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Rental Property Calculator

Analyze cash flow, ROI, cap rate and returns on any investment property

Property Details

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Rental Income

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Monthly Expenses

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Pro Tip: The 1% rule: monthly rent should be at least 1% of purchase price ($3,000/month on a $300K property). This ensures positive cash flow in most markets.

Investment Analysis

Monthly Cash Flow

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After all