Would be very grateful for any insight because I’ve been googling for about two hours and I’m somehow even more confused than when I began. I started a new job two weeks ago. It’s through a contract agency so it’s hourly. I work 40 hours per week, I get paid every 2 weeks, and I should be here for the duration of the year. I initially chose to withhold an additional $400 in federal income tax (I assumed that would be per paycheck but I honestly have no idea). *EDIT: I was a student until July so this will be the only income I report for 2025.* I just got my first paycheck (it’s only for one week of work because I started in the middle of a pay period). My gross pay was 2,880 and here’s the non-state tax breakdown: $711.07 for Federal Income Tax $178.56 for Social Security Tax $41.76 for Medicare Tax I realized I had no idea if I was actually withholding enough so I used the IRS estimator tool. My total pre-tax income for the year should be about $28,000 and the estimator is telling me that, with the standard deduction, my anticipated tax obligation is $1,331. I indicated that I had withheld $711.07 so far this year (the amount of federal income tax taken out of my first check). For estimated tax payments, I put 0. Based on that info, the estimator said that I will not have withheld enough for the year and the projected amount owed would be about $620. It also said that they estimate it’s no longer possible for me to withhold enough this year to fully pay for the tax I’ll owe at the end of the year. So here are my questions! 1. For estimated tax payments, does that include the amount my employer automatically takes from my check every pay period? 2. How much should I be withholding per pay period for the remainder of the year? 3. I assume that extra 400 I withheld is represented in that federal income tax amount on my check. Is that probably true? How can I check that?