
Get the free Form 100X
Show details
This document provides instructions for corporations to amend a previously filed California Corporation Franchise or Income Tax Return, claim refunds, and inform the Franchise Tax Board of changes
We are not affiliated with any brand or entity on this form
Get, Create, Make and Sign form 100x

Edit your form 100x form online
Type text, complete fillable fields, insert images, highlight or blackout data for discretion, add comments, and more.

Add your legally-binding signature
Draw or type your signature, upload a signature image, or capture it with your digital camera.

Share your form instantly
Email, fax, or share your form 100x form via URL. You can also download, print, or export forms to your preferred cloud storage service.
How to edit form 100x online
To use our professional PDF editor, follow these steps:
1
Register the account. Begin by clicking Start Free Trial and create a profile if you are a new user.
2
Prepare a file. Use the Add New button. Then upload your file to the system from your device, importing it from internal mail, the cloud, or by adding its URL.
3
Edit form 100x. Rearrange and rotate pages, add and edit text, and use additional tools. To save changes and return to your Dashboard, click Done. The Documents tab allows you to merge, divide, lock, or unlock files.
4
Save your file. Choose it from the list of records. Then, shift the pointer to the right toolbar and select one of the several exporting methods: save it in multiple formats, download it as a PDF, email it, or save it to the cloud.
With pdfFiller, it's always easy to deal with documents.
Uncompromising security for your PDF editing and eSignature needs
Your private information is safe with pdfFiller. We employ end-to-end encryption, secure cloud storage, and advanced access control to protect your documents and maintain regulatory compliance.
How to fill out form 100x

How to fill out Form 100X
01
Obtain Form 100X from the official website or designated office.
02
Fill out your personal information at the top of the form, including your name, address, and tax identification number.
03
Indicate the tax year for which you are filing the amended return.
04
Complete the sections that require you to report the changes from your original return.
05
Include any necessary supporting documentation that justifies the changes you are making.
06
Review the form for accuracy and completeness.
07
Sign and date the form to certify that the information provided is true and correct.
08
Submit the completed Form 100X to the appropriate tax authority as instructed.
Who needs Form 100X?
01
Individuals or entities who need to amend their previously filed tax returns due to errors or updates.
02
Taxpayers who want to claim additional deductions or credits that were missed in the original filing.
03
Anyone who needs to correct their filing status, income, or any other relevant tax information.
Fill
form
: Try Risk Free
People Also Ask about
What is the CA 100 tax?
What Is CA Form 100? The California Corporation Franchise or Income Tax Return serves as a tax document for corporations functioning in California. Its purpose is to declare income, compute tax liability, and meet tax responsibilities to the state.
What is the difference between form 100 and 100W in California?
Form 100 California Corporation Franchise or Income Tax Return is the regular return for CA corporations. Form 100W California Corporation Franchise or Income Tax Return--Water's-Edge Filers can be filed by combined groups that meet the requirements.
What is California Form 100X?
Purpose. Use Form 100X to amend a previously filed Form 100, Form 100S, or Form 100W. A claim for refund of an overpayment of tax should be made by filing Form 100X.
Who must file CA form 100?
Who is Required to File Form 100 ? Corporations organized in California or doing business in the state must file Form 100. This includes California-based corporations and out-of-state corporations conducting business within California.
What is the California tax form 100S?
General Information. Form 100S is used if a corporation has elected to be a small business corporation (S corporation). All federal S corporations subject to California laws must file Form 100S and pay the greater of the minimum franchise tax or the 1.5% income or franchise tax.
What is form 100 es California?
Use Form 100-ES to figure and pay estimated tax for a corporation. Estimated tax is the amount of tax the corporation expects to owe for the taxable year.
For pdfFiller’s FAQs
Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.
What is Form 100X?
Form 100X is an amended corporate income tax return used by corporations in California to correct errors on a previously filed Form 100, California Corporation Franchise or Income Tax Return.
Who is required to file Form 100X?
Any corporation that has previously filed Form 100 and needs to make corrections or amendments to that return, such as changes in income, deductions, or credits, is required to file Form 100X.
How to fill out Form 100X?
To fill out Form 100X, a corporation needs to complete the form by providing the correct information and attaching a copy of the original Form 100, along with any supporting documents for the changes being made. It should be filed with the California Franchise Tax Board.
What is the purpose of Form 100X?
The purpose of Form 100X is to provide corporations with a mechanism to amend their original tax returns to ensure accurate reporting and compliance with California tax laws.
What information must be reported on Form 100X?
Form 100X must include the corporation's name, address, federal employer identification number, the tax year for which the amendment is being filed, the original amounts reported, the corrected amounts, and a detailed explanation of the changes being made.
Fill out your form 100x online with pdfFiller!
pdfFiller is an end-to-end solution for managing, creating, and editing documents and forms in the cloud. Save time and hassle by preparing your tax forms online.

Form 100x is not the form you're looking for?Search for another form here.
Relevant keywords
Related Forms
If you believe that this page should be taken down, please follow our DMCA take down process
here
.
This form may include fields for payment information. Data entered in these fields is not covered by PCI DSS compliance.