More than half a million low-paid workers could lose out on thousands of pounds in employer pension contributions if the government increases the auto-enrolment earning trigger, unions have claimed.
A cap on tax relief for high earners could raise £10bn a year and help close the gaping public deficit, says the TUC.
The Institute of Directors (IOD) has proposed a radical overhaul of the pension system, including a plan to increase the state retirement age to 70.
The Trade Unions Congress has called on the government to meet proposals put forward by the Turner Commission arguing ministers should not be swayed by individuals who do not back compulsion.
Unions have warned UK companies are not adhering to promises of sharing the "burden" of pensions saving with employees.