Thrift Savings Plan (TSP) End of Year Reminders

The following is some important information for you to consider in managing your TSP account.

Elective Deferral Limit for 2024

The IRS Elective Deferral limit has increased for 2024. Therefore, you can invest up to $23,000 in your TSP 

during the 2024 tax year.

The percentage limitations on agency contributions to the TSP accounts of Federal Employees Retirement System 

participants will remain the same. That is, agency automatic (1%) contributions are equal to one percent of the 

participant’s adjusted basic pay for the pay period, and agency matching contributions may be up to four percent 

of the participant’s adjusted basic pay for the pay period.

There will be 26 pay dates in the 2024 tax year. To distribute TSP contributions equally over all 26 pay dates, 

make your election during the period December 3, 2023, thru December 16, 2023. That election will be effective 

December 17, 2023 and will be withheld from your first paycheck in tax year 2024 -- which you will receive on 

January 5, 2024.

TSP Catch-Up Contributions

The IRS Elective Deferral limit for TSP Catch-up is unchanged from 2023. If you are age 50 or older or will 

attain the age of 50 within the 2024 tax year, you are also eligible to make an additional $7,500 “Catch-up” 

contribution for 2024. Effective January 1, 2021, the Federal Retirement Thrift Investment Board (FRTIB) 

implemented the spillover method for Catch-up contributions. The spillover method streamlines the catch-up 

process for all current employees who are turning 50 years or older during 2024. With this change, eligible 

participants no longer need to make separate Catch-up contributions. Once participants reach the annual Elective 

Deferral Limit (EDL) of $23,000, their regular contributions will automatically start counting toward the Catchup contribution limit of $7,500.

First Effective Date for 2024 TSP Elections

The first effective date for TSP elections for the 2024 tax year is December 17, 2023. If you wish to equally 

space your 2024 contributions throughout the entire tax year, your electronic transactions through the 

Government Retirement & Benefits (GRB) Platform must be submitted during the “prior” pay period (December 

3, 2023 thru December 16, 2023).

How to Enroll In TSP or Make a Change Through GRB

To make an election in GRB, follow this link https://grbplatform.hr.dla.mil/grb/, select the Thrift Savings Plan 

tile, and submit your transaction. If you encounter any login or other technical issues with GRB, please email the 

GRB administrator at GRBPlatform@dla.mil.

Investment Elections/Allocations

To find out more about the funds and how to make your investment allocations visit https://www.tsp.gov or call 

the TSP Thrift line at (877) 968-3778.

How to Determine the Bi-weekly Amount to Contribute for TSP Contributions for Calendar Year 2024

The maximum amount you can contribute in calendar year 2024 is $23,000. You can contribute any amount as 

long as it does not exceed $23,000 per year. The attached chart, TSP Under age 50 Elections for 2024, illustrates
how to determine the amount to elect each pay date to contribute the $23,000 maximum. Once the limit has been 

reached, the withholdings will stop. If you later discover your contribution amount will result in contributing less 

than the maximum allowable amount by the end of the calendar year, you can always increase your contribution 

amount in order to reach the ceiling for the 26 pay dates. Be careful not to exceed the contribution limits early if 

you are eligible for matching or your contributions will stop and you will miss out on matching the rest of the 

year!

How to Determine the Bi-weekly Amount to Contribute for Catch-up Contributions for Calendar Year 2024

The Catch-up contribution process for 2024 has gotten easier for participants with the introduction of the spillover 

method. The maximum amount you can contribute for TSP Catch-up in calendar year 2024 is remaining $7,500, 

but participants will no longer have to complete a separate election. Any contribution made above the deferral 

limit will automatically count towards the Catch-up contribution limit and spill over until the Catch-up limit is 

met. Contributions spilling over will be matched up to 5% as that is what eligible participants are already 

entitled to. Please note that you are not required to contribute the maximum amount if you want to participate in 

catch-up contributions. You can contribute any amount as long as it does not exceed $7,500 per year. The

attached chart, TSP Age 50 and Over Elections for 2024, illustrates how to determine the amount to elect each

pay date to contribute the $7,500 maximum. Remember that catch-up contribution changes can be made at any 

time (but the annual catch-up limit may not be exceeded). Once the limit has been reached, the withholdings will 

stop. If you later discover your contribution amount will result in contributing less than the maximum allowable 

amount by the end of the calendar year, you can always increase your contribution amount in order to reach the 

ceiling for the 26 pay dates.

