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First-Time Buyer Mortgage Guide

26 March 202512 min read

Buying your first home is one of the biggest financial decisions you will ever make. The process can feel overwhelming, with unfamiliar jargon, complex decisions, and what can seem like endless paperwork. This guide walks you through everything you need to know as a first-time buyer in the UK — from saving for a deposit and understanding how much you can borrow, to government schemes, mortgage types, and the step-by-step buying process.

5%
Minimum deposit required by most lenders
4.5x
Typical income multiple for borrowing
£425k
Stamp duty threshold for first-time buyers

Buying Your First Home

Becoming a homeowner for the first time is an exciting milestone, but it requires careful planning. Before you start browsing property listings, it is important to get your finances in order. This means understanding how much you can afford, how much you need to save, and what the full costs of buying a home actually are.

The good news is that first-time buyers enjoy several advantages in the UK. You may be eligible for stamp duty relief, government-backed schemes to help you onto the property ladder, and specific mortgage products designed with first-time buyers in mind. Understanding these benefits and how to access them can save you thousands of pounds and make homeownership more achievable than you might think.

The entire process, from making an offer to picking up the keys, typically takes around three to six months. Having a clear plan from the outset will help you navigate each stage with confidence.

How Much Deposit Do You Need?

The deposit is the single biggest upfront cost when buying a home. Most lenders require a minimum deposit of 5% of the purchase price, although having a larger deposit — ideally 10%, 15%, or 20% — will unlock better interest rates and more favourable mortgage terms.

For example, on a property costing £250,000, a 5% deposit would be £12,500, while a 10% deposit would be £25,000. The difference in interest rates between a 90% LTV mortgage and a 95% LTV mortgage can be significant — potentially saving you thousands over the life of the loan.

Tip

Moving from a 95% LTV to a 90% LTV mortgage can reduce your interest rate by 0.3–0.5%. On a £225,000 mortgage over 25 years, that could save you £15–25 per month — over £5,000 across the full term.

There are also ways to boost your deposit through family help, gifted deposits, and government-backed savings schemes. For a detailed look at deposit requirements and saving strategies, read our guide on first-time buyer deposits.

How Much Can You Borrow?

How much a lender will offer you depends primarily on your income and outgoings. Most lenders use an income multiple of 4 to 4.5 times your annual gross salary as a starting point, although some may go higher in certain circumstances. For a joint application, both incomes are typically included.

However, income multiples are only the starting point. Lenders also carry out a detailed affordability assessment, which takes into account your monthly outgoings, existing debts, living expenses, and potential future interest rate rises. This means the amount you can actually borrow may be higher or lower than the simple income multiple suggests.

FactorHelps borrowingReduces borrowing
IncomeHigh stable salary, overtime, bonusesLow or irregular income, short employment history
Deposit10%+ deposit (lower LTV)5% deposit (higher LTV)
Credit historyClean record, long credit historyMissed payments, CCJs, defaults
Existing debtsNo outstanding loans or credit cardsCar finance, student loans, credit card balances
Monthly spendingLow fixed outgoingsHigh childcare, travel, or subscription costs
Can I borrow more with a joint mortgage?+

Yes. With a joint mortgage, lenders typically combine both applicants' incomes when calculating the income multiple. For example, if you earn £30,000 and your partner earns £25,000, a lender using a 4.5x multiple could offer up to £247,500 — compared to £135,000 on your income alone. Both applicants' credit histories and outgoings are assessed, so any issues on either side can affect the amount offered.

Use our affordability calculator to get an estimate of how much you could borrow, or read our detailed guide on how much first-time buyers can borrow.

