The short answer
What is a first-time buyer mortgage?
A first-time buyer mortgage is a mortgage used to buy your first home. The right starting point is a budget that covers the deposit, separate purchase costs, monthly commitments and a sensible cash reserve. A lender will assess income, expenditure, credit information and the property before making a formal offer.13
An agreement in principle is an early indication, not guaranteed finance. The purchase also involves legal work and property checks; a lender valuation is not the same as a survey chosen to help the buyer understand the home's condition.2
Property tax and buying rules differ across the UK. Check the official service for the nation where the property is located and ask your conveyancer to confirm the position before relying on a figure.456
Step 1 · Build the budget
Plan for more than the deposit
Start with the cash available, then separate the deposit from the costs of buying and the money you want to keep back. This gives you a more useful purchase range than treating every pound as deposit.
The contribution towards the purchase price and the starting point for loan-to-value.
Legal work, survey, moving costs and any property tax or mortgage charges.
Money retained for early repairs, furnishing and unexpected household costs.
Before viewing seriously
Turn the numbers into a practical search range
A useful budget connects the mortgage, property and life around the purchase.- Test the monthly payment alongside ownership costs.
- Keep purchase costs separate from the deposit.
- Retain enough flexibility for the property and the move.
Step 2 · Test your position
When this route may be worth exploring
Buying can be appropriate when the complete cost is sustainable and the home fits your likely needs, not simply because an initial borrowing estimate reaches the asking price.
- Your deposit and purchase costs have a clear, evidenced source.
- The mortgage and ongoing ownership costs fit a resilient household budget.
- You intend to occupy the property as your home and understand its tenure and restrictions.
- You are prepared for lender underwriting, valuation, survey and legal checks.
Step 3 · Prepare the evidence
Information to gather early
Clear, current information makes it easier to test the case properly. You can still contact us if something is missing. We will explain what is needed and why.
- Photo identification and proof of address
- Recent payslips, accounts or other acceptable income evidence
- Recent bank statements and details of credit commitments
- Proof and source of deposit, including any gifted deposit
- Property details once an offer is accepted
Step 4 · Progress the purchase
From an initial plan to receiving the keys
You do not need every answer before getting advice. Starting early gives an adviser time to identify gaps, explain lender requirements and help you approach an offer with a clearer plan.
- 01
Prepare and get an initial decision
Review the budget and evidence, then explore an agreement in principle where appropriate. It is an indication rather than guaranteed finance.
- 02
Find a property and agree the purchase
View within the planned range, ask questions about the property and make an offer when the price and circumstances make sense.
- 03
Apply and complete the checks
The lender assesses the application and property while your conveyancer and chosen survey progress their separate checks.
- 04
Exchange, prepare and complete
Once the mortgage, legal position and practical arrangements are ready, contracts can be exchanged and a completion date agreed.
- 1 Evidence and affordability reviewed
- 2 Application and lender valuation
- 3 Mortgage offer issued
- 1 Offer accepted and solicitor instructed
- 2 Survey, searches and legal enquiries
- 3 Ready to exchange contracts
Step 5 · Check the property and the mortgage
The details that still shape the outcome
No single figure decides the outcome. The deposit, household budget, property and buying costs need to work together.
Deposit and loan-to-value
The cash contribution affects the amount borrowed, but product choice also depends on the applicant and property.
Affordable monthly cost
Lenders assess income and expenditure; your own budget should also include the continuing cost of ownership.
Property checks
The lender must accept the property, while a buyer's survey can examine condition beyond the lender's valuation.
Nation-specific rules
Property tax, reliefs and parts of the buying process differ between England, Northern Ireland, Scotland and Wales.
Illustrative planning example
Keep the deposit separate from the rest of the purchase
A buyer is considering a £250,000 home and has £32,000 in accessible savings. Before selecting a deposit, they list legal work, survey, moving and any applicable property-tax costs, then decide what emergency cash to retain. The remaining amount is the maximum deposit available for this purchase.
- 1Ask the adviser to compare mortgages at the resulting loan-to-value.
- 2Ask the conveyancer to confirm the tax and legal position.
- 3Rework the purchase price if the monthly payment or retained cash feels uncomfortable.
Alternatives
Other routes to compare
Wait and strengthen the plan
Continue renting or living in your current arrangement while increasing the deposit, reserve or income evidence and reducing commitments.
Adjust the property budget
A lower price, different property or different area can reduce both borrowing and ongoing ownership costs.
Check official ownership schemes
Depending on location and eligibility, explore current government schemes and compare mortgage, rent, service charges and resale restrictions.
FAQs
First-time buyer questions
There is no single deposit that applies to every lender and property. The deposit determines loan-to-value, while affordability, credit, property and lender criteria also affect the mortgages available. Keep purchase costs and a cash reserve separate.
Sources
Sources used for this guide
- 1First-time home buyer guide
MoneyHelper · Deposit, loan-to-value, first-home budgeting and buying-cost context.
- 2How to buy a home
GOV.UK · The buying process and distinction between a mortgage valuation and buyer's survey.
- 3MCOB 11.6: Responsible lending and financing
Financial Conduct Authority · Mortgage lender affordability assessment and expenditure considerations.
- 4Stamp Duty Land Tax: reliefs and exemptions
GOV.UK · Current SDLT relief guidance for England and Northern Ireland.
- 5LBTT first-time buyer relief
Revenue Scotland · Current first-time buyer LBTT relief rules in Scotland.
- 6Land Transaction Tax: overview
Welsh Revenue Authority · The Welsh property-tax regime and current official guidance route.
Reviewed by Charles Frank Finance Limited on 31 July 2026. Lender criteria can change independently of this guide.