Should You Bundle Home + Auto Insurance? The Real Math

Every insurance carrier in Canada advertises some version of “bundle and save up to 25%.” The pitch is simple, the marketing is everywhere, and the math is genuinely usually in the customer’s favour. But not always — and the difference between “almost always saves money” and “sometimes costs you more” comes down to a few specifics most consumers don’t think about.

Here’s how bundle discounts actually work, when they save you real money, and when they don’t.

How bundle discounts actually work

When you place both your home (or condo, or tenant) and auto insurance with the same carrier, that carrier applies a multi-policy discount to one or both policies. In Ontario, typical bundle discounts look like:

• Auto policy: 10–20% off
• Home policy: 5–15% off
• Combined effective discount: roughly 8–18% on your total premium

The exact discount varies by carrier, your profile, and the specific products bundled. A few carriers (notably some direct writers) advertise higher numbers, but those are usually the maximum possible discount, not what you actually get.

When bundling does save money

For about 75% of Ontario households, bundling saves real money — typically $300–$1,200 per year. You’re most likely to come out ahead if:

• You have a clean driving record and a standard home (no high-value items, no prior claims, standard construction)
• Both policies are competitive with the same carrier (i.e., that carrier is in the top 5 for both products in your situation)
• You don’t have specialty needs (high-value art, antique car, home-based business with significant exposure, etc.)

When bundling doesn’t save money

Here’s the part the marketing leaves out. Bundling can cost you money if:

One carrier is great for one product but mediocre for the other

Carriers specialize. Some are pricing leaders for auto, others for home. If Carrier A is $1,400/year cheaper than Carrier B for your auto, and Carrier B is $300/year cheaper than Carrier A for your home, splitting policies might save you more than bundling — even after losing the bundle discount.

Your bundled home premium is being subsidized

Some carriers offer aggressive auto pricing only if you also bundle home. Their home product, looked at standalone, may be 30-40% above market. The total looks competitive only because the auto savings mask the home overpayment. Worth checking the standalone home rate.

You have a high-value or unusual home

Homes worth $2M+, properties with extensive collectibles or art, heritage homes with custom features, or homes with significant home-based business exposure are often better priced through specialty carriers (Chubb, AIG, etc.) that don’t write auto. In these cases, splitting is structurally necessary.

How to calculate your real savings

Here’s a simple, accurate test:

1. Get a fresh bundle quote from a broker covering 5+ carriers
2. Get fresh standalone quotes for auto and home from the same broker, allowing different carriers
3. Compare totals. Whichever is lower wins.

This is exactly what an independent broker does for you. Captive agents (one company) can only quote their own bundle, so they can’t give you the standalone-split comparison.

The 5-minute bundle audit

If you have a bundle today and want to sanity-check it without re-shopping the whole market:

• Look at your declarations page. What’s the explicit “multi-policy discount” line item? Is it less than 10%?
• Look at your home premium standalone (the policy total before any multi-policy discount). Compare to what your friends and neighbours pay for similar homes.
• Look at when you last shopped. If it’s been more than 2 years, you’re probably overpaying — bundle or not.

The bottom line

Bundling is the right answer for most Ontario households, most of the time. But the marketing oversells it as a universal win, and a non-trivial minority of clients save more by splitting. The only way to know for sure is to compare both scenarios with multiple carriers — which a broker can do in a couple of business days.

Want me to run both a bundled and split scenario for your situation? Just send me your current policies and I’ll come back with side-by-side numbers.