The Senedd commission has revealed plans for a 21 per cent budget increase to support an expanded 96-member Welsh Parliament following May’s election.

The commission – which is the corporate body responsible for support services and the Senedd estate – published its £102.7m draft budget for 2026/27 on 25 September.

The budget figure represents a 21.3 per cent increase on the £84.6m 2025/26 budget which itself included a 16.7 per cent increase on the previous year.

The commission stated the increase for its core day-to-day operation budget was much lower at three per cent.

The draft budget includes £12.7m for the costs of 36 extra Senedd members while the total budget for all members’ salaries, support staff, allowances and office costs is £33.9m.

A ring-fenced budget of £4.5m has been set aside for one-off election-related costs, primarily for resettlement grants for politicians who do not return and redundancy payments for staff.

This will also include costs for a promotional campaign to encourage more people to vote, with turnout at Senedd polls having been lower than 50 per cent in every election over the past 25 years.

Much of the work preparing the draft budget was done by Labour MS Hefin David in his role as the commissioner for finance.

The commission paid tribute to Mr David, the former Labour Senedd member who died in August, for his passionate work.

Under the draft budget, £3.1m has been earmarked for the ‘Bay 32’ project, which is exploring future office accommodation – with the lease on Tŷ Hywel expiring in 2032.

Options thought to be on the table include building new offices, extending the lease, buying Tŷ Hywel or taking up a nearby property in Cardiff Bay.

The budget was based on creating three extra Senedd committees and holding an extra plenary session each week.

It also assumes a five per cent or £3,819 increase in politicians’ pay, taking the basic salary of Senedd members from £76,380 to £80,199.

Senedd members received a £4,300 pay rise this year and next year’s increase will ultimately be linked to a Welsh average earnings index due to be updated in November.

Staff on lower grades are set to receive a 3.75 per cent rise, according to the draft budget, while directors and the commission’s chief executive Manon Antoniazzi will receive three per cent.

A Senedd commission spokesperson said: “The commission is required to develop a draft budget to support a larger Senedd from next May.

“The draft budget laid today will now follow the usual process of being considered and challenged by the Senedd’s finance committee before a final budget is laid in November.”

The Senedd Commission is responsible for the day-to-day running of the Welsh Parliament, including maintaining politicians' offices in Cardiff Bay and the Senedd building itself, where MSs hold debates.

It also pays the salaries of MSs and their staff, as well as any additional allowances.

Its funding comes from the UK government.