"Regulation (EU) No 531/2012 on roaming will no longer apply with respect to the UK, impacting business and other travellers to and from the UK," a leaked document from the European Parliament's industry, research and energy committee reads, as quoted by the newspaper.
Committee chair Jerzy Buzek reportedly said that it would be necessary for the United Kingdom and EU parliamentary committees to hammer out a deal if the sides wanted to address the problem.
The UK government plans to start withdrawal negotiations by the end of March, months before the roaming rules kick in.
From June, EU roaming charges will be limited to 3.2 cents ($0.034) per minute, one cent per text message and 7.7 euros per gigabyte of data. Internet charges are then set to decrease to 2.5 euros per gigabyte through 2022.
The European Union has been reducing roaming charges since introducing a corresponding regulation in 2012.