First Time Buyer Mortgages

Yes, you can buy your first home with a deposit as low as 5% — and sometimes less. Which route makes sense depends on your deposit, your income, and the property you want to buy.

From working out what you can realistically afford, through Shared Ownership, savings schemes and buying with someone else, to guiding you through the mortgage process itself — we help first-time buyers through the whole journey, not just the deposit.

New to the process? We guide you from your first Agreement in Principle through to picking up the keys.
Small deposit? Shared Ownership and Deposit Unlock can bring it down to 5% — our Low Deposit guide covers no-deposit routes in full.
Buying with someone else? We arrange joint mortgages, guarantor mortgages, and sibling/friend purchases.
First time buyer mortgage advice from Greywood Financial
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Last reviewed: 16 September 2026 · Reviewed by Tristan Ward, Director, Greywood Financial

How much deposit do I need as a first-time buyer?

There isn't one deposit figure that applies to every first-time buyer. How much you need depends on the route into homeownership you take — a standard mortgage, Shared Ownership, Deposit Unlock, or a guarantor or joint mortgage.

Route
Deposit you may need
What we check
Standard mortgage
5–10% of the purchase price
Credit score, income and affordability against the lender's multiple
Shared Ownership
Typically 5–10% of the share you buy
Share size, local eligibility rules, rent on the unowned share
Deposit Unlock
5% of the full purchase price
Whether the development and lender both participate in the scheme
Guarantor or joint (JBSP) mortgage
Can be significantly lower depending on the structure
Whose income and credit history count, and how ownership is split
Why the route matters

Two buyers with exactly the same deposit and income can end up with very different options depending on whether they buy outright, through Shared Ownership, using Deposit Unlock, or with family support. The right route is the one that fits your specific numbers, not a generic recommendation.

Considering a very low or no-deposit route?

This page covers the full first-time buyer journey. If a small or fixed deposit — rather than first-time-buyer status specifically — is your main starting point, our dedicated Low Deposit Mortgages guide goes deep into 100% mortgages, rental-history assessments, fixed-amount schemes and family-backed security. Either way, tell us your deposit and income and we'll point you the right way.

Can I get a 100% mortgage with no deposit as a first-time buyer?

In certain circumstances, yes — though it's a small, specialist corner of the market rather than a mainstream option. A handful of lenders will consider full-price lending based on strict affordability alone, a consistent rental payment record, or a family member's savings or property offered as security instead of a cash deposit from you. Availability changes at short notice and eligibility is generally tighter than for a standard mortgage — a strong, consistent payment history and clean credit file are usually expected, and borrowing 100% of a property's value leaves no buffer if prices fall. We'll only raise this route where it genuinely suits your circumstances.

Want the full detail on these routes?

Our dedicated Low Deposit Mortgages guide goes deep into each of these no- and low-deposit routes, how family-backed security works, and the risks involved — worth reading in full if a small or fixed deposit, rather than first-time-buyer status specifically, is your main starting point.

Still studying?

A few lenders offer a joint-borrower structure specifically for people still in full-time education — a parent's income is added to boost what can be borrowed while the property stays solely in your name. It's a niche option, so we only raise it where it's genuinely relevant to your circumstances.

How does Shared Ownership work for first-time buyers?

Shared Ownership lets you buy a share of a home — typically between 25% and 75% of its value — and pay rent to a housing association on the part you don't own, which lowers the deposit and mortgage you need to get started.

You'll need a mortgage (or savings) to cover your share, a deposit usually worth 5–10% of that share, and you can "staircase" by buying further shares over time until you own the property outright.

As part of our first-time buyer service we check whether Shared Ownership suits your income and local eligibility rules before recommending it.

Property value £300,000
Share purchased (50%) £150,000
Deposit needed (10% of share) £15,000
Remaining share Rented from the housing association
Buying a smaller share now doesn't have to be permanent — staircasing lets you increase your ownership as your income grows.

Illustrative example only. Actual shares, deposits and rent depend on the specific scheme, housing association and property.

What is the Deposit Unlock scheme for new-build homes?

Deposit Unlock is a new-build scheme that lets first-time buyers purchase a new home with just a 5% deposit, with the remaining 95% covered by a mortgage from a participating lender and backed by insurance the housebuilder pays for.

It's only available on selected new-build developments and through specific lenders, so we check whether your chosen property and lender qualify before you commit. We can tell you within a short conversation whether Deposit Unlock is realistic for your purchase.

