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Your first house budget

Looking for your first home? Before you start browsing properties, it's important to understand what you can realistically afford. Creating a clear first-time buyer budget can help you make confident decisions, avoid unnecessary financial pressure, and focus your search on homes that fit your circumstances.

How much you can afford depends on several factors, including your income, savings, monthly commitments, and the type of mortgage available to you.  

By understanding affordability, planning your finances carefully, and preparing for both expected and unexpected costs, you'll be in a stronger position when the time comes to buy. 

Our handy guide explains everything you need to know about budgeting for your first home in the UK, from saving for a deposit to understanding mortgages and managing ongoing costs. 

You can also explore more support and advice through the Persimmon first-time buyers hub. 

First-time buyer budget advice 

Setting a realistic budget is one of the most important steps in the home-buying process. While it's natural to focus on the purchase price of a property, your budget should include much more than the amount you borrow. 

When creating your budget for a first home in the UK, consider: 

  • Your available savings 
  • Your income and regular expenses 
  • Existing debts or credit commitments 
  • Legal and moving costs 
  • Future household expenses 
  • Mortgage affordability 

A well-planned budget can help you understand the type of home that might be achievable for you. 

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Understanding your budget as a first-time buyer: affordability, mortgages and planning

Understanding affordability is more than knowing how much you have saved. It's about assessing what you can comfortably afford, both now and in the future. 

Mortgage lenders will consider a range of factors when deciding how much they're prepared to lend you, but it's also important to decide what feels affordable for your lifestyle and long-term financial goals.

How do I work out my budget for buying my first home?

A good starting point is to review your personal finances. 

Ask yourself: 

  • How much have I saved? 
  • What are my monthly income and expenses? 
  • How much could I comfortably spend on mortgage payments each month? 
  • Do I have any existing loans, finance agreements, or credit card balances? 
  • Have I allowed for ongoing household costs? 

Many first-time buyers focus solely on mortgage affordability, but considering the full picture can help ensure your new home remains affordable over the long term. Your budget should account for both upfront and ongoing expenses.  

  • Upfront costs will include your deposit, mortgage arrangement fees, conveyancing fees, survey and removal costs.  
  • Ongoing costs will include your mortgage repayments, council tax, bills, insurance, subscriptions and any maintenance or renovation work.  

Should I get a mortgage agreement in principle before house hunting? 

Though not essential, it’s highly recommended to get a mortgage agreement in principle (AIP) before you start viewing properties.  

A mortgage agreement in principle explained simply is a statement from a lender indicating how much they may be willing to lend based on the information you provide. It’s not a guarantee of a mortgage, but it can give you a clearer idea of your potential budget and where you should be looking. 

While an agreement in principle can be useful, remember that a lender will still need to carry out full checks before making a formal mortgage offer.

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How can I improve my chances of staying within budget when buying my first home?

Sticking to your budget requires careful planning and realistic expectations. 

Here are some practical ways to stay on track: 

  • Be realistic about your maximum spend - Just because a lender may offer a certain borrowing amount doesn't necessarily mean you should borrow the maximum available.  
  • Build a contingency fund - Keeping some savings aside can help cover unforeseen costs without putting pressure on your finances. 
  • Reduce existing debts where possible - Paying off debts before applying for a mortgage could strengthen your financial position. 
  • Improve your credit profile - Lenders will review your credit history as part of their assessment process. Paying bills on time and managing credit responsibly can improve your chances of securing a mortgage. 
  • Review your spending habits- Looking at what you regularly spend can reveal where you could be saving more towards your deposit and future home costs. 
  • Consider all household expenses – Remember to budget for utilities, council tax, insurance, travel costs, and day-to-day living expenses. 
  • Avoid major financial changes during the application process - Big purchases, new credit applications, or changing jobs during a mortgage application can sometimes affect affordability assessments. 

Find out more

Take a look at our related articles to find out more about understanding your budget and the associated costs of buying your first home.


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Ready to take the next step? 

Explore your options or speak to an expert to start your first time buyer journey with confidence

To learn more about buying your first home, visit our First-Time Buyers hub, explore our helpful guides, or read real customer stories from people who have already taken their first step onto the property ladder. 

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