Yes, they are optional to pay. They don’t get sent with your return so the IRS won’t be expecting them. You can change the amount and pay what you want. You can pay directly on the IRS website https://www.irs.gov/payments
Be sure to pick the right kind of payment and year.....2025 Estimate
If you want to adjust them or print new ones,
You can just type W4 in the search box at the top of your return , click on Find. Then Click on Jump To and it will take you to the estimated tax payments section. Say no to changing your W-4 and the next screen will start the estimated taxes section.
Or Go to….
Federal Taxes or Personal (Deskop H&B)
Other Tax Situations
Other Tax Forms
Form W-4 and Estimated Taxes - Click the Start or Update button
The IRS does not require you to pay any estimated tax; however, if you hall short you may incur a penalty.
The underpayment penalty will be assessed if any of these apply:
To avoid the under payment penalty:
"Typically, underpayment penalties are 5% of the underpaid amount, and they're capped at 25%.
Underpaid taxes also accrue interest at a rate that the IRS sets annually."
To avoid this situation it is recommended that you adjust your W-4 with your employer or pay estimated taxes.
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