If you have been paying estimates then the IRS probably sends you some prefilled 1040ES slips to mail back. I just got mine in the mail. My info is on them but the Amount is blank. So after I figure out how much I want to pay I write in the amount. And then the IRS slips fit in the envelopes.
I have Windows Home & Business too. Switch to Forms mode and open the Est Tax Options worksheet and play with the options. I also use the What-If Worksheet to help estimate my income for 2025. To find the What-If Worksheet. Go to Forms Mode, click Forms in the upper right or on the left for Mac. Then click Open Forms box in the top of the column on the left. Open the US listing of forms and towards the bottom find the What-if worksheet. It's right under Estimated Taxes.
