) with FSCS-spread savings via banking groups or platforms — see best low-risk options.

Pension contributions and carry-forward

The annual allowance is currently £60,000, with carry-forward from the previous 3 tax years (subject to relevant UK earnings). For higher earners, this often unlocks £150k+ of efficient contributions.

Inheritance Tax planning for your own estate

£500k significantly changes your future estate position. Consider gifting strategy and reliefs — see how to reduce IHT legally.

Why an adviser is usually essential here

At this level, the cost of mistakes is real and the gains from sequencing are large. A one-off cashflow plan or ongoing advice routinely pays for itself many times over.

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Where to read next

See £250k guide, £100k guide, or the full complete guide.

Published January 2025 · Last reviewed May 2026

What To Do With A £500k Inheritance UK