Child Support Arrears Interest Calculator Ontario

Ontario law requires child support payments to accrue interest when they are not paid on time. This calculator helps you determine how much interest has accumulated on unpaid child support arrears in Ontario.

How Child Support Arrears Interest Works in Ontario

In Ontario, child support payments that are not made on time are subject to interest. The interest rate is set by the Ontario government and is applied to unpaid amounts from the date they become due until they are paid.

The current interest rate for child support arrears in Ontario is 5% per annum, compounded monthly. This means the interest is calculated monthly and added to the principal amount each month.

Key Points About Child Support Arrears Interest

Interest starts accruing from the date the payment was due
Interest is calculated monthly and added to the principal amount
The interest rate is fixed by the Ontario government
Interest continues to accrue until the arrears are paid in full

How to Calculate Child Support Arrears Interest

The calculation involves determining the number of months the payment was late, applying the monthly interest rate to the principal amount each month, and summing up the interest for all months.

Interest = P × (1 + r)^n - P Where: P = Principal amount (arrears) r = Monthly interest rate (annual rate ÷ 12) n = Number of months

Worked Example

Let's say you have $2,000 in unpaid child support arrears in Ontario that was due 18 months ago. Here's how the interest would be calculated:

Principal (P) = $2,000
Annual interest rate = 5%
Monthly interest rate (r) = 5% ÷ 12 = 0.4167%
Number of months (n) = 18

Using the formula:

Interest = 2000 × (1 + 0.004167)^18 - 2000 Interest = 2000 × 1.0783 - 2000 Interest = 2156.60 - 2000 Interest = $156.60

So, the total amount due would be $2,000 + $156.60 = $2,156.60.

Frequently Asked Questions

How is child support arrears interest calculated in Ontario?

In Ontario, child support arrears interest is calculated using a fixed annual rate of 5%, compounded monthly. The formula used is: Interest = P × (1 + r)^n - P, where P is the principal amount, r is the monthly interest rate, and n is the number of months.

When does the interest on child support arrears start accruing?

The interest starts accruing from the date the payment was due, not from the date it was paid. This means the longer a payment is delayed, the more interest will accrue.

Can I negotiate the interest rate on child support arrears?

No, the interest rate for child support arrears in Ontario is fixed by law and cannot be negotiated. The current rate is 5% per annum, compounded monthly.

What happens if I don't pay the child support arrears with interest?

If you don't pay the child support arrears with interest, the amount will continue to grow over time. The Ontario government may also take legal action to recover the unpaid amounts, which could result in wage garnishment or other enforcement measures.

How can I pay off child support arrears with interest?

You can pay off child support arrears with interest through regular child support payments, one-time lump sum payments, or by setting up a payment plan with the Ontario government. It's important to pay the full amount to avoid further interest accrual.