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How to Fill Out Form 8802: Line-by-Line Guide and Example

Written by

Form8802.com Team

Published on

10 March 2026

Form 8802, Application for United States Residency Certification, is used to ask the IRS for Form 6166, the certificate that confirms U.S. tax residency for a requested certification year.

Completing Form 8802 correctly requires more than entering basic identifying information. The certification year, tax period, applicant classification, purpose of the request, supporting documents, and signature must all match the applicant's circumstances.

If you prefer to complete the application with guidance as you go, the Form8802.com guided application includes a tooltip for every field explaining what information is being requested. The guide below is intended as a reference for taxpayers who want a line-by-line explanation or are completing Form 8802 manually.

Applicants who need the blank form can review the Form 8802 PDF and filing rules. For a broader overview of filing requirements, review the Form 8802 instructions.

How to Fill Out Form 8802

Form 8802 is organized around the applicant, the year for which U.S. residency certification is requested, the tax return or other information supporting that certification, and the country or countries where Form 6166 will be used.

The entries required for an individual can differ substantially from those required for a corporation, partnership, S corporation, trust, disregarded entity, exempt organization, estate, or other applicant. Before completing the form, confirm who qualifies for Form 6166.

Page 1: Applicant Name and Taxpayer Identification Number

Enter the applicant's name and U.S. taxpayer identification number exactly as they should be associated with the residency certification request.

Individuals generally use an SSN or ITIN, while entities generally use an EIN. The applicant should be the taxpayer or entity whose U.S. residency is being certified, which may be different from the person preparing or submitting the application.

If the Form 8802 user fee was paid electronically through Pay.gov, page 1 must also include the electronic payment confirmation number. The IRS accepts either the Agency Tracking ID or the Pay.gov ID for this purpose.

More information is available in where to enter the Form 8802 payment confirmation number.

Line 2: Applicant's Address

Line 2 asks for the applicant's address for the calendar year for which certification is requested.

This is not simply a mailing-address field. The IRS instructions state that a P.O. box or C/O address should not be entered on line 2. Special rules can also apply to individuals who lived outside the United States during the certification year.

Line 3a: Where Form 6166 Should Be Mailed

Line 3a is used when Form 6166 and related IRS correspondence should be mailed to an address other than the applicant's line 2 address.

If line 3a is left blank, the IRS generally sends Form 6166 to the address on line 2. If the mailing address belongs to a third-party appointee, the required authorization should also be completed.

Line 3b: Third-Party Appointee

Line 3b can authorize the IRS to communicate with another person about the Form 8802 application. The appointee should be someone who can respond to IRS questions about the request.

Form 8821 or Form 2848 may be used instead when broader authorization is appropriate. Form 8821 does not authorize someone to represent the taxpayer before the IRS or sign Form 8802 on the taxpayer's behalf.

The differences are covered in Form 8802 appointee vs. representative.

Line 4: Identify the Type of Applicant

Line 4 identifies the taxpayer classification for the residency certification request. The correct selection matters because different applicant types have different residency, documentation, and penalties-of-perjury requirements.

Categories include individuals, partnerships, trusts, estates, corporations, S corporations, employee benefit plans or trusts, exempt organizations, disregarded entities, and nominee applicants.

Do not select a category simply because it resembles the applicant's business name. The selection should reflect the applicant's federal tax classification.

Line 5: Did the Applicant File a U.S. Income Tax Return?

Line 5 addresses whether the applicant filed the U.S. income tax return relevant to the tax period on which the certification will be based.

If the applicant was not required to file a return, additional information or documentation may be required to explain the filing status. The requirements differ depending on whether the applicant is an individual, trust, estate, partnership, disregarded entity, government entity, or another type of applicant.

Line 6: Parent, Parent Organization, or Owner

Line 6 becomes relevant when the answer to line 5 is "No." Depending on the applicant, the form may require information about a parent, parent organization, or owner.

This is particularly important for disregarded entities because Form 6166 eligibility is generally determined through the U.S. tax status of the owner rather than the disregarded entity itself.

Line 7: Calendar Year of the Form 6166 Request

Line 7 asks for the calendar year or years for which Form 6166 is requested. This is the certification year, not necessarily the tax return year entered on line 8.

One Form 8802 can request the current year and any number of prior years. Fiscal-year taxpayers still request Form 6166 by calendar year.

For more detail, review what tax year for Form 8802.

A request for the next calendar year's certification cannot be submitted too early. The IRS begins accepting those requests on December 1 of the preceding year. Applicants preparing for the next filing season can review when to file Form 8802.

Line 8: Tax Period on Which Certification Is Based

Line 8 is one of the most easily misunderstood parts of Form 8802 because the tax period entered here may be different from the certification year entered on line 7.

If the tax return for the requested certification year is not yet due, the IRS instructs applicants to enter the year and month corresponding to the latest return that was required to have been filed, including extensions.

For a prior-year certification, line 8 generally corresponds to the end of the prior-year tax period for which certification is requested.

For example, a calendar-year taxpayer requesting 20X2 certification in December 20X1 would not base the request on a 20X2 return, because that return has not yet been filed or become due. The appropriate line 8 period will instead depend on the latest return that was required to have been filed at that time.

