The European Union is drawing up plans to control Britain’s tax policies ­after Brexit, leaked documents seen by The Daily Telegraph disclose.

According to draft documents, the EU wants to ensure the UK pledges to keep its tax rules aligned with those of the bloc as part of any future Brexit agreement.

Such a move would prevent the UK from becoming a low-tax economy by cutting its corporation tax rate to attract business. And – depending on the wording of any agreement – it could mean that any future changes to the EU’s tax rules would need to be followed by the UK, even years after Brexit.

The document was written by the European Parliament’s TAX3 secretariat following a meeting with the Brexit Task Force, the EU negotiating team led by Michel Barnier, last week.

It states: “The objective is that the UK will abide by the tools adopted at EU level to fight tax evasion/avoidance.”

The EU desire for alignment on tax reflects a fear in Brussels that Britain could become a Singapore-style low-tax economy after Brexit and a magnet for business and investment.