Mortgages & Home Money guide
How to budget for Stamp Duty and other home-buying costs
Build a completion-day budget for Stamp Duty, legal work, surveys, mortgage fees and moving costs without using your whole deposit twice.
At a glance
Make sense of this decision
- Useful when
- You are estimating cash needed for a home purchase.
- Watch out for
- Buyer status and the UK nation can change property tax.
- Next step
- Confirm the transaction tax and completion costs before exchange.
The deposit is only one part of the cash needed to buy a home. Tax, conveyancing, searches, surveys, mortgage fees, removals and immediate repairs can fall due at different points. Keeping those amounts separate prevents the same savings being counted once as a deposit and again as money for completion costs.
Check which property tax applies
Stamp Duty Land Tax applies to relevant purchases in England and Northern Ireland. Scotland uses Land and Buildings Transaction Tax, while Wales uses Land Transaction Tax. The rules, bands and reliefs are different, so choose the tax for the property’s location rather than the buyer’s current address.
For an England or Northern Ireland residential purchase, use the Stamp Duty calculator as a planning estimate. Then confirm the transaction with the conveyancer and HMRC guidance, particularly for shared ownership, mixed-use property, trusts, companies, multiple dwellings or non-UK residence.
Use the right buyer status
First-time buyer relief has eligibility conditions; it is not based simply on whether this is your first mortgage. Additional-property rates can depend on interests in residential property held anywhere in the world and on the position of a spouse or civil partner. Replacing a main residence can involve timing and refund rules.
Tell the conveyancer about every relevant owner and property interest early. A calculator can apply the option selected, but it cannot investigate ownership or decide whether relief is due.
Build a cost schedule
List when each amount is likely to be paid: mortgage booking or arrangement fees, identity checks, searches, legal costs, survey, valuation, exchange deposit, completion balance, property tax, removals and initial insurance. Mark estimates that can change and add a contingency for urgent work after moving.
Some fees may be refundable if the purchase fails and others may not be. Ask for written quotes that state VAT and likely disbursements instead of relying on a single headline legal fee.
Keep fees separate from the deposit
Suppose savings total £32,000 and the planned tax and other buying costs total £7,000. The deposit budget is £25,000, not £32,000. Enter the actual deposit in the LTV calculator. If a mortgage product fee will be added to the loan, include it when checking the final balance and repayment.
Use the Mortgage Repayment calculator to see the effect of borrowing a fee, but compare that estimate with paying upfront while retaining an adequate emergency reserve.
Plan for the completion deadline
HMRC says an SDLT return and payment are normally due within 14 days of completion; a solicitor or conveyancer will usually submit and pay on the buyer’s behalf, then include the amount in the completion statement. Confirm who is responsible and when cleared funds must reach the client account.
Fraudsters target property transactions. Verify bank details using a trusted channel agreed with the conveyancer and be suspicious of an emailed change to payment instructions.
Recheck before exchange
- Confirm the price, property location and buyer status.
- Obtain an updated tax estimate and conveyancer’s completion statement.
- Keep deposit, fees and emergency savings on separate lines.
- Check which mortgage fees are paid upfront or added to the loan.
- Allow for removals, insurance and essential first repairs.
- Do not commit money needed for an unresolved survey issue.
Limits and official guidance
Tax rules can change and unusual transactions need professional review. Check the live GOV.UK Stamp Duty Land Tax guidance, including current thresholds, reliefs and filing rules. MoneyHelper’s buying and moving costs guide can help identify non-tax costs. Your conveyancer is responsible for advising on the actual transaction.
For the deposit side of your purchase budget, see how borrowing and the property value determine LTV in mortgage LTV and deposit guide.
An individual financial review date has not been recorded for this guide. Our editorial policy
Put this into practice