Kensington and Chelsea Council Tax Calculator, Bands and Rates: 2026/27
Calculate your exact Kensington and Chelsea council tax bill for 2026/27. The standard total Band D is £1,643.44; properties within garden square areas pay a higher figure reflecting £2.471 million in garden square special expenses — the largest garden-square levy found anywhere in this London borough comparison series. The council froze its core services charge for 2026/27 while simultaneously cutting Council Tax Support from full relief to a 90% maximum — a simultaneous freeze-and-cut combination not found in any other borough covered in this series.
Kensington and Chelsea Council Tax 2026/27: The Largest Garden-Square Levy in This Series, a Frozen Core Budget, and a Cut to CTR in the Same Year
The Royal Borough of Kensington and Chelsea approved its 2026/27 budget at Full Council on 25 February 2026. RBKC's own element rose 4.99% — 2.99% general and 2% Adult Social Care precept — from £1,079.08 to £1,132.93 at Band D. Adding the GLA precept of £510.51, the standard total Band D is £1,643.44. For properties within one of the borough's garden square special expenses areas, a higher total of approximately £1,666.65 applies, reflecting £2.471 million in garden square levies — by far the largest garden-square special expenses programme of any borough covered in this comparison series.
Two decisions made in parallel define what makes RBKC's 2026/27 budget distinctive among London boroughs: the council froze its own core services element (the headline rise comes entirely from the ASC precept and the GLA), while simultaneously voting on 28 January 2026 to reduce maximum Council Tax Support from 100% to 90% for working-age claimants. The combination — protecting council services from cuts while passing a specific additional cost directly to the borough's lowest-income working-age residents — is the most unusual budget pairing found anywhere in this series.
Kensington and Chelsea Council Tax Bands A-H: 2026/27 Rate Table (standard areas)
All eight bands are fixed fractions of the Band D rate, set nationally in ninths, based on your property's estimated market value on 1 April 1991. Properties in garden square areas pay a higher amount — see the garden squares section below for the distinction.
| Band | Standard total | Monthly (10) | Monthly (12) |
|---|---|---|---|
| A | £1,095.63 | £109.56 | £91.30 |
| B | £1,278.23 | £127.82 | £106.52 |
| C | £1,460.84 | £146.08 | £121.74 |
| D | £1,643.44 | £164.34 | £136.95 |
| E | £2,008.65 | £200.87 | £167.39 |
| F | £2,373.85 | £237.39 | £197.82 |
| G | £2,739.07 | £273.91 | £228.26 |
| H | £3,286.88 | £328.69 | £273.91 |
RBKC's garden squares: the largest special expenses programme in this entire series
Kensington and Chelsea contains some of the most extensively maintained private garden squares in the whole of London — Redcliffe Square, Paultons Square, Kensington Square, Ladbroke Square, Pemberton Gardens, and dozens of others, each maintained at high standards as a defining feature of the borough's character. For 2026/27, the total garden square special expenses levy across all areas is £2.471 million, making it the largest garden-square special expenses programme of any borough covered in this series by a very considerable margin: Camden's Garden Squares levy totals £42,154, Islington's Lloyd Square levy is under £1,000 in total, and Greenwich's Gloucester Circus levy is for a single small crescent.
The garden square levies in RBKC operate under Section 30 of the Local Government Finance Act 1992, identical to Camden's mechanism. Each garden square area generates its own separate council tax calculation, and the RBKC budget refers to an "Appendix 10" listing all the specific charges by area and band. The headline figure of £1,156.14 (own element including garden square average) compared to £1,132.93 (without) represents the weighted average effect. Individual properties will have a specific garden square charge on their bill that differs from this average — residents within any of RBKC's garden squares should check the official garden square levy table on rbkc.gov.uk for their specific area's charge.
The CTR cut from 100% to 90%: what actually happened and who it affects
On 28 January 2026, RBKC voted to reduce the maximum Council Tax Reduction from 100% to 90% for working-age claimants — meaning the lowest-earning working-age households in Kensington and Chelsea now face a minimum 10% contribution to their council tax bill rather than full relief. The official budget consultation summary confirms: "People currently receiving 100 per cent relief on their bill will now receive 90 per cent relief."
At the standard Band D rate of £1,643.44, a 10% minimum contribution equals £164.34 a year, or £13.70 a month over 12 payments. At Band E (the band most likely to apply to working-age residents in the borough's private rental market, where larger properties are common), the minimum annual contribution is £200.87. These are not trivial amounts for households on genuinely low incomes. The contrast with Islington (which explicitly maintained 100% maximum CTR and a £28 million commitment) and Hackney (which has a 90% cap with a planned path to zero minimum by 2030) is direct and material. RBKC is moving in the opposite direction from Hackney on the trajectory of the minimum contribution.
