The First New Bill Has Landed: A London Occupier's 2026 Rates Revaluation Action Plan
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The 2026 business rates revaluation has moved from preparation to practice. The new rating list took effect on 1 April 2026, and the first bills are now with London occupiers. For smaller firms in offices, studios, workshops and mixed-use premises, the task is to read the bill properly, verify the valuation record and decide whether there is a case to challenge. It is not to assume that every London firm will see a rates cut, or that every increase is correct.
Read the bill in layers
A business rates bill is not a single number. It combines the rateable value, the multipliers, any reliefs, transitional adjustments and the instalment schedule. Compare the new bill with the previous one, but separate the rateable value change from the change in the amount payable. A higher bill may reflect the loss of a relief or the end of a transitional arrangement rather than a higher rateable value. A lower rateable value may not produce a lower bill if reliefs or multipliers have changed.
Check the property description, the effective date and the billing authority. Errors in floor area, use or parking can persist across lists. The first bill is a prompt to check, not a final verdict.
Check the valuation record
The rateable value is based on the valuation date of 1 April 2024. The Valuation Office Agency record should be checked against the property as occupied. Confirm the floor areas, the use, any ancillary space, parking and plant. Compare the record with the lease, plans and service charge information. If the firm has altered the premises, or if the description does not match the space actually occupied, gather the evidence before raising a challenge.
Not every difference justifies a challenge. A firm that simply dislikes the new level should not confuse that with a valuation error. The question is whether the record is accurate and whether the valuation basis has been applied correctly. Complex cases may need a rating surveyor, but a straightforward check can be done in-house.
Transitional relief and other reliefs
Transitional relief is intended to phase the effect of valuation changes, but it does not apply to every property in the same way. Check with the billing authority whether a transitional arrangement applies and how it is reflected in the bill. Also check small business rates relief, retail, hospitality and leisure relief where relevant, empty property relief and any local discretionary relief. Reliefs can be time-limited and condition-dependent. Do not assume that a relief shown last year will continue automatically.
For London occupiers, the practical point is that the bill should be read alongside the relief position. A firm may have a lower rateable value but a higher bill because a relief has fallen away. That is a budgeting issue as much as a valuation issue.
Build a rates evidence file
Whether or not the firm challenges, it should keep a rates file. Include the lease, plans, rent and rent review correspondence, service charge information, photographs, details of alterations and any correspondence with the valuation office or council. Record the dates of occupation and any periods of vacancy. If a challenge is made, the evidence will be needed. If it is not, the file provides a baseline for the next review.
Evidence should be contemporaneous and specific. General assertions about London rents are less useful than details of the property, the lease terms and comparable space. The aim is to show what the property is and how it should be valued, not simply that the bill feels high.
Appeal timing: do not wait for the end of the list
The business rates challenge process in England runs through check, challenge and appeal stages. The statutory timetable is strict, and the first bill is the point at which many occupiers discover an issue. Diarise the relevant dates and keep paying the bill while a challenge is considered unless advised otherwise. A challenge does not automatically suspend payment.
If the valuation record is wrong, raise it promptly with evidence. If the challenge is not resolved, the appeal route to the Valuation Tribunal has its own deadline. Waiting until the end of the rating list can mean losing the opportunity to correct an error for the whole period.
Budget for the new bill, not the old assumption
Rates are a fixed cost that many smaller firms treat as background noise until the bill arrives. The 2026 revaluation is a good moment to update the forecast. Check the instalment schedule, the relief position and the cash flow effect. If the rateable value has fallen, confirm whether a refund or credit is due. If it has risen, check whether transitional relief softens the impact and plan for the period after it ends.
London's commercial property market is varied, and the revaluation will produce different outcomes across boroughs and property types. The sensible action plan is unglamorous: read the bill, check the record, confirm the reliefs, gather the evidence and respect the timetable. That is how an occupier avoids both an unnecessary overpayment and a missed challenge.
