樓主的情況是己經交了足夠多的稅，有penalty 是因為irs assume 他get paid evenly per

Quarter, so he should paid estimated tax per quarter 但是樓主沒有，隻是最後才交（when he get lot of bunus at end of year). So he need file that form to explain. That's my guess.

所有跟帖： 

• 不懂為啥會這樣，我經常年底之前交一大筆，也沒IRS來問罪。今年10月份發現多交了，IRS還退回了我2萬多加利息 -米奇的廚房- ♂ (0 bytes) () 01/21/2024 postreply 15:34:19

• 按規定應該pay it when you earned. If IRS make wrong assumptions -NClady- ♀ (253 bytes) () 01/21/2024 postreply 16:50:26