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ITINs for Investments, Retirement Income, Inheritance, and Trusts

Writer: Hayden McCoy, CFE, EA, CTC, CFP®
Hayden McCoy, CFE, EA, CTC, CFP®
Aug 28
12 min read

You may need an ITIN if you're a foreign person receiving certain U.S. investment income, retirement income, inheritance, or trust distributions and you're not eligible for a Social Security Number. But receiving money from the United States does not automatically mean you need an ITIN.


The first question is:

What type of income or payment are you receiving, and what U.S. tax reporting is required?


That answer determines whether you need an ITIN, whether U.S. tax should be withheld, whether a tax treaty may help, and whether you need to file a U.S. tax return.


Why Does the Type of Income Matter?


U.S. tax rules treat different types of income differently. Dividends may be subject to withholding. Certain interest may be exempt from U.S. tax entirely. Capital gains may not be taxable to some nonresident aliens. Pension and retirement distributions have their own withholding rules. An inheritance may not be taxable income at all. A trust distribution may include taxable income, tax-free principal, or a combination of both.

So the question isn't simply "I received money from the United States, do I need an ITIN?" We need to know what the money represents.


Do I Need an ITIN to Receive U.S. Investment Income?


Sometimes. A foreign individual may receive income from U.S. investments like dividends, interest, capital gains, mutual-fund distributions, or other brokerage-account income — whether you need an ITIN depends on the type of investment, the tax treatment, and whether you have a U.S. filing or reporting requirement.

U.S.-source dividends paid to a nonresident alien are generally subject to 30% U.S. withholding, unless a tax treaty provides a lower rate.


To actually receive that reduced rate rather than the default 30%, the IRS generally requires a taxpayer ID to be in place, and in practice, financial institutions frequently won't apply a reduced treaty rate on Form W-8BEN until an ITIN has actually been issued — not just applied for. That means for many foreign investors, the practical sequence runs in this order: apply for and receive the ITIN first, then submit Form W-8BEN with that number so future withholding happens correctly at the reduced rate from that point forward.


Owning an investment and needing an ITIN are not always the same thing.

Pavel, a client from Poland, was investing in the U.S. stock market and received a Form 1042-S showing 30% had been withheld from his dividends. He was actually eligible for a reduced 15% treaty rate — meaning half of what was withheld was excess. We filed Form 1040-NR to claim that refund, which also established his ITIN. But we didn't stop there: once Pavel actually had his ITIN in hand, he submitted Form W-8BEN directly to his financial institution, so future dividends would be withheld at the correct 15% rate automatically. That one form meant he no longer needs to file a U.S. tax return going forward purely because of this investment — the withholding at the source is already correct.


Interest works differently. Certain U.S. bank-deposit interest paid to a nonresident alien is generally not taxable at all, and certain qualifying portfolio interest may also be exempt. Other U.S.-source interest can be subject to withholding. Don't assume all U.S. interest is taxed the same way — what type of account produced it, and whether an exemption or treaty applies, both matter.


Capital gains follow yet another rule: for many nonresident aliens, gains from selling U.S. stocks or securities are generally not subject to U.S. tax at all if you were present in the U.S. for fewer than 183 days during the year and the gains aren't effectively connected with a U.S. trade or business — though there are important exceptions. That means the dividends and capital gains from the exact same brokerage account can receive completely different tax treatment. (We cover investing in the U.S. stock market in much more detail in a separate article.)


What tax form might I receive for investment income? Foreign investors may receive Form 1042-S for certain U.S.-source payments, showing the type of income, gross amount paid, withholding rate, and tax withheld. Keep it — if you later need to file a return or claim a refund, this is the document that supports it.


Do I Need an ITIN to Receive a U.S. Pension or Retirement Distribution?


You may. Foreign individuals can receive payments from U.S. retirement arrangements — employer pensions, 401(k) plans, IRAs, annuities, and other deferred-compensation plans. Payments to nonresident aliens are generally subject to U.S. withholding unless a treaty exemption or reduced rate applies. The exact treatment depends on the type of plan, your country of residence, whether a treaty applies, and whether the payment is periodic or a lump sum.


