Treasurer Joe Hockey has pledged that the Abbott government will take personal income tax cuts to the next election, ensuring they are a major poll issue.

Mr Hockey will on Monday set out a comprehensive economic case for personal income tax cuts in a speech to the Tax Institute and Chartered Accountants Australia and New Zealand in Sydney.

"Committed to reducing income taxes": Joe Hockey. Credit:Andrew Meares

With the Coalition still reeling from disastrous poll results last week, Mr Hockey will say the government has "[no] other choice" but to cut taxes for middle and low income households because the tax system is increasingly penalising them.

The Treasurer's clear stance on tax cuts comes days after multiple cabinet leaks showed the government wants to return the national conversation to the Coalition's perceived strengths of the economy, jobs and growth.