Small Business Income Forms

Underpayment of Estimated Tax for Small Business Income

Extension (Electronic) Payment Small Business Income Tax Returns Only

The SBI tax return must be filed with the regular income tax return to be accepted. If the taxpayer does not file both returns together, the election may be denied and the adjustment to federal adjusted gross income may be disallowed.

The same taxpayer information and address is required on both Form 140 and Form 140-SBI to be validated and processed.

A taxpayer electing to report small business income on Form 140-SBI, Form 140NR-SBI or Form 140PY-SBI and mailing a voluntary or mandatory estimated tax payment for a small business tax return must use Arizona Form 140ES-SBI to make a payment for their small business tax return.

Arizona requires certain individuals to make small business income estimated tax payments. Taxpayers are required to make estimated payments (starting with 2022) if their small business tax liability will exceed $1,000 (SBI tax less allowable credits).

Form is used by a small business who electronically files a small business income tax return (Form 140-SBI) and is separately mailing payment for taxes not remitted with the tax form, when filed.

Use Arizona Form 204-SBI only to make an extension payment for your Small Business Income Tax Return (140-SBI, 140NR-SBI, or 140PY-SBI). If you are not making an extension payment for your small business income tax return do not file this form.

Do not use Form 204-SBI to request an extension to your Arizona Small Business Income Tax Return.

Use the Arizona Form 140X-SBI to correct a small business income tax (Arizona Form 140-SBI, 140NR-SBI, or 140PY-SBI).

If you are amending a return for any other tax year, use the amended return (Form 140X-SBI) that is available for that specific tax year.

Form 140X-SBI will be your new tax return. This return will change your original return to include the new information. The entries you make on Form 140X-SBI are the entries you would have made on your original small business income tax return had it been done correctly.

The SBI tax return must be filed with the regular income tax return to be accepted. If the taxpayer does not file both returns together, the election may be denied and the adjustment to federal adjusted gross income may be disallowed.

The same taxpayer information and address is required on both Form 140 and Form 140-SBI to be validated and processed.

The SBI tax return must be filed with the regular income tax return to be accepted. If the taxpayer does not file both returns together, the election may be denied and the adjustment to federal adjusted gross income may be disallowed.

The same taxpayer information and address is required on both Form 140-PY and Form 140-SBI to be validated and processed.

The SBI tax return must be filed with the regular income tax return to be accepted. If the taxpayer does not file both returns together, the election may be denied and the adjustment to federal adjusted gross income may be disallowed.

The same taxpayer information and address is required on both Form 140NR and Form 140-SBI to be validated and processed.