Business Rates revaluation 2026
All rateable values for business rates were reassessed in the 2026 revaluation and are effective from 1 April 2026.
Revaluations take place so that the value attached to your business property more accurately reflects the current market value. Revaluations are not designed to raise extra money for the government.
There are relief schemes to lessen the impact of rate rises from the revaluation.
Transitional relief and transitional relief supplement
From the 1 April 2026 the government has put into place a new transitional relief scheme to support ratepayers facing large bill increases as a result of at the revaluation.
How much your bill can change by from one year to the next depends on both:
- your property’s rateable value
- whether your bill is increasing or decreasing as a result of revaluation
- you stop getting transitional relief when your bill reaches the full amount set by a revaluation
Your business rates will change by no more than the percentage caps listed in the tables from one year to the next.
If your bill is increasing from 1 April 2026 to 31 March 2029.
| Rateable value | 2026 to 2027 | 2027 to 2028 | 2028 to 2029 |
|---|---|---|---|
| Up to £20,000 (£28,000 in London) | 5% | 10% plus inflation | 25% plus inflation |
| £20,001 (£28,001 in London) to £100,000 | 15% | 25% plus inflation | 40% plus inflation |
| Over £100,000 | 30% | 25% plus inflation | 25% plus inflation |
Your bill will be adjusted automatically if you’re eligible.
If you don’t receive transitional relief or supporting small business relief, there will be a supplement of 1p per £ of rateable value added to your bill for 2026/27 only. This is to help fund the costs of the transitional relief scheme.
Read more about transitional relief on Gov.UK.
Supporting small business relief
You will receive supporting small business relief in 2026/27 if your bill increased because of the 2026 revaluation and you lost some or all your:
- small business rate relief
- 40% retail, hospitality and leisure relief
- 2023 supporting small business relief
If you’re eligible, your bill will go up by no more than £800 a year or the transitional relief cap (whichever is greater).
Your bill will be adjusted automatically.
If you were receiving 2023 supporting small business relief, you won’t be entitled to supporting small business relief from 1 April 2027.
The relief will continue if the ratepayer changes but not if the property becomes unoccupied or is occupied by a charity or community amateur sports club.
Any supporting small business relief would be subject to subsidy control. If we have applied the relief and you do not wish to receive it, you can choose to cancel your relief, please contact the Business Rates Team at businessrates@lambeth.gov.uk.