Over 44,000 households have used the government’s Mortgage Guarantee Scheme since 2021 to buy a home with just a 5% deposit. That figure tells you something important: you do not need a massive pile of savings to get onto the property ladder in 2026. I have been writing about UK property for long enough to see the same pattern repeat — people assume they need a 20% deposit, so they never check what is actually available. That assumption costs them years of renting.
Buying an apartment in the UK today is not just about finding the right floor plan. The schemes, tax breaks, and eligibility rules have shifted significantly. If you know which levers to pull, you can save thousands. If you do not, you will overpay on stamp duty, miss out on government bonuses, or lock yourself into a property that does not suit your long-term finances. Here is what you actually need to know.
How the main government schemes actually work for apartment buyers
Let me clear up the confusion I see most often. People hear “Shared Ownership” or “First Homes” and assume they are the same thing. They are not. One gives you a share of the property with rent on the rest. The other gives you full ownership at a discounted price. The right choice depends on your income, your deposit, and where you want to live.
Shared Ownership is the most widely used scheme for a reason. You buy a share — typically 25–75% — and pay subsidised rent on the rest to a housing association. Your mortgage and deposit are calculated only on your share. If you buy a 30% share of a £250,000 apartment, your mortgage covers £75,000 and your deposit could be as low as £3,750 at 5%. Over time, you can staircase to full ownership. The household income cap is £80,000 (£90,000 in London).
First Homes works differently. You get a minimum 30% discount on a new-build apartment, and you own 100% of it from day one. No rent. No staircasing. The discount stays with the property permanently, so when you sell, the next eligible buyer gets the same deal. You must be a first-time buyer, earn under £80,000 (£90,000 in London), and get a mortgage for at least 50% of the discounted price. The discounted price cannot exceed £250,000 (£420,000 in London).
If you are saving for a deposit, the Lifetime ISA is hard to beat. For every £4 you save, the government adds £1, up to £1,000 per year. If you max it out from age 18 to 50, you could accumulate £32,000 in bonuses alone. The catch: the property must cost £450,000 or less, and you cannot withdraw for anything other than a first home or retirement without a 25% penalty. That penalty wipes out your bonus and takes 6.25% of your own money too. My advice: only use a LISA if you are confident you will buy within the price cap.
For a deeper look at what first-time buyers actually face, I wrote about common fears and how to handle them — it covers the emotional side that schemes do not address.
Why the tax benefits matter more than you think
The stamp duty relief for first-time buyers is straightforward but easy to miscalculate. You pay 0% on the first £300,000 of your purchase price. If your apartment costs £350,000, you pay 5% only on the £50,000 above that threshold — that is £2,500, not 5% of the whole price. If your apartment costs £500,000, you pay 0% on the first £300,000 and 5% on the next £200,000, totalling £10,000. Above £500,000, the relief disappears entirely and standard rates apply.
Here is where the nuance matters. If you are buying with a partner and one of you has owned property before, you lose first-time buyer status for the whole transaction. That mistake alone can cost you thousands. I have seen couples assume both need to be first-time buyers, only to discover at exchange that they owe full stamp duty.
The Mortgage Guarantee Scheme is now permanent, which changes the landscape significantly. Before July 2025, it was a temporary fix. Now lenders know it is here to stay, and competition among them has increased. Many now offer 5% deposit mortgages without even using the scheme. The average first-time buyer deposit in 2024 was £61,090 — roughly 20% — but that figure hides the fact that 5–10% deposit products are now widely accessible. If you have been saving for years thinking you need £60,000, check what you actually need. It might be far less.
If you are considering downsizing later in life, the tax picture shifts again. I covered the specific considerations for downsizing to an apartment in retirement — the stamp duty implications are different when you are selling a larger home.
Where apartment buyers get the details wrong
The mistakes I see are not about picking the wrong scheme. They are about misunderstanding the rules that apply to each one. Here are the four that cost people the most.
Ignoring the income cap on Shared Ownership and First Homes
Both schemes cap household income at £80,000 (£90,000 in London). If you and your partner earn £82,000 combined, you are ineligible for Shared Ownership and First Homes in most areas. That is not a soft limit — it is a hard one. I have seen buyers spend months viewing properties under these schemes only to discover at application that their bonus or overtime pushed them over the threshold. Check your combined income before you start looking. If you are close to the cap, consider the Lifetime ISA or Mortgage Guarantee Scheme instead, which have no income limits.
Forgetting the 12-month LISA rule
Your Lifetime ISA must be open for at least 12 months before you can use it to buy a home. If you open one in March 2026 and find your dream apartment in November 2026, you cannot touch that money without the 25% penalty. The clock starts from the date of your first deposit, not from when you open the account. Plan backwards: if you want to buy in summer 2027, open your LISA by summer 2026 at the latest.
