International Tax Accountant: Who Needs One and How to Check

You need an international tax accountant when your file has a foreign account, a foreign company or trust, foreign income, a move between countries, or a non-resident owner of a US company. Those facts bring in separate information returns, and several carry penalties of $10,000 or more even when no tax is due. Hire someone with a US credential you can verify, who can name your forms from a plain description of your facts.

Who actually needs an international tax accountant?

Generally, anyone whose US filing reaches past the Form 1040 into foreign reporting. US citizens and resident aliens are taxed on worldwide income, wherever they live. A foreign fact usually adds a form with its own penalty, and it’s easy to miss because nothing on the main return asks for much detail.

• Foreign accounts. An FBAR is required if the accounts together exceeded $10,000 at any time in the year, even if they earned nothing. Larger balances can also mean Form 8938. For an unmarried person in the US, that starts above $50,000 on the last day of the year or $75,000 at any time. Living abroad and meeting a presence abroad test, it’s $200,000 or $300,000. Joint filers have their own figures. If you don’t have to file an income tax return for the year, you don’t file Form 8938.
• A foreign corporation. Officers, directors and shareholders of certain foreign corporations report on Form 5471.
• A foreign partnership. Certain owners file Form 8865.
• Foreign trusts and large gifts. Form 3520 covers trust transactions and gifts above $100,000 from a nonresident alien.
• Foreign funds. Foreign mutual funds can raise the PFIC rules.
• Foreign income. Tax paid abroad is generally claimed as a credit on Form 1116, or you may qualify for the foreign earned income exclusion.
• A move. Giving up US status can mean an exit tax for a covered expatriate, whose property is treated as sold the day before expatriating.
• A non-resident owner of a US company. A US LLC wholly owned by a foreign person that has a reportable transaction in the year files a pro forma Form 1120 with Form 5472, even though it’s normally ignored for income tax. Money the owner puts in or takes out counts.

What does an international tax accountant do?

They work out which countries can tax you, then prepare the returns and information forms that follow. Most of the job is finding obligations nobody told you about and keeping the numbers consistent across forms. They also deal with the tax authority when a notice arrives, which is a separate right from preparing the return and depends on the credential they hold.

• The day-to-day work. Residence and treaty questions, foreign tax credits, foreign company reporting, and catch-up filings for missed years.
• Law changes. P.L. 119-21, for example, renamed GILTI as net CFC tested income, with changes that apply to tax years beginning after 2025, so owners of foreign corporations will generally see different terms and rules on returns for the 2026 tax year, which are filed in 2027.
• Open years. When a covered information return is missing, the IRS’s time to assess tax on the related return doesn’t run out until 3 years after the information is furnished. If you show reasonable cause, that extended period applies only to the related items. The FBAR isn’t on that statutory list, since it’s a Title 31 report.

Which credentials count before the IRS?

Three give full rights: CPA, enrolled agent and attorney. The IRS says all three may represent clients on any matter, including audits, collection and appeals. A PTIN alone lets someone prepare returns for pay and nothing more. Titles such as “international tax consultant” don’t appear in 31 CFR 10.3, so ask which credential sits behind the title.

Credential	Issued by	Rights before the IRS	Where to check
CPA (US)	State board of accountancy	Unlimited, by filing a written declaration	The state board
Enrolled agent	IRS	Unlimited, through enrollment	IRS status request
Attorney	State court or state bar	Unlimited, by filing a written declaration	The state bar
Annual Filing Season Program	IRS record of completion	Limited: only returns they prepared and signed, and never appeals or collection	IRS directory
PTIN only	IRS	None, apart from returns they prepared and filed by the end of 2015	Their signature and PTIN on the return
Canadian CPA, no US license	The Canadian body that issued it	No CPA rights, because 31 CFR 10.2 requires qualification in a US jurisdiction	The body that issued it

The IRS’s directory is a good first stop, but the IRS describes it as containing “certain tax professionals,” so a missing name doesn’t settle anything. Go to the licensing body. Anyone under suspension or disbarment can’t practice before the IRS, whatever the title.

