The Internal Revenue Service (IRS) collects taxes and enforces tax laws.

Estimated tax payments are due as follows:

• January 1 to March 31 | April 15
• April 1 to May 31 | June 15
• June 1 to August 31 | September 15
• September 1 to December 31

Options on how to pay include:

• Full and partial payments, including payments toward a payment plan (including installment agreement)
• Online, through an account
• Bank account
• Debit Card, Credit Card, or Digital Wallet 
• Business Payments or Schedule Estimated Payments with the Electronic Federal Tax Payment System (EFTPS)
• Same-Day wite
• Check or money order
• Cash

Web pages

• Home - https://www.irs.gov/
• Estimated Taxes - https://www.irs.gov/faqs/estimated-tax
• How to Pay - https://www.irs.gov/payments
• Where to Mail Payments - https://www.irs.gov/filing/california-where-to-file-addresses-for-taxpayers-and-tax-professionals