Form 1040ES is not a form which is submitted to the IRS. You can technically pay in as much as you want along the way and mark it as estimated tax. Your employer, however, has a requirement to withhold certain amounts using your W-4 as a guide. If you prefer that your employer withholds less and you then pay in on your own, you should provide your employer with a new W-4. See the W-4 instructions to figure out the correct entries for your situation.
(Whether through withholding or through estimated tax payments, the IRS is supposed to be receiving tax payments at certain markers throughout the year. If everyone follows the rules then there are no penalties for anyone.)
I did not realize that the 1040-ES does not need be filed, thanks! I understand the need to submit a W-4 to my employer to lower the withholding amount. I have looked at the
W-4 instructions and it is not clear to me whether you can include reductions based on planned direct payments to the IRS.
If it can be included, I am pretty sure it would be added to line 3, which states:
Add the amounts above for qualifying children and other dependents. You may add to this the amount of any other credits. Enter the total here. Aside from instructions about dependents, the form instructions add:
You can also include other tax credits for which you are eligible in this step, such as the foreign tax credit and the education tax credits. To do so, add an estimate of the amount for the year to your credits for dependents and enter the total amount in Step 3. Including these credits will increase your paycheck and reduce the amount of any refund you may receive when you file your tax return. The instructions do not say anything about including past of future payments to the IRS.