Where does the ITIN go on Form W-7?

Form W-7 is the application for an ITIN, so applicants do not yet have one. Leave the "Renew an existing ITIN" box and the existing ITIN line blank if applying for the first time. Renewal applicants enter their existing ITIN in the renewal field on line 6e and 6f.

Where do I put my ITIN on Form W-8BEN?

The ITIN goes on line 5 of Form W-8BEN, labeled "U.S. taxpayer identification number (SSN or ITIN), if required." Enter the 9-digit ITIN in 9XX-XX-XXXX format. This field is what allows the US payer to apply a treaty rate instead of 30 percent default withholding.

Where does the ITIN appear on Form 1099-NEC?

Form 1099-NEC is issued by the payer to the recipient. The recipient's ITIN goes in the "Recipient's TIN" box on the upper left of the form. The payer fills this in based on Form W-9 (or W-8BEN for non-residents) that the recipient previously provided.

Where do dependents' ITINs go on Form 1040?

Dependent ITINs go in the dependents section of Form 1040, in the column labeled "Social security number." Each dependent line accepts an ITIN in the same format as the primary taxpayer's. The IRS uses the ITIN to verify dependency claims and credits.

Updated June 25, 2026

Where to Write Your ITIN on IRS Tax Forms: Every Form Covered

Where Does Your ITIN Go on Each Major IRS Form?

Form	Where ITIN Goes	Purpose
Form 1040	SSN field, top of page 1	US individual tax return
Form 1040-NR	SSN field, top of page 1	Non-resident tax return
Form W-7 (renewal)	Line 6e and 6f	ITIN renewal application
Form W-8BEN	Line 5	Treaty benefit certification
Form 1099-NEC	Recipient's TIN box	Non-employee compensation
Form 8233	Line 2 (US TIN)	Treaty exemption (personal services)
Form 1042-S	Recipient TIN field, box 13e	Foreign person US-source income
Schedule C (Form 1040)	Filer ITIN (from 1040 top)	Self-employment income

For the underlying concept, see ITIN number on tax return.

What Format Should Your ITIN Be Written In?

ITINs are written in the same format as SSNs: 9XX-XX-XXXX. The first digit is always 9. The middle two digits fall in specific IRS-assigned ranges. Hyphens are required on paper forms; digital tax software adds them automatically. Never write the ITIN with spaces or omit the hyphens.

How Do You Enter the ITIN When Filing Electronically?

E-filing software (TurboTax, H&R Block, Free File Fillable Forms) accepts ITINs anywhere an SSN would be entered. The software validates the 9 prefix and middle-digit range. If the ITIN is rejected, double-check it against your CP565 letter. Expired ITINs trigger an e-file rejection until renewed.

What If You Are Filing for Multiple Family Members?

Primary taxpayer ITIN: top of Form 1040 in the "Your SSN" field.
Spouse ITIN (if filing jointly): top of Form 1040 in the "Spouse's SSN" field.
Dependent ITINs: each line in the Dependents section, in the SSN column.
Each ITIN must be valid and current. Expired dependent ITINs may disqualify credits.

What Happens If You Put Your ITIN in the Wrong Field?

The IRS rejects returns that have the ITIN in fields requiring an SSN-only identifier (such as Social Security wage records). Common errors include placing the ITIN in W-2 box (a) instead of leaving it blank, or entering an ITIN in payroll software when the worker should have an SSN. Verify with your preparer if uncertain.

How Do You Verify the ITIN Was Entered Correctly?

Cross-check the digits against your CP565 letter every time. The 9-digit string must match exactly. After filing, check the IRS Where's My Refund tool using the ITIN; if the tool accepts the ITIN and returns tracking data, the entry was correct.

Frequently Asked Questions

The ITIN goes in the SSN field at the top of Form 1040, just below your name. The field is labeled "Your social security number" - enter the 9-digit ITIN in the same XXX-XX-XXXX format. If filing jointly, your spouse's ITIN (or SSN) goes in the adjacent spouse SSN field.

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