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Ontario in March 2026, Key changes residents should know

Ontario in March 2026, Key changes residents should know

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March 2026 brings several practical changes that Ontario residents will actually feel. Some are federal measures that apply nationwide, and others relate to Ontario’s regulatory and marketplace updates. What matters most is timing, several deadlines in March affect eligibility for compensation, reduced fees, or tax outcomes.

 

Prohibited firearms compensation, deadline March 31, 2026

Canada’s Assault-Style Firearms Compensation Program is open to eligible individual owners nationwide. Eligible owners have until March 31, 2026 to submit a declaration online or by mail, and early submission is encouraged because processing is largely first come, first served, subject to available funds.

The notice also highlights the broader compliance timeline, including the October 30, 2026 amnesty end date.

 

Banking, NSF fee cap starts March 12, 2026

From March 12, 2026, new federal limits will cap NSF fees on personal accounts at $10, restrict charging more than one NSF fee within two business days on the same account, and prohibit NSF fees when the shortfall is under $10.

 

Taxes, March dates that can change your result

Two CRA dates stand out:

 

March 2, 2026 is the RRSP contribution deadline for the 2025 tax year.

 

SimpleFile opens March 9, 2026, with the digital option available to eligible individuals with or without an invitation.

 

Education, budgeting signals before the fall intake

 

Ontario has announced the end of the post-secondary tuition freeze, allowing public colleges and universities to raise tuition starting September 2026, up to 2% per year for three years under the new framework.

 

The same coverage notes OSAP grant levels are expected to shift, with grants capped at 25% of OSAP funding starting this fall.