Maximum Tsp Contribution 2024 Biweekly Amount Taxable. For the year 2024, the new maximum amount for funding your tsp (or any 401(k), 403b, 457, etc.) is now $23,000, up from $22,500, for those under age 50. This comes out to $885/pay period (final deduction will be automatically limited to $875).

For the calendar year 2024, the combined total of traditional tsp and roth tsp contributions made via payroll deduction cannot exceed $30,500 ($23,000 elective. With 26 pay periods in the year, that’s around $1173.07 per pay period to max.