Calculators

Work out the number yourself.

Three calculators, each built on the published instrument rather than a rule of thumb. Every one of them shows its working and cites the statute, regulation or table it comes from, so you can check the answer instead of trusting it.

Family law01

Child support calculator

How much child support does the paying parent owe each month?

Enter the paying parent's gross income and how many children there are, and it returns the monthly amount from the Federal Child Support Tables for Ontario, along with the income band and the arithmetic behind it. Add the other parent's income and it will also work out a shared-parenting set-off and split the add-on expenses in proportion to what each parent earns.

For example: Two children and an income of $90,000 gives $1,372 a month.
Built on: SOR/97-175, Schedule I (Ontario), in force October 1, 2025
What it will not tell you: How income gets determined in the first place, which decides more cases than the table does.

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Civil litigation02

Court interest calculator

What is the interest worth on money I am owed, or on a judgment?

Interest under sections 127 to 129 of the Courts of Justice Act, at the quarterly rates the Ministry of the Attorney General publishes. It handles both halves: the interest that accrues between the day you lost the money and the day of the order, and the interest a judgment earns while it goes unpaid. The rate is fixed by the quarter the claim was issued, not by today.

For example: $40,000 over 837 days at 5.3% comes to $4,861.48.
Built on: Courts of Justice Act ss. 127 to 129, on the published rate tables
What it will not tell you: Section 130, which lets a court disallow interest or change the rate or the period.

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Corporate law03

Corporate filing deadlines

What does my corporation owe the government this year, and when?

Give it a fiscal year end and it lays out the year as a timeline: the T2 return, the tax balance, instalments, GST/HST, the annual return, and the annual resolutions. Weekend and holiday shifts are applied, each date names the section it comes from, and the balance date that depends on the small business deduction is marked as conditional rather than quietly decided for you.

For example: A March 31 year end puts the T2 on September 30, the same date CRA publishes.
Built on: Income Tax Act, Excise Tax Act, Corporations Information Act, OBCA
What it will not tell you: Payroll source deductions and T4s, which run on a schedule of their own.

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A number is a starting point, not an answer. If what you actually need is to know whether the number holds up in your situation, book a consultation and we will tell you where it moves.

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