Over the past few years, I’ve watched the same pattern play out again and again. A first-time buyer finds a property they love, only to realise the monthly payments on a standard mortgage would stretch their budget too far. What many don’t know is that a handful of government-backed schemes exist specifically to close that gap — and they can save you tens of thousands of pounds. For example, the First Homes scheme offers discounts of at least 30% on new build properties in England, which on a £300,000 home means you pay just £210,000. That’s a £90,000 saving before you even factor in your deposit. The catch is that most people don’t know these schemes exist, or they assume they won’t qualify. Here’s what you actually need to know.
If you’re serious about buying your first home, you need to understand which of these schemes actually applies to your situation. I’ve seen people miss out on thousands because they didn’t check the income caps or property price limits. For a deeper look at the full buying process, you might also want to read our guide on essential considerations when buying a house in the UK. And if you’re unsure about the legal side of things, speaking with a property lawyer early on can save you from costly mistakes.
How Government Schemes Actually Work for First-Time Buyers
The most important thing to understand is that these schemes aren’t just for people with no savings. They’re designed to make homeownership accessible even if you have a modest deposit or a moderate income. The Shared Ownership scheme lets you buy a share as low as 10% of a property, meaning your deposit could be as little as a few thousand pounds. On a £250,000 home, a 30% share means your mortgage covers £75,000, and a 5% deposit on that share is just £3,750. That’s a fraction of what you’d need for a full purchase.
What I’d do if I were starting out today is look at the income caps first. If your household earns under £80,000 (£90,000 in London), you’re eligible for both First Homes and Shared Ownership. If you earn more, you can still use the Lifetime ISA or the Mortgage Guarantee Scheme — neither has an income cap. The key is matching the scheme to your specific financial picture, not just picking the one with the biggest headline discount.
Why These Schemes Matter More Than You Think
The real-world impact of these schemes is enormous. Consider this: on a £300,000 new build, a 30% First Homes discount saves you £90,000 immediately. Your mortgage and deposit are calculated on the discounted price of £210,000, which means lower monthly payments from day one. That’s not a theoretical benefit — it’s a concrete difference in what you can afford. According to the Own New Rate scheme, a developer-subsidised mortgage rate of 2.5% instead of a standard 4.5% on a £300,000 mortgage saves approximately £300 per month. Over a five-year fixed term, that’s £18,000 in savings.
I’ve noticed that many buyers focus solely on the deposit amount and ignore the monthly cost. That’s a mistake. A scheme like Shared Ownership might require a smaller deposit, but you’re also paying rent on the portion you don’t own — typically around 2.75% of the housing association’s share per year. On a £300,000 home where you own 25%, that rent is about £515 per month. Your total monthly cost is the mortgage payment plus that rent. For some people, that’s still cheaper than renting privately. For others, it’s a stretch. The trick is to run the numbers for your specific situation. If you’re unsure about the financial planning side, a financial advisor can help you model different scenarios.
Where Most First-Time Buyers Get It Wrong
After covering this topic for years, I’ve seen the same mistakes crop up repeatedly. Here are the most common ones — and how to avoid them.
Ignoring the Income Caps and Property Price Limits
The First Homes scheme has a household income cap of £80,000 (£90,000 in London), and the discounted price must be no more than £250,000 (£420,000 in London). The Lifetime ISA requires the property to cost £450,000 or less. The Mortgage Guarantee Scheme caps the property at £600,000. If you don’t check these limits before you start house hunting, you could fall in love with a property you can’t buy under the scheme. What I’d do is write down the caps for every scheme you’re considering and filter your property search accordingly. It saves heartache later.
Forgetting About the Lifetime ISA Withdrawal Timeline
The Lifetime ISA gives you a 25% bonus on savings, but some solicitors and mortgage lenders are slow to process LISA withdrawals. You need to start the withdrawal process at least 30 days before you need the funds. If you leave it too late, you could delay your completion date or lose the property. This is a logistical trap that catches people every year. Set a calendar reminder the day your offer is accepted.
Overlooking the Deposit Unlock Scheme
Many buyers know about the Mortgage Guarantee Scheme but have never heard of Deposit Unlock. Both let you buy with a 5% deposit, but Deposit Unlock is industry-backed (developer plus insurer) rather than government-backed. It’s available on new builds from participating developers only. If you’re looking at a new build and the developer offers Deposit Unlock, you may have an easier path to a 95% LTV mortgage than through the government scheme. Ask the sales team specifically about it.
