The most common mistake in a first BC Interior rental budget is a cash flow model that leaves out three or four major cost categories. Then they close on a property and reality arrives. Here is the honest version of the numbers for a typical Kamloops investment property.
Corrected 6 October 2026. The first version of this post used a 5.29% mortgage rate, which I can't source. The Bank of Canada's average for new uninsured 5-year fixed mortgages was 4.30% in May 2026, and the mortgage line, totals and the 35%-down example below are recalculated at that rate. The monthly shortfall is about $300 smaller than first published, and still large. I've also labelled the property-tax and management figures as my estimates rather than standard rates.
The Scenario
A $550,000 single-family home in Kamloops, rented as a whole unit. That's below the Association of Interior REALTORS® single-family benchmark of $671,600 for May 2026, so think of an older house. Purchase with 20% down ($110,000), financing the remaining $440,000 at 4.30% (the Bank of Canada's May 2026 average for new uninsured 5-year fixed mortgages), amortised over 25 years.
The Monthly Cost Stack
Mortgage (principal and interest): ~$2,387/month
At 4.30% on $440,000 over 25 years, your blended monthly payment is approximately $2,387. This covers both principal repayment (which is building equity) and interest (which is a real cost). In year one, the split averages roughly $840 principal and $1,546 interest per month.
Property tax: ~$300/month (estimate)
The City of Kamloops's 2026 municipal tax rate for residential property is 4.65 per $1,000 of assessed value, which is about $2,560 a year on a $550,000 assessment. School, regional district and other levies come on top, so budget $3,500 to $3,800 a year: roughly $300 a month. Check the actual tax notice for any property you're serious about.
Insurance: ~$150/month
Landlord insurance — which covers the dwelling, your liability as a landlord, and loss of rental income in some policies — costs more than standard homeowner's insurance. Budget $150 per month ($1,800 per year) for a single-family rental.
Property management: ~$220/month
If you self-manage, this line item is zero. If you hire a property manager — and for a first investment property, especially if you work a day job, this is worth serious consideration — they charge a percentage of collected rent. Budget 10% until you have real quotes: on $2,200 per month in rent, that's $220.
Vacancy allowance: ~$110/month
No property is rented 100% of the time. A realistic vacancy assumption for Kamloops is 4 to 5% of annual gross rent. On $2,200 per month, that is $1,056 to $1,320 per year — call it $110 per month as a reserve.
Maintenance reserve: ~$460/month
This is the number most spreadsheets omit entirely, and it is the one that creates the biggest surprises. The standard rule of thumb is 1% of property value per year for ongoing maintenance and capital replacements. On a $550,000 property, that is $5,500 per year, or roughly $460 per month.
That sounds high until you price a new hot water heater ($1,500), a furnace replacement ($4,000 to $6,000), a roof ($12,000 to $18,000), or a full appliance replacement cycle. These costs do not arrive every month, but they will arrive. The reserve exists so you are not taking money out of your personal account when they do.
The Total
| Cost | Monthly |
|---|---|
| Mortgage (P+I) | $2,387 |
| Property tax | $300 |
| Insurance | $150 |
| Property management | $220 |
| Vacancy allowance | $110 |
| Maintenance reserve | $460 |
| Total | $3,627 |
Rental income at $2,200 per month produces a monthly cash deficit of approximately -$1,427.
At the benchmark price instead ($671,600), the mortgage alone at 20% down would be about $2,914 a month, so the gap gets wider, not narrower.
What This Actually Means
This is not a reason to avoid buying a rental property. It is a reason to go in with clear eyes about what the investment thesis actually is.
In the Kamloops market, residential investment is primarily an appreciation and mortgage-paydown play, not a cash flow play. Your tenant is covering a portion of your mortgage while the property appreciates. The roughly $1,430 monthly shortfall is what you are contributing out of pocket — in exchange for equity building and long-term appreciation in a growing BC Interior market.
Whether that trade-off makes sense depends on your personal financial position, your timeline, and your view on Kamloops appreciation over the next decade.
How the Numbers Shift
A larger down payment improves the cash flow position significantly. At 35% down ($192,500), the mortgage drops to roughly $1,939 per month, turning the deficit from about -$1,427 to approximately -$979. Still negative, but meaningfully better.
A duplex or property with a legal suite changes the income side. Two units generating $3,200 in combined rent versus $2,200 in single-unit rent can flip the equation closer to neutral or slightly positive, depending on the purchase price.
Lower price points also improve the picture. At $400,000 you're mostly in condo territory in Kamloops: AIR's May 2026 benchmarks were $378,900 for a condo and $508,100 for a townhome. With 20% down that runs at a lower monthly deficit, though strata fees replace some of the maintenance reserve and the appreciation upside may be lower.
The Due Diligence Implication
Before closing on any investment property, model all six cost categories with realistic numbers. If a deal only works at 0% vacancy and $200 per year in maintenance, it does not work. The properties worth buying are the ones that survive a realistic stress test — not just the optimistic scenario.
One asymmetry to build in deliberately: none of these six cost lines is capped, and the rent that pays for them is. BC's 2027 rent increase cap explains what that does to a model that grows both at the same rate.
A simple spreadsheet is enough to track this. Start with these six categories before you look at anything else.
Sources: Bank of Canada — interest rates for new lending by chartered banks · AIR — Kamloops market, May 2026 (3 June 2026) · City of Kamloops — property taxes
Written by Jagatjeet, as part of a public BC Interior real estate learning journey. Published 16 June 2026. Corrected 6 October 2026. Updated 7 October 2026. Jagatjeet is working toward a BC real estate licence and is not a licensed realtor. Nothing here is financial, legal or tax advice.