Dual Tax Treaty US/Canada: What to Know About RRSP and TFSA Reporting

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Sep 2, 2025
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For individuals living and working or retiring across both the U.S. and Canada, their cross-border retirement accounts—particularly RRSPs (Registered Retirement Savings Plans) and TFSAs (Tax-Free Savings Accounts)—necessitate their attention. Within this context, the dual tax treaty US Canada presents assistance in preventing double taxation and offers specific guidance on how retirement savings are handled across borders.

In accordance with this treaty, RRSPs and TFSAs receive distinct tax treatments. It should be noted that each comes with unique IRS reporting obligations. For instance, RRSPs qualify for a Form 3520-A exemption under IRS Revenue Procedure 2014-55, provided the taxpayer elects treaty benefits on their U.S. tax return, while TFSA IRS reporting requirements remain in place due to their classification under U.S. tax law. Moreover, both types of accounts may generate FBAR for RRSP and TFSA if they fulfill the aggregate foreign account thresholds.

RRSP filing requirements US Canada have vital importance in terms of maintaining full compliance and protecting the retirement assets. No matter if you are temporarily working in one country or making a permanent move, embracing how the treaty impacts the cross-border retirement accounts tax position is fundamental.

IRS Filing Rules for RRSPs and TFSAs

In the context of cross-border retirement accounts tax obligations, it is true that the U.S. takes a different view of Canadian savings plans—particularly RRSPs and TFSAs. Their classification should be taken into consideration in parallel to IRS rules for proper reporting practices.

RRSP: Form 3520-A Exemption (In Most Cases)

In line with IRS Revenue Procedure 2014-55, U.S. taxpayers holding Registered Retirement Savings Plans (RRSPs) or Registered Retirement Income Funds (RRIFs) generally satisfy qualifications for a Form 3520-A exemption RRSP. In other words, Form 3520 and 3520-A are no longer necessary for specific individuals, provided the account continues to receive treaty treatment under the dual tax treaty US Canada.

However, RRSPs are not entirely exempt from disclosure. U.S. persons may still be required to file FBAR for RRSP and TFSA if the account value exceeds reporting thresholds. RRSPs must be reported on Form 8938 under FATCA if the applicable reporting thresholds are met.

TFSA: Subject to Foreign Trust Rules

Tax-Free Savings Accounts (TFSAs) do not receive treaty protection in accordance with the current U.S.-Canada tax agreement, unlike RRSPs. For U.S. tax purposes, a TFSA is generally classified as a foreign grantor trust. This establishes TFSA IRS reporting particularly more complicated.

  • Form 3520: May be required to report contributions or distributions.
  • Form 3520-A: Usually necessary to disclose trust income and administration.
  • FBAR and FATCA: Reporting is also generated if thresholds are satisfied.

What If You’re Moving?

No matter if individuals are relocating to the U.S. from Canada or returning north, their retirement savings—like RRSPs or 401(k)s—can generally simply stay where they are. Acknowledging how the dual tax treaty US Canada applies in such scenarios can provide aid in preventing premature liquidation as well as unnecessary tax exposure.

Keeping the RRSP After Moving to the U.S.

In the case of moving to the U.S., it is correct that individuals are not required to liquidate their RRSP. In line with the dual tax treaty US Canada, RRSPs can continue to grow on a tax-deferred basis. Yet, proper tax treatment varies in accordance with how you report the account:

  • Claim treaty benefits correctly on the U.S. tax return.
  • Disclose the account under FBAR for RRSP and TFSA and, if applicable, Form 8938.
  • Tax is generally deferred until distributions are made, at which point income should be reported to the IRS.

Maintaining the RRSP rather than cashing out allows for strategic planning. However, it is critical to satisfy the appropriate RRSP filing requirements US Canada in order to prevent taxation inboth countries.

Keeping a 401(k) When Moving to Canada

U.S.-based 401(k) plans might also remain intact when relocating to Canada. Withdrawing funds early may generate taxation liabilities in both countries. By keeping the plan in place:

  • You preserve U.S. tax deferral status.
  • Canada will usually tax withdrawals once they begin, but credits may be available under the treaty.
  • Reporting should be handled correctly in parallel to both systems to establish full compliance.

