England will introduce a high‑value business rates multiplier from 1 April 2026, adding 2.8p in the pound to liabilities for properties with a rateable value of £500,000 or more. The regulations were made by HM Treasury on 5 February 2026, approved by the House of Commons, and published on legislation.gov.uk.

The instrument extends to England and Wales but applies in relation to England only. It was signed by Gen Kitchen and Christian Wakeford as two of the Lords Commissioners of His Majesty’s Treasury, according to the text of the statutory instrument on legislation.gov.uk.

Technically, the measure sets the high‑value multiplier at B + 0.028 for financial years beginning on or after 1 April 2026. “B” is the base non‑domestic rating multiplier referenced in Schedules 4ZA, 4ZB and 5A of the Local Government Finance Act 1988, with a different definition where the billing authority is a special authority as defined in the Act.

For finance teams, the working translation is straightforward: add 2.8p to the pound‑per‑rateable‑value figure that already applies to your property. In cash terms, that means an extra 2.8% of the site’s rateable value each year before any reliefs or supplements are taken into account.

This is a targeted change aimed at the largest hereditaments. Large‑format supermarkets and department stores, regional warehouses and fulfilment centres, prime office floors, major hotels and other high‑value commercial sites are the most likely to sit above the £500,000 threshold. Smaller units remain outside scope unless their valuation crosses that line.

Illustrative maths helps sizing the impact. A supermarket with a £1.5m rateable value would see roughly £42,000 added to the annual bill. A regional distribution centre at £900,000 adds about £25,200. A city‑centre office floor at £650,000 adds around £18,200. These figures are before any reliefs, supplements or transitional arrangements applied by the billing authority.

Leases matter. Many full‑repairing‑and‑insuring (FRI) arrangements pass business rates directly to occupiers, so the 2.8p top‑up becomes a cash cost from 1 April 2026. Portfolio CFOs should map which sites clear the £500,000 threshold and build the incremental charge into FY2026/27 occupancy budgets and quarterly accruals.

The £500,000 cut‑off creates a cliff‑edge. Properties assessed just below the threshold avoid the top‑up; those just above pay it in full. That makes the accuracy of the rating list critical. Where valuations appear out of line with local comparables or property particulars, engage your ratings adviser promptly to verify data and, where justified, consider a challenge through the established process.

The legal backdrop is the Non‑Domestic Rating (Multipliers and Private Schools) Act 2025, which inserted new powers allowing additional rating multipliers. HM Treasury states that no full impact assessment has been produced as the measure amends an existing local tax regime, a point flagged in the explanatory note on legislation.gov.uk.

Multi‑site operators can estimate exposure quickly. As a rule of thumb, the extra annual charge equals 0.028 multiplied by the rateable value for every eligible site. A chain with 50 large stores at a median £800,000 valuation is looking at roughly £1.12m a year in additional rates before reliefs. For logistics contracts and service‑charge budgets, expect knock‑on adjustments during 2026.

Operationally, watch for billing authority guidance and 2026/27 demands landing in the spring. Finance directors may want to phase monthly prepayments from April to smooth cash flow, and ensure internal hurdle rates and store‑level P&Ls reflect the higher occupancy cost where applicable.

Bottom line: this is not a blanket rise in business rates. It is a targeted 2.8p‑in‑the‑pound top‑up for England’s highest‑valued commercial properties from 1 April 2026. For retailers, logistics operators and commercial landlords, the planning window is open to validate valuations, model cash impacts and adjust pricing or lease terms where needed.