RESP and US Taxes, Explained

~8 min read·Updated September 2026

Tool:PFIC Risk Checker: see whether the funds inside the RESP add a separate filing.

An RESP is the account that catches people off guard hardest, because it's usually opened for a child rather than the account holder, often years before anyone in the family is a US person, and it comes with government grants that make it feel like the least "foreign" account imaginable. From the IRS's side, it can be one of the most complicated accounts on this entire site: a foreign trust question, a PFIC question, and a taxation question, stacked on top of each other.

Why a trust question exists at all

An RESP is a formal trust arrangement under Canadian law: a subscriber (usually a parent or grandparent) contributes, a promoter/trustee holds and invests the funds, and a named beneficiary eventually receives them for education. That structure is exactly what the US foreign-trust rules are built to catch. A US person who is the subscriber (and sometimes the beneficiary) can be required to file Form 3520 for contributions and distributions, and the trust itself (practically, the US person connected to it) can be on the hook for the annual Form 3520-A, one of the most disproportionately penalized information returns in the entire US international tax system.

⚠️These penalties don't scale down for a small account

Missed Form 3520/3520-A penalties are generally calculated as the greater of a fixed dollar amount or a percentage of the trust's value or the transactions involved, which means a modest RESP funded mostly by government grants can still generate a penalty far larger than the account itself. This is the single biggest reason RESP compliance gets specialist attention rather than a DIY approach.

What Rev. Proc. 2020-17 actually fixes

The IRS's Revenue Procedure 2020-17 was written specifically to give relief from this problem for "eligible individuals" holding certain tax-favored foreign retirement and non-retirement savings trusts, RESPs included, so long as conditions like limited annual contributions and the account already being reported to the relevant Canadian tax authority are met. Where it applies, it exempts the account from the Form 3520/3520-A filing requirement specifically. It's genuinely significant relief for the families it covers, but it's easy to over-read: it addresses the foreign-trust paperwork, not what's actually taxable inside the account. Whether you qualify depends on your exact facts, and confirming eligibility before relying on it is worth a specialist's time given what's at stake if the assumption is wrong.

The PFIC question survives the relief entirely

Rev. Proc. 2020-17 has nothing to say about PFICs. If the RESP's underlying investments are Canadian mutual funds or ETFs, each one is still potentially a PFIC requiring its own Form 8621, with the same punitive default "excess distribution" regime described in PFICs and Canadian ETFs, Explained. An RESP that's fully exempt from 3520/3520-A because of the revenue procedure can still generate a full set of PFIC filings if it holds the wrong funds. The two questions are independent, and clearing one doesn't clear the other.

The grants and growth are generally still taxable income

Separately from the trust and PFIC questions, the growth inside an RESP, and the government grant money itself (the CESG and, where applicable, the CLB), is commonly treated as taxable to the relevant US person as it's earned or received, since none of it fits an existing US tax-deferral category the way an RRSP does. Exactly how and when depends on the specific facts and is genuinely an area where treatment in practice varies; this is not a case where a general guide can safely give you a number to use.

ℹ️Contributions from a non-US-person grandparent can add a fourth filing

Large contributions from a foreign person (a Canada-resident grandparent, for instance) can separately trigger the gift-reporting side of Form 3520 for the US-person recipient once they cross the annual threshold, on top of anything above. It's worth tracking who contributes and how much, not just the account's own activity.

What people commonly do about it

Families who become US persons with an existing RESP typically get a specialist to confirm Rev. Proc. 2020-17 eligibility first, since that alone resolves the highest-penalty risk. From there, moving the RESP's holdings to cash, a GIC, or something that isn't a PFIC removes the Form 8621 layer, the same strategy used for a TFSA (see TFSA and US Taxes, Explained). Some families stop contributing to the RESP once they're US persons and rely on a US 529 plan instead for any US-resident children going forward, weighing the lost CESG matching grant against the ongoing complexity; there's no universal right answer, and it depends on how long the family expects to stay in the US.

Not tax, legal, or immigration advice: RESP treatment is fact-specific and the penalties for getting the foreign-trust filings wrong are severe; confirm your own situation with a cross-border tax specialist before assuming any relief applies. See the methodology page for the underlying PFIC and reporting citations, and FBAR and FATCA for Canadians in the US for how the account's balance separately factors into those thresholds.