Fill Out Form 540 Online in 2025

Complete your California tax return accurately this year
Get Form
Great stars

Get your Form 540

  • fast pdf converter

    1. Open the form

    Access the pre-loaded form directly in our PDF editor. No need to upload anything!
  • secure pdf

    2. Fill in your details

    Carefully complete all required fields to ensure accuracy and validity.
  • powerful editor

    3. Download as PDF

    Save your filled-out form in PDF format, ready for submission or other needs.

What is Form 540?

Form 540, the California Resident Income Tax Return, is essential for residents to report their income and determine state tax obligations. This form ensures compliance with California tax laws, allowing you to claim eligible credits and itemize deductions such as mortgage interest and charitable contributions. By accurately completing Form 540, you can avoid penalties and possibly lower your tax bill. If you earn taxable income in California or from other sources, filing this form is crucial for staying on top of your state taxes.

What is Form 540 used for?

Form 540 is key for California residents filing their state taxes. Here's what it's used for:

  • Reporting Income: To report all types of income earned by California residents.
  • Claiming Deductions: To claim deductions and credits for state tax purposes.
  • Adjusting Federal Income: To adjust federal adjusted gross income and itemized deductions according to California law.
  • Determining Tax Liability: To calculate how much income tax is owed to the state of California.
  • Filing Estimated Tax: To determine if estimated tax payments are required and figure the necessary amounts.

How to fill out Form 540?

fill pdf form
  1. 1

    Determine if you have a filing requirement based on your gross income and filing status.

  2. 2

    Choose the correct form: Form 540 for full-year residents, Form 540 2EZ for simple returns, or Form 540NR for nonresidents/part-year residents.

  3. 3

    Gather necessary information from your federal tax return.

  4. 4

    Complete the form, including income, deductions, and required adjustments.

  5. 5

    Review the form for accuracy before downloading.

Who is required to fill out Form 540?

California residents and joint filers are responsible for completing Form 540. Homeowners and seniors may also fill it out to claim specific deductions and credits related to their status.

After completion, residents and joint filers submit the form to the California Franchise Tax Board (FTB) to report income taxes and claim applicable deductions and credits.

When is Form 540 not required?

You don’t need to file Form 540 if you aren't required to submit a California income tax return. This includes individuals with no taxable income, those exempt from withholding, and non-residents. If you reside in another state and only visit California for military spouse support, you may also qualify for exemption.

When is Form 540 due?

The deadline for Form 540 is April 15, 2025. This is the standard due date for most California residents. If you require additional time to file, you may request an extension, which will move the deadline to October 15, 2025.

How to get a blank Form 540?

To get a blank Form 540, simply visit our platform. The California Franchise Tax Board issues this form, and we have a pre-loaded version ready for you to fill out. Remember, our website helps with filling and downloading but not filing forms.

How to sign Form 540?

To sign Form 540, you must provide a handwritten signature and date it at the bottom of the last page. Remember, electronic and digital signatures are not accepted. After filling out the form using PDF Guru, download it to keep a copy for your records. For the latest updates, always check official sources. Keep in mind that PDF Guru does not support submission of forms, so be sure to handle that separately.

Where to file Form 540?

To submit Form 540, mail your completed form to the Franchise Tax Board. If you are not making a payment, send it to PO Box 942840.

If you are including a payment, use PO Box 942867. Remember, Form 540 must be submitted by mail; online filing is not available.

Trusted and certified by industry leaders

PDF Guru certified by dmca, google safe browsing, pdf association, norton, CCPA, ssl encryption, PCI, GDPR

Frequently asked questions

  • What is the difference between Form 540 and Form 540 2EZ?

    Form 540 is the standard California Resident Income Tax Return, while Form 540 2EZ is a simplified version designed for full-year residents with straightforward income such as wages, interest, and unemployment compensation. Form 540 2EZ is applicable if you have zero to three dependents and your income does not exceed specific limits.

  • Which Form 540 should I use?

    Use Form 540 if you have dependents, are married filing separately, or have more complex income situations. Opt for Form 540 2EZ if you are a full-year California resident with simple income, no dependents, and your income does not exceed the specified limits.

What users are saying about our online tool

Great stars
Based on 11617 reviews
trustpilot logo