Millions of workers in the UK will gradually see a slice of their pay packet being automatically diverted to a savings pot for their pension.
Employers are obliged to pay in as well, with the government adding a little extra through tax relief.
The system – called automatic enrolment – started at the beginning of October 2012 with staff who work for the biggest businesses, with others being signed up over the following six years.
Those who already save in a workplace pension scheme or are self-employed will not be signed up.
Experts and ministers say it is vital people make a start at an early stage in their working lives, to eventually have savings that will top up the state pension.
Q&As coming for the rest of the week….