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Local guides | Income Tax Ottawa

Choose a topic, review the supporting records and follow the source links.

Income Tax Ottawa resources

A 2025 tax checklist for Ottawa federal employees and retirees

Identify current slips, changed employment records and the information needed beyond payroll.

Income Tax Ottawa resources

Follow the tax year and document sequence when a public service slip changes after filing.

Income Tax Ottawa resources

Check the instalment test, calculation method and payment references before the remaining 2026 dates.

Income Tax Ottawa resources

Organize the slips and residential facts behind a household’s federal and provincial returns.

Income Tax Ottawa resources

Build a property schedule that supports the tax review without treating every cash payment as a deduction.

Income Tax Ottawa resources

Identify the tax year and assessment status before trying to correct missing information.

Income Tax Ottawa resources

Use the actual reporting period, supported credits and correct program account for an HST filing.

Income Tax Ottawa resources

Separate the six-month filing deadline from the earlier corporate tax payment deadline.

Income Tax Ottawa resources

Compare the assessed figures, explanations and payment credits with the return you filed.

Income Tax Ottawa resources

Build a complete transaction history before relying on a crypto gain report.

Income Tax Ottawa resources

Separate income periods, currencies and family information before preparing a newcomer return.

Income Tax Ottawa resources

Organize dated income, asset values and authority before deciding which returns are required.