Did you enter your income from the previous job and the tax withheld from that in the portal for the new job? If not then the new job would assume your yearly income to be much less (since you started mid year) and your tax withholding would be lower than what it should be when consider both incomes.
Enough-Ad-5528 t1_j6by7t9 wrote
Reply to comment by ichosetobehere in Owe almost 10k in federal income taxes? by [deleted]
Did you enter your income from the previous job and the tax withheld from that in the portal for the new job? If not then the new job would assume your yearly income to be much less (since you started mid year) and your tax withholding would be lower than what it should be when consider both incomes.