GORDON Brown faces more pressure from his backbenchers over the 10p tax rate abolition today.

Some 20 Labour MPs could support amendments to the Finance Bill which would force the Government to compensate more than a million low-earners hit by the move.

The Treasury thought it had headed off a rebellion last month, when it unveiled an emergency £2.7bn package to help those who lost out.

But North West Leicestershire MP David Taylor said more still needed to be done, and called for a taper mechanism to be added to the £600 personal allowance introduced by the Chancellor.

"I think it is an important (issue) for our party," he told BBC Radio 4's Today programme.

"The attraction of the additional clause that I have tabled is that it is concise and it is precise. It compensates only those who are still losing out."

Mr Taylor said the measures would cost £66m, adding: "This is the stuff that is down the back of the Chancellor's sofa at Budget time."

It is unclear whether Speaker Michael Martin will call the amendments, tabled by Mr Taylor and Birmingham Selly Oak's Lynne Jones, for debate.

Dr Jones's plan would give individuals a choice on whether to opt in or out of the 10p rate, allowing anyone put at a disadvantage by the change to stick with the old rates.

Downing Street said yesterday that no further changes were planned to income tax arrangements for this financial year. Mr Darling will announce his plans for future years in the Pre-Budget Report this autumn.