Moving to the U.S. from Canada: Key Tax and Accounting Considerations

Whether it’s for career opportunities, business expansion, or lifestyle reasons, more Canadians are considering a move to the U.S. The appeal is often framed around Canada’s comparatively higher tax rates and the lure of U.S. tax cuts. But before packing up, it’s worth asking: are taxes the only reason you want to move?

Some Canadians who relocate for tax savings alone find the trade-offs more costly than expected. Many return after only a few years when they realize the move didn’t deliver the advantages they expected. If tax minimization is your sole motivation, there may be other planning opportunities worth exploring before making such a significant change.

Let’s take a look at some of the considerations you should be making before pulling the trigger on a move down south.

A primer on tax residency in Canada and the U.S.

Canada imposes taxes based on residency, not citizenship. You may be considered a resident if:

• You spend 183 days or more in Canada during the year
• You maintain significant residential, social, or economic ties
• The Canada–U.S. Tax Treaty deems you resident through tie-breaker rules

The U.S. rules differ as it imposes taxes based on citizenship or permanent residency, in addition to tax residency. The Substantial Presence Test can trigger residency based on day counts, while obtaining a green card makes you a resident from the day it is granted. Unlike Canada, the U.S. also imposes estate and gift taxes, which may apply even before income tax residency begins, which is an important consideration for Canadians with significant wealth.

Managing the Canadian departure tax

When you cut Canadian residency ties, you’re generally treated as though you sold most of your assets at fair market value. This deemed disposition is known as the departure tax.

Not everything is caught. Key exclusions include:

• Canadian real estate
• Registered plans such as RRSPs and RRIFs
• Certain pension assets

For homeowners, the principal residence exemption may help shelter gains. Business owners often face greater complexity, particularly with private company shares, which can trigger valuation challenges and even double taxation.

Elections are available to defer departure tax until an actual sale occurs, though these usually require posting security such as a letter of credit. Advance planning is critical to avoid liquidity problems and to minimize exposure.

Other implications of becoming a non-resident

The decision to become a non-resident extends beyond tax. You may lose access to Canadian public healthcare, government benefits, and Old Age Security if you haven’t yet met the minimum vesting period.

Immigration rules also come into play. Canadian permanent residents must live in Canada for at least two out of every five years to retain their status. Ending Canadian tax residency doesn’t automatically forfeit PR, but it can make compliance with this requirement more difficult.

U.S. reporting and compliance for Canadians

Life in the U.S. brings new reporting layers. Canadian bank and investment accounts must be disclosed to the IRS under FBAR, and non-compliance carries steep penalties.

Beyond federal tax, each state has its own system. Some states apply their rules more aggressively than federal law, and there’s no coordination between them as there is with Canadian provinces. Canadians who continue to hold businesses, property, or investments across borders can quickly find themselves in a maze of obligations. This is an area where working with advisors who understand both federal and state rules is essential.

Preparing for the move

The best outcomes come from planning early. Before leaving, review your portfolio and consider whether it makes sense to trigger gains in Canada while exemptions are still available. Departure tax should be planned for in advance, and strategies for reducing or deferring it considered.

Once you’ve moved, there are practical steps to take within the first few months:

• Apply for a Social Security Number (or an ITIN if you’re not eligible)
• Register your business if you plan to operate one in the U.S.
• Open U.S. bank accounts and begin establishing a local credit history

These steps create a smoother financial transition and help avoid problems later.

Relocating to the U.S. is a major decision with tax, financial, and lifestyle implications that extend far beyond the initial move. Without a coordinated plan, you could face unexpected double taxation, compliance headaches, or the loss of important benefits.

Early planning with cross-border tax advisors is the best way to prevent costly mistakes and ensure your move is structured in the most tax-efficient way possible. If you’re considering a move, reach out to your DMCL advisor. They can help you understand your options and make an informed decision about what comes next.