Pension-age claimants are unaffected by this change — their CTR entitlement is determined by national rules which set a 100% maximum, and RBKC cannot reduce this by local scheme design.
Core services frozen, inner London funding reduced: how both are true simultaneously
RBKC's own budget communication states that "In April, your council tax increased by 4.99%. For an average Band D home, that is about £1 extra per week." Immediately after, it states: "The Government has fundamentally changed how councils are funded. As a result, inner London boroughs like ours are facing a significant reduction in funding." Both statements are accurate simultaneously because of how the funding formula change works: the 4.99% council tax rise generates more cash for RBKC, but that additional cash is offset by reduced central government grants, leaving total available spending power below what the rise alone might suggest.
RBKC is one of five London boroughs named — alongside the City of London, Westminster, Wandsworth, and Hammersmith and Fulham — in government's own funding projections as having a council tax so far below the national average that central government's model assumes an above-cap rise will be needed at some point to bring it closer to parity. The £55.5 million projected gap by 2029/30 gives this a concrete shape: without an above-cap rise, very large service reductions, or a fundamentally improved central funding settlement, RBKC's own projections confirm a worsening deficit trajectory despite the current low bill.
Grenfell Tower: the decade-long recovery commitment that remains in every Kensington and Chelsea budget
Every Kensington and Chelsea budget since the Grenfell Tower fire of June 2017 has included specific ongoing Grenfell recovery provision. As of the 2026/27 budget, that commitment continues — the council has not completed its obligations and the recovery process has not formally concluded. The £50 million Grenfell Recovery Fund referenced in RBKC's budget communications represents a long-standing, multi-year commitment distinct from the annual council tax calculation, but it is worth noting in any discussion of RBKC's overall financial position, because it represents a specific continuing obligation not shared by any other borough in this series and one that constrains financial flexibility in ways that do not show up in the headline budget gap figure.
Three real-world Kensington and Chelsea scenarios
Typical mistakes Kensington and Chelsea residents make
- Assuming the 4.99% rise adds to RBKC's spending power net of funding changes. RBKC's own communication confirms inner London boroughs face a significant funding reduction alongside the council tax rise, meaning purchasing power has not increased proportionally.
- Not checking whether a garden square levy applies. With £2.471 million in garden square special expenses across the borough, many properties carry an additional charge not reflected in the standard band table. Confirm via the official RBKC garden square levy table.
- Assuming the CTR cut only affects people who "barely" receive support. The change from 100% to 90% maximum means some of the borough's lowest-income residents now have a minimum annual bill of around £110-£200 where previously they paid nothing.
- Assuming RBKC's low bill is permanently sustainable. RBKC is named by government as one of five authorities where an above-cap correction is assumed in future funding projections, with a £55.5 million gap by 2029/30 that does not assume any above-cap rises in its base forecast.
2025/26 versus 2026/27: what actually changed
RBKC's own element rose from £1,079.08 to £1,132.93 — a 4.99% rise, all of which is accounted for by the ASC precept and the council's ability to apply it, since the core services element was frozen. What is materially new for 2026/27 is the CTR reduction from 100% to 90% (voted 28 January 2026, effective immediately), the new 100% second homes premium, the empty property premium threshold halving to one year, and the RBKC's own explicit statement that the funding formula change means inner London boroughs face reduced central government support even as council tax rises.
Decision guide: who should act on this information
Discounts and reductions available in Kensington and Chelsea 2026
Universal Credit and council tax in Kensington and Chelsea
If you receive Universal Credit, it does not automatically reduce your council tax. Use our Universal Credit Calculator to estimate your UC entitlement, then apply for Council Tax Reduction separately. Contact RBKC at counciltax@rbkc.gov.uk or visit the Town Hall, Hornton Street, London W8 7NX, Monday to Friday 9am to 5pm. If you previously received 100% CTR and your bill now shows a charge, this is a direct consequence of the January 2026 change — you will need to arrange payment even if you remain on full UC.
How to challenge your council tax band
RBKC does not decide your band — challenges go to the Valuation Office Agency. Start at gov.uk/challenge-council-tax-band. Given Kensington and Chelsea's property market, where 1991 valuations may significantly underrepresent or overrepresent relative value depending on location and property type, careful research into comparable neighbouring properties is especially important before submitting a challenge. You must continue paying at your current band; a successful challenge is refunded and can be backdated.