Personal Finance · April 29, 2026 · Rachel Stone · 5 min
A practical UK guide to saving for a house deposit: setting a realistic target, using a Lifetime ISA, building a timeline, and the everyday habits that get you there.
Saving for a house deposit is one of the biggest financial goals most people take on, and the size of the number can make it feel out of reach. Broken into a target, a timeline and a monthly amount, though, it becomes a plan rather than a wish. This is general information, not financial advice.
A house deposit is the lump sum you pay upfront towards a property, with a mortgage covering the rest. It is usually expressed as a percentage of the purchase price — so on a 200,000 pound home, a 10 percent deposit is 20,000 pounds.
The deposit does more than get you through the door. The larger your deposit, the lower your loan-to-value (LTV) ratio, and lower-LTV borrowers typically qualify for better mortgage rates. In other words, saving a bigger deposit can reduce both the amount you borrow and the interest rate on it, which lowers your monthly payments. That is why stretching the deposit a little further often pays off long after you have the keys.
Smaller-deposit mortgages do exist, which can help people buy sooner, but they generally come with higher rates. There is a genuine trade-off between buying earlier with less and waiting to save more — and the right answer depends on your circumstances and the local market.
Vague goals are hard to hit, so start by pinning down a number.
Your real target is the deposit plus the cost of buying. Saving only for the deposit and forgetting the fees is a common way to fall short at the final hurdle.
Writing down a single, specific target — say "28,000 pounds, including fees" — turns an abstract ambition into something you can plan around.
Where you keep the money matters, both for safety and for any boost you can get.
Keep it in cash, not investments. A deposit is usually a short- to medium-term goal, and money you may need within a few years does not belong in the stock market, where it could fall in value at the wrong moment. A competitive savings account or Cash ISA is the typical home for deposit savings — the same low-risk, accessible approach used for an emergency fund.
Consider a Lifetime ISA (LISA). This is the standout option for many first-time buyers. A LISA adds a government bonus on top of what you pay in, up to an annual limit, and can be put towards a first home — effectively free money for your deposit. But the rules are specific:
Because the details matter and can change, check the current LISA rules on GOV.UK before relying on one. Our guide to ISAs and the tax-free wrapper explains how the LISA fits alongside other account types.
With a target and a timeline, the monthly figure falls out of simple arithmetic.
Divide your total target by the number of months you have. If you need 28,000 pounds in five years, that is 60 months, or about 467 pounds a month — before any savings interest or LISA bonus, which reduce what you need to put in yourself.
| Target | Timeline | Roughly per month (before interest/bonus) |
|---|---|---|
| 20,000 | 4 years | about 417 |
| 28,000 | 5 years | about 467 |
| 40,000 | 6 years | about 556 |
If the monthly figure looks impossible, you have three honest levers: save for longer, lower the target (a smaller deposit or cheaper property), or increase what you save each month. Seeing the trade-offs clearly is far better than hoping the gap closes on its own.
Hitting the number month after month is where plans succeed or fail. A few habits make it far more reliable:
It also helps to keep a separate emergency fund so that an unexpected bill does not force you to raid your deposit pot — progress towards a house should not come at the cost of financial safety.
Saving is only part of being mortgage-ready. Lenders look at your wider finances, so it is worth keeping your credit in good shape and your spending stable in the run-up to applying. As the goal nears, free and impartial help from MoneyHelper can guide you through the buying process, and Citizens Advice covers your rights and the practical steps of purchasing a home.
Saving for a house deposit becomes manageable once you turn it into a plan: set a realistic target that includes buying costs, keep the money in cash, make the most of a Lifetime ISA bonus if it suits you, and work backwards to a monthly amount you can automate. A larger deposit usually means cheaper borrowing, so every extra pound saved can keep working for you long after you move in.