Government Schemes for First-Time Buyers

The UK government offers several schemes designed to help first-time buyers get onto the property ladder. While some older schemes like Help to Buy have now closed, there are still valuable options available:

  • Shared Ownership: You buy a share of a property (typically 25–75%) and pay rent on the remainder. This reduces the deposit you need and the size of your mortgage. You can buy additional shares over time through a process called “staircasing.”
  • First Homes: A scheme offering new-build homes to first-time buyers at a discount of at least 30% off the market value. The discount is passed on to future buyers, keeping homes affordable in perpetuity.
  • Lifetime ISA: A savings account where the government adds a 25% bonus on savings up to £4,000 per year, giving you up to £1,000 free each year towards your deposit. You must be between 18 and 39 to open one, and the property must cost £450,000 or less.
  • Right to Buy: If you are a council tenant, you may be able to buy your home at a significant discount.
Watch out

If you withdraw money from a Lifetime ISA for anything other than buying your first home or retirement after 60, you will face a 25% withdrawal penalty. That means you would get back less than you originally put in — not just lose the government bonus.

Did you know
First-time buyers pay no stamp duty on properties up to £425,000 — a saving of up to £6,250 compared to home movers.
HMRC, Stamp Duty Land Tax relief

For a comprehensive look at each scheme and eligibility criteria, read our guide to government schemes for first-time buyers.

The Mortgage Application Process

Getting a mortgage as a first-time buyer involves several stages. Understanding the process in advance will help you feel prepared and avoid unnecessary delays.

  1. 01

    Get an Agreement in Principle (AIP)

    A lender confirms how much they are prepared to lend you, subject to full checks. Usually involves a soft credit search and is valid for 60–90 days.

  2. 02

    Find a property and make an offer

    House hunt with your AIP in hand so sellers and agents take you seriously. Once your offer is accepted, you move to the formal stage.

  3. 03

    Submit your full mortgage application

    Provide detailed financial information — proof of income, bank statements, ID, and property details. The lender runs a full credit check and affordability assessment.

  4. 04

    Valuation and survey

    The lender values the property to confirm it is adequate security. Consider commissioning your own homebuyer report or structural survey to flag any issues.

  5. 05

    Receive your formal mortgage offer

    The lender issues a binding commitment to lend you the agreed amount on the specified terms. This is the green light to proceed.

  6. 06

    Conveyancing and exchange of contracts

    Your solicitor handles searches, contract reviews, and fund transfers. At exchange, both parties are legally committed to the sale.

  7. 07

    Completion — collect your keys

    The mortgage funds are released, the purchase completes, and the property is officially yours. Welcome home.

For a detailed walkthrough of each stage, read our guide to the first-time buyer mortgage process.

Stamp Duty Relief for First-Time Buyers

First-time buyers in England and Northern Ireland benefit from stamp duty relief, which can save you thousands of pounds compared to what a home mover would pay. Under the current rules, first-time buyers pay no stamp duty on the first £300,000 of a property purchase, and 5% on the portion between £300,001 and £500,000. If the property costs more than £500,000, the relief does not apply and standard rates are charged.

For example, on a £350,000 property, a first-time buyer would pay £2,500 in stamp duty (5% on £50,000), compared to £7,500 for a home mover. That is a saving of £5,000.

Scotland and Wales have their own land transaction taxes with different rates and thresholds. Use our stamp duty calculator to find out exactly what you would pay.

Types of Mortgage

There are several types of mortgage available, each with its own advantages and considerations. Understanding the differences will help you choose the right product for your situation.

Fixed Rate Mortgages

Your interest rate is fixed for a set period, usually two, three, or five years. This means your monthly payments stay the same regardless of what happens to interest rates in the wider market. Fixed rates are the most popular choice for first-time buyers because they provide certainty and make budgeting easier during a period when managing new costs can feel unfamiliar.

Tracker Mortgages

The interest rate follows the Bank of England base rate by a set margin. For example, a tracker at base rate plus 1% would currently charge you whatever the base rate is, plus 1%. Your payments go up or down as the base rate changes. Tracker mortgages can be cheaper than fixed rates when interest rates are stable or falling, but they carry more risk if rates rise.

Variable Rate Mortgages

The lender sets the rate, which can change at their discretion. This includes the standard variable rate (SVR), which is the rate you typically move onto when a fixed or tracker deal ends. SVRs are usually the most expensive option and are generally best avoided for any extended period.

