Larger employers in the UK will have to publish the amount awarded in bonuses to men and women as part of proposed legislation to reduce the gender pay gap.
The regulations will apply to businesses in England, Wales and Scotland with more than 250 employees.
The move is the first of a number of “equality-boosting measures” to be set out in detail this week and introduced in the first half of 2016 if they are approved by the government.
More than 10 million workers will be covered by the new transparency rules.
Other steps include every company with more than 250 employees will be required by law to publish the difference between the average pay of their male and female employees. The requirements will be extended to the public sector as well as private and voluntary sector employers.
A target to include women on the boards of all the UK’s top 350 companies will be introduced - after the aim of getting women into at least a quarter of boardroom seats in FTSE 100 firms was met.
Neil Carberry, CBI director for employment and skills said: “Eradicating the gender pay gap is an important goal, but to be truly effective, gender pay gap reporting must be relevant to each company rather than a box-ticking exercise.
Companies recognise the value of having a diverse board that reflects society and their customers, so we look forward to working with the Government to end all-male boards in the FTSE 350 and elsewhere, building on the successful voluntary approach pioneered by Lord Davies.
And to continue progress, we need to challenge occupational stereotypes by encouraging more women into male dominated industries and strengthening careers advice.”