FBAR: Yes, It Applies to Canadian Accounts

Even though RRSPs and TFSAs are Canadian retirement vehicles, they are still considered foreign financial accounts under U.S. law. In other words, they fall under the rules for FBAR for RRSP and TFSA reporting.

If you are a U.S. person and the aggregate value of all foreign accounts—covering cross-border retirement accounts like RRSPs and TFSAs—exceeds $10,000 at any time during the calendar year, you should file FinCEN Form 114, also known as the FBAR.

Important considerations are listed as follows:

  • The highest account value should be reported during the year, not just the year-end balance.
  • This requirement applies regardless of whether the income is taxable in the U.S. under the dual tax treaty US Canada.
  • Both RRSPs and TFSAs must be included, even if you view them primarily as long-term savings.
  • It is important to review thresholds annually and keep account documentation current to establish full compliance.

It is correct that RRSP filing requirements US Canada may present treaty-based exemptions from other forms (like the Form 3520-A exemption RRSP). Yet, the FBAR remains a separate and ongoing disclosure obligation.

Using the Treaty the Right Way

The dual tax treaty US Canada is designed to prevent double taxation on income earned by individuals with ties to both countries. Within the context, it offers helpful provisions, and its application varies depending on the type of account.

RRSPs: Treaty-Based Tax Deferral

Registered Retirement Savings Plans (RRSPs) benefit directly from treaty provisions. Under Article XVIII of the treaty, U.S. persons can defer U.S. tax on income earned inside an RRSP until funds are withdrawn. In order to leverage the following actions should be taken:

  • Make sure that proper treaty elections are made on the U.S. tax return.
  • Satisfy RRSP filing requirements US Canada to stay fully compliant.
  • Maintain clear records of all contributions and earnings alongside withdrawals.

The Form 3520-A exemption RRSP, as clarified under IRS Revenue Procedure 2014-55, further reduces the reporting burden—but does not remove it entirely.

TFSAs: No Treaty Relief

Tax-Free Savings Accounts (TFSAs) do not receive the same treaty protection. While tax-free in Canada, income generated inside a TFSA is generally taxable in the U.S., and the account may be treated as a foreign trust.

  • This can result in TFSA IRS reporting obligations, covering Form 3520 and 3520-A filings.
  • TFSAs should also be included in FBAR for RRSP and TFSA disclosures if reporting thresholds apply.

Final Thought

It should be recognized that crossing borders between the U.S. and Canada does not signify leaving the retirement savings exposed. It is true that the dual tax treaty US Canada might work in your favor—particularly when applied correctly to accounts like RRSPs and TFSAs.

How the IRS treats cross-border retirement accounts should be fundamentally acknowledged. From the Form 3520-A exemption RRSP to TFSA IRS reporting and FBAR for RRSP and TFSA filings, small mistakes can result in major penalty payments. Therefore, protecting fully compliant status with RRSP filing requirements US Canada takes careful coordination as well as professional documentation.

At Watter CPA, we specialize in assisting individuals in managing their cross-border financial responsibilities. No matter if you are holding onto an RRSP after relocating or unsure how the TFSA fits into your U.S. tax picture, our team can present professional guidance—from filing obligations to treaty elections. Contact us today for financial clarity and full compliance

FAQs

Do you have to file Form 3520-A for RRSP or TFSA?

U.S. persons generally satisfy qualifications for the Form 3520-A exemption RRSP under Revenue Procedure 2014-55. TFSAs may necessitate filing due to TFSA IRS reporting rules.

Should I liquidate my RRSP when moving to the US?

Not usually. The dual tax treaty US Canada allows for tax deferral if the RRSP is maintained and reported properly.

Should I liquidate my 401(k) when moving to Canada?

No. Keeping the account may present assistance in deferring U.S. tax and align with Canadian reporting under cross-border retirement accounts tax rules.

Do you have to file FBAR for RRSP or TFSA?

Yes. FBAR for RRSP and TFSA applies if total foreign account value exceeds $10,000 at any time during the year.

Do you have to file FinCEN 114 for RRSP or TFSA?

Yes. FinCEN Form 114 should be filed if RRSPs and TFSAs push the foreign account total over the reporting threshold.