AtlasCalcsUtility Calculation Suite
2026-09-21 7 min read

Rental Property Financing Calculator

The full debt picture — loan sizing, payment, DSCR, debt yield and LTV for a rental property. Live calculator with worked steps and charts.

Calculator

Purchase Price Help
$

The price you pay, before closing costs.

Number of Units(units)
units
Down Payment(%) Help
%

Investment loans typically require 20–30% down.

Interest Rate(%)
%
Loan Term(years)
years
Repair / Rehab Budget
$
Monthly Rent Help
$

Gross scheduled rent before vacancy.

Vacancy & Credit Loss(%) Help
%

Share of scheduled rent lost to turnover and non-payment.

Property Tax (Annual)
$
Insurance (Annual)
$
Maintenance & Repairs(%) Help
%

Share of effective income budgeted for repairs.

Property Management(%) Help
%

Share of collected rent charged by the manager.

Annual Appreciation(%)
%
Holding Period(years)
years
Selling Costs(%) Help
%

Commission plus closing costs, as a share of sale price.

Discount Rate / Target Return(%) Help
%

The annual return you require to tie up cash.

Advanced options (9)
Closing Costs
$
Other Monthly Income Help
$

Laundry, parking, storage, late fees, pet rent.

Utilities (Annual, Landlord-Paid)
$
Other Expenses (Annual)
$
Rent Growth(%)
%
Marginal Tax Rate(%)
%
Building Share of Price(%) Help
%

The non-depreciable land keeps the rest.

Depreciation Period(years)
First Payment Date

This rental property calculator runs on a full rental pro-forma: rent is annualised and reduced by vacancy, every operating expense is itemised to reach NOI, and the loan amortises monthly at the rate entered. Results update live as you type.

Amortization schedule

Balance Interest Payment
View:
YearInterestPrincipalEnding Balance
1$15,677.60$2,285.57$222,714.43
2$15,512.37$2,450.80$220,263.63
3$15,335.20$2,627.96$217,635.67
4$15,145.23$2,817.94$214,817.73
5$14,941.52$3,021.65$211,796.08
6$14,723.08$3,240.08$208,555.99
7$14,488.86$3,474.31$205,081.68
8$14,237.70$3,725.47$201,356.21
9$13,968.38$3,994.78$197,361.43
10$13,679.60$4,283.57$193,077.86
11$13,369.94$4,593.23$188,484.64
12$13,037.90$4,925.27$183,559.37
13$12,681.85$5,281.32$178,278.05
14$12,300.06$5,663.11$172,614.94
15$11,890.68$6,072.49$166,542.45
16$11,451.69$6,511.47$160,030.98
17$10,980.98$6,982.19$153,048.79
18$10,476.24$7,486.93$145,561.86
19$9,935.01$8,028.16$137,533.69
20$9,354.65$8,608.52$128,925.18
21$8,732.34$9,230.83$119,694.35
22$8,065.04$9,898.13$109,796.22
23$7,349.50$10,613.66$99,182.56
24$6,582.24$11,380.93$87,801.63
25$5,759.51$12,203.65$75,597.98
26$4,877.31$13,085.86$62,512.12
27$3,931.33$14,031.83$48,480.29
28$2,916.97$15,046.20$33,434.09
29$1,829.28$16,133.89$17,300.21
30$662.96$17,300.21$0.00

Results

Normal

Loan Amount

$225,000

Monthly Payment

$1,497

30-year amortisation at 7.00%.

Interest-Only Payment

$1,313

What the payment becomes during an interest-only phase.

Annual Debt Service

$17,963

Total Interest

$313,895

Down Payment

$75,000

Total Cash Required

$89,000

Down payment plus closing costs and repairs.

Loan-to-Value

75.00%

DSCR

1.19%

Coverage from the property’s own income.

Max Loan at a 1.25x DSCR

$114

The loan the property’s NOI supports at a 1.25x floor.

Live results update as you type — currently showing loan amount of $225,000. Replace the defaults with your own rent roll, tax bill and insurance quote for an exact comparison.

Visualizations

Amortising vs Interest-Only Payment

1,497Amortising
1,313Interest-only

Total Cost Split

Principal42%
Interest58%

Outstanding Balance by Year

Loan-to-Value

75%
0100

Formula

The financing model sizes the loan from the down payment, amortises it, and reports the full debt picture: payment, DSCR, debt yield and LTV together.

Loan = Price × (1 − Down payment %); Payment amortised at r over n

Variables

SymbolNameUnitDescription
DPDown payment%The equity you put in at close
LTVLoan-to-value%Loan as a share of price or value
DSCRCoveragexNOI over annual debt service

Explanation

Financing is the second half of every deal: the same building at different leverage and pricing produces different cash flow, coverage and returns. This page reports the whole stack on one sheet.