What are the rules for using a Lifetime ISA or Help to Buy ISA towards my first home?

A Lifetime ISA (LISA) lets you save up to £4,000 a year towards your first home and the government adds a 25% bonus (up to £1,000 a year), provided the property costs £450,000 or less and you've held the account for at least 12 months before withdrawal. The Help to Buy ISA (now closed to new applicants) works similarly but with different contribution limits and a maximum property price of £250,000 outside London.

Year 1 £5,000
Year 2 £10,000
Year 3 £15,000

We help you time your withdrawal correctly and combine it with your mortgage application so the bonus and completion date line up.

Figures shown are for illustration only, based on the maximum £4,000 annual LISA contribution plus the maximum 25% government bonus. Actual bonus amounts depend on what you pay in.

Buying with someone else?

Not every first-time buyer purchases alone. Siblings, friends and family members can all help you get on the ladder — the right structure just depends on who's providing income, security, or both.

Can siblings buy a house together as first-time buyers?

Yes, siblings can buy a property together as joint first-time buyers, and most lenders will treat you both as first-time buyers provided neither of you has owned a home before. You'll need to agree how the mortgage and ownership shares are split, ideally set out in a declaration of trust drawn up by a solicitor, and lenders will assess both incomes and credit histories jointly. We regularly help sibling and friend co-buyers find lenders comfortable with this type of application.

What's the difference between a parental guarantor mortgage and a joint mortgage with a parent?

With a guarantor mortgage, a parent supports your application by acting as security for the loan — often using their savings or property — without being named on the property's title or having ongoing legal ownership. With a joint mortgage (sometimes called Joint Borrower Sole Proprietor, or JBSP), a parent is named on the mortgage and their income counts towards affordability, but they don't need to own a share of the property or pay stamp duty as an owner. We'll talk you through which structure suits your family's circumstances and find lenders who offer it.

Who can help, and what it means for your first-time-buyer status

Parents, grandparents, siblings and sometimes wider family can act as a guarantor or joint borrower — and because a JBSP helper isn't named on the property's title, this shouldn't affect your own first-time-buyer stamp duty relief. The detailed rules on age limits, how many incomes can be combined, and how long the arrangement typically runs are covered in full on our Low Deposit Mortgages guide — not every lender offers JBSP alongside every product, so we check this before recommending it either way.

More than one applicant?

Whoever is named on the mortgage will have their income and credit history assessed jointly, so it's worth agreeing ownership shares and expectations before you apply — ideally set out in a declaration of trust.

How much can I borrow as a first-time buyer?

There isn't one deposit or income figure that applies to every first-time buyer.

Before asking how many times your income a lender may offer, it's often more useful to establish which route — standard mortgage, Shared Ownership, Deposit Unlock, or a guarantor or joint mortgage — actually fits your deposit and income.

  • Deposit size & source
  • Combined income
  • Employed / self-employed mix
  • Existing commitments
  • Credit history
  • Dependants
  • Mortgage term
  • Lender affordability model

A real example, not a generic multiple

A generic income multiple can't tell you whether you'll be assessed as a standard purchase, Shared Ownership, Deposit Unlock, or a joint application combining more than one income type.

Real client example: a couple buying their first home together — one employed, one self-employed — with a combined income of just under £60,000 and a deposit built from a mix of sources. We matched them to a lender comfortable combining both income types, and they were approved for a £320,000 mortgage — just over 5.5 times their combined income — on a £350,000 purchase.

Real, anonymised client example; individual outcomes depend on your circumstances and lender criteria at the time.

No obligation. Actual borrowing depends on your circumstances and lender criteria.

Your first-time buyer journey, step by step

Buying your first home involves a lot more than choosing a mortgage. We stay with you from your very first conversation through to picking up the keys — not just the deposit and lender-matching part.

01 Understand your situation

Deposit, income (employed, self-employed, or both), who's buying with you, and your credit report — plus an Agreement in Principle through our Approved Buyer Certificate process.

02 House-hunt with a clear budget

Armed with your Agreement in Principle, you can view homes and make offers backed by a real, checked number rather than a guess.

03 Application, survey & conveyancing

We manage the full mortgage application and liaise with the surveyor and your solicitor so nothing stalls the purchase.

04 Exchange, completion & moving in

We stay involved right through to exchange, completion, and you picking up the keys.

Reviewed by Tristan Ward

Director, Greywood Financial (FCA: 932346) · Last reviewed 16 September 2026

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First-time buyer mortgage questions

Answers to some of the questions we're asked most by people buying their first home.

