Home running costs calculator
Annual running costs from the council tax band and EPC — before you buy.
Illustrative only: energy figures are band-typical for an average 3-bed and swing with usage and prices; council tax uses the England Band D average (~£2,280 for 2025/26) scaled by the statutory ninths — your council will differ. Excludes water, broadband, insurance and maintenance.
Two public facts predict most of a home’s running costs before you ever get the keys: its council tax band and its EPC rating. Council tax is set by band and by council — the England average Band D bill is about £2,280 for 2025/26, with Band A around two-thirds of that and Band H double it, and the same band varying by hundreds of pounds between neighbouring councils. The EPC (free to look up for any address) estimates energy costs for that specific building: at recent prices a compact band C home might run £1,300–£1,600 a year, while a large band E house can pass £3,000.
The rest of the stack is steadier: water (£450–£550 a year typical, less with a meter in a small household), buildings and contents insurance (£300–£450 for most homes, more where flood or subsidence history bites), broadband, and — the one that isn’t optional even though it feels it — maintenance, sensibly reserved at around 1% of the property’s value a year. Leasehold flats replace some maintenance with a service charge, commonly £1,500–£4,000+ a year, which is a running cost as fixed as any bill.
The practical use of this calculator is comparing candidate homes on cost-to-run, not just cost-to-buy. Two similar houses can differ by £1,500+ a year through council tax band and EPC alone — a difference that never amortises away and that you can check in ten minutes from the listing. Both facts are public, per-address, and routinely more informative than anything said at the viewing.
Common questions
What are the average running costs of a house in the UK?
For a typical three-bed: council tax around £2,280 (England Band D average, 2025/26), energy £1,700–£2,000 at recent prices, water £450–£550, insurance £300–£450, broadband £300–£400, plus a maintenance reserve near 1% of value — roughly £7,000–£8,500 a year all told for a £300,000 home. Band, EPC and size swing it substantially.
How do I check a home’s council tax band and EPC before buying?
Both are free and public: council tax bands on the government’s VOA search, EPCs on the national EPC register — searchable by address, no login. The listing usually states both, but check the source; an expired or missing EPC on an older home is itself information.
How much difference does the EPC band make in pounds?
The certificate itself gives per-property estimates, but as a guide: each band step is commonly worth £300–£600 a year on a typical home at recent prices, so C-to-E can mean £1,000+ annually. The EPC also lists costed improvements — the payback calculator turns those into years.
Can I get a council tax band changed?
You can challenge it via the VOA if you have evidence the band is wrong — typically comparisons with identical neighbouring homes. Some succeed and are backdated; be aware review can theoretically move a band up as well as down. Single occupants get 25% off regardless of band.
Numbers are half the story. Check the home itself.
One search pulls the official record on any address in England & Wales — value, flood risk, schools, noise and more, scored 0–100.