Free tool · value & refinancing

Refinance value: what your below-market rents are costing you

Yes — below-market rents lower how much you can refinance. An income property is valued from its income, capitalized at your cap rate. Because appraisers and lenders use your actual rents — not potential ones — below-market rents suppress both the building's value and the amount you can refinance. Bringing rents up to market lifts both. Enter your numbers below to see, in real time, the value created and the extra refinancing you unlock.

Real-time calculation No data sent TAL-compliant

The calculator

What is your rent gap worth?

Adjust your numbers, the cap rate and the loan-to-value: results recalculate instantly.

Your numbers

Number of units

Current average rent ($ / month)

Market average rent ($ / month)

Average tenant compensation (× the monthly gap · per unit)

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Renovation cost (total, if any)

Cap rate 5.0 % · ×20.0

Refinancing loan-to-value 75 %

What it unlocks

Annual income missed —

Gross value created (building value) —

Cost to get there

Tenant compensation (18× the gap)—

Renovations—

Total cost—

Net value created

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Additional refinancing

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Return (ROI)—

Cost payback—

Current value—

Optimized value—

The default compensation (18× the gap) is indicative — use the Cash for Keys offer calculator to refine it.

Your rents are already at market — no value to recover with this gap.

Simplified estimate by rent capitalization: it does not include operating expenses, the building's condition or actual financing terms. Appraisers and lenders use actual rents, not potential ones — which is exactly why closing the gap with the market raises both your value and your borrowing capacity. This is not an appraisal, nor legal or financial advice.

The method

How an income property's value is calculated

An income property is valued from its income, not from what the neighbour paid. The core formula: value ≈ net operating income ÷ cap rate (the capitalization rate, or cap rate). Practitioners also use the gross rent multiplier (GRM): value ≈ gross rent × GRM. Either way, it's your actual rents that go into the math — not the rents you could be charging.

That's why a rent gap maps straight to value. Each dollar of additional annual income gets capitalized: value created ≈ annual gap ÷ cap rate. At a 5% cap rate, the annual gap is multiplied by 20. That same lift in value expands your refinancing room: additional refinancing ≈ value created × loan-to-value. The bank lends a percentage (the LTV, often 75%) of the new value.

The net value created subtracts the cost to get there: the compensation negotiated with tenants (a voluntary agreement, TAL-compliant) and, where needed, renovations. That's exactly what the calculator above isolates: gross value created, total cost, then net value created and net refinancing. For the full strategy, see our rent optimization service.

Worked example

A triplex renting $400/unit below market

3 units, $400/unit below market$400 × 3
Total monthly gap$1,200 / mo
Annual income missed$14,400 / yr
Value created (÷ 5% cap rate)$288,000
Additional refinancing (× 75% LTV)$216,000
Cost — tenant compensation (≈ 18× the gap)− $21,600
Net value created$266,400

Same assumptions as the calculator's defaults. Net refinancing, once the compensation is funded, would be about $194,400. Figures are illustrative — operating expenses, building condition and financing terms will move the real number.

Turn the number into a result.

This calculator gives you the order of magnitude. For a figure grounded in your actual leases, your area and a concrete catch-up plan — in full compliance with Québec's rental board (the TAL) — request your free analysis. You only pay if it works.

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Rent optimization service — how we close the gap for you Cash for Keys offer calculator — refine the per-unit compensation Guide: optimize your rents before refinancing or selling — the full strategy

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Frequently asked

Rents, value and refinancing

Do below-market rents hurt my refinancing?

Yes. A lender refinances based on a property's actual income, not its potential. Below-market rents lower the economic value an appraiser assigns, and therefore the maximum a bank will lend. Bringing rents up to market raises both the building's value and your refinancing capacity.

How do low rents lower my building's value?

By lowering net income, they lower value. An income property's value comes from its actual rents, capitalized at the cap rate (value ≈ net income ÷ cap rate). Every $100/month of missing rent per unit removes about $1,200 of annual income — roughly $24,000 of value at a 5% cap rate. Below-market rents therefore lock capital inside the building.

What is the cap rate (capitalization rate)?

The cap rate is the return the market expects from a property. It's used as: value ≈ net operating income ÷ cap rate. A 5% cap rate means paying 20 times net income; a 4% cap rate means 25 times. The lower the cap rate, the more value each additional dollar of rent creates.

How is the value created by a rent increase calculated?

You capitalize the extra annual income at your market's cap rate: value created = annual income missed ÷ cap rate. At a 5% cap rate, each additional $1 of annual income adds about $20 of value. For example, $14,400 of recovered annual rent creates roughly $288,000 of value.

How much additional refinancing can I unlock?

The bank lends a percentage of the value — the loan-to-value (LTV). Additional refinancing = value created × LTV. On $288,000 of value created at 75% LTV, you unlock about $216,000 of extra refinancing capacity, without selling the building.

Can I legally raise rents to market without TAL problems?

Yes, as long as you use the proper channels. Increases happen through a notice of lease modification or, faster, a voluntary agreement with the tenant (Cash for Keys style) — always in compliance with Québec's rental board (the TAL). Opti Loyer structures these agreements so they hold, with no eviction or pressure. See our rent optimization service.

© 2026 Opti Loyer. Rental income optimization in Québec — voluntary agreements, compliant with Québec's rental board (the TAL). This tool provides an estimate for informational purposes only and does not constitute an appraisal, or legal or financial advice. Privacy policy · Terms of use