The Chancellor George Osborne has joined a global pledge to combat tax avoidance by multi-national firms. The move comes as Labour leader Ed Miliband continues to promote his tax plans which include a 'mansion tax' - a strategy that could put the Coalition under renewed strain.
ITV News' political correspondent Carl Dinnen looks at the battle over taxation:
Full list of candidates for the Eastleigh by-election:
- Conservative - Maria Hutchings
- Labour - John O'Farrell
- Liberal Democrats - Mike Thornton
- UK Independence Party - Diane James
- National Health Action - Iain MacLennan
- Independent - Danny Stupple
- English Democrats - Mike Walters
- Monster Raving Loony Party - Alan Hope
- Wessex Regionalists - Colin Bex
- Elvis Loves Pets - David Bishop
Ed Miliband promoted his plans for a "mansion tax" and to introduce a 10p tax rate, during a visit to the hotly contested Eastleigh seat today.
The Labour Party leader hopes to woo the Hampshire borough - formerly represented by disgraced Liberal Democrat ex-cabinet minister Chris Huhne - from the the Conservative party.
He said that Labour was in favour of reviving the 10p income tax rate - a move that could be paid for by a levy on £2 million-plus homes.
"This is a living standards by-election, that's the issue on the minds of so many people in Eastleigh - not being able to afford the weekly food bill, not being able to afford to fill up the car," Miliband said.