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Rental Property Cash Flow Calculator

Analyze rent, financing, expenses, vacancy, NOI, cash flow, cap rate, cash-on-cash return, DSCR, and deal score.

Who it helps: Real estate investors, landlords, mortgage brokers, and Realtors

Decision: Is this rental property worth a deeper look?

Estimate details

Default scenario loaded. Adjust the assumptions below to match the property, client, or decision.

Preloaded scenarios

Tap a scenario to preload realistic assumptions, then tune the numbers for the specific property or client.

Purchase and financing

Core assumptions

Purchase price$Down payment$Closing costs / cash reserve$Interest rate%AmortizationyearsProvinceCity

Income and expensesAdjust details

Monthly rent$Other monthly income$Annual property tax$Annual insurance$Repairs/maintenance$Vacancy allowance%Property management%Utilities paid by owner$Condo fees$Legal/accounting$Capex reserve$

Projection and riskAdjust details

Use this section to test renewal pressure, target lender coverage, and multi-year operating assumptions.

Annual rent growth%Annual expense inflation%Renewal / shock rate%Target DSCRProjection length

1years5years10years

years

Estimate generated

Monthly cash flow

-$1,159.87

Renewal cash flow

-$1,452.75

Target DSCR rent

$5,311.54

Deal score: F

15/100

Decision brief

Monthly cash flow: -$1,159.87

Next action

Stress test rent, vacancy, and interest rate assumptions.

Key notes

Sources

What this means

Monthly cash flow is -$1,159.87. Use this as the anchor for your next conversation: Stress test rent, vacancy, and interest rate assumptions.

5-year operating projection

Year	Rent/month	NOI/year	Cash flow/year	Cumulative cash flow
$1	$3,300	$21,492	-$13,918	-$13,918
$2	$3,382	$22,120	-$13,291	-$27,209
$3	$3,467	$22,765	-$12,645	-$39,854
$4	$3,554	$23,429	-$11,982	-$51,836
$5	$3,643	$24,110	-$11,300	-$63,136

Underwriting targets

Metric	Current	Target / stress	Signal
Cash invested	$137,500	Down payment + closing costs	Capital at risk
Base DSCR	0.61	1.20	Below target
Rent for target DSCR	$3,300	$5,312	Needs higher rent or lower costs
Renewal payment	$2,951	$3,244	293 more per month
Renewal DSCR	0.55	1.20	Renewal risk

What could break this deal

Risk	Current signal	What to verify
Base cash flow is already negative before income tax.	Weak deal	Renegotiate price, financing, rent, reserves, or expense assumptions.
Renewal-rate pressure creates negative monthly cash flow.	Weak deal	Renegotiate price, financing, rent, reserves, or expense assumptions.
Base DSCR is below the entered 1.20 target.	Weak deal	Renegotiate price, financing, rent, reserves, or expense assumptions.
Vacancy cushion is thin; one longer turnover could erase the margin.	Weak deal	Renegotiate price, financing, rent, reserves, or expense assumptions.
Operating expense ratio is high relative to gross income.	Weak deal	Renegotiate price, financing, rent, reserves, or expense assumptions.
Cash-on-cash return is low for the cash invested.	Weak deal	Renegotiate price, financing, rent, reserves, or expense assumptions.

Operating expense breakdown

Expense	Monthly amount	Share of gross income
Property tax	$350	10.6%
Insurance	$150	4.5%
Repairs	$250	7.6%
Vacancy allowance	$165	5.0%
Management	$264	8.0%
Utilities, condo, admin, capex	$330	10.0%

Stress scenarios

Scenario	Rent/month	Vacancy	Cash flow/month	DSCR
Base case	$3,300	5.0%	-$1,160	0.61
Rent -5%, vacancy +5	$3,135	10.0%	-$1,460	0.51
Rate +1.00%	$3,300	5.0%	-$1,453	0.55
Combined downside	$3,135	10.0%	-$1,753	0.46

Deal score components

Component	Score	Signal
Cash flow	$4	Monthly surplus after debt service
Cap rate	$34	NOI yield before financing
Cash-on-cash	$0	Annual cash flow versus cash invested
DSCR	$0	Income coverage over debt service
Vacancy risk	$70	Penalty for vacancy assumption

Key assumptions

Mortgage payment uses the entered interest rate and amortization with Canadian semi-annual compounding.
NOI excludes mortgage payments and income tax.
Cash-on-cash return uses down payment plus entered closing costs as cash invested.
Renewal shock assumes the same remaining principal and amortization for a simple payment-pressure test.

Suggested next steps

Stress test rent, vacancy, and interest rate assumptions.
Check local rent controls and rental restrictions.
Export a deal scorecard before writing an offer.

Warnings

Rent controls, short-term rental rules, condo bylaws, insurance, tax treatment, and financing terms vary by jurisdiction.
Deal score is a planning model, not investment advice or a guarantee of performance.
This scenario is negative cash flow before income tax.
DSCR is tight; lender underwriting may require stronger income, lower debt service, or more equity.
Vacancy cushion is narrow; the deal may be sensitive to turnover or leasing delays.

Formula used

NOI = gross income - operating expenses.
Cash flow = NOI - mortgage payment.
Cap rate = annual NOI / purchase price.
Cash-on-cash return = annual cash flow / cash invested.
DSCR = annual NOI / annual debt service.
Target DSCR rent solves for the rent needed for NOI to cover debt service at the entered DSCR target.
Break-even vacancy estimates the vacancy level where NOI covers debt service.

No statutory source was required for this estimate. User-entered assumptions still need professional review.

RealEstateTools.ca provides educational estimates only. Results are not legal, financial, tax, mortgage, appraisal, accounting, or investment advice. Confirm all numbers with qualified professionals.

Quick answer

Rental Property Cash Flow Calculator helps real estate investors, landlords, mortgage brokers, and realtors decide: Is this rental property worth a deeper look? It provides a transparent educational estimate with assumptions, warnings, source citations where applicable, and next steps for professional review.

How this tool should be used

Use the output as a decision aid, not a final answer. Some tools produce calculations, while others create checklists, timelines, comparison tables, or review prompts that help you move the file forward.

Frequently asked questions

What is the Rental Property Cash Flow Calculator?

Rental Property Cash Flow Calculator is a Canadian real estate planning tool for real estate investors, landlords, mortgage brokers, and realtors. It helps answer: Is this rental property worth a deeper look?

Are the results guaranteed?

No. Results are educational estimates only and are not legal, tax, mortgage, appraisal, accounting, investment, or financial advice. Confirm all numbers with qualified professionals.

Does this tool use Canadian assumptions?

Yes. The platform is designed for Canada-first calculations, province-aware source metadata, Canadian terminology, and rule freshness tracking.

Can I export or save the result?

The free workflow includes email and PDF-style report calls to action. Saved report storage and account dashboards can be layered on later without changing the public calculators.

Rental Property Cash Flow Calculator

Estimate details

Purchase and financing

How this tool should be used

Frequently asked questions

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