Offset Mortgages

Your savings are linked to your mortgage and used to reduce the balance on which interest is charged. For example, if you have a £200,000 mortgage and £20,000 in savings, you only pay interest on £180,000. You do not earn interest on your savings, but the tax-free benefit of offsetting can be particularly valuable for higher-rate taxpayers.

Tips for First-Time Buyers

Here are some practical tips to help you on your journey to homeownership:

  • Check and improve your credit score: Start reviewing your credit report at least six months before you plan to apply. Register on the electoral roll, pay off any small debts, and make sure all your bills are paid on time.
  • Save as much deposit as possible: Even a small increase in your deposit percentage can unlock significantly better rates. Use a Lifetime ISA to boost your savings with the government bonus.
  • Budget for all costs, not just the deposit:Solicitor fees, survey costs, moving expenses, furniture, and building insurance can add up to several thousand pounds on top of your deposit.
  • Get an AIP early: An Agreement in Principle shows estate agents and sellers that you are a serious, credible buyer. It also gives you clarity on your budget.
  • Consider using a mortgage broker: A broker can search across the whole market, find deals you might not find on your own, and guide you through the application process. This can be especially valuable for first-time buyers who are unfamiliar with the process.
  • Do not overstretch yourself: Just because a lender will offer you a certain amount does not mean you should borrow the maximum. Consider how your payments would change if interest rates rise, and leave room in your budget for unexpected expenses.
Key Takeaways
  • You can buy with as little as 5% deposit, but 10%+ unlocks significantly better rates.
  • Most lenders offer 4–4.5x your annual income — a joint application combines both salaries.
  • First-time buyers pay zero stamp duty on properties up to £425,000.
  • The Lifetime ISA gives you a free 25% government bonus on savings up to £4,000/year.
  • Budget for the full cost of buying — solicitor fees, surveys, and moving costs add up quickly.

Whether you are just starting to think about buying or you are ready to apply, a specialist broker can help you navigate the process and find the best deal for your circumstances. Visit our residential mortgages page or use our affordability calculator to get started.

Important

Your home may be repossessed if you do not keep up repayments on your mortgage. Think carefully before securing other debts against your home.

Written by the My Mortgage Sorted team

Last updated: 26 March 2025

This guide is for informational purposes only. We are not financial advisers. Always seek independent advice before making financial decisions. Your home may be repossessed if you do not keep up repayments on your mortgage.

Frequently Asked Questions

What counts as a first-time buyer?

In the UK, a first-time buyer is defined as someone who has never owned a freehold or leasehold interest in a residential property, anywhere in the world. This applies to the property you live in, not investment properties. If you are buying jointly and one person has previously owned a property, you may not qualify for first-time buyer benefits such as stamp duty relief.

Can I buy a home with a 5% deposit?

Yes. Several lenders offer 95% LTV mortgages, meaning you only need a 5% deposit. However, the interest rates on these products are typically higher than those available at 90% or 85% LTV. On a £250,000 property, a 5% deposit would be £12,500. If you can save a 10% deposit (£25,000), you may access significantly better rates that could save you thousands over the life of the mortgage.

How long does it take to buy a first home?

From having your offer accepted to receiving the keys, the process typically takes three to six months. This includes the mortgage application (two to four weeks for a formal offer), conveyancing and searches (four to twelve weeks), and exchange and completion (one to two weeks). Delays can occur due to chains, survey issues, or slow searches, so it is important to be patient and responsive with documentation.

Do first-time buyers need a solicitor?

Yes. You will need a solicitor or licensed conveyancer to handle the legal aspects of buying a property. They carry out searches, review the contract, handle the transfer of funds, and register the property in your name. Conveyancing fees for a first-time buyer typically range from £800 to £1,500 plus disbursements (search fees, Land Registry fees, etc.).

Should I get a fixed or variable rate mortgage?

Most first-time buyers choose a fixed rate mortgage because it provides certainty over monthly payments for a set period (usually two to five years). This makes budgeting easier when you are adjusting to the costs of homeownership. A variable or tracker rate may be cheaper initially but carries the risk of payments increasing if interest rates rise. A broker can help you weigh up the options based on your circumstances and risk appetite.

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