Sir Keir Starmer has promised to seek a major rewrite of Britain’s Brexit deal in 2025 if Labour win the next general election, saying he owes it to his children to rebuild relations with the EU.

Starmer told the Financial Times that he would put a closer trading relationship with Brussels and a new partnership with business at the heart of his efforts to bolster Britain’s economic growth.

Britain’s Trade and Cooperation Agreement with the EU, negotiated by former premier Boris Johnson, is due for review in 2025 and Starmer said he saw this as an “important” moment to reset relations.

“Almost everyone recognises the deal Johnson struck is not a good deal — it’s far too thin,” he said in an interview. “As we go into 2025 we will attempt to get a much better deal for the UK.”

It is far from clear whether the EU would wish to renegotiate the trade deal, which only came into force in 2021, particularly if it involved Britain selectively choosing only parts of the single market. Many in Brussels see the 2025 review as simply a tidying-up exercise.