The Department of Finance has opened a consultation on two proposed changes to Northern Ireland’s non-domestic rating system: a Business Growth Accelerator and reform of Non-Domestic Vacant Rating. The consultation closes on 23rd September 2026 and is open to businesses, property owners, organisations and representative bodies.

The Business Growth Accelerator would apply where a business invests in an existing commercial property. At present, improvements to a premises can increase its rateable value, meaning a higher rates bill can follow once works are complete. Under the proposal, that increase would be delayed for a set grace period, with the business continuing to pay rates based on the previous valuation during that period. The consultation gives the example of a property moving from a rateable value of £50,000 to £75,000, with the higher liability applying only after the grace period ends.

For businesses considering refurbishment, expansion or changes to improve capacity, this could provide useful breathing space. The detail will be important, the Department is asking what length of grace period should apply, how “qualifying improvements” should be defined, and whether enhanced support should apply where vacant units are brought back into use.

The second proposal deals with vacant commercial property. At present, vacant non-domestic properties are liable for up to 50% of occupied rates. The Department is consulting on a phased increase to 75% and then to 100%. The initial three-month exemption and existing exclusions, including insolvency and listed buildings, would remain unchanged.

The aim is to encourage occupation, reduce long-term vacancy, align Northern Ireland more closely with other jurisdictions and increase revenue. The Minister’s statement estimates that the change could raise up to £20 million annually.

The Chamber supports rates reform that encourages investment and brings long-term vacant property back into productive use. However, the final design must recognise that vacancy is not always straightforward. Some premises remain empty because of poor condition, weak demand, ownership issues, infrastructure constraints, heritage requirements or the cost of refurbishment.

Members with experience of premises investment, expansion, refurbishment or vacant commercial property are encouraged to respond before the deadline, so the final policy reflects real trading and property market conditions in the North West.

You can respond here Business Growth Accelerator – Non Domestic Vacant Rating Liability Consultation