Not Planning for the End of the Subsidised Rate
The Own New Rate scheme gives you a low fixed rate for two to five years, but when that period ends, your rate reverts to the lender’s standard variable rate. That could be significantly higher. You need to plan to remortgage at that point. If your financial situation changes — say you lose your job or your credit score drops — you might not qualify for a new deal. Build a buffer into your budget so you’re not caught off guard.
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| Scheme | Key Benefit | Income Cap | Property Limit |
|---|---|---|---|
| Shared Ownership | Buy 10–75% share, rent the rest | £80k (£90k London) | Varies by provider |
| First Homes | 30–50% discount on new builds | £80k (£90k London) | £250k (£420k London) |
| Lifetime ISA | 25% bonus on savings (up to £1k/yr) | None (age 18–39) | £450k |
| Mortgage Guarantee | Buy with 5% deposit | None | £600k |
| Stamp Duty Relief | 0% on first £300k | None | £500k |
If you’re worried about the legal complexities of combining schemes — for example, using a Lifetime ISA alongside Shared Ownership — it’s worth consulting a real estate lawyer who can check the fine print on your contract.
Your Step-by-Step Guide to Using These Schemes
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Check Your Eligibility First
Before you look at a single property, confirm which schemes you qualify for. If you’re a first-time buyer with a household income under £80,000, you’re eligible for First Homes, Shared Ownership, and the Lifetime ISA. If you earn more, focus on the Lifetime ISA and Mortgage Guarantee Scheme. If you’re not a first-time buyer but can’t afford to buy now, Shared Ownership may still be open to you — you just need to be selling your current home. Write down your eligibility list and keep it with you when you view properties.
Calculate Your Real Monthly Cost
Don’t just look at the purchase price. For Shared Ownership, your monthly cost is the mortgage payment on your share plus the rent on the housing association’s share. For First Homes, your mortgage is based on the discounted price, which lowers your monthly payment. For the Own New Rate scheme, factor in what happens when the subsidised rate ends. Use an online mortgage calculator to model different scenarios. If the numbers don’t work at the standard rate, you’re taking a risk.
Start the Lifetime ISA Withdrawal Process Immediately
As soon as your offer is accepted, contact your LISA provider and your solicitor to start the withdrawal process. The 25% government bonus is added to your savings, but it takes time to process. Some providers need up to 30 days. If you delay, you could miss your completion date. This is one of those administrative steps that feels minor but can derail an entire purchase.
Ask About Developer-Specific Schemes
When you visit a new build development, ask the sales team about Deposit Unlock and Own New Rate. These aren’t advertised as prominently as the government schemes, but they can make a huge difference. Deposit Unlock lets you buy with a 5% deposit on new builds from participating developers. Own New Rate can cut your monthly mortgage payment by hundreds of pounds for the first few years. The developer’s contribution is disclosed to the lender, so there are no hidden surprises.
Plan for the Future
If you use Shared Ownership, plan your staircasing strategy. You can buy additional shares over time, but the property value may increase, making each share more expensive. If you use the Own New Rate scheme, set a reminder to remortgage before the subsidised rate ends. If you use the Lifetime ISA, remember that you can hold it alongside other ISAs — you’re not limited to just one. For a broader perspective on long-term homeownership, our article on whether your forever home is a myth might challenge some assumptions you hold.
Frequently Asked Questions
Can I use the Lifetime ISA with Shared Ownership? ▾
What happens if I withdraw money from my Lifetime ISA for something other than a first home? ▾
Is the Mortgage Guarantee Scheme permanent? ▾
Can I rent out a Shared Ownership property? ▾
What’s the difference between Deposit Unlock and the Mortgage Guarantee Scheme? ▾
If you’re still unsure about which scheme fits your situation, a financial advisor can run the numbers for you and help you avoid costly mistakes.
Your Next Move
The single most important step you can take today is to check your eligibility against the income caps and property price limits for each scheme. Write them down. Then, when you view a property, you’ll know instantly whether it’s within reach. Don’t let the complexity of the options stop you — the savings are real, and they’re available right now. If this was useful, you might also want to read smart steps to consider when pre-selling in the UK.
Sources and Further Reading
Tips for buying a house near UK train stations — If location is a priority, this guide covers what to look for when buying near public transport.
Understanding title deeds when buying a house in the UK — A practical look at what title deeds contain and why they matter for your purchase.
Government schemes for first-time buyers. New Builds, 2025.
Government schemes for first-time buyers UK 2026. We Move Together, 2026.