Many U.S. income-tax treaties contain special provisions dealing specifically with pensions — depending on the treaty, the income might be taxable only in the U.S., only in your country of residence, by both with relief available, or subject to a special rate. There's no single rule that applies to every country, so the specific treaty has to be reviewed.


Jana, a client from the Czech Republic, inherited a retirement account from a relative who had immigrated to the United States. The retirement account custodian provided a letter stating exactly why she needed an ITIN, we used that documentation to apply, and the ITIN was issued. Once she had it, Jana was able to receive her distributions at a reduced withholding rate instead of the default rate — the ITIN wasn't just a formality, it was what let the correct treaty-based withholding actually apply.


Does Receiving an Inheritance Automatically Mean I Owe U.S. Income Tax?


No. An inheritance itself is generally not income merely because you received inherited property or money. But inheritance situations can still create real U.S. tax and identification issues — the tax treatment depends on what you inherited, whether the estate is U.S. or foreign, whether the asset produces income, and whether tax needs to be withheld.


So there are really two separate questions: is receiving the inheritance itself taxable? And does the inherited asset later produce taxable U.S. income or create a filing requirement? Those aren't the same question, and the answer to one doesn't answer the other.


This can happen when a U.S. financial institution, estate, trustee, or withholding agent needs a taxpayer ID to properly report a payment. But simply being named in a will doesn't automatically create an ITIN reason on its own — the application still has to fit within the IRS's rules, and third-party documentation can be genuinely difficult to obtain.


Petr and Stanislav, two brothers from the Czech Republic, received part of an inheritance from a relative who had immigrated to the U.S. and become a citizen. They applied under the inheritance exception, and the law firm serving as the estate's executor provided a letter clearly explaining why each brother needed an ITIN. Both applications were granted without complication — a good example of how smoothly this process can go when the institution involved actually understands what documentation the IRS requires. Not every case goes this cleanly, which is exactly why getting the letter right the first time matters.


Does the Estate Itself Need an EIN?


This is a piece many people don't think about until they're already administering an estate: before any distributions can go out to beneficiaries — foreign or otherwise — the estate itself often needs its own EIN, obtained by the executor. This is separate from any ITIN a foreign beneficiary might need. The estate is generally treated as its own taxpayer while it's being administered, similar to how a business identifies itself with an EIN. See "Do I Need an ITIN, an EIN, or Both?" for the general distinction between these two numbers.


I've helped a number of executors through exactly this — obtaining the estate's EIN so accounts can be opened and distributions can actually be made, which is often the step that has to happen before a foreign beneficiary's ITIN question even becomes relevant.


What If I Inherit U.S. Real Estate?


Then the situation may eventually touch several areas of U.S. tax law at once — your tax basis in the property, any rental income if it's rented out, state tax requirements, and FIRPTA if you later sell it as a foreign person. Inheriting U.S. real estate can create future U.S. tax obligations even when simply receiving the inheritance didn't create taxable income to you at the time.


What If I Am a Beneficiary of a Trust?


Trust distributions are genuinely complicated, and the tax treatment depends heavily on whether the trust is U.S. or foreign, whether it's a grantor or non-grantor trust, what type of distribution you received, and what income the trust earned during the year. A payment simply described as "trust distribution — $100,000" doesn't tell us enough on its own — that amount could represent current-year income, accumulated income, principal, capital gain, or some combination, each with different tax treatment.


Don't assume every dollar distributed by a trust is taxable income, but don't assume it's all tax-free either. If you're a foreign beneficiary of a U.S. trust, keep the distribution statements, any Forms 1042-S, and any letter from the trustee explaining what the distribution represents — and if the trust is foreign and you later become a U.S. tax resident, separate and extensive foreign-trust reporting rules can become very important. Given how much this depends on the specific trust and distribution, this is genuinely a situation to review individually rather than rely on general rules of thumb.


