If you’re filing as a self-employed individual or disregarded entity (i.e. single-member LLC, partnership, or S Corp shareholder), you should complete Form 1040-ES. This form contains blank vouchers for mailing your estimated tax payments. You can also make your payments using the Electronic Federal Tax Payment System (EFTPS). For your state payment, you have to search online for the appropriate form, complete it and send it in with your payment.
Corporations must submit their payments using EFTPS, or can arrange for a tax professional, financial institution, payroll service, or other trusted third party to make deposits on their behalf. Here is a link to EFTPS: https://www.eftps.gov/eftps/
