Carmarthenshire council tax
Carmarthenshire council tax costs £2,351.20 each year in 2026/27 for a Band D property, up 5.3% compared with £2,232.06 for 2025/26.
- Band D, 2026-27
- £2,351.20
- Band A, the lowest of the bands
- £1,567.47
- difference from 2025/26
- +5.3%
Carmarthenshire council tax by band
Annual bills for 2026/27, taken from the official council tax data. Every band pays a fixed proportion of the Band D total.
Carmarthenshire in comparison
Band D in Carmarthenshire costs £68 more than £2,283, the Wales average.
In Wales, Carmarthenshire ranks 12th lowest of 22 councils for Band D bills.
These averages are drawn from the government figures for 2026/27.
Councils where Band D bills are close to this one:
- Rhondda Cynon Taf £2,289
- Wrexham £2,309
- Denbighshire £2,339
- Powys £2,352
- Flintshire £2,376
- Monmouthshire £2,417
Unsure of your home's band?
Look up your address with the Valuation Office Agency band search, then use the council tax band checker to work out the bill. If the band seems wrong, see how a council tax band appeal works.