Attorneys differ in one way that can matter. The privilege for communications with a CPA or enrolled agent applies only in noncriminal tax matters. If your facts raise a question of willfulness, read how that line works before you describe them to anyone in detail.

What should you ask, and what are the red flags?

Ask questions that make the person show their reasoning on your facts. Good answers are specific and name forms, years and the one or two facts that change the work. The main warning sign is a price or a plan that arrives before anyone asks about your accounts, companies, trusts or move dates. That’s our read, and the IRS adds a few warnings of its own.

• Which US credential do you hold, and in which state or agency can I check it?
• If I describe my accounts, companies and trusts, which forms do you think I owe?
• Will you represent me if the IRS writes, or does that cost extra?
• How would you handle the years I’ve already missed?
• Which forms are in the written scope, and what would change the price?

The IRS’s own warnings apply here too. It says to avoid preparers who base their fees on a percentage of the refund and to never sign a blank tax form, and a paid preparer is required by law to sign the return and include a PTIN. We’d also be wary of a credential you can’t find with the issuing body, and of a promise of a specific penalty outcome, since relief depends on the facts.

What can a missed international form cost?

Often more than the tax. Most of these penalties apply whether or not you owe anything, and they stack, because each form has its own rule. The figures below are statutory amounts or maximums. Reasonable cause can excuse some of them, and what the IRS actually assesses turns on your facts, so read them as exposure.

• FBAR, non-willful: up to $16,536 for penalties assessed on or after January 17, 2025, and the Supreme Court held the cap applies per report. Reasonable cause can remove it if the balance was properly reported.
• FBAR, willful: up to the greater of $165,353 or 50% of the balance. The report is due April 15, with an automatic extension to October 15.
• Form 8938: $10,000, plus $10,000 for each 30 days the failure continues past 90 days after an IRS notice, up to $50,000 more.
• Form 5471: $10,000 per annual accounting period, with the same continuation penalty.
• Form 8865: $10,000 for each failure for certain owners.
• Form 3520, trusts: the greater of $10,000 or 35% of the gross reportable amount. An owner’s failure on Form 3520-A is the greater of $10,000 or 5%.
• Form 3520, gifts: 5% of the gift per month, up to 25%, unless you show reasonable cause.
• Form 5472: $25,000 per tax year, plus $25,000 for each 30 days past 90 days after a notice. The IRS notes no maximum.

What changes when the file is Canada-US?

Two complete tax systems apply, so the work has to agree on both sides. We’re a full-service firm whose specialty is cross-border. Yarik Yarosh, who wrote this guide, is a licensed CPA in both the US and Canada. A Canadian resident who’s also a US person generally files in both places and uses the treaty and foreign tax credits to limit double tax. Most of the risk sits in the points where the two sets of rules disagree.

These are general rules, and each turns on your facts.

• Treaty. Article IV deals with residence, and Article XXIV with eliminating double tax.
• RRSPs. Eligible individuals are treated as having made the deferral election, so US income tax can generally wait until distributions. The plan’s exemption from foreign trust reporting doesn’t affect other reporting obligations, so check Form 8938 and the FBAR too.
• Canadian foreign property. A Canadian resident generally reports specified foreign property on the T1135 once its cost is over C$100,000. A late return costs the greater of C$100 or C$25 a day, up to 100 days, and knowing or grossly negligent failures cost more.
• Leaving Canada. You’re generally deemed to have disposed of your property when you stop being resident, with exceptions.
• Selling Canadian property as a non-resident. The section 116 process applies to taxable Canadian property.

If your file is only Canada-US, our cross-border accountant guide goes deeper on that hiring decision.

How much does an international tax accountant cost?

We won’t quote a market range here because we don’t have a primary source for one. The price depends on what’s in the file: the number of countries, returns and information forms, whether a foreign company or trust needs its own reporting, and how many missed years have to be caught up. Ask for a written scope that lists each form. A fixed price for your file comes from the Diagnostic.

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.