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Tax Instalment Schedule & Compliance Calendar

A clear, client-friendly view of when instalments are due — with calendar reminders included.

Where to start

Pick which tax type applies (corporate, personal, GST/PST/PD7A) and enter your prior-period balance. We’ll build your due-date schedule and an ICS file you can drop into your calendar.

Client

[Company Name]

Tax instalment schedule prepared for fiscal year-ended: (2025-12-31)
Business Number & CRA Program Accounts
Business Number (BN9):
123456789 9-digit root
Corporate Income Tax:
— RC0001
GST/HST:
— RT0001
Payroll (Source Deductions):
— RP0001
Quote the full program account (BN + RC/RT/RP + 4-digit reference) when remitting to CRA.
Annual Overview

Tax Compliance Calendar

Stay compliant and reduce surprises. Instalment rows update automatically based on the configuration below.

JanFebMarAprMayJun JulAugSepOctNovDec Notes
Configuration

Instalment Configuration

Choose a frequency for each tax type. Payments per year and calendar checkmarks update automatically.

Data Corporate Tax CRA ↗ GST/HST CRA ↗ PST BC Gov ↗ EHT BC Gov ↗ Personal Tax CRA ↗
Instalment frequency
Payments per year 4 4 12 4 4
Prior year balance
Status
Replaces the schedule below with rows derived from the values above.
Payment Schedule

Instalment Schedule

Edit any cell directly. The .ics download includes one reminder per non-zero amount.

Due Date Corporate Tax GST/HST PST EHT Personal Tax
Total 0.00 0.00 0.00 0.00 0.00
What if I don't pay?

Cost of missed instalments

Tax instalments are not legally required — you can choose not to make them. However, the CRA charges daily compound interest at the prescribed rate on any unpaid balance, starting from the original due date until the balance is paid in full. This interest is non-deductible. Use the calculator below to estimate the cost of skipping or delaying an instalment.

$
%
Days late —
Accrued interest $0.00
Total to pay $0.00
Equivalent simple rate —

Calculation uses daily compound interest: Interest = Principal × ((1 + r ÷ 365)days − 1). The CRA prescribed rate for overdue tax has historically ranged from 5% to 10%. Confirm the current rate at canada.ca before relying on the estimate.

For instalment payments related to the fiscal year shown above.

If you expect a significant change in your tax situation, please contact Steven Alexander CPA Inc. so that instalment payments may be revised.

Questions about your instalments?

Questions about your numbers?

This tool is a starting point, not a substitute for advice. If you'd like a hand applying it to your situation, book a quick chat or send us a note — whichever you prefer.

Book a 30-min chat Send us an email
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