Council Tax Band API UK — Look Up Any Property by UPRN
Instant council tax band lookups via REST API. Pass a UPRN, address, or postcode and receive the council tax band (A–H), annual charge, and local authority — sourced from the HMRC Valuation Office Agency. Embedded in property portals, conveyancing platforms, and mortgage calculators across the UK.
What's in the API
Council tax band (A–H)
The current council tax band for any UK residential property. Bands A–H reflect 1991 assessed property values.
Local authority
The responsible local authority for council tax collection. Useful for calculating actual annual charges by area.
Postcode-level lookup
Look up by UPRN, full address, or postcode. Postcode lookups return all properties in the postcode with their individual bands.
Sample response
{
"uprn": "100023336956",
"address": "14 Victoria Road, Bristol BS8 4ES",
"council_tax_band": "E",
"local_authority": "Bristol City Council",
"local_authority_code": "E06000023",
"effective_date": "1993-04-01"
}Pricing
Free
£0
100 calls/mo
Starter
£49
2,000 calls/mo
Growth
£149
10,000 calls/mo
Pro
£349
50,000 calls/mo
FAQ
Does the API return the actual annual charge?
The API returns the band and local authority. Annual charges vary by local authority and can change each April — we recommend linking to the council's published rate rather than storing charges.
Is Scotland included?
Scotland uses a different council tax system administered by COSLA. Coverage for Scottish properties is partial — England and Wales have full coverage.
What if a property is exempt?
Exempt properties (e.g. purpose-built student halls, some HMOs) may return no band. The API returns null band with an exemption flag where known.