The government paid out £1.14m in legal fees as it fought Gina Miller in the Supreme Court over Article 50.
Miller’s battle to allow MPs to vote on Article 50 cost the government £1.143m in total, according to accounts filed today by the Department for Exiting the European Union (DexEU).
The department spent £317,000 in legal fees, £333,000 on other counsel fees and £493,000 on payments to the parties it lost out to in court.
A separate legal fight over Article 127 cost the department £78,000.
DexEU's figures show how rapidly the department has expanded since it was first set up in July last year.
It began with just 56 staff when it was first formed, and by March this year had a total of 384 staff.
And, despite the hefty legal costs the department faced, it managed to be pretty frugal in 2016-17. Net spending was £24.2m, which the department said amounted to an underspend of £25.2m.