What credit score do I need to get a mortgage as a first-time buyer?

There's no single credit score you need, because each lender uses its own scoring system and criteria, but generally a score in the "good" to "excellent" range with no missed payments, defaults, or high credit card balances in the last 12–24 months gives you access to the widest range of deals. As part of our Approved Buyer Certificate process we review your credit report before you apply, flag any issues, and match you to lenders most likely to accept your profile. This reduces the risk of a rejected application showing up on your credit file.

Is it cheaper to rent or buy as a first-time buyer in the UK right now?

Whether renting or buying is cheaper depends on your deposit size, mortgage rate, local property prices, and how long you plan to stay in the property, so there's no single UK-wide answer. In many areas monthly mortgage repayments on a smaller deposit are now similar to or higher than rent, but buying builds equity over time while renting doesn't. We run a personalised affordability and cost comparison for you, factoring in current rates and your target areas, so you can see the real numbers before deciding.

What are the best ways to save for a mortgage deposit as a first-time buyer?

The most effective ways to build a deposit are opening a Lifetime ISA to get the 25% government bonus, setting up an automatic monthly savings transfer, cutting existing debt to improve affordability, and asking family about a gifted deposit or guarantor arrangement if that's an option. Many first-time buyers also budget with a target moving date in mind and track spending closely in the 6–12 months before applying, since lenders review recent bank statements. We help clients build a realistic savings plan alongside our affordability check so you know exactly how much deposit you'll need.

Why do first-time buyer mortgage applications get rejected?

Common reasons first-time buyer mortgage applications are rejected include an insufficient credit score, too much existing debt relative to income, inconsistent or hard-to-verify income (especially if self-employed), a deposit that doesn't meet the lender's minimum, or errors and inconsistencies in the application itself. Undisclosed credit searches, recent missed payments, and unexplained large deposits into your bank account are also frequent triggers. Our Approved Buyer Certificate process is designed to catch these issues before you apply, including a full credit report review and Agreement in Principle, so you apply with confidence rather than risk a rejection.

Can a first-time buyer get a mortgage on a leasehold flat?

Yes, first-time buyers can get a mortgage on a leasehold flat, but lenders look closely at the remaining lease length (generally wanting at least 70–85 years left after your mortgage term ends), ground rent terms, and service charges before approving the loan. Short leases, escalating ground rents, or restrictive clauses can make a property harder to mortgage or require lease extension negotiations first. We check these details with you and your solicitor early on so lease issues don't derail your purchase later in the process.

What is an Agreement in Principle and do I need one before I view homes?

An Agreement in Principle (sometimes called a Mortgage in Principle) is a lender's initial indication of how much they might lend you, based on a soft credit check and the income and deposit details you provide. Most estate agents will expect you to have one before they'll arrange viewings or accept an offer, so it's worth getting one early. We provide this as part of our Approved Buyer Certificate process, alongside a full credit report review.

Can I get a mortgage as a first-time buyer with bad credit?

It can still be possible, depending on the type, amount and age of the credit issue alongside your income, deposit and wider circumstances. Some specialist lenders will consider first-time buyers with historic missed payments, defaults or CCJs, particularly where the deposit is stronger or the issue is explained. A free, no-obligation conversation is a judgement-free way to find out what's realistic before you apply.

Do first-time buyers pay stamp duty?

Most first-time buyers in England and Northern Ireland benefit from Stamp Duty Land Tax (SDLT) relief, which reduces or removes the tax due up to a threshold set by the government — Scotland and Wales run their own separate schemes (Land and Buildings Transaction Tax, and Land Transaction Tax). These thresholds and reliefs change from time to time, so rather than quote a figure that could be out of date by the time you read this, we check the current position for your specific purchase and can point you to the official GOV.UK guidance for the exact numbers.

What documents do I need to apply for a first-time buyer mortgage?

You'll typically need proof of ID, your last three months' bank statements, recent payslips (or two to three years' accounts or tax calculations if you're self-employed), evidence of where your deposit has come from, and details of any existing debts or credit commitments. Exact requirements vary by lender, so as part of our Approved Buyer Certificate process we tell you exactly what to gather before you apply, rather than you finding out mid-application.

Ready to find out what's realistic for you?

Tell us your deposit and income and we'll help you understand which route — standard mortgage, Shared Ownership, Deposit Unlock, or a guarantor/joint mortgage — actually fits.