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Buying your first home is an exciting milestone, but it can also feel overwhelming—especially when it comes to budgeting. One of the most common questions first-time buyers in the UK ask is: How much should I spend on my first home? This guide will help you determine a realistic budget while keeping your financial health intact.
Before browsing listings or contacting estate agents, take a close look at your current financial situation. Ask yourself:
Mortgage lenders in the UK typically recommend that your monthly housing costs (including mortgage, council tax, and insurance) not exceed 28% of your gross monthly income. This aligns with the 28/36 rule, which also suggests your total debt payments should not be more than 36% of your gross income.
Here’s a simplified formula to help estimate how much house you can afford:
Home Affordability = Annual Income x 2.5 to 4.5
So if your household earns £80,000 a year, you might aim for a home priced between £200,000 and £360,000. This range can shift based on your credit score, existing debt, and deposit size.
First-time buyers often overlook additional costs beyond the purchase price of the home. Be sure to factor in:

While it’s possible to buy a home with as little as 5% deposit (through schemes like Help to Buy or Shared Ownership), a 10-20% deposit will help you access better mortgage rates and reduce your monthly payments.
For a £250,000 home:
Mortgage calculators can be invaluable in testing different scenarios. Many allow you to factor in insurance, council tax, and interest rates to see a full picture of what you’ll actually pay monthly.
A mortgage agreement in principle (AIP) not only helps you understand your price range but also strengthens your offer in a competitive market. It gives you a clear idea of the loan amount you qualify for based on your income, assets, and credit score.

Just because you’re approved for a certain mortgage amount doesn’t mean you should spend to the limit. Leave room for life changes, emergencies, and future financial goals like travel, education, or retirement.
Your first home is a big investment, but it doesn’t have to break the bank. By carefully evaluating your finances, understanding the true costs of homeownership, and staying within a comfortable budget, you can make a smart, confident decision.
Need help crunching the numbers? Speak with a mortgage adviser or financial planner to get personalised advice tailored to your situation.
Disclaimer: The information in this article is provided for general informational purposes only and should not be construed as financial advice. Always seek the guidance of a qualified financial adviser or mortgage professional with any questions you may have regarding your personal financial situation or mortgage options.
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