Nearly half of first-time buyers in the UK now rely on a government-backed scheme to get onto the property ladder. That figure alone tells you how hard it is to save a full deposit while paying rent. Over the years covering this beat, I’ve watched the same pattern repeat: people assume their only option is a standard mortgage with a 10% or 20% deposit, and they give up before they’ve even looked at what’s actually available. The truth is, there are several well-designed schemes that can cut your upfront costs dramatically — but each one works differently, and picking the wrong one can cost you thousands. Here’s what you actually need to know.
If you’re starting from scratch, the first thing to understand is that you don’t need a 10% deposit to buy a home. The Mortgage Guarantee Scheme lets you buy with just 5% down on properties up to £600,000. That’s a £7,500 deposit on a £150,000 flat, not £15,000. A smart leak detector like the X-Sense Wi-Fi Water Leak Detector can save you from costly water damage in your first home — a small investment that protects a much bigger one.
How Shared Ownership and First Homes Actually Work
The most common confusion I see is between Shared Ownership and First Homes. They sound similar, but they’re fundamentally different products. Shared Ownership means you buy a share of the property — typically between 25% and 75% — and pay rent on the rest to a housing association. Your deposit is based only on the share you’re buying, so a 5% deposit on a 40% share of a £200,000 property is just £4,000. You can increase your share over time through a process called staircasing, and once you own 100%, the rent stops and you own the property outright. First Homes, on the other hand, lets you buy 100% of a new-build property at a discount of at least 30% off the market price. You own it outright from day one, but the discount stays with the property permanently — so when you sell, the next buyer also gets the discount. That keeps the homes affordable in perpetuity.
What I’d do if I were starting out: I’d open a Lifetime ISA as soon as I turned 18, even if I wasn’t planning to buy for years. The 25% bonus is free money — up to £1,000 per year — and the 12-month minimum holding period means you need to plan ahead. If you’re in your twenties and saving for a first home, that’s the single most effective thing you can do. Just remember the property must cost £450,000 or less, and you can’t use it alongside a Help to Buy ISA bonus on the same purchase.
Why the Right Scheme Can Save You Thousands
The difference between picking the right scheme and the wrong one isn’t small. A recent National Audit Office investigation into Shared Ownership found that many buyers don’t fully understand the longer-term financial risks. For example, if you buy a 25% share, you’re still paying rent on the remaining 75% — and that rent is typically around 2.75% of the housing association’s share per year. On a £200,000 property, that’s about £4,125 a year in rent on top of your mortgage payments. That’s not necessarily a bad deal — it’s often less than market rent — but you need to budget for it.
First Homes, by contrast, has no rent at all — you own 100% from day one, just at a discounted price. But it’s only available on new-builds in England, and the price cap after discount is £250,000 outside London (£420,000 in London). If you’re in Scotland, Wales, or Northern Ireland, you’ll need to look at regional alternatives. Scotland offers the First Home Fund (up to £25,000 towards your purchase as a shared equity loan) and LIFT schemes. Wales has Help to Buy – Wales, offering a 20% shared equity loan on new-builds up to £300,000. Northern Ireland has the Co-Ownership scheme, similar to England’s Shared Ownership. What I tend to notice is that people in Scotland and Wales often overlook their own schemes because the English ones get more media coverage. Don’t make that mistake.
Where First-Time Buyers Get Tripped Up
I’ve seen the same handful of mistakes come up again and again. Here are the ones that cost the most.
Ignoring the Lifetime ISA’s 12-Month Rule
The biggest trap with the Lifetime ISA is the 12-month minimum holding period. The clock starts when you open the account, not when you start saving. If you open a LISA in January and find your dream flat in November, you can’t use the bonus — and if you withdraw the money for any reason other than buying a first home or retirement, you lose 25% of the withdrawal. That penalty means you get back less than you put in. The fix is simple: open the account as early as possible, even if you’re only putting in a small amount. The 12-month countdown starts immediately.
Overlooking Service Charges on Leasehold Properties
Almost all Shared Ownership properties are leasehold. That means you’ll pay ground rent and service charges on top of your mortgage and rent. These can run into thousands per year and can increase unexpectedly. A recent survey found that many Shared Ownership buyers didn’t budget for these costs. Before you commit, ask the housing association for a full breakdown of current and projected service charges. If they can’t provide it, that’s a red flag. A property lawyer can review the lease and flag any unusual terms before you exchange contracts.
