Brexit talks will enter what's being called an "intense" stage this weekend.
It follows discussions between the EU's chief negotiator Michel Barnier and the UK's Brexit secretary Stephen Barclay yesterday.
There are now just 19 days until the UK is due to leave the European Union.
British Prime Minister, Boris Johnson, says he is hopeful a deal can be reached.
It's understood the prime minister's plan would involve Northern Ireland continuing to administer European Union tariffs despite leaving the bloc's customs union.
This would remove the need for customs checks but also allow the businesses north of the border to benefit from new UK trade deals by applying for a rebate from the government.
Downing Street has not officially confirmed the plan but Mr. Johnson stoked speculation on Friday by refusing to say whether Northern Ireland would stay in the EU customs union.
