Start With a Realistic Target
The first step is turning “a deposit” into an actual number. Most lenders ask for at least 5% of the property price, while 10% opens up more competitive mortgage rates. On a £180,000 home, that means a deposit of £9,000 at 5%, or £18,000 at 10%.
Your deposit is not quite the whole story, though. You will also need money for a valuation fee, a survey, legal fees, and removal costs. Stamp duty relief for first-time buyers may reduce that bill, but it is worth checking the current thresholds rather than assuming you will pay nothing. As a rule of thumb, add around £3,000 to £5,000 to your target for these extras.
Then do the reverse maths. If you need £20,000 in total, that is roughly £278 a month over six years, £334 over five years, or £417 over four years. Seeing it written down like that makes the goal feel far less abstract — and far less terrifying.
Set a Monthly Figure You Can Genuinely Hit
Ambitious targets are easy to set in January and abandon by March. A figure you can maintain for years is worth more than a heroic number you manage twice.
Look at what you currently save or pay towards other debts each month. If £150 is comfortable, start there and treat any increase as a bonus. Automate it as a standing order on payday, so the money leaves your current account before you have a chance to spend it. Saving on payday rather than at the end of the month usually doubles what actually lands in the account.
Trim the Recurring Costs, Not Just the Treats
Skipping coffee for a year saves less than most people think. The real gains come from subscriptions and bills that quietly repeat every month.
- List every subscription you pay for, then cancel anything you have not used in the past month.
- Shop around for mobile, broadband and insurance at renewal. Loyalty rarely pays — switching often saves several hundred pounds a year.
- Check your energy tariff and set up a smart meter if you do not have one. Even small changes to how you heat and light a home show up on the bill.
- Review your council tax band and any discounts you might be entitled to, such as the single person discount.
- Plan meals before the weekly shop and use a list. Food waste is one of the biggest hidden leaks in a household budget.
A dozen small recurring savings of £10 to £20 each month can easily add £150 to your deposit fund — without touching your quality of life.
Keep the Money Somewhere Separate
If your deposit sits in the same account you use for everyday spending, it will get spent. Open a separate savings account and give it a clear name, such as “house deposit”. Keep it away from your debit card and don't link it to apps you check casually.
A cash ISA or a Lifetime ISA can be sensible places for deposit savings, since interest is tax-free and a Lifetime ISA adds a government bonus of 25% on up to £4,000 a year. Do read the terms first: a Lifetime ISA has rules about when you can withdraw without a penalty, and it has to be open for at least twelve months before you can use it towards a home.
If you have credit card or overdraft debt charging high interest, clear that before building savings. Paying off a card at 22% is a better return than any savings account will give you.
Look for Extra Pounds Without Burning Out
Cutting costs has a ceiling. Earning a little more can speed things up considerably.
- Sell anything you have not used in a year — old phones, bikes, tools and furniture all hold value.
- Check whether you are entitled to any benefits or tax credits you are not claiming, including help with rent or childcare costs.
- Consider overtime, a few extra shifts, or a small side income if your main job allows it.
- Ask your employer about any season ticket loans or savings schemes, and about pay reviews you may have missed.
Put every windfall — a bonus, a tax rebate, birthday money — straight into the deposit account. It is money you never budgeted for, so you will not miss it.
Track Progress and Protect the Plan
Check your balance every month and write down the total. Watching the number climb is the strongest motivation there is. Set small milestones: £1,000, £5,000, halfway. Celebrate each one cheaply — a takeaway, a day out — then carry on.
Expect setbacks. A boiler repair or a car bill will happen at some point, and it may eat one month's saving. That is normal, not failure. Reduce the standing order for a month if you need to, then put it back up. Adding £50 a week, or roughly £217 a month, builds over £13,000 in five years, before any interest. Slow and steady really does get there — and a mortgage adviser can help you check your affordability and credit file long before you are ready to buy, so nothing catches you out.
Sophie Bennett