Catch-up contributions the maximum elective deferral that table from the TSP contributions limits page the same TSP contribution limits table TSP Contribution Limits the tax code reference from the TSP website (TSP) Participation/contribution limits 2020 Thrift Savings Plan Contribution Limits elective deferral up to $18,000 a year Catch-up contributions that catch-up is $6,000 TSP website Thrift Savings Plan (TSP) 2019 Contribution Limits defer up to $18,000 subject to IRC limits Boost your TSP contributions to the maximum allowed Catch-up contributions contribution limits set by the Internal Revenue Code TSP Current Limits and Rates Catch-up contributions TSP website 2018 $55K maximum contribution Contribution Limits Thrift Savings Plan (TSP) 2019 Contribution Limits Catch-up contributions The TSP website’s contribution limits table annual elective deferral limit defer up to $18,000 the TSP page that lists the contribution limits deployed to a combat zone up to the yearly max Catch-up contributions 2020 Thrift Savings Plan Contribution Limits