As interest rates shift and tax audits rise, a familiar tax move is back in focus for Canadian families: prescribed rate loans used for income splitting.
The strategy lets a higher-income person lend funds to a lower-income spouse, common-law partner, or a family trust for minors. The lower-income person invests the money and reports the investment income. The higher-income lender reports only the interest received at the Canada Revenue Agency’s prescribed rate.
Advisers say the gains can be meaningful, but only when the rules are followed with care and records are airtight.
“Prescribed rate loans can be a powerful income-splitting tool but only if you follow the rules carefully.”
How the Strategy Works
The lender advances cash to a spouse, partner, or trust at the official prescribed rate set by the CRA each quarter. The borrower invests the funds in a non-registered account.
The borrower keeps the investment returns after paying the required interest to the lender. The goal is to earn more than the prescribed rate so the family, as a whole, pays less tax.
This planning relies on attribution rules, which usually send income back to the original owner. The loan, when set at the prescribed rate with proper interest payments, blocks that attribution.
Why Timing and Paperwork Matter
The interest rate on a loan is locked in when the agreement is signed. That means a loan set in a low-rate quarter can remain at that rate for years, even if rates rise later.
The flipside is also true. Loans created during high-rate periods are harder to make work. Some families refinance when rates fall, but that requires care to avoid tax traps.
Experts warn that tax authorities often ask for proof. That includes a written loan agreement, evidence of the funds moving, and yearly interest payments made on time.
Key Rules That Must Be Met
- Put a signed loan agreement in place at the start.
- Use at least the CRA prescribed rate in effect that quarter.
- Pay interest to the lender by January 30 each year for the prior year.
- Keep clear records of transfers, interest payments, and investment activity.
- Report interest received by the lender and investment income by the borrower.
Who Benefits and Who Should Be Cautious
This can help when there is a large gap in tax brackets between spouses or when a family trust invests for children.
It is less helpful if the borrower’s returns are likely to match or trail the loan rate. Conservative investments may not clear the hurdle after fees and taxes.
Families with unstable cash flow may struggle to make the annual interest payment on time. Missing the January 30 deadline can cause attribution to kick back in for that year.
Risks, Audits, and Common Pitfalls
CRA reviews often target late or missed interest payments. A payment made even one day late can undo the tax result for that year.
Another common error is informal lending without a signed agreement. A verbal understanding rarely holds up in an audit.
Tracking funds also matters. Mixing borrowed money with other accounts can blur the audit trail. A separate account helps show the source and use of funds.
What if Rates Change?
The prescribed rate is set quarterly and reflects short-term government rates. A rising rate makes the strategy harder.
When rates fall, new loans can be set at the lower level. Some families repay old loans and start fresh, but they should consider costs, timing, and market conditions.
Planning also depends on expected returns. Equities can offer higher long-run gains but bring volatility and sequence risk.
A Simple Illustration
Consider a $300,000 loan set at a 3 percent prescribed rate. The borrower owes $9,000 of interest each year to the lender.
If the investment earns 6 percent before tax and fees, there is a 3 percent spread, or $9,000 of income taxed in the borrower’s hands.
The lender reports $9,000 of interest income. The family benefits if the borrower’s tax rate is much lower than the lender’s.
What to Watch Next
The outlook hinges on interest-rate moves and audit activity. A lower prescribed rate could revive interest in new loans. Ongoing reviews will keep the focus on paperwork and payment dates.
Families considering this approach should model returns, confirm the rate at loan setup, and set reminders for the January 30 payment.
Used with discipline, prescribed rate loans can reduce taxes without aggressive steps. Used casually, they often fail when reviewed.
