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High Three
Your “high-3” average pay is the highest average basic pay you earned during any 3 consecutive years of service.
LWOP
Non-Pay vs Pay Status: To be in non-pay status, you have to be not be in pay status for the entire pay period, but all that means is some benefits don’t get stopped. For example, you can’t contribute to tsp if you make no pay (non-pay status). If on pay status with non-paid hours, you and the gov't only contribute based on what you actually were paid. Except for pay/non-pay status, all non-pay hours are aggregate for the year.
Leave: LWOP accumulates on a revolving 80 hour basis for the leave year, regardless of when it’s taken. Every time 80 hours is accumulated, no leave is earned for that pay period. Note, if you cross the 80 hour mark in the last pay period of the leave year, and earn 6 hrs/pp, you will forfeit the entire 10 hours.
Example: 79 hrs LWOP / year = no leave lost. 40 hrs LWOP in first pay period, 40 hrs LWOP on 10th pay period; 10 pay period leave accumulation is forfeit.
Retirement/SCD time: As long as you work 6 months a year, there is no loss of time, like losing a year of creditable service for retirement.
Insurance: Life insurance continues for 12 months while in non-pay status without extra cost. Must be on 4 consecutive months of pay status to reset that timer. Health insurance is the same, except you owe the normal premium cost.
Effect of Extended Leave Without Pay (LWOP) (or Other Nonpay Status) on Federal Benefits and Programs (opm.gov)
5 U.S. Code Subchapter III - THRIFT SAVINGS PLAN
The laws governing TSP occasionally change. Below link is the section of USC governing the TSP.
www.law.cornell.edu
Your “high-3” average pay is the highest average basic pay you earned during any 3 consecutive years of service.
- 1.7% of your high-3 average salary multiplied by your years of service which do not exceed 20, PLUS
- 1% of your high-3 average salary multiplied by your service exceeding 20 years
LWOP
Non-Pay vs Pay Status: To be in non-pay status, you have to be not be in pay status for the entire pay period, but all that means is some benefits don’t get stopped. For example, you can’t contribute to tsp if you make no pay (non-pay status). If on pay status with non-paid hours, you and the gov't only contribute based on what you actually were paid. Except for pay/non-pay status, all non-pay hours are aggregate for the year.
Leave: LWOP accumulates on a revolving 80 hour basis for the leave year, regardless of when it’s taken. Every time 80 hours is accumulated, no leave is earned for that pay period. Note, if you cross the 80 hour mark in the last pay period of the leave year, and earn 6 hrs/pp, you will forfeit the entire 10 hours.
Example: 79 hrs LWOP / year = no leave lost. 40 hrs LWOP in first pay period, 40 hrs LWOP on 10th pay period; 10 pay period leave accumulation is forfeit.
Retirement/SCD time: As long as you work 6 months a year, there is no loss of time, like losing a year of creditable service for retirement.
Insurance: Life insurance continues for 12 months while in non-pay status without extra cost. Must be on 4 consecutive months of pay status to reset that timer. Health insurance is the same, except you owe the normal premium cost.
Effect of Extended Leave Without Pay (LWOP) (or Other Nonpay Status) on Federal Benefits and Programs (opm.gov)
5 U.S. Code Subchapter III - THRIFT SAVINGS PLAN
The laws governing TSP occasionally change. Below link is the section of USC governing the TSP.

5 U.S. Code Subchapter III - THRIFT SAVINGS PLAN
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