Shadow Chancellor Ed Balls has argued that postponing the planned January increase could be paid for by clamping down on tax avoidance schemes used by employment agencies.
In a blog for PoliticsHome, Mr Balls wrote:
Where should the Government get the money to pay for this tax cut? I suggest they pay for this move by clamping down on tax avoidance.
For example, there is a growing problem with some employment agencies forcing workers to become employees of an umbrella company.
They then falsely inflate the worker's travel and food expense claims, reducing tax and national insurance, and pocket the avoided tax as profits.
HM Revenue and Customs has forecast that these schemes cost the exchequer £650 million a year. Recent estimates have now put it as high as £1 billion a year.
Even if only a proportion of that money was recouped it could pay for the fuel duty rise to be put off until next spring.
More top news
Controversial columnist Katie Hopkins has described her fear that she may die during brain surgery to cure her epilepsy.
A funeral is to be held outside in the US state of Georgia for Bobbi Kristina Brown, daughter of the late Whitney Houston and Bobbi Brown.
Experts have warned that Ash dieback's impact on millions of trees could have serious consequences for the landscape and wildlife.