Assuming You Can’t Afford Anything
The most expensive mistake is not looking at all. The Mortgage Guarantee Scheme means you can buy with a 5% deposit on properties up to £600,000. First Homes offers a 30–50% discount on new-builds. Shared Ownership lets you buy a share for as little as 10% (though most schemes require 25%). The Which? guide to first-time buyer schemes breaks down eligibility for each one. My advice: spend an afternoon checking your eligibility for every scheme, not just the one you’ve heard of. You might qualify for something you didn’t know existed.
| Scheme | Deposit Needed | Income Cap | Property Cap |
|---|---|---|---|
| Shared Ownership | 5% of your share | £80,000 (£90k London) | No fixed cap |
| First Homes | 5% of discounted price | £80,000 (£90k London) | £250k (£420k London) |
| Lifetime ISA | 5% of full price | None | £450,000 |
| Mortgage Guarantee | 5% of full price | None | £600,000 |
Forgetting About Regional Differences
England’s schemes get the most attention, but Scotland, Wales, and Northern Ireland all have their own. Scotland’s First Home Fund offers up to £25,000 as a shared equity loan. Wales’s Help to Buy – Wales gives a 20% equity loan on new-builds up to £300,000, and it runs until September 2026. Northern Ireland’s Co-Ownership scheme works like Shared Ownership. If you’re looking outside England, check your local scheme first — it might be more generous than the English equivalent.
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How to Choose and Apply for the Right Scheme
Once you know what’s available, the next step is matching a scheme to your situation. Here’s how to work through it.
Check Your Eligibility First
Start with the income caps. Shared Ownership and First Homes both cap household income at £80,000 in England (£90,000 in London). If you earn more, those schemes are off the table. The Lifetime ISA and Mortgage Guarantee Scheme have no income caps, so they’re open to anyone. If you’re a council tenant in England, check Right to Buy — you could get a discount of up to £102,400 outside London or £136,400 in London, depending on how long you’ve been a tenant. The discount increases with the length of your tenancy, and you need to have been a tenant for at least three to five years.
Decide Between Owning a Share or Owning Outright
This is the biggest fork in the road. Shared Ownership means you own a share and pay rent on the rest. You can staircase to 100% over time, but each staircase costs money for a valuation and potentially a new mortgage. First Homes means you own 100% from day one at a discount, but the discount stays with the property — so you won’t benefit from full market appreciation when you sell. If you plan to stay long-term and want full ownership, First Homes is probably better. If you need lower upfront costs and are comfortable with ongoing rent, Shared Ownership works well. A financial advisor can run the numbers for your specific situation.
Open a Lifetime ISA Immediately
Even if you’re not sure which scheme you’ll use, open a Lifetime ISA as soon as you turn 18. You can contribute up to £4,000 per tax year and get a 25% bonus — up to £1,000 free per year. The 12-month clock starts when you open the account, so the sooner you open it, the sooner you can use it. You can choose a cash LISA or a stocks and shares LISA. If you’re planning to buy within five years, a cash LISA is safer. If you’re further out, a stocks and shares LISA could grow faster, but it comes with risk.
Understand the Future-Phase Changes
The Help to Buy equity loan closed to new applicants in October 2022, with final completions in March 2023. If you see an old article recommending it, ignore it. The Mortgage Guarantee Scheme is still active but is reviewed periodically. Wales’s Help to Buy – Wales runs until September 2026. Scotland’s First Home Fund is subject to funding availability. These schemes can change with little notice, so check the official government pages before you make any decisions. What I’d do: set a calendar reminder every six months to check whether your preferred scheme is still open and whether any new ones have launched.
- 1Check your eligibilityReview income caps, property caps, and regional availability for each scheme. Use the table above as a starting point, then verify on the official government website.
- 2Open a Lifetime ISADo this now, even if you’re not ready to buy. The 12-month holding period starts from the date you open the account, not when you start saving.
- 3Speak to a mortgage brokerA broker who specialises in first-time buyers can tell you which lenders offer the best rates for your chosen scheme. Many charge no upfront fee.
- 4Get a property lawyerFor Shared Ownership, the lease is critical. A property lawyer can review the lease, flag unusual service charge terms, and explain your staircasing rights before you commit.
Can I use a Lifetime ISA and Shared Ownership together? ▾
What happens if I withdraw LISA money for something other than a first home? ▾
Can I sell my Shared Ownership property? ▾
Is First Homes available in Scotland or Wales? ▾
Do I need a 10% deposit for the Mortgage Guarantee Scheme? ▾
What’s the difference between Help to Buy and First Homes? ▾
The single most important thing you can do today is open a Lifetime ISA. Even if you’re years away from buying, the 12-month clock starts now, and the 25% bonus is free money you can’t get any other way. After that, check your eligibility for Shared Ownership and First Homes — you might qualify for a scheme that cuts your deposit by thousands. If this was useful, you might also want to read Understanding Mortgage Penalties for Early Repayment.
Sources and Further Reading
Top Tips for Enhancing Apartment Resale Value in the UK — Practical advice on improvements that add value when you eventually sell.
Government Schemes for First-Time Buyers. Clearview Mortgage, 2024.
First-Time Buyer Schemes Explained. Which?, 2024.
