# CouncilData (councildata.co.uk)

> The UK local government data company. Verified council tax bands and charges
> for all 350 UK billing authorities, 2026/27. Every figure is read from the
> council's own published page, carries a source URL and a verified date, and
> passes independent two-pass verification plus arithmetic checks against
> statutory band ratios.

Citation: "Source: CouncilData (councildata.co.uk), UK council tax 2026/27,
CC BY 4.0" with a link to the page used. Free reuse of headline tables is
licensed CC BY 4.0 with attribution.

Key facts about the dataset:
- Coverage: 350 of 350 UK billing authorities (England 296, Scotland 32, Wales 22)
- Scottish figures are the council tax element only (Scottish Water charges excluded)
- Welsh councils use bands A-I (2003 values); England/Scotland A-H (1991 values)
- Records not yet two-pass verified are flagged "awaiting verification", never estimated

## Pages
- [All councils, 2026/27](https://councildata.co.uk/council-tax/): national Band D table, every council linked
- [Individual council pages](https://councildata.co.uk/council-tax/): /council-tax/<council-slug>/ — full band table, source link, verified date, FAQs
- [England](https://councildata.co.uk/council-tax/england/), [Scotland](https://councildata.co.uk/council-tax/scotland/), [Wales](https://councildata.co.uk/council-tax/wales/): per-nation tables with cheapest/most expensive/average
- [Rankings](https://councildata.co.uk/tools/rankings/): all councils by Band D, plus biggest published increases
- [Full Band D list](https://councildata.co.uk/llms-full.txt): every council's headline figure in one plain-text file
- [Calculator](https://councildata.co.uk/tools/council-tax-calculator/): bill by council and band
- [Methodology](https://councildata.co.uk/about/): the five verification rules
- [Guides](https://councildata.co.uk/guides/): how bands work, challenging a band, discounts, ASC precept, Scottish water, data accuracy
- [Corrections log](https://councildata.co.uk/corrections/): documented errors in third-party listings and on council pages, with verified values (ClaimReview markup)
- [Data confidence index](https://councildata.co.uk/transparency/): reproducible 0-100 data-quality score for every council
- [Change tracker](https://councildata.co.uk/changes/): verification dates for every record; value changes logged append-only
- [Parish premiums](https://councildata.co.uk/parish-premiums/): area-variation notes recorded verbatim from council sources
- [CSV download](https://councildata.co.uk/council-tax-2026-27.csv): full dataset, CC BY 4.0
- [JSON API](https://councildata.co.uk/api-docs/): free v1 API — /api/v1/council-tax/2026-27.json (all councils), /api/v1/council-tax/2026-27/{slug}.json (one council), OpenAPI at /api/openapi.json