OwnerCost

United Kingdom · Mortgage

What owning this actually costs each month

25-year repayment mortgage. Stamp duty is cash on day one — first-time, standard, or additional.

Set a shorter payoff to fill the extra payment.

Example with the default inputs. Change any field to recalculate.

Estimated owner cost: £2,051 a month

That is 39.7% of gross monthly income. This is a calculation, not a lender assessment or a recommendation.

Monthly owner cost
£2,051

P&I £1,836 · insurance £35 · service charge £180
Loan £297,500 · LTV 85.0%

Extra £0/mo
£0

Interest saved · payoff 25.0 yrs · 0 months sooner

Cash to close
£60,000

Deposit £52,500 + closing costs £7,500

Day-one cash breakdown
Deposit£52,500
SDLT£7,500
10-year cash comparison

Deposit, closing costs and 120 months of owner cost: £306,097. 120 months of rent starting at £1,600 and rising 3% a year: £220,106.

OwnerCost assumptions: a 10-year period and 3% annual rent growth. This counts cash paid on the regular schedule only — extra principal is not included — and it ignores the equity you build, changes in the home's value, selling costs and what the deposit could earn elsewhere — so it does not say whether buying or renting is better.

OwnerCost sheet

United Kingdom · https://ownercost.com/uk/mortgage/
Price £350,000 · down £52,500 · 5.55% · 25 years
Owner cost £2,051 (P&I £1,836)
Extra £0/mo · paid off in 25.0 years · interest saved £0
Cash to close £60,000
Registry OC-MTG 2.1.0. Planning estimate, not an offer of credit.

What this includes

England and Northern Ireland SDLT from 1 April 2025, including the 5-point additional-dwelling surcharge and the 2-point non-resident surcharge. Scotland (LBTT) and Wales (LTT) use different taxes. The £180 line is a service charge; council tax is not included.

How we calculate

Monthly rate = quoted nominal annual rate ÷ 12 (enter the interest rate, not the APRC). Payment = P·i / (1 − (1 + i)^−n) over n months. Owner cost = repayment + building insurance + service charge. SDLT is in cash to close (see the Stamp page for the bands). The 10-year cash comparison uses two OwnerCost assumptions — a 10-year period and rent rising 3% a year — and counts cash paid on the regular schedule only (the extra-principal input is not included); it is not a buy-or-rent recommendation. Principal and interest are counted only until the loan is repaid (at most 120 months), so a term shorter than 10 years adds no payments after payoff; insurance, property tax and building or owners' fees continue for all 120 months; mortgage insurance stops when its own rule ends it and never after the loan does.

Official sources

Rules checked against these sources on 24–25 September 2026.