Step-by-Step Calculation

Follow each step to understand how the result is calculated from your inputs.

Step 1

Size the loan from the purchase price and the down payment.

Loan = price × (1 − down payment %)
Purchase price:$300,000
Down payment:25.00%
Intermediate: $300,000 × (1 − 0.25)
Result: $225,000 loan, $75,000 down
Step 2

Amortise the loan to find the monthly payment and annual debt service.

P = L × i ÷ (1 − (1 + i)^−n)
Loan:$225,000
Rate:7.00%
Term:30 years
Intermediate: i = 0.005833333333333334 per month, n = 360 payments
Result: $1,496.93/month ($17,963/year)
Step 3

Annualise the rent and deduct vacancy and credit loss.

EGI = (rent × 12 + other income) × (1 − vacancy %)
Monthly rent:$2,600.00
Vacancy:5.00%
Intermediate: $31,200 − $1,560
Result: $29,640 effective gross income
Step 4

Subtract every operating expense to reach net operating income.

NOI = EGI − taxes − insurance − maintenance − management − utilities − other
Effective income:$29,640
Operating expenses:$8,253
Intermediate: $29,640 − $8,253
Result: $21,387 NOI
Step 5

Compute financing from the figures above.

Payment = loan × i ÷ (1 − (1 + i)^−n); DSCR = NOI ÷ debt service
NOI:$21,387
Debt service:$17,963
Cash invested:$89,000
Intermediate: Payment = $1,496.93 a month
Result: $1,496.93 a month
Final Answer
$225,000

Worked Examples

See how the calculator works with different scenarios.

Scenario

The rental property financing calculator run on the values above, showing the full calculation path rather than only the answer.

Inputs

Price:300000
Rent Monthly:2600
Down Payment Pct:25
Rate:7

Calculation

1. Size the loan from the purchase price and the down payment. → $225,000 loan, $75,000 down 2. Amortise the loan to find the monthly payment and annual debt service. → $1,496.93/month ($17,963/year) 3. Annualise the rent and deduct vacancy and credit loss. → $29,640 effective gross income 4. Subtract every operating expense to reach net operating income. → $21,387 NOI 5. Compute financing from the figures above. → $1,496.93 a month

Result

Loan Amount: $225,000

Interpretation

$225,000 at 7.00% over 30 years is $1,496.93 a month; the NOI covers it 1.19x and the LTV is 75.00%.

Understanding Your Result

Your Result: Loan Amount: $225,000

Typical range: Investment financing typically means 25–30% down, a 1.25x DSCR floor and a 70–80% LTV cap; the binding constraint is whichever produces the smaller loan.

What This Means

Financing is the second half of every deal: the same building at different leverage and pricing produces different cash flow, coverage and returns. This page reports the whole stack on one sheet.

Why It Matters

$225,000 at 7.00% over 30 years is $1,496.93 a month; the NOI covers it 1.19x and the LTV is 75.00%.

Professional Interpretation

$225,000 at 7.00% over 30 years is $1,496.93 a month; the NOI covers it 1.19x and the LTV is 75.00%.

How this is calculated

The financing model sizes the loan from the down payment, amortises it, and reports the full debt picture: payment, DSCR, debt yield and LTV together.

What drives the result

The pro-forma method: annualise the rent, deduct vacancy to reach effective gross income, subtract operating expenses to reach net operating income, then subtract debt service to reach cash flow. Each layer answers a different question — value (cap rate), lender safety (DSCR) and investor return (cash-on-cash).

Recommendations

  • •The DSCR usually caps the loan before the LTV does — model income first, then ask what the lender will lend.
  • •An interest-only period lifts cash flow now and raises the total cost; use it for a lease-up, not for a stabilised deal.

Educational Content

Introduction

Rental analysis starts with one year of operations: scheduled rent, vacancy and credit loss, every operating expense, and the debt payment. NOI is what remains for the owner; everything else — cap rate, cash flow, DSCR, cash-on-cash — is NOI viewed from a different angle.

Concept Explanation

The pro-forma method: annualise the rent, deduct vacancy to reach effective gross income, subtract operating expenses to reach net operating income, then subtract debt service to reach cash flow. Each layer answers a different question — value (cap rate), lender safety (DSCR) and investor return (cash-on-cash).

