Independent form guide. BrieflyGo is not affiliated with or endorsed by IRS, USCIS, SSA, DOL, or any U.S. government agency. Official forms are sourced from public government websites.
Official form guide
IRS Form 8453-S is the U.S. S Corporation Income Tax Declaration for an IRS e-file Return, used to authenticate electronic returns filed by a corporation. This form specifies consent for direct deposit or authorizes electronic withdrawal.
Need help with Form 8453S?
Open it in the AI Editor for field guidance, checks, and PDF export.
Need help? AI Editor guides you through every field of Form 8453S.
Start filling →Form Overview
IRS Form 8453-S is the U.S. S Corporation Income Tax Declaration for an IRS e-file Return, used to authenticate electronic returns filed by a corporation. This form specifies consent for direct deposit or authorizes electronic withdrawal.
Plain English
This form confirms that a company's tax return has been submitted electronically to the IRS. By filing Form 8453-S, the company agrees to have its refund deposited directly or allows the government to pull taxes owed from its bank account. It ensures the electronic submission is official and accurate.
Submission Date
AI co-pilot
Glossary Terms
Hover a term to preview the meaning.
Form selector
Filing through ISP/Transmitter without ERO
Required to authorize transmission and provide consent for refund/withdrawal.
✓ Check that Part I data matches the Form 1120-S totals.
Filing through ERO using PIN signature
This form allows an ERO to obtain authorization via a PIN instead of completing Form 8453-S.
✓ Ensure the PIN selected on Form 8879-S is correctly referenced.
Paid Preparer entering PTIN
Anyone paid to prepare the return must enter their PTIN in Part III, referencing Form W-12 for details.
✓ Verify that the PTIN entered matches the one associated with the preparer's registration.
The Form 8453-S must be filed with the corporation’s electronically filed income tax return. The source specifies this requirement for calendar year 2021, or a tax year beginning 2021 and ending 20. No specific extension period is noted in the excerpt.
Checklist
Gross receipts or sales less returns and allowances
Form 1120-S, line 1c · Part I
Part II Declaration of Officer
Corporate officer signature/consent · Part II
Payment Authorization (Part II, section c)
Contact number 888-353-4537 · Part II
Who Must File (ISP/Transmitter without ERO)
Form 8453-S itself · General Instructions
Declaration Signatories
President, VP, Treasurer, etc. · Part II
Refund Issuance Timeline
Within 3 weeks after accepting return · General Instructions
Field map
General Info
2 items
Full legal name and taxpayer identification number (SSN or EIN).
Current mailing address.
Details
2 items
Complete all applicable sections of this form according to the official IRS instructions.
Enter the relevant dollar amount if this form involves tax calculation.
Certification
1 items
Read and acknowledge any certifications required by this form.
Signatures
1 items
Sign and date. Unsigned forms cannot be processed.
Almost done reviewing the fields?
Fillable formOpen in Editor->The current edition is 20/21, which covers calendar year 2021 or a tax year beginning in 2021 and ending in 20XX. For the latest information regarding Form 8453-S, users should check www.irs.gov/Form8453S.
Quick Facts
Downloads
Who must file this form?
If you are filing a 2021 Form 1120-S through an ISP and/or transmitter but not using an ERO, you must file Form 8453-S.
→ Check if your filing method requires it.
Where do I submit this form?
File Form 8453-S with the corporation’s electronically filed income tax return; transmit it as a Portable Document Format (PDF) file via your tax preparation software.
→ Confirm you are attaching the PDF to the e-filed return.
What if the officer checks box 6c for direct deposit?
The officer must ensure that specific financial institution account details are provided in the tax preparation software, such as routing number and debit date.
→ Verify all five required financial details are entered when selecting option 6c.
Do I need to file a paper copy?
No; the form is for an IRS e-file Return, so it must be filed electronically with the corporation’s tax return.
→ Confirm your submission method allows for electronic filing.
What if my preparer is also the ERO?
Do not complete the paid preparer section; instead, check the box labeled “Check if also paid preparer.”
→ Look specifically at Part III of Form 8453-S to confirm this instruction.
How do I authorize direct deposit?
Check box 6a in Part II and ensure you designate the deposit on Form 8050, Direct Deposit of Corporate Tax Refund.
→ Confirm Box 6a is checked if a refund is expected via direct deposit.
Workflow map
Before
Current
After
Often used with
This form confirms that a company's tax return has been submitted electronically to the IRS. By filing Form 8453-S, the company agrees to have its refund deposited directly or allows the government to pull taxes owed from its bank account. It ensures the electronic submission is official and accurate.
A corporation must file Form 8453-S if it is filing a 2021 Form 1120-S through an Intermediate Service Provider (ISP) and/or transmitter without using an Electronic Return Originator (ERO).
Part I collects the corporation's name, EIN, and various income figures like gross receipts or sales. Part II is the Declaration of Officer, which includes consent options for refund direct deposit or electronic funds withdrawal.
The form must be filed with the corporation’s electronically filed income tax return. The source specifies this requirement for calendar year 2021, or a tax year beginning 2021 and ending 20.
File Form 8453-S with the corporation’s electronically filed income tax return using a Portable Document Format (PDF) file. Your tax preparation software will allow you to transmit this PDF file with the return.
First, complete Part I with the corporation's details and income figures. Next, complete Part II by checking one of the consent boxes (a, b, or c). If applicable, a paid preparer must sign in the designated space, and if they are also the ERO, they check that box.
The declaration is based on all information of which the officer has any knowledge; failure to accurately declare these facts means the submission is not properly authenticated.
If you are filing a 2021 Form 1120-S through an ISP and/or transmitter but not using an ERO, you must file Form 8453-S. Check if your filing method requires it.
Source transparency
BrieflyGo links to and explains official public form sources. We are not a government agency, and this page is for general form guidance, not legal advice.
Review risky clauses in plain English, fix the document, and keep it moving toward signature.