Instalment calculator
Personal tax instalment calculator
Instalments are required when tax owing at filing passes the threshold this year and in either of the two years before. Enter the three years to see whether you need them and what each option costs a quarter.
2026 figures
From your notice of assessment.
Your best estimate if that return is not filed yet.
2027 instalments
Due March 15, June 15, September 15 and December 15, 2027. Paying the reminder or the prior year amounts in full and on time means no instalment interest, even if the year turns out higher. The current year option costs least when income is falling, but interest applies if the estimate proves too low.
What this does not cover. For individuals only. Net tax owing means the tax on the return less tax already withheld at source; take the earlier years from your notices of assessment. The reminder option follows the CRA's usual calculation, and farmers and fishers pay once a year instead. This is an estimate for planning, not advice for your situation and not a filing.
Who has to pay tax instalments?
Someone whose net tax owing is more than $3,000, or $1,800 in Quebec, in the current year and was also more than that in either of the two previous years. Instalments are due on March 15, June 15, September 15 and December 15. Paying one of the CRA's options in full and on time means no instalment interest.
