We automatically add the government top-up to the money you pay in. This works out as 25% of your contribution. For example, if you save £200 a month, it's topped up with £50. And a lump sum of £2,000 would get an extra £500.
You can pay money into the pension from 18 until you're 75 and start enjoying your savings from as early as 55 (rising to age 57 from April 2028).
Tax rules may change in the future.