1042 Forms › Form 1042-S › Form 1042-S Instructions: Line-by-Line Filing Guide 2026
At a Glance
IRS Form 1042-S Instructions: Line-by-Line Filing Guide
Form 1042-S reports U.S. source income paid to foreign persons and the tax withheld. This guide walks you through every box on the form with clear instructions for accurate completion.
Form 1042-S is more complex than domestic information returns because it must account for tax treaty benefits, Chapter 3 withholding, and Chapter 4 (FATCA) withholding. Accurate completion requires understanding income codes, exemption codes, and recipient status codes.
Form 1042-S Box Overview
Form 1042-S contains the following main sections:
- Boxes 1-2: Income type code and gross income amount
- Boxes 3-4: Chapter 3 and Chapter 4 exemption codes and tax rates
- Boxes 5-6: Withholding allowances
- Box 7: Federal tax withheld
- Boxes 8-11: Withholding agent information
- Box 12: Withholding agent's Chapter 4 status
- Boxes 13-17: Recipient information and status codes
- Boxes 18-21: Intermediary and NQI information
- Boxes 22-24: State reporting information
Box 1: Income Code
Enter the two-digit code identifying the type of income paid. Common income codes include:
| Code | Income Type |
|---|---|
| 01 | Interest paid by U.S. obligors - general |
| 04 | Interest on real property mortgages |
| 06 | Dividends paid by U.S. corporations - general |
| 07 | Dividends qualifying for direct dividend rate |
| 10 | Royalties - industrial (know-how) |
| 11 | Royalties - motion pictures/TV |
| 12 | Royalties - other (copyrights) |
| 14 | Real property income and natural resources royalties |
| 15 | Pensions, annuities, alimony |
| 16 | Scholarship or fellowship grants |
| 17 | Independent personal services |
| 18 | Dependent personal services |
| 19 | Compensation for teaching |
| 20 | Compensation during studying/training |
| 28 | Gambling winnings |
| 50 | Other income |
Use a separate Form 1042-S for each type of income paid to the same recipient.
Box 2: Gross Income
Enter the total gross income paid to the foreign person before any withholding or deductions.
- Report the full amount paid, not the net amount after withholding
- Use U.S. dollars; convert foreign currency using appropriate exchange rates
- For dividends, report gross dividends without reduction for foreign taxes
- For compensation, report total wages before any deductions
Box 3a-3b: Chapter 3 Status
Box 3a: Chapter 3 Exemption Code - Enter the two-digit code explaining why withholding is reduced or exempt under Chapter 3:
- 00: Not exempt (30% withholding applies)
- 01: Income exempt under IRC (e.g., portfolio interest)
- 02: Exempt under tax treaty
- 03: Income is not from U.S. sources
- 04: Exempt under IRC (various provisions)
- 05: Portfolio interest exempt under IRC Section 881(c)
Box 3b: Tax Rate - Enter the withholding rate applied (e.g., "30.00" for 30%, "15.00" for 15% treaty rate).
Box 4a-4b: Chapter 4 (FATCA) Status
Box 4a: Chapter 4 Exemption Code - Enter the two-digit FATCA exemption code:
- 00: Not applicable or not a withholdable payment
- 01: Payee is a U.S. person
- 02: Payee not subject to withholding under Chapter 4
- 03: Effective connected income
- 04: Exempt per treaty
- 13: Exempt recipient (foreign government, etc.)
- 14: Payee is participating FFI
- 15: Payee is registered deemed-compliant FFI
Box 4b: Tax Rate - Enter the Chapter 4 withholding rate if applicable.
Box 7: Federal Tax Withheld
Enter the total federal income tax withheld from the gross income reported in Box 2.
- This amount should equal Box 2 multiplied by the applicable withholding rate(s)
- If no tax was withheld (due to exemption or treaty), enter 0.00
- Report total withholding from both Chapter 3 and Chapter 4
- Do not include state tax withheld here (report in Box 24)
Boxes 8-11: Withholding Agent Information
Enter the withholding agent's identifying information:
- Box 8: Withholding agent's EIN (Employer Identification Number)
- Box 9: Withholding agent's name
- Box 10: Withholding agent's Global Intermediary Identification Number (GIIN) if applicable
- Box 11: Country code of the withholding agent
The withholding agent is the U.S. person who pays the income and withholds the tax.
Box 12a-12c: Withholding Agent Chapter 4 Status
Identify the withholding agent's status for FATCA purposes:
- Box 12a: Chapter 4 status code (e.g., U.S. withholding agent, participating FFI, etc.)
- Box 12b: GIIN if the withholding agent is an FFI
- Box 12c: Country code
Boxes 13-17: Recipient Information
Enter the foreign recipient's identifying information:
- Box 13a-g: Recipient's Chapter 3 and Chapter 4 status codes
- Box 13h: Recipient's GIIN (if applicable)
- Box 13i: Recipient's foreign TIN
- Box 13j: LOB code (Limitation on Benefits provision code)
- Box 14: Recipient's name
- Box 15: Recipient's country code
- Box 16: Recipient's address
- Box 17: Recipient's U.S. TIN (if any)
Recipient status codes are critical for proper reporting. Common codes include "01" for individual, "02" for corporation, "03" for partnership, etc.
Boxes 22-24: State Reporting
For state tax reporting:
- Box 22: State code (two-letter abbreviation)
- Box 23: State identification number
- Box 24: State income tax withheld
Complete these boxes only if state income tax was withheld from payments to the foreign recipient.
How to E-File Form 1042-S
E-file your Form 1042-S with the IRS using BoomTax. Our platform validates your data and ensures proper code usage for accurate international tax reporting.
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You can import your data as Excel, XML, or use files from popular payroll providers like QuickBooks, UKG, ADP, and many more.
Step-By-Step Wizard
We walk you through the process with no complicated jargon. You can also live chat with a real person as you work on your filing for hands-on help.
E-File & Mail Employee Copies
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Related 1042-S Resources
- What is Form 1042-S?: Overview and requirements
- Form 1042-S Due Dates: Filing deadlines
- E-File Form 1042-S Online: Electronic filing
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BoomTax and its affiliates do not provide tax, legal, or accounting advice. This material has been prepared for informational purposes only, and is not intended to provide, and should not be relied on for, tax, legal, or accounting advice. You should consult your own tax, legal, and accounting advisors prior to engaging in any transaction.