Ministers have reset the timetable on second‑home council tax where councils have been stitched together. From 8 May 2026, a merged ‘successor’ authority must give a full year’s notice before it can switch on the higher rate in any part of its area that never previously agreed to charge it.

The change lands via Statutory Instrument 2026/406, which tweaks the Local Government (Structural Changes) (Finance) Regulations 2008. In plain terms: if some of the old districts had voted for the premium on dwellings “occupied periodically” - think holiday homes and occasional city crash‑pads - but others had not, any later decision by the new council is treated as a first‑ever decision for those holdout places. That triggers the 12‑month notice rule in section 11C of the Local Government Finance Act 1992.

The dates matter. If a successor council votes in June 2026 to extend the premium into a predecessor area that never set one, the earliest start date would be 1 April 2028. The law requires the first determination to be made at least one year before the beginning of the financial year it applies to, so there’s no quick roll‑out for April 2027.

For the North, this is not abstract. Holiday‑let hotspots from Whitby to Windermere, and villages across Northumberland and the Dales, sit within large unitary footprints. Residents pressing for action on dark‑windows and stretched rental markets will see timetables lengthen in places that hadn’t previously moved, while second‑home owners in those parishes effectively gain a year’s grace.

Expect a patchwork to persist in the short term. Streets where one side already pays the premium will carry on doing so, while neighbouring areas that never agreed it will wait until the notice period runs its course - even if the new council wants to align everyone at once.

Legally, the instrument amends regulation 9 of the 2008 Structural Changes (Finance) Regulations to define a “subsequent determination” and a “subsequent determination area”. That wording is there to make sure the one‑year notice in section 11C(3) bites specifically in places with no earlier decision, rather than across the board.

According to the official UK legislation notice, the regulations were signed by Minister of State Alison McGovern at 11.55am on 14 April 2026 and laid before Parliament at 4.00pm the same day. They extend to England and Wales, but the practical effect sits with English billing authorities created by structural change orders.

Whitehall has not published a full impact assessment, saying it is not needed for an amendment to an existing local tax regime. For households and councils on the ground, the change is about sequencing and certainty more than new powers.

Finance leads will now need to re‑profile budgets and communications. Tourism towns relying on council tax to keep basics going - from public loos to beach safety - must plan for at least a year’s lag where the premium is being introduced to previously undecided areas.

For property owners and letting agents, the takeaway is simple: watch your council’s meeting papers. A vote taken on or after 8 May 2026 to extend the premium into an area that never had it will not bite until at least April 2028. Where a premium is already in force, nothing here unwinds it.

The higher rate for dwellings “occupied periodically” was created by the Levelling‑up and Regeneration Act 2023. This update adapts that power to the new map of local government. It is technical, yes - but for coastal and rural communities across the North living with tight housing supply and a visitor economy, it will shape when change is felt on the ground.