Form W-8EXP: Who Completes It, Validity, Requester Rules

Form W-8EXP: Certificate of Foreign Government or Other Foreign Organization for United States Tax Withholding and Reporting

Form W-8EXP is the certificate a foreign government, international organization, foreign central bank or foreign tax-exempt organization gives to claim the specific exemptions the Code gives those bodies. It is the rarest of the series for an ordinary payer, but universities, grant-makers and financial institutions see it, and it has its own reliance rules.

Completed by Foreign governments, international organizations, foreign central banks of issue, foreign tax-exempt organizations, foreign private foundations, and governments of U.S. possessionsRequested by Withholding agents paying these bodies U.S.-source income that may be exempt under sections 115(2), 501(c), 892, 895 or 1443(b)Updated September 26, 2026

Form W-8EXP at a glance

October 2023current revision

Neverfiled with the IRS; the requester keeps it

Not alwaysU.S. TIN required

Indefinitevalidity, absent a change in circumstances

Exemptwithholding result with a valid form

Certificationform type, not an information return

Form W-8EXP, page 1, current IRS revision — Page 1 of Form W-8EXP (Rev. October 2023), from IRS.gov, with the instructions. This is a certification the payee gives to the payer; it is kept by the requester and never filed with the IRS. Substitute forms are permitted when they carry the same certifications.

In this guide

Who completes it and who asks for it
The lines that matter
What the requester relies on
Where these go wrong
Questions people ask

Who completes it and who asks for it

Form W-8EXP is completed by a foreign government or its integral part or controlled entity claiming the section 892 exemption for investment income; an international organization designated under the International Organizations Immunities Act claiming section 892; a foreign central bank of issue claiming section 895 or 892; a foreign tax-exempt organization claiming section 501(c) status (attaching an IRS determination letter or an opinion of U.S. counsel); a foreign private foundation subject to the 4% tax under section 4948; and the government of a U.S. possession claiming section 115(2). These bodies use W-8BEN-E instead when claiming a treaty rate or receiving income the exemption does not cover, and W-8ECI for effectively connected commercial income.

The withholding agent is whoever pays the income: a bank or broker holding a sovereign fund's account, a university paying a foreign foundation, a company paying a foreign government's royalty. The agent keeps the form and reports the payment on Form 1042-S with the applicable exemption code.

The lines that matter

Part	What goes there	Where it goes wrong
I, lines 1 to 4	Name, country, chapter 3 status (the six categories above) and chapter 4 status.	A commercial entity owned by a government claiming section 892 for commercial activity income, which the exemption does not cover.
I, lines 5 to 9	Permanent address, U.S. TIN if any, GIIN if the entity is an FFI, foreign TIN.	A foreign tax-exempt organization that is an FFI omitting the GIIN.
II. Qualification statement	The certification matching the status claimed: for a government, that the income is from investments and not commercial activities; for a tax-exempt organization, the determination letter or counsel's opinion and, for a private foundation, the 4% statement.	The wrong box for the body's status; no determination letter or opinion attached for a 501(c) claim.
III. Certification	Signed under penalties of perjury by an authorized official.	Unsigned or signed by the wrong office.

What the withholding agent relies on

A valid W-8EXP lets the agent exempt the covered income from chapter 3 withholding (or apply the 4% rate to a private foundation) and document the entity's chapter 4 status. Unlike the other W-8s, a W-8EXP from a foreign government, international organization, central bank or tax-exempt organization is generally valid indefinitely absent a change in circumstances, provided the supporting determination letter or opinion remains current; the three-year rule applies where the form supports a claim that depends on documentary evidence. The agent must still withhold on income the exemption does not reach, such as a government's income from commercial activities or a foreign charity's unrelated business income.

Where these go wrong

Grants to foreign charities. A U.S. foundation paying a foreign NGO usually needs a W-8BEN-E with the active-NFFE or nonprofit certification, not a W-8EXP, unless the NGO is claiming section 501(c) status with a determination letter or counsel's opinion.
Sovereign wealth funds. Section 892 covers investment income of the government or its controlled entity, not income from commercial activities; the form's Part II certification is the line the agent relies on.
Names. Government ministries and agencies file under long official names; the 1042-S recipient name should match the form exactly.

Questions people ask about Form W-8EXP

Our university pays a foreign university for research. W-8EXP?

Only if the foreign university is claiming section 501(c) status with a determination letter or U.S. counsel's opinion, or is an integral part of a foreign government claiming section 892. Otherwise it gives a W-8BEN-E, and services performed abroad are not subject to withholding anyway.

How long is it valid?

Generally indefinitely for governments, international organizations, central banks and tax-exempt organizations, unless circumstances change or the supporting letter lapses.

Does it cover treaty claims?

No. A treaty rate is claimed on W-8BEN-E.

The other certification forms

W-9 · W-9S · W-8BEN · W-8BEN-E · W-8ECI · W-8IMY · Comparison table

Sources: Form W-8EXP and instructions (Rev. October 2023); Instructions for the Requester of Forms W-8 (Rev. June 2022); Publication 515; IRC 115, 501(c), 892, 895, 1443(b).