*****Please pay close attention to your LES in 2024 to ensure that all of your benefits elections are correct.

If you do not see the changes you have made on your LES please contact us immediately.*****

Questions on TSP and benefits elections can be directed to your servicing DLA Human Resources Benefits 

Team. Find the correct contact for your organization at: https://www.dla.mil/Careers/Contact/.
The maximum amount you can contribute in calendar year 2024 is $23,000. You can contribute any 

amount as long as it does not exceed $23,000per year. The chart below illustrates how to determine 

the amount to elect each pay period to contribute the $23,000 maximum. Once the limit is reached, 

the withholdings will stop. If you later discover your contribution amount will result in contributing

less than the maximum allowable amount by the end of the calendar year, you can always increase 

your contribution amount in order to reach the ceiling for the 26 pay dates.

TSP Elections Input into the GRB Effective Date of 

TSP Election

Date

Deductions 

will begin to 

be reflected

on LES

To contribute $23,000 Per 

Year elect the number of Pay 

Dates to the Dollar Amount

Dec 3, 2023 – Dec 16, 2023 Dec 17, 2023 Jan 5, 2024 26 Pay Dates $885

Dec 17, 2023 – Dec 30, 2023 Dec 31, 2023 Jan 19, 2024 25 Pay Dates $920

Dec 31, 2023 – Jan 13, 2024 Jan 14, 2024 Feb 2, 2024 24 Pay Dates $959

Jan 14, 2024 – Jan 27, 2024 Jan 28, 2024 Feb 16, 2024 23 Pay Dates $1000

Jan 28, 2024 – Feb 10, 2024 Feb 11, 2024 Mar 1, 2024 22 Pay Dates $1046

Feb 11, 2024 – Feb 24, 2024 Feb 25, 2024 Mar 15, 2024 21 Pay Dates $1096

Feb 25, 2024 – Mar 9, 2024 Mar 10, 2024 Mar 29, 2024 20 Pay Dates $1150

Mar 10, 2024 – Mar 23, 2024 Mar 24, 2024 Apr 12, 2024 19 Pay Dates $1211

Mar 24, 2024 – Apr 6, 2024 Apr 7, 2024 Apr 26, 2024 18 Pay Dates $1278

Apr 7, 2024 – Apr 20, 2024 Apr 21, 2024 May 10, 2024 17 Pay Dates $1353

Apr 21, 2024 – May 4, 2024 May 5, 2024 May 24, 2024 16 Pay Dates $1438

May 5, 2024 – May 18, 2024 May 19, 2024 Jun 7, 2024 15 Pay Dates $1534

May 19, 2024 – Jun 1, 2024 Jun 2, 2024 Jun 21, 2024 14 Pay Dates $1643

Jun 2, 2024 – Jun 15, 2024 Jun 16, 2024 Jul 5, 2024 13 Pay Dates $1770

Jun 16, 2024 – Jun 29, 2024 Jun 30, 2024 Jul 19, 2024 12 Pay Dates $1917

Jun 30, 2024 – Jul 13, 2024 Jul 14, 2024 Aug 2, 2024 11 Pay Dates $2091

Jul 14, 2024 – Jul 27, 2024 Jul 28, 2024 Aug 16, 2024 10 Pay Dates $2300

Jul 28, 2024 – Aug 10, 2024 Aug 11, 2024 Aug 30, 2024 9 Pay Dates $2556

Aug 11, 2024 – Aug 24, 2024 Aug 25, 2024 Sep 13, 2024 8 Pay Dates $2875

Aug 25, 2024 – Sep 7, 2024 Sep 8, 2024 Sep 27, 2024 7 Pay Dates $3286

Sep 8, 2024 – Sep 21, 2024 Sep 22, 2024 Oct 11, 2024 6 Pay Dates $3834

Sep 22, 2024 – Oct 5, 2024 Oct 6, 2024 Oct 25, 2024 5 Pay Dates $4600

Oct 6, 2024 – Oct 19, 2024 Oct 20, 2024 Nov 8, 2024 4 Pay Dates $5750

Oct 20, 2024 – Nov 2, 2024 Nov 3, 2024 Nov 22, 2024 3 Pay Dates $7667

Nov 3, 2024 – Nov 16, 2024 Nov 17, 2024 Dec 6, 2024 2 Pay Dates $11500

Nov 17, 2024 – Nov 30, 2024 Dec 1, 2024 Dec 20, 2024 1 Pay Date $23000

TSP Under Age 50 Elections for 2024
The maximum amount you can contribute for TSP is $23,000 and TSP Catch-up is $7,500 in calendar 

