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Tax filing deadlines across 3 North American countries

Tax filing deadlines for 3 North American countries. Every figure links to its official source, with the date it took effect and the date we last checked it.

Every figure names the official instrument it came from, the date it takes effect and the date we last checked it against that source. Where no single figure applies, we say so rather than publish one.

CountryTax filing deadlinesIn force fromLast verifiedSource
Canada9 deadline rules—2026-10-139 rules, each cited to its own official source; series-level citation…
Dominican Republic2 deadline rules—2026-10-132 rules, each cited to its own official source; series-level citation…
United States4 deadline rules—2026-10-134 rules, each cited to its own official source; series-level citation…

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