Nick Clegg has mocked the Conservatives for trying to claim credit for the latest retirement and tax allowance measures.
The Liberal Democrat leader said: "Have you ever worked with someone who tries to pass off your good ideas as their own?
"That's what it very much feels like with the Conservatives, certainly when it comes to tax."
Clegg continued, "All of those changes, which all come into effect right now - today and this week - are changes that only happen because the Liberal Democrats went into government."
The personal tax allowance would rise to £12,500 under the Lib Dems, funded by a crackdown on tax dodgers, leader Nick Clegg has revealed.
Millions of households would be better off under a Tory government, David Cameron will claim today as he hails "money-back Monday".
A Conservative government would aim to double the number of first-time buyers by 2020, the Chancellor has declared.