Applications

▸Screening a listing against your price and return requirements in minutes
▸Comparing two or three candidate properties on the same pro-forma assumptions
▸Preparing a lender-ready one-year operating statement for a loan request
▸Setting rents and budgeting expenses for a property you already own

Benefits

  • •One consistent model across every property, so comparisons are fair
  • •Forces every expense to be named and budgeted rather than ignored
  • •Separates the property’s performance from the financing around it

Limitations

  • •A one-year pro-forma cannot capture capital expenditures that arrive in lumps — roofs, systems and exteriors need their own reserve
  • •Actual vacancy and expense ratios vary by market and management quality; a single assumption hides that spread
  • •The model assumes the rent roll is at market; in-place rents below market flatter the deal

Best Practices

  • •Build the pro-forma from your own quotes — insurance, taxes and management — not the seller’s summary
  • •Stress the deal: rent down 5%, vacancy up 5% — if it still pays, it will survive a soft year
  • •Fund a capital-expenditure reserve of about 5% of rent before calling any cash flow "positive"

Common Misconceptions

Myth: NOI is the profit the owner pockets.
Truth: NOI comes before the mortgage payment; only cash flow (NOI − debt service) reaches the owner’s bank account.
Myth: A property with positive cash flow is always a good deal.
Truth: Positive cash flow on an overpriced building can still be a worse investment than the same cash in an index fund — compare returns, not just sign.
Myth: Operating expenses are optional line items.
Truth: Vacancy, maintenance and management are real costs even when self-managed; underwriting them at zero inflates the price you can justify.

Practical Tips

  • •Pick the leverage that keeps DSCR above your lender’s minimum under a stress case, not just at today’s rent
  • •Compare total interest across terms — cheaper monthly is not always cheaper money

Common Mistakes

Maximising leverage because the payment "fits".
Coverage, not affordability, decides whether the deal survives a bad year.
Comparing loans on rate alone.
Fees, amortisation and prepayment terms change the real cost; use APR and total interest.

Assumptions

This calculator makes the following assumptions to provide estimates:

Fully amortising fixed-rate debt: No interest-only periods, balloons or resets are modelled here.

Limitations

Be aware of these limitations when using this calculator:

Limitation: A one-year pro-forma cannot capture capital expenditures that arrive in lumps — roofs, systems and exteriors need their own reserve
Limitation: Actual vacancy and expense ratios vary by market and management quality; a single assumption hides that spread
Limitation: The model assumes the rent roll is at market; in-place rents below market flatter the deal

Frequently Asked Questions

Answers to common questions about this calculator.

Should I put more down or keep leverage?
More down raises cash flow and DSCR but lowers cash-on-cash and total return when the property appreciates; the calculator’s ROI and DSCR pages let you test both.
Who uses the rental property financing calculator?
It is used by rental investors screening and pricing deals, by owner-operators budgeting expenses and rents, and by agents, lenders and advisers sanity-checking the numbers before money moves. It sits in the Rental Property group of the Real Estate Investing section of Atlascalcs.
How accurate is the rental property financing calculator?
Every figure follows from the inputs using standard property underwriting mathematics, so it is accurate to the quality of the values you enter. Lenders, appraisers and tax assessors each apply their own adjustments, so expect small differences against formal documents.
Do I need to sign up or pay to use this calculator?
No. Every Atlascalcs calculator is free, runs entirely in your browser and never asks for an account. Nothing you enter is uploaded or stored.
Can I use these numbers in a formal valuation or loan application?
The calculator is an underwriting aid, not an appraisal or a lender offer. Lenders and appraisers apply their own adjustments, so treat the output as a disciplined estimate to bring to those conversations.
How do I choose realistic inputs?
Pull rent from comparable leases, property tax from the current assessment, insurance from a quote, and management and maintenance from what operators in your market actually pay. Seller pro-formas are marketing documents.

Related Calculators

Explore more calculators related to this topic.

Related Guides

Deepen your understanding with these educational resources.

Glossary

Technical terms used in mortgage calculations explained in plain language.

Loan-to-Value (LTV)
Loan balance as a percentage of property value. Investment loans typically cap near 75–80%.
Debt Service Coverage Ratio (DSCR)
NOI divided by annual debt service. Lenders typically require 1.20–1.25x on income property.
Debt Yield
NOI divided by loan amount — a lender’s leverage-independent safety metric, usually 10%+.
Amortisation
The schedule by which level payments retire a loan — early payments are mostly interest, later ones mostly principal.

Authoritative References

Trusted sources and standards referenced by this calculator.

Applicable Standards

Level-payment amortisation, payments assumed in arrearsIncome and expenses annualised; percentages entered as annual ratesStraight-line depreciation per IRC §168 recovery periodsMoney rounded for display only; all calculations run at full precision

Was This Calculator Helpful?

Page Information

Last Updated:

2026-09-21

Version:

2.0.0

License:

Free to use for educational and professional purposes.