Like an estate, a trust is often treated as its own separate taxpayer, and the trustee generally needs to obtain the trust's own EIN before it can open accounts and make distributions — the same underlying issue covered above for estates, just with a trustee instead of an executor. Don't assume this step has already happened simply because the trust has existed for years; it's worth confirming directly with the trustee.

Given how much a trust's terms, structure, and jurisdiction affect the tax result, this is genuinely an area where I recommend consulting an experienced estate attorney directly, in addition to a tax professional — trust documents raise legal questions about the trust itself that go beyond what a tax preparer alone should be interpreting.


Your U.S. Tax Residency Can Completely Change the Answer


This is one of the biggest issues with investment and trust income. The rules for a nonresident alien — generally taxed on certain U.S.-source income — can be very different from the rules for a U.S. tax resident, who's generally taxed on worldwide income. Someone who moves to the U.S., obtains a green card, or meets the substantial presence test may have a very different result than someone who remains a nonresident alien. Certain foreign mutual funds, pooled investments, trusts, and retirement arrangements can also create U.S. reporting requirements that didn't exist while you were a nonresident alien.


If you know you'll soon become a U.S. tax resident, it's worth reviewing your foreign investments before the residency change occurs — the tax consequences can be much harder to fix afterward.


Does an ITIN Let Me Open a U.S. Brokerage Account?


An ITIN can sometimes help with a financial institution's tax-identification requirements, but whether a brokerage will actually open an account for you is a separate question — brokerages have their own requirements around residency, immigration status, and compliance policies. An ITIN doesn't force a brokerage to accept you as a customer. (We cover this separately in "Can I Invest in the U.S. Stock Market With an ITIN?")


Does an ITIN Make My Investments Tax-Free?


No. An ITIN is only a taxpayer identification number — it doesn't exempt income from U.S. tax, give you a treaty benefit automatically, change your residency, or eliminate withholding. It allows the IRS and financial institutions to identify you for tax purposes when a U.S. taxpayer ID is required. The tax treatment itself comes from the underlying tax law and any applicable treaty.


What Is Form W-8BEN, and How Is It Different From an ITIN?


Form W-8BEN is one of the most common forms foreign individuals encounter with investments — you generally provide it to a withholding agent (a brokerage, financial institution, or other U.S. payer), not to the IRS directly, to establish your foreign status and claim a treaty-reduced withholding rate when applicable.


This distinction matters: the ITIN identifies the taxpayer. Form W-8BEN tells the payer about the taxpayer's foreign status and possible treaty claim. Depending on the payment, you may need W-8BEN with no ITIN at all, an ITIN and W-8BEN together, an ITIN and a full tax return, or some other combination entirely — which is exactly why we start with the type of income rather than simply asking whether you already have an ITIN.


Keep Every Tax Document


For investment, retirement, inheritance, and trust matters, keep:

  • Forms 1042-S

  • Forms W-8BEN you submitted

  • Brokerage and pension statements

  • Retirement-plan distribution documents

  • Estate and trust documents

  • Inheritance letters

  • Financial-institution correspondence showing tax withheld

  • Purchase and sale records for investments

  • Prior U.S. tax returns

  • Treaty documentation and IRS correspondence

International tax matters can involve documents from several different institutions at once — don't assume the bank, trustee, estate, or brokerage will be able to recreate everything years later.


Working With Someone Who Actually Handles This


This is exactly the kind of situation where the preparer's actual experience matters. Sourcing rules, treaty analysis, and knowing which form goes where (an ITIN application, a W-8BEN, or both) aren't things every preparer regularly handles — a mistake here can mean 30% withheld when you were entitled to 15%, or filing a return every year that a properly submitted W-8BEN would have made unnecessary. See "Why Hire a Credentialed Tax Preparer?" for what to look for before you hire someone.


When Should I Contact ITIN Abroad?


