Form 4466 is the IRS’s official Corporation Application for Quick Refund of Overpayment of Estimated Tax. Corporations that have over‑paid their estimated taxes can use this form to request a fast cash refund, helping maintain cash flow and avoid unnecessary interest.
Only corporations (C‑corporations) that have filed a complete tax return for the year in question are eligible. Partnerships, S‑corporations, and individuals must use other refund procedures.
Instead of downloading, printing, and scanning the PDF, simply click the "Fill out this form" button on this page. The Formize PDF Filler will load instantly, allowing you to enter data directly on the screen and submit electronically.
The IRS aims to process Form 4466 within 45 days. You will receive a notice confirming the refund amount or explaining any issues. If you filed an extension for your tax return, it does NOT extend the deadline for Form 4466.
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Form 4466 must be filed before the corporation files its tax return for the year, and the IRS processes it within 45 days of receipt.
Yes. With Formize you can fill and submit the form online; the IRS still receives a paper copy via mail, but the online process speeds up data entry.
A copy of the filed corporate tax return (Form 1120) must be attached to verify the overpayment.
The corporation does not qualify for the quick refund program; you must wait for the standard refund process.
The IRS aims to process the request within 45 days, after which the refund is issued by check or direct deposit.
No. Formize provides the fillable PDF for free; you only pay any standard mailing costs if you choose to mail a paper copy.
If you discover an error, contact the IRS immediately and submit a corrected Form 4466 with a cover letter explaining the change.
Form 4466 is one of Tax forms that are documents used to report information related to taxes to the relevant tax authority. There are various types of tax forms, including federal, state, and local tax forms, which can vary depending on the taxpayer's circumstances and location.
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