Why Keeping Your U.S. Retirement Accounts as a Canadian Resident can be a Smart Estate Planning Move

For Canadians who have lived or worked in the United States, it’s common to return home with U.S.-based retirement accounts such as a 401(k). While it may be tempting to look into trying to consolidate these orphan accounts into their Canadian equivalents, there are compelling reasons to consider keeping them intact—especially when it comes to tax deferral, estate planning, and long-term growth.

Tax Deferral Benefits Under the Canada–U.S. Tax Treaty

The Canada–U.S. Tax Treaty provides favourable treatment for Canadian residents holding U.S. retirement accounts. Specifically:

• 401(k) and Traditional IRA accounts automatically retain their tax-deferred status in Canada until withdrawals are made.
• This means you won’t be taxed annually on investment growth, allowing your savings to compound over time.
• Withdrawals are taxed as ordinary income in Canada, but foreign tax credits can often offset any U.S. withholding tax.

No Deemed Disposition at Death

Unlike Canadian RRSPs or RRIFs, which are subject to a deemed disposition at death (i.e., taxed as if fully withdrawn), U.S. retirement accounts like 401(k)s are not. The deemed disposition and reacquisition rules under ITA section 128.1 do not apply. Instead:

• The beneficiary of the 401(k) is taxed on the distributions when they are received.
• This can provide greater flexibility and potential tax deferral for heirs, especially if they are also Canadian residents.

Estate Planning Advantages

Keeping U.S. retirement accounts can simplify estate planning:

• S. retirement accounts like 401(k)s allow for direct beneficiary designations, bypassing probate and enabling faster, more efficient wealth transfer.
  • In Quebec, unless your RRSP or RRIF is held in a segregated fund or annuity contract issued by an insurance company, you cannot designate a beneficiary directly on the account. Instead, the assets must pass through your estate and be governed by your Will.
  • While a Notarial Will can help avoid probate in Quebec, RRSPs and RRIFs that are not insurance-based products will still be subject to estate administration. This process can delay access to funds for your beneficiaries and may result in additional legal and tax complexities.
  • Canadian residents can avoid the deemed disposition that applies to RRSPs/RRIFs at death.
  • Beneficiaries can stretch withdrawals over time, potentially reducing their tax burden up to a maximum of 10 years or with no limited time for married spouses.

Practical Considerations

Before deciding to retain your U.S. accounts, consider the following:

• US Estate Planning: If you have a US retirement account, you should review your estate planning needs as you may need to have a US Power of Attorney and a US Will to accompany your Canadian estate planning documents.
• Account access: Some U.S. institutions may restrict services for non-residents. Work with a cross-border advisor to ensure continued access.

Conclusion

For many Canadians, retaining U.S. retirement accounts like 401(k)s can offer significant tax and estate planning advantages. With proper planning and treaty elections, these accounts can continue to grow tax-deferred—and provide flexibility for both retirement income and wealth transfer.

Before making any decisions, it’s important to consult with a cross-border financial advisor or tax professional such as MCA Cross Border Advisors to ensure your estate planning strategy aligns with both Canadian and U.S. tax laws.