New Brunswick sits at the heart of Atlantic Canada — a bilingual province with a traditional economy in forestry, fishing, and energy, and a growing tech and financial services sector in Moncton and Fredericton. For departing New Brunswick residents, the province's relatively high top marginal rate (combined ~53.3%) and the federal deemed disposition rules create significant departure tax exposure, particularly for those with substantial investment portfolios or private company interests. NB's bilingual administrative environment means both English and French tax resources are fully available.
New Brunswick-to-USA migration includes Irving-related industry workers, Université de Moncton graduates, military (CFB Gagetown), and cross-border workers near the Maine border. Key NB-US planning points:
Canada-USA DTA and NB pension: NB public service pensions paid to US residents are taxable in the USA under Article XVIII of the Canada-USA DTA — Canada withholds 15% on periodic pension payments; the USA taxes the full amount; FTC for the 15% Canadian withholding reduces the US liability. File Form 8833 if claiming treaty benefits.
Cross-border businesses (Maine border): NB has a long land border with Maine. Cross-border employers should allocate employment income between NB and US work days — the allocation determines the taxable income in each jurisdiction for the departure year. The Canada-USA DTA provides specific rules for employees who work in both countries.
RRSP deferral election: File on Form 8833 (Treaty-Based Return Position Disclosure) in your first US Form 1040. Without the election, the IRS taxes RRSP and RRIF inside growth annually.
TFSA and US PFIC: TFSA is exempt from Canadian deemed disposition but the IRS does not recognize the TFSA's tax-exempt status. US residents holding Canadian mutual funds or ETFs inside their TFSA may have PFIC (Passive Foreign Investment Company) annual reporting obligations.
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