What If the Most Recent Tax Return Has Not Posted Yet?

A recently filed return may not yet be available in the IRS system when Form 8802 is reviewed.

The IRS states that including a signed copy of a recently filed return may reduce processing time when the return has not yet posted. The copy should be marked "COPY — do not process."

More information is available in tax return with Form 8802.

Line 9: Purpose of the Certification

Line 9 asks why Form 6166 is being requested. The purpose must be included or the IRS can return the application for completion.

A common purpose is claiming benefits under an income tax treaty. Form 6166 can also be requested for certain VAT purposes and other permitted uses.

The country and purpose should be consistent. For example, an application requesting income tax treaty certification for a country that does not have an applicable U.S. income tax treaty can be returned for correction.

Line 10: Penalties-of-Perjury Statements and Attachments

Line 10 is used for required penalties-of-perjury statements and other information that does not fit elsewhere on Form 8802.

Current-year certification requests generally require an appropriate statement confirming that the applicant is a U.S. resident and will continue to be so throughout the current tax year. The required wording and signer depend on the applicant type.

Partnerships, S corporations, trusts, disregarded entities, exempt organizations, estates, and other applicants can have additional or different statement requirements.

Review what to include with Form 8802 before submitting the application.

Signature and Date

Form 8802 must be signed and dated by a person with authority to sign for the applicant. The appropriate signer depends on the applicant type.

Individuals generally sign for themselves. Corporations and S corporations may generally be signed by an authorized corporate officer, while partnerships, trusts, estates, plans, and other applicants have their own signer rules.

Review who can sign Form 8802 if the authorized signer is unclear.

Form 8802 itself may generally be signed digitally. More detail is available in can Form 8802 be signed electronically.

Daytime Phone Number

Providing a daytime phone number can help the IRS resolve questions about the application without sending a letter. The IRS states that providing a daytime phone number can speed processing when it has questions about items on Form 8802.

Lines 11 and 12: Number of Forms 6166 Requested

Line 11 identifies the number of Forms 6166 requested for each country. If certifications are requested for more than one year for the same country, the number entered for that country includes the certificates requested across those years.

If certifications are requested for multiple years, the IRS instructs applicants to attach a statement identifying the country, year, and number of certifications requested for each year. The total must agree with the number reported for that country on line 11.

Line 12 reports the total number of Forms 6166 requested on the application.

Form 8802 Example: Current-Year Request

The following example illustrates the basic structure of a straightforward current-year application. It is not intended to supply the correct entries for every taxpayer.

Assume a U.S. citizen individual files calendar-year Form 1040 returns, needs one Form 6166 for Germany for calendar year 20X2, and prepares the Form 8802 in December 20X1. The individual's 20X0 Form 1040 was timely filed and no extension affects which return was required to have been filed.

  • Applicant name and TIN: the individual's legal name and SSN
  • Line 2: the individual's address for the certification year
  • Line 3a: left blank if Form 6166 should be mailed to the line 2 address
  • Line 3b: left blank if no third-party appointee is being authorized
  • Line 4a: individual
  • Line 5: completed based on the individual's U.S. return-filing history
  • Line 6: not completed when the line 5 instructions do not require it
  • Line 7: 20X2
  • Line 8: 20X012, because the 20X0 calendar-year return is the latest return required to have been filed in this example
  • Line 9: income tax treaty, with Germany identified as the country for which certification is requested
  • Line 10: the applicable current-year penalties-of-perjury statement for an individual
  • Signature: signed and dated by the individual
  • Line 11: one Form 6166 requested for Germany
  • Line 12: one total certification requested

A corporation, partnership, S corporation, trust, disregarded entity, exempt organization, or other applicant would complete several of these lines differently. The example should therefore be used to understand the relationship between the fields rather than copied into another taxpayer's application.

Common Form 8802 Mistakes

Common errors include:

  • Confusing the certification year on line 7 with the tax period on line 8
  • Using an incorrect taxpayer classification on line 4
  • Omitting required information for an applicant that did not file a return
  • Leaving out a required current-year penalties-of-perjury statement
  • Using an unauthorized signer
  • Omitting the Pay.gov confirmation number after electronic payment
  • Requesting the wrong number of certificates for a country
  • Leaving out required supporting documentation

What Happens After Form 8802 Is Completed?

Completing the form is only part of the filing process. The required user fee must be paid, and the completed Form 8802 and any required attachments must actually be submitted to the IRS.

Uploading Form 8802 to Pay.gov during electronic payment is used for payment validation and does not by itself submit the application to the U.S. Residency Certification function.

Before filing, confirm where to send Form 8802.

Summary

Filling out Form 8802 correctly requires matching the certification year, tax period, applicant classification, purpose, supporting documentation, and signature to the applicant's actual circumstances.

Lines 7 and 8 deserve particular attention because a current-year certification request can use a prior tax return period as its basis. Applicants should also confirm any required line 10 statements and attachments before submitting the form.

Taxpayers ready to begin may prepare Form 8802 online using a guided application process.