Newark MP Patrick Mercer will be speaking in a parliamentary debate today on the Government's controversial "beer tax escalator" policy.
It was introduced back in March 2008, raising the duty on beer by 2% above the rate of inflation.
Since then, the British Beer and Pub Association say that the tax on beer has risen by more than 40%.
According to The Campaign for Real Ale (Camra), pub closures have increased from 12 a week in the past year.
A petition with 100,000 signatures will be handed over at today.