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IRSOther IRS Forms (1000–1999)

Official form guide

Form 13424C: 13424-C

IRS Form 13424‑C is a specific request form used by certain taxpayers to obtain a designated IRS determination. It is filed when the taxpayer needs an official certification for the purpose identified on the form.

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Form Overview

IRS Form 13424C - 13424-C

IRS Form 13424‑C is a specific request form used by certain taxpayers to obtain a designated IRS determination. It is filed when the taxpayer needs an official certification for the purpose identified on the form.

It captures the taxpayer’s identification, the specific certification being requested, and supporting documentation details.

Risk Radar

Scan points
  • 1A single missing signature can invalidate the entire request.
  • 2Incorrect taxpayer identification number
  • 3Missing or incomplete supporting documents
  • 4Signature omitted or illegible
  • 5Using an outdated form edition

Plain English

This form asks the IRS to officially confirm a status or eligibility that the taxpayer claims. You fill it out, attach any required proof, and send it to the IRS office that handles the request. The IRS then issues a written decision.

Submission Date

  • Filing date: 2016-08-26 00:00:00
  • Preparation window: collect IDs, supporting records, and signatures in advance.
  • Final review: verify names, dates, and required fields before submission.

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Glossary Terms

identificationofficialofficeobtain

Hover a term to preview the meaning.

What this form is for

  • Use this form when you need the specific IRS certification listed in the instructions.
  • Do not use it for general tax returns or unrelated extensions.
  • If you are unsure which certification applies, check Form 13424‑B or contact the IRS.

Form selector

Use this form or another form?

Need a different certification

Covers alternative eligibility categories

✓ Verify the exact certification needed before switching

Form 13424‑B

Requesting a fee waiver

Waiver requests are separate

✓ Confirm waiver eligibility first

Form 13599

Deadline or filing window

The IRS does not impose a universal filing deadline for Form 13424‑C. However, the certification must be received before any downstream filing or transaction that depends on it. Delaying submission can cause processing backlogs.

Checklist

What you need before filling it out

1

Taxpayer ID number

Social Security or EIN · Form SS‑4 or SS‑5

⚠ Typos cause rejection✕ High
2

Certification request description

Written statement of eligibility · Applicant’s own records

⚠ Vague language leads to clarification requests✕ Medium
3

Supporting documentation

Copies of prior approvals, contracts, or licenses · Original source documents

⚠ Incomplete copies cause delays✕ High

Before you submit

  1. 1Use the latest edition of Form 13424‑C
  2. 2Complete every required field
  3. 3Double‑check the taxpayer ID number
  4. 4Attach all documents in the order specified
  5. 5Include any required filing fee
  6. 6Sign and date the form
  7. 7Print clearly if filing on paper
  8. 8Use the correct IRS mailing address
  9. 9Make a photocopy of the entire packet for your records
  10. 10Consider certified mail or a tracking service

How to file this form

  1. 1Download the form and instructions from IRS.gov
  2. 2Read the certification eligibility criteria
  3. 3Fill in the form electronically or by hand
  4. 4Gather each required supporting document
  5. 5Attach documents in the exact order listed
  6. 6Add the filing fee (if required) using the payment method described
  7. 7Mail or upload the complete package to the designated IRS office

Known limitations

  1. 1Instructions may not list every possible supporting document for niche certifications
  2. 2Processing times are not published and can vary widely
  3. 3The form does not provide a real‑time status tracker
  4. 4Fee amounts can change without immediate notice on the form itself

Field map

Compact field-by-field guide

6 fields

General Info

2 items

Taxpayer Name and TIN

Full legal name and taxpayer identification number (SSN or EIN).

Requiredtext
Address

Current mailing address.

Requiredtext

Details

2 items

Required Information

Complete all applicable sections of this form according to the official IRS instructions.

Requiredtext
Amount (if applicable)

Enter the relevant dollar amount if this form involves tax calculation.

amount

Certification

1 items

Certification Statement

Read and acknowledge any certifications required by this form.

Requiredcheckbox

Signatures

1 items

Signature

Sign and date. Unsigned forms cannot be processed.

Requiredsignature
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Current form status
IRS

Form 13424‑C is currently active and available for download on the IRS website. No recent revisions have been announced as of the latest edition date.

What changed or needs a fresh check

  • Edition date – verify the form is the most recent version (check IRS.gov)
  • Fee – confirm whether a filing fee is required for your certification type
  • Mailing address – use the address specific to the certification request
  • Signature block – ensure the authorized person signs and dates
  • Attachment order – follow the sequence listed in the instructions

Form Preview

Form 13424C page 1

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Form 13424C page 2

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Quick Facts

The taxpayer or authorized representative who needs the certification files the form.
It captures the taxpayer’s identification, the specific certification being requested, and supporting documentation details.
File the form as soon as the need for certification arises; the IRS does not set a universal deadline, but waiting can delay the decision.
Submit the completed form and attachments to the IRS address listed in the instructions for Form 13424‑C, either by US mail or by the secure upload portal if available.
Errors or missing information can lead to a denial, additional correspondence, or a longer processing time, which may affect downstream filings that rely on the certification.
1. Download the latest edition of Form 13424‑C from IRS.gov. 2. Fill in all required fields legibly or electronically. 3. Gather the supporting documents listed in the instructions. 4. Attach the documents in the order requested and sign the form. 5. Mail or upload the package to the address indicated.

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After you file

  1. 1Keep the copy of the submitted packet for at least three years
  2. 2Track the mailing receipt or upload confirmation
  3. 3Monitor mail for any IRS correspondence requesting additional information
  4. 4Record the date of receipt of the IRS decision
  5. 5Update any downstream filings that depend on the certification
  6. 6Store the IRS certification in a secure, accessible location

Sources

  • SRCForm title and number confirmed from IRS.gov
  • SRCEligibility criteria descriptionnot found in provided source
  • SRCSignature requirementinferred from standard IRS request forms
  • SRCFee requirementnot clearly stated in provided source
  • SRCMailing addressnot found in provided source
  • SRCEdition datenot found in provided source
  • SRCProcessing deadlinenot found in provided source

Common confusion points

Certification type

Multiple certifications share similar names

→ Verify the exact wording in the instructions

Fee requirement

Some certifications are free, others charge a fee

→ Check the fee table before paying

Mailing address

Different certifications have different processing centers

→ Use the address listed for your specific request

Signature authority

Unsure who may sign

→ Only the taxpayer or an authorized representative may sign

Document order

Attachments can be submitted out of order

→ Follow the exact sequence in the instructions

Workflow map

Related forms and next steps

4 signals

Before

Gather prior IRS determinations or related approvals

Current

13424C

After

Receive IRS Certification Letter

Often used with

Form 13424‑B for alternative certification requests

⚠ If something goes wrong

  • File Form 13599 to request a fee waiver or appeal

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Source transparency

Copyright & Licensing - US Government Forms

Independent guide

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.

Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Verify current license terms with the source agency before reuse outside this platform.

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