year 2024. You can contribute any amount as long as it does not exceed $30,500 per year. The chart 

below illustrates how to determine the amount to elect each pay period to contribute the $30,500 

maximum. Remember that TSP and TSP Catch-up contribution changes can be made at any time (but 

the annual catch-up limit may not be exceeded). Once the limit has been reached, the withholdings will 

stop. If you later discover your contribution amount will result in contributing less than the maximum 

allowable amount by the end of the calendar year, you can always increase your contribution amount

in order to reach the ceiling for the 26 pay dates.

TSP Elections Input into the 

GRB

Effective Date of 

TSP Election

Date Deductions 

will begin to be 

reflected on LES

To contribute $30,500 Per Year

elect the number of Pay Dates 

to the Dollar Amount

Dec 3, 2023 – Dec 16, 2023 Dec 17, 2023 Jan 5, 2024 26 Pay Dates $1174

Dec 17, 2023 – Dec 30, 2023 Dec 31, 2023 Jan 19, 2024 25 Pay Dates $1220

Dec 31, 2023 – Jan 13, 2024 Jan 14, 2024 Feb 2, 2024 24 Pay Dates $1271

Jan 14, 2024 – Jan 27, 2024 Jan 28, 2024 Feb 16, 2024 23 Pay Dates $1327

Jan 28, 2024 – Feb 10, 2024 Feb 11, 2024 Mar 1, 2024 22 Pay Dates $1387

Feb 11, 2024 – Feb 24, 2024 Feb 25, 2024 Mar 15, 2024 21 Pay Dates $1453

Feb 25, 2024 – Mar 9, 2024 Mar 10, 2024 Mar 29, 2024 20 Pay Dates $1525

Mar 10, 2024 – Mar 23, 2024 Mar 24, 2024 Apr 12, 2024 19 Pay Dates $1606

Mar 24, 2024 – Apr 6, 2024 Apr 7, 2024 Apr 26, 2024 18 Pay Dates $1695

Apr 7, 2024 – Apr 20, 2024 Apr 21, 2024 May 10, 2024 17 Pay Dates $1795

Apr 21, 2024 – May 4, 2024 May 5, 2024 May 24, 2024 16 Pay Dates $1907

May 5, 2024 – May 18, 2024 May 19, 2024 Jun 7, 2024 15 Pay Dates $2034

May 19, 2024 – Jun 1, 2024 Jun 2, 2024 Jun 21, 2024 14 Pay Dates $2179

Jun 2, 2024 – Jun 15, 2024 Jun 16, 2024 Jul 5, 2024 13 Pay Dates $2347

Jun 16, 2024 – Jun 29, 2024 Jun 30, 2024 Jul 19, 2024 12 Pay Dates $2542

Jun 30, 2024 – Jul 13, 2024 Jul 14, 2024 Aug 2, 2024 11 Pay Dates $2773

Jul 14, 2024 – Jul 27, 2024 Jul 28, 2024 Aug 16, 2024 10 Pay Dates $3050

Jul 28, 2024 – Aug 10, 2024 Aug 11, 2024 Aug 30, 2024 9 Pay Dates $3389

Aug 11, 2024 – Aug 24, 2024 Aug 25, 2024 Sep 13, 2024 8 Pay Dates $3813

Aug 25, 2024 – Sep 7, 2024 Sep 8, 2024 Sep 27, 2024 7 Pay Dates $4358

Sep 8, 2024 – Sep 21, 2024 Sep 22, 2024 Oct 11, 2024 6 Pay Dates $5084

Sep 22, 2024 – Oct 5, 2024 Oct 6, 2024 Oct 25, 2024 5 Pay Dates $6100

Oct 6, 2024 – Oct 19, 2024 Oct 20, 2024 Nov 8, 2024 4 Pay Dates $7625

Oct 20, 2024 – Nov 2, 2024 Nov 3, 2024 Nov 22, 2024 3 Pay Dates $10167

Nov 3, 2024 – Nov 16, 2024 Nov 17, 2024 Dec 6, 2024 2 Pay Dates $15250

Nov 17, 2024 – Nov 30, 2024 Dec 1, 2024 Dec 20, 2024 1 Pay Date $30500

TSP Age 50 and Over Elections for 2024