CouncilTaxCostUK
2026/27 Official MHCLG Billing Data
Postcode Head-to-Head Council Tax Comparison

CF10 vs SA1 Council Tax Comparison

Evaluate annual Band A through H council tax variations, single person discount savings, and authority precept differences between any two UK postcode districts.

Moving from SA1 to CF10 saves £82.60 / year on Band D

Cardiff (Cardiff Council) is ranked #2 in Wales, while Swansea (City and County of Swansea Council) is ranked #1 in Wales.

CF10Rank #2 in Wales
Cardiff
Cardiff Council
Band D Annual:£1965.80
Monthly 10-Mo Direct Debit:£196.58/mo
Single Person Band D (-25%):£1474.35/yr
Typical Household Bill:£1,529 (Band B)
SA1Rank #1 in Wales
Swansea
City and County of Swansea Council
Band D Annual:£2048.40
Monthly 10-Mo Direct Debit:£204.84/mo
Single Person Band D (-25%):£1536.30/yr
Typical Household Bill:£1,593 (Band B)

Band-by-Band Annual Difference: CF10 vs SA1

Exact cost variance per property band when moving between Cardiff (CF10) and Swansea (SA1).

BandCF10 Annual (£)SA1 Annual (£)Annual DifferenceSingle Person Diff
Band A£1310.53£1365.60-CF10 £55.07/yr-£41.30/yr
Band B£1528.96£1593.20-CF10 £64.24/yr-£48.18/yr
Band C£1747.38£1820.80-CF10 £73.42/yr-£55.06/yr
Band D£1965.80£2048.40-CF10 £82.60/yr-£61.95/yr
Band E£2402.64£2503.60-CF10 £100.96/yr-£75.72/yr
Band F£2839.49£2958.80-CF10 £119.31/yr-£89.48/yr
Band G£3276.33£3414.00-CF10 £137.67/yr-£103.25/yr
Band H£3931.60£4096.80-CF10 £165.20/yr-£123.90/yr

Precept Authority Structure (Band D)

Where your council tax payment is allocated in each local authority.

CF10 (Cardiff)

Unitary Authority (Wales): Levied across Cardiff Council, Adult Social Care, Police, Fire, and parish precepts where applicable.

Exact itemised splits are published on Cardiff Council's official 2026/27 council tax demand notice.

Band D Baseline:£1965.80
SA1 (Swansea)

Unitary Authority (Wales): Levied across City and County of Swansea Council, Adult Social Care, Police, Fire, and parish precepts where applicable.

Exact itemised splits are published on City and County of Swansea Council's official 2026/27 council tax demand notice.

Band D Baseline:£2048.40

Financial Differential: CF10 vs SA1

Annual Band D Benchmark Gap
£82.60/year

Residents in CF10 (Cardiff) pay £82.60 less per year for Band D properties than households in SA1 (Swansea).

Monthly 10-Instalment Impact
£8.26/month

Over standard 10 monthly direct debit instalments (April to January), this represents a difference of £8.26 per instalment for an average Band D dwelling.

Council tax rates are established annually by local authorities to fund frontline services, including adult social care, children’s services, highways, waste collection, and police and fire authorities. In Cardiff (CF10), the 2026/27 Band D rate is set at £1965.80 (ranking #2 of 22 in Wales), while in Swansea (SA1), the rate is £2048.40 (ranking #1 of 22 in Wales).

Year-on-year, Cardiff adjusted its Council Tax requirement by +4.51% (£84.83 on Band D), compared to a change of +4.83% (£94.38) in Swansea.

Housing Stock & 1991 VOA Banding Profile

CF10 (Cardiff)Band Band B
  • Dominant Property Band:Band Band B (Modelled median)
  • Typical Outcode Bill:£1528.96 (Modelled estimate)
  • Valuation Base Date:1 April 2003
  • Billing Authority:Cardiff
SA1 (Swansea)Band Band B
  • Dominant Property Band:Band Band B (Modelled median)
  • Typical Outcode Bill:£1593.20 (Modelled estimate)
  • Valuation Base Date:1 April 2003
  • Billing Authority:Swansea
Valuation Base Date Notice: Council tax bands in England and Scotland remain tethered to hypothetical market values as of 1 April 1991 (in Wales, 1 April 2003). If neighbouring identical properties in your street are placed in a lower band, you can submit a formal proposal to the Valuation Office Agency (VOA) or SAA in Scotland for a statutory banding review.
Property Taxation Audit • CF10
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Check If You Are Overpaying Council Tax in Cardiff

Up to 400,000 UK homes are estimated to be in the wrong Council Tax band due to rushed 1991 second-gear valuations. Find out if your property qualifies for a formal band reduction challenge, backdated refunds, or single-person relief.

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