This is the defined contribution section of USS and it works like a flexible savings pot. Your money is invested in funds and the final value of your savings will be based on how much has been paid in and how those investments have performed. These funds can be taken from when you reach 55 years of age without the need to retire.
The Investment Builder works alongside the Retirement Income Builder, but they are quite different. The Retirement Income Builder gives you a guaranteed income for life and a one-off, cash lump sum based on your salary and years of service. You’ll also need to retire to access your Retirement Income Builder benefits, usually at the Normal Pension Age (which aligns with the State Pension age and is currently 66).
The benefits that you earn in the Retirement Income Builder are based on your salary up to the salary threshold which is currently £70,296.00 If you earn over the salary threshold you’ll automatically start paying into the Investment Builder.
You can start making additional contributions to the Investment Builder through My USS. You can choose to make a one-off payment, or monthly contributions as a percentage of your salary.
Information from the USS site: