The hidden costs of buying a house in the UK (and how to budget smartly)

It’s easy to focus on your deposit and mortgage when budgeting for a new home, but they’re just part of the picture. From legal fees to lender charges, there are dozens of smaller costs that can quickly add up.

Understanding these hidden expenses early ensures you’re financially prepared for every stage of your move.

Upfront costs before completion

1. Deposit
Typically, 5–10% of the purchase price. First-time buyers using Help to Buy or Lifetime ISAs can apply these savings toward it.

2. Mortgage arrangement fee
Charged by lenders for setting up your mortgage.
• Range: £500–£1,500
• Often added to your loan but increases total interest paid.

3. Valuation fee
Covers the lender’s assessment of property value.
• Range: £150–£1,500, depending on property size.

4. Survey fee
Independent inspection to assess property condition.
• Range: £400–£1,000, depending on the type of property survey.

Legal and administrative fees

Conveyancing solicitor fees

Professional charges for legal work, plus disbursements (searches, Land Registry, etc.).
• Range: £800–£1,500 for freehold; £1,200–£2,000 for leasehold.

Stamp duty land tax (SDLT)

Paid to HMRC on properties above the current threshold.
• First-time buyers: 0% up to £300,000 (as of 2026).
• Others: 5% for properties £300,001–£500,000.

💡Use HMRC’s calculator for accuracy.

Land Registry fee

Covers official transfer of ownership.
• Range: £20–£910, based on property price.

Moving and post-completion costs

Removal costs
Professional movers cost £400–£1,200 depending on distance and volume.

Buildings insurance
Required from exchange; typically £200–£400 per year.

Utilities and council tax setup
Expect deposits or admin fees when setting up new energy or broadband services.

Furnishing and decorating
Average new homeowners spend £2,000–£4,000 on initial setup.

Ongoing ownership costs

• Mortgage repayments: Your biggest ongoing cost.
• Maintenance and repairs: Budget at least 1% of property value annually.
• Service charges (leasehold): £1,000–£2,500 per year on average.
• Contents insurance: £100–£300 annually.

💡Pro tip: Always keep an emergency fund equal to 3–6 months of household expenses for unexpected repairs or income gaps.

How to budget effectively

1. Use a property purchase checklist. Include every cost from deposit to furniture.
2. Get quotes early. Request conveyancing and survey estimates before offering.
3. Plan for flexibility. Keep at least 10% of your budget free for contingencies.
4. Track with a spreadsheet. Update costs weekly during your move.

Final thoughts

Buying a house isn’t just about saving for the deposit, it’s about anticipating every fee that comes with ownership. By planning ahead, comparing quotes, and working closely with your conveyancer, you’ll stay in control of your budget and avoid nasty surprises before completion.