How much should I save a month?
A common rule of thumb is 20% of your take-home pay — but the right figure is the one you can actually keep up, worked back from what you’re saving for. Here’s how to land on a number.
The short answer
A widely used guideline is the 50/30/20 rule: 50% of take-home pay on needs, 30% on wants, and 20% on savings and debt repayment. On £2,500 take-home a month, that’s £500 saved. But 20% is a starting point, not a law — the right amount is whatever you can sustain after essentials, worked back from your goals and an emergency fund.
Most “how much should I save” answers throw a percentage at you and move on. The percentage is a fine starting point. But saving works best when it’s tied to something real — a goal, a date, a number — not a vague “put some away”.
The best-known framework is the 50/30/20 rule: split take-home pay into 50% needs, 30% wants, 20% savings. It’s popular because it’s simple and it forces saving to be a fixed slice, not whatever happens to be left at month-end — which is usually nothing.
On £2,500 a month after tax, 20% is £500. On £1,800 it’s £360. That’s the benchmark. Whether it’s right for you depends on two things the rule ignores: what you’re saving for, and what you can realistically sustain.
Work back from the goal, not the percentage
A percentage tells you a rough amount; a goal tells you the right amount. Saving £15,000 for a house deposit in three years means £417 a month. Want it in two years? £625. The goal and the deadline set the figure — and reveal whether your timeline is realistic on your income.
The order that works: cover your essentials, build a small emergency buffer, clear any high-interest debt, then split what’s left between goals. For longer goals, investing rather than saving lets compounding do part of the work — £200 a month invested for 20 years grows far beyond the £48,000 you put in.
One honest caveat: a savings figure you can’t stick to is worse than a smaller one you can. Setting 20% then raiding it every other month builds nothing. Start with an amount that survives a normal month, automate it the day you’re paid, and raise it as your income grows.
What changes how much you should save?
The 20% guideline flexes with your situation. Four things move it most.
£Your goals and deadlines
A house deposit in two years demands more per month than the same goal in four. The target and timeline set the real figure.
!Essentials first
If needs eat well over 50% of take-home — common with high rents — the savings slice has to flex down until income rises or costs fall.
%Debt in the mix
The 20% covers saving and debt repayment together. High-interest debt usually takes priority over building savings beyond a starter buffer.
+Saving vs investing
For goals years away, investing lets compounding lift the result — so you may need to set aside less than pure cash saving would require.
Monthly saving at different incomes
What 10%, 20% and 30% of take-home pay looks like as a monthly savings figure.
| Monthly take-home | Save 10% | Save 20% | Save 30% |
|---|---|---|---|
| £1,500 | £150 | £300 | £450 |
| £2,000 | £200 | £400 | £600 |
| £2,500 | £250 | £500 | £750 |
| £3,000 | £300 | £600 | £900 |
| £4,000 | £400 | £800 | £1,200 |
These are guidelines, not targets to feel guilty about. Early in your career or on a tight budget, even 5–10% is a solid start; as income rises, pushing toward 20% and beyond accelerates your goals. To work back from a specific target instead, use the savings goal calculator.
A monthly savings figure, worked through
One realistic example, to show how a goal sets the number rather than a percentage.
- The benchmark. 20% of £2,400 is £480 a month — her starting target.
- The goals. She wants £8,000 for a wedding in 2 years (£333/mo) and a house deposit after that.
- The buffer. First she tops up a starter emergency fund, so the wedding saving doesn’t get raided by surprises.
- The split. She sets £333 to the wedding and puts the remaining £150 toward the deposit, automating both on payday.
- The stretch. When she gets a pay rise, she raises the deposit saving rather than letting lifestyle creep absorb it.
The takeaway: Aimee didn’t just “save 20%” — she worked back from two goals and a deadline, which told her exactly where each pound goes. The percentage set the ballpark; the goals set the plan.
Work back from your goal
Enter what you’re saving for and by when, and see the monthly figure it takes to get there.
Monthly saving questions, answered
How much should I save each month?
What is the 50/30/20 rule?
Is saving 20% of income enough?
Should I save a fixed amount or a percentage?
How much should I save for a house deposit?
Should I save or invest my monthly money?
What if I can’t afford to save 20%?
Related guides & tools
How this guide is built
The 50/30/20 rule reflects widely used UK budgeting guidance; the figures are illustrative percentages of take-home pay. The right amount depends on your goals, income and circumstances — the savings goal calculator works back from a specific target.
Definitions and sources: methodology · sources.
Not financial advice. This guide is for general information and links to calculators that produce estimates. How much to save depends on your circumstances — consider regulated advice for significant financial decisions.