Can you mail estimated taxes on the day due

The IRS allows you to mail your estimated tax payments on the due date, but it's not recommended. Here's why:

1. Risk of late payment penalty: If you mail your payment on the due date, there's a risk that it may not arrive on time, which could result in a late payment penalty. The IRS considers a payment to be "on time" if it's received by the due date, not just postmarked by the due date.
2. No confirmation of receipt: When you mail a payment, you won't receive confirmation that the IRS has received it. This can lead to uncertainty and potential issues if you need to verify your payment.
3. Potential for lost or delayed payments: Mail can get lost or delayed, which could result in your payment not being received by the IRS on time.

Instead, consider the following options:

1. Pay online: You can pay your estimated taxes online through the Electronic Federal Tax Payment System (EFTPS) at irs.gov/payments. This way, you'll receive instant confirmation of your payment.
2. Pay by phone: You can also pay your estimated taxes by phone using the EFTPS at 1-800-829-1040.
3. Pay by wire transfer: You can pay your estimated taxes by wire transfer through your bank or financial institution.
4. Pay in person: If you prefer to pay in person, you can visit a local IRS office or a participating financial institution.

Remember to keep a record of your payment, including the date, amount, and method of payment, in case you need to verify it later.

It's always a good idea to plan ahead and make your estimated tax payments on time to avoid any potential penalties or issues.