Form 100x: Fill out & sign online

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Click ‘Get Form’ to open the 100x form in the editor.
Begin by entering the taxable year at the top of the form. Specify whether it is for a calendar year or a fiscal year by filling in the appropriate dates.
Fill in your corporation's name and California corporation number. Ensure that all details are accurate to avoid processing delays.
Complete the address section, including street address, city, state, and ZIP code. If applicable, include foreign country information.
Answer the questions in Section A through E regarding IRS filings and amendments. Select 'Yes' or 'No' as appropriate.
In Part I, report your net income (loss) before state adjustments and any additions or deductions from net income. Combine these figures to find your net income after adjustments.
Proceed to Part II to compute tax, penalties, and interest based on your net income for tax purposes. Follow instructions carefully for each line item.
Finally, review all sections for accuracy before signing and submitting your amended return.

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Versions	Form popularity	Fillable & printable
2022	4.1 Satisfied (50 Votes)
2021	4.8 Satisfied (84 Votes)
2020	4.3 Satisfied (58 Votes)
2019	4.3 Satisfied (232 Votes)
2018	4.3 Satisfied (131 Votes)
2015	4.1 Satisfied (34 Votes)

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Can I sign my 100x form with my mobile phone?

Of course, it is possible with DocHub. This reliable and compliant online editor has a phone-based signing option. After you log in to your DocHub account and import your 100x form to our editor, complete all empty areas and utilize the Sign feature on the top barf. Click on Create your signature and choose Phone from the available options. Here, you scan a QR code using your smartphone and draw your signature on your phone display, as you usually do when signing physical papers. If you access DocHub right from your mobile device, you can electronically sign your form by drawing your eSignature, uploading its photo, or simply with a typed name.

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