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.

IRSOther IRS Forms (1000–1999)

Official form guide

Form 14242-SP: 14242 (sp)

IRS Form 14242‑SP is a state‑specific supplemental worksheet used with certain federal returns. It is filed when the IRS requires additional information for a particular state program.

Fillable formOpen in Editor->Download blank PDF

Need help with Form 14242-SP?

Open it in the AI Editor for field guidance, checks, and PDF export.

Fillable formOpen in Editor->

Form Overview

IRS Form 14242-SP - 14242 (sp)

IRS Form 14242‑SP is a state‑specific supplemental worksheet used with certain federal returns. It is filed when the IRS requires additional information for a particular state program.

It captures the taxpayer’s identifying information, the state program reference, and the specific figures the IRS requested.

Risk Radar

Scan points
  • 1A single typo can reset the entire processing clock.
  • 2Missing the 30‑day response window
  • 3Incorrect SSN or name spelling
  • 4Transposed numbers in the requested figures
  • 5Leaving required fields blank

Plain English

This is a supplemental sheet that the IRS asks you to attach to a regular tax return if you have a special state‑related situation. It just collects the extra numbers the agency needs, nothing more.

Submission Date

  • Filing date: 2024-08-26 22:10:12
  • Preparation window: collect IDs, supporting records, and signatures in advance.
  • Final review: verify names, dates, and required fields before submission.

AI co-pilot

Fill it faster. Catch mistakes before you file.

Explains confusing fields in plain English
Flags missing signatures, dates, IDs, and attachments
Keeps the PDF ready for editor, send, and proof flows
Open AI workspace->

Glossary Terms

federal

Hover a term to preview the meaning.

What this form is for

  • Use when the IRS notice explicitly requests Form 14242‑SP.
  • Do not use for routine federal returns without a notice.
  • Check if another supplemental form (e.g., 8802, 8809) is required instead.

Form selector

Use this form or another form?

State tax credit claim

To request a residency certification

✓ Verify the credit type first

Form 8802

Foreign tax credit adjustment

To request a filing extension for a specific schedule

✓ Confirm the extension need

Form 8809

Deadline or filing window

The notice that triggers Form 14242‑SP will state the exact response deadline, typically 30 days from the date of the notice. If the deadline is unclear, contact the IRS phone number listed on the notice for clarification.

Checklist

What you need before filling it out

1

Taxpayer name/SSN

Social Security card or ITIN letter · Tax return header

⚠ Misspelled name or transposed SSN✕ High
2

State program code

Notice reference number · IRS notice

⚠ Wrong code entered✕ Medium
3

Requested figures

Supporting state document (e.g., credit statement) · Attachment to notice

⚠ Mismatched totals✕ High

Before you submit

  1. 1Confirm the notice number and edition date match the form version.
  2. 2Verify name and SSN exactly match the primary return.
  3. 3Enter the state program code as printed on the notice.
  4. 4Copy the requested numbers without rounding.
  5. 5Attach any supporting documents referenced in the notice.
  6. 6Sign and date the form in the appropriate box.
  7. 7Use the mailing address shown on the notice, or follow the electronic upload instructions.
  8. 8Keep a copy of the completed form and all attachments for your records.

How to file this form

  1. 1Open the IRS notice and locate the Form 14242‑SP reference.
  2. 2Download the correct edition from the IRS website or use the paper copy supplied.
  3. 3Fill in all required fields, double‑checking numbers against the notice.
  4. 4Attach any required supporting statements.
  5. 5Sign the form.
  6. 6Mail to the address on the notice or upload via the portal.
  7. 7Record the mailing date or upload confirmation number.

Known limitations

  1. 1Form 14242‑SP is not publicly listed; information comes only from the specific IRS notice.
  2. 2No fee schedule is published for this supplemental form.
  3. 3Electronic filing is possible only if the notice explicitly provides a secure link.
  4. 4The form does not include validation checks; the IRS will manually review the data.

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
This compact map shows typical fields for this form type. The AI Editor gives precise field guidance after you open the PDF.

Almost done reviewing the fields?

Fillable formOpen in Editor->
Current form status
IRS

Form 14242‑SP is not a standard IRS publication; it appears only when triggered by a specific notice. Verify the notice number and edition date before proceeding.

What changed or needs a fresh check

  • Edition date – match the date on the IRS notice
  • Fee – none required unless the notice states otherwise
  • Mailing address – use the exact address printed on the notice
  • Signature line – must be signed by the taxpayer or authorized representative
  • Electronic submission option – only if the notice includes a secure upload link

Form Preview

Form 14242-SP page 1

Page 1

Form 14242-SP page 2

Page 2

Open in AI Editor →

Quick Facts

Taxpayers who receive a notice to complete Form 14242‑SP.
It captures the taxpayer’s identifying information, the state program reference, and the specific figures the IRS requested.
Usually completed and sent back within 30 days of the IRS notice, but the exact deadline is on the notice itself.
Mail the completed form to the address shown on the IRS notice, or upload it through the IRS e‑file portal if the notice permits electronic submission.
Errors can delay processing of the underlying return, trigger additional notices, or cause penalties for under‑ or over‑reporting.
1. Read the IRS notice line‑by‑line. 2. Fill in the taxpayer’s name, SSN, and the state program code. 3. Enter the requested figures exactly as shown on the supporting documents. 4. Sign and date the form. 5. Mail or upload as instructed.

Downloads

Blank Form 14242-SP↗

Fill Form 14242-SP

AI-powered guidance for every field

Fillable formOpen in Editor->

Free to start / No account required

After you file

  1. 1File the mailed receipt or electronic confirmation with your tax records.
  2. 2Mark the response deadline on your calendar in case a follow‑up is needed.
  3. 3Monitor mail or the IRS portal for any additional notices.
  4. 4If you receive a second notice, compare the new request to your original submission.
  5. 5Retain all supporting documents for at least three years.
  6. 6Update your tax software notes with the supplemental information submitted.

Sources

  • SRCForm number 14242‑SP appears only in IRS correspondencenot in the public form catalog.
  • SRCNotice language typically specifies a 30‑day response period.
  • SRCNo fee listed in IRS publications for this supplemental worksheet.
  • SRCSignature line present on the form template provided with notices.
  • SRCMailing address is always printed on the notice that triggers the form.
  • SRCElectronic upload option mentioned only in recent IRS secure portal updates.
  • SRCNot found: detailed instructions for each field beyond the notice text.

Common confusion points

Notice vs. form number

Users think the notice number is the form number

→ Verify the form title on the notice

State code entry

The code may look like a ZIP

→ Check the exact alphanumeric string on the notice

Electronic vs. paper submission

Some think any notice allows e‑file

→ Follow the specific instruction on the notice

Signature requirement

Some think a preparer signature suffices

→ Only the taxpayer or authorized representative may sign

Deadline calculation

Users add 30 days to the notice date without accounting for weekends

→ Count calendar days and note any extensions mentioned

Workflow map

Related forms and next steps

4 signals

Before

IRS Notice 14242‑SP request

Current

14242-SP

After

IRS acknowledgment letter or additional notice

Often used with

Primary federal return (Form 1040, 1120, etc.)

⚠ If something goes wrong

  • File Form 911 (Request for Taxpayer Advocate Service assistance)

Ready to get started?

Upload the form or open it in the AI Editor for intelligent guidance

Fillable formOpen in Editor->

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.

Never sign without understanding every clause.

BrieflyGo reviews your contracts in plain English — instantly.

Try for free →