Overlooking service charges on Shared Ownership apartments
Shared Ownership apartments come with service charges and ground rent on top of your mortgage and subsidised rent. On a £300,000 home in the South East with a 25% share, your monthly rent on the remaining 75% is roughly £515 at 2.75% per year. Add service charges and ground rent, and your monthly housing cost can be higher than a comparable mortgage on a cheaper freehold property. Do the full monthly calculation before you commit. A future-proof apartment checklist can help you spot hidden costs early.
Assuming the First Homes discount applies everywhere
First Homes is only available on new-build properties in England. It does not exist in Scotland, Wales, or Northern Ireland. Even within England, local authorities can set the discount at 30%, 40%, or 50% — and they prioritise key workers and people with local connections. If you are not a key worker and do not live in the area, you may be at the back of the queue. Check your local council’s allocation policy before you fall in love with a specific development.
→ Scroll right to see all columns
| Scheme | Max Property Price | Income Cap | Deposit Needed |
|---|---|---|---|
| Shared Ownership | Varies by provider | £80k (£90k London) | 5–10% of your share |
| First Homes | £250k (£420k London) | £80k (£90k London) | 5% of discounted price |
| Lifetime ISA | £450,000 | None | Varies (bonus helps) |
| Mortgage Guarantee | £600,000 | None | 5% |
If you are investing in apartments rather than buying your own home, the rules are completely different. I have a separate guide on investing in multi-family apartments that covers the tax and financing angles for landlords.
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How to choose the right scheme and actually use it
Picking the right scheme is about matching your numbers to the rules. Here is how to work through it step by step.
Calculate your real deposit and monthly costs
Start with what you have saved. If you have £10,000, a 5% deposit on a £200,000 apartment is £10,000 — you are in range for the Mortgage Guarantee Scheme. If you have £7,500, Shared Ownership on a 25% share of a £300,000 apartment needs only £3,750 at 5% of your share, leaving you room for fees. Do not forget legal fees, surveys, and moving costs. A good rule: keep at least £3,000 aside beyond your deposit for these extras. If you are unsure about the legal side, speaking to a property lawyer early can save you from costly contract surprises.
Open a Lifetime ISA if you are under 40 and the price cap fits
If you are between 18 and 39 and the apartments you are looking at cost £450,000 or less, open a LISA today. Even if you only save £100 a month, the government adds £25 on top. Over three years, that is £900 free. The key is the 12-month waiting period — open it now even if you are not buying for two years. Choose a cash LISA if you plan to buy within five years. Choose a stocks and shares LISA only if your timeline is longer and you are comfortable with market ups and downs.
Check your eligibility for First Homes before viewing
First Homes is the best deal on paper — 30–50% off a new-build apartment with full ownership. But the eligibility checks are strict. You must be a first-time buyer, earn under £80,000 (£90,000 in London), and get a mortgage for at least 50% of the discounted price. The discounted price itself must not exceed £250,000 (£420,000 in London). That means the market value of the apartment before discount cannot exceed roughly £357,000 at 30% off, or £500,000 at 50% off in London. Do the maths before you visit a show home.
Plan for the future: staircasing and resale
If you choose Shared Ownership, think about staircasing from the start. Can you afford to buy additional shares in five years? Will your income grow enough? Some housing associations limit how much you can staircase at once, and the rent on the unsold portion is recalculated when you buy more shares. Also consider resale: Shared Ownership apartments can be harder to sell than freehold properties because the buyer must also meet eligibility criteria. If you think you might move within five years, the Lifetime ISA or Mortgage Guarantee route may be more flexible.
For a practical look at whether a new-build apartment is worth the premium, I compared the real costs of new-build versus older apartments — the answer depends heavily on the scheme you use.
Frequently asked questions
Can I use Shared Ownership and a Lifetime ISA together? ▾
What happens if I inherit a property while using a first-time buyer scheme? ▾
Does the First Homes discount apply to apartments above the ground floor? ▾
Can I rent out my Shared Ownership apartment later? ▾
What if my apartment costs more than £450,000 — can I still use a LISA? ▾
If you are still unsure which scheme fits your situation, a financial advisor can run the numbers for your specific income and deposit. It is worth the fee if it stops you from making a costly mistake.
The schemes and tax breaks are generous, but they are also precise. One wrong assumption about your income, the property price, or your eligibility can wipe out thousands in benefits. My advice: pick one scheme, learn its rules inside out, and build your plan around it. Do not try to keep all the options open at once — that is how people miss deadlines and lose bonuses.
If this was useful, you might also want to read Boost Your Credit Score: The UK Apartment Buyer’s Secret Weapon.
Sources and Further Reading
Ground Floor or Penthouse Suite? UK Apartment Choice Dilemmas — A practical breakdown of how floor level affects resale value, noise, and accessibility.
Consider Bedroom Size When Buying Your First UK Apartment — Why square footage matters more than the number of bedrooms, especially under government schemes.
Government Schemes for First-Time Buyers UK 2026. We Move Together, 2026.
What the Recent Housing Announcements Mean for Homeowners, Landlords and Buyers in 2026. Clarke & Son, 2026.
