Start, change, or stop contributions
In most cases, you’ll use your agency’s or service’s electronic payroll system to start, change, or stop your TSP contributions.
I was just hired. Am I already contributing?
If you’re a brand new employee of the federal government or uniformed services, you were automatically enrolled in the TSP at 3% of your salary. Many people who were automatically enrolled decide to increase their contributions to at least 5% of their salary to get the full match from their agency or service.