CA Form 3519 (2022)

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What is CA Form FTB 3519

Form FTB 3519, also known as the Payment for Automatic Extension for Individuals, is used to pay any estimated taxes owed when filing for an automatic 6-month extension for California individual income tax returns.

Who needs to file Form FTB 3519

You need to file form FTB 3519 if:

  1. You are requesting an automatic 6-month extension to file your California income tax return.
  2. You expect to owe additional taxes when filing your return.
  3. You want to pay your estimated tax balance due to avoid penalties and interest.

How to Fill Out CA Form FTB 3519

Filling out form FTB 3519 is easy when you follow these steps:

  1. Enter your Social Security Number or Individual Taxpayer Identification Number.
  2. Check the fiscal tax year box if applicable.
  3. Enter the amount of payment you are making for your estimated tax balance due.
  4. Choose your payment method - electronic payment or check payment.
  5. For check payments, provide bank routing and account numbers.
  6. Date and sign the form. Also include a daytime phone number.

Helpful Tips:

  • Double-check your Social Security or ITIN number to avoid processing delays.
  • When estimating taxes owed, review your prior year tax return as a guide.
  • For electronic payments, have your bank account information handy.
  • Print and keep a copy of the completed form for your records.

Electronic payment requirements for Form FTB 3519

California requires certain taxpayers to make their extension payments electronically. You must pay electronically if:

  • You are required to make estimated payments online.
  • The tax balance due with your extension is $20,000 or more.

Electronic payment options include:

  • Direct debit from your checking or savings account.
  • Debit or credit card payment through FTB's online payment service.
  • Electronic check (eCheck) from your bank account.

Consequences of Not Filing Form FTB 3519

If you do not file form FTB 3519 and pay your estimated taxes by the deadline, you may face:


  • Late payment penalty - 5% plus interest for each month the payment is late.
  • Underpayment penalty - 5% of the unpaid tax.
  • Interest charges on any taxes owed to the FTB.

To avoid penalties and interest, be sure to:

  • File form FTB 3519 and pay any estimated taxes owed by the tax deadline.
  • Request an extension if more time is needed to prepare and file your tax return.
  • Pay as much of your estimated tax due as possible with the extension request.

Filing form FTB 3519 is crucial for California taxpayers who need more time or expect to owe additional taxes. Follow the tips above to avoid unnecessary penalties and interest charges. Consult with a tax professional if you need help determining what you may owe.

Form Versions

2020 Fillable California Form 3519 for 2020 Fill Out Form

Fillable online CA Form 3519 (2022)
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