Ideally, before the payment or distribution occurs when possible. That gives time to determine whether you actually need an ITIN, whether withholding applies, whether a treaty may reduce the tax, and what should be provided to the payer before the money changes hands. Once payment has already been made and tax has been withheld, your options are more limited until a tax return is filed.


How ITIN Abroad Can Help


ITIN Abroad works with foreign individuals receiving U.S.-connected income and assets. Depending on your situation, we can help you:

  • Determine whether you currently need an ITIN

  • Prepare your ITIN application and complete the required CAA certification

  • Review U.S. investment-income tax treatment and applicable treaties

  • Assist in completing Form W-8BEN

  • Review pension and retirement distributions

  • Help identify the documentation needed for an inheritance-related ITIN

  • Assist executors with obtaining an estate's EIN

  • Prepare Form 1040-NR and claim credit for tax withheld

  • Request refunds when too much tax was withheld

  • Help you understand future U.S. filing requirements


The goal isn't simply to obtain an ITIN. It's to understand: what did you receive, how does the United States tax it, how much should be withheld, and what do you need to file?


FAQ


Do I need an ITIN just because I own U.S. stocks?

Not necessarily. Foreign investors can sometimes own U.S. securities without an ITIN. An ITIN may become necessary when you have a U.S. tax-return requirement, need to claim a refund, or have another current federal tax reason.


Are dividends from U.S. companies taxable to foreign investors?

U.S.-source dividends paid to nonresident aliens are generally subject to 30% withholding unless a tax treaty provides a lower rate.


Are capital gains from U.S. stocks taxable to nonresident aliens?

Often not, provided the investor remains a nonresident alien, is present in the U.S. fewer than 183 days during the year, and no exception applies.


Is U.S. bank interest taxable to a nonresident alien?

Certain qualifying U.S. bank-deposit interest is generally not taxable to a nonresident alien. Other interest can have different rules.


Do I need an ITIN to receive a U.S. pension?

You may — it depends on the retirement plan, withholding, treaty treatment, and whether you need to file a U.S. tax return.


Is an inheritance from the United States taxable income?

Receiving an inheritance is not automatically taxable income to the beneficiary. However, inherited assets may later produce taxable income or create U.S. reporting requirements.


Do I need an ITIN to receive an inheritance?

Sometimes. A financial institution, estate, or withholding agent may require a U.S. taxpayer ID for tax reporting. The application must still meet a valid IRS ITIN reason.


Does the estate itself need its own tax ID?

Often, yes. An estate generally needs its own EIN, obtained by the executor, before it can open accounts or make distributions — separate from any ITIN a foreign beneficiary might need.


Does a trust need its own EIN too?

Often, yes — the same basic issue as with an estate, just handled by a trustee instead of an executor. Don't assume this has already been taken care of simply because the trust has existed for a while.


Can a trust distribution be taxable?

Yes. A trust distribution may contain income, principal, or other amounts with different tax treatment. The trust documents and tax reporting need to be reviewed individually, and given how much the legal structure affects the outcome, consulting an attorney alongside a tax professional is generally recommended.


What is Form W-8BEN, and is it the same as an ITIN?

No. The ITIN is a taxpayer identification number. Form W-8BEN provides information about your foreign status and possible treaty benefits to the payer — you may need one, the other, or both depending on the situation.


What if too much U.S. tax was withheld?

You may need to file Form 1040-NR, claim the withholding as a tax payment, and request a refund.


Can ITIN Abroad help before I receive the money?

Yes. Reviewing the transaction before payment can help determine whether you need an ITIN, whether a treaty applies, how much tax should be withheld, and which documents are required.

Receiving money or assets from the United States does not automatically mean you need an ITIN.


First determine what you're receiving — a dividend, interest, a capital gain, a pension, an inheritance, or a trust distribution. Then determine whether it's taxable in the U.S., whether tax should be withheld, whether a treaty applies, and whether you need to file a return.


Start with the type of income. The ITIN requirement follows the tax requirement.

Work with a team that does this every day.

Start your ITIN Request and we’ll guide you through the right documents, timing, and filing path, so you can feel confident from start to finish.

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