Thanks for your response.
Yes I am a GS civilian still working in Germany for the army.
It is very difficult to answer the questions you asked because my salary changed when I moved to Germany in August 2021 and I don't have all the pay-stubs. They also did not take out the same amount every month for repayment. They started recouping the over-payment in OCT 2021.
I was able to determine(I think) that I paid back $4663 in 2021 and $3499 in 2022, which makes a total of $8162.
So it looks like I did not have to pay all taxes on the $10,000. Maybe only Social Security and Medicare.
Recently I received notification from DFAS ( Defense Financing and Accounting Service) stating that I was overpaid by $3499 in 2022 and it was reported as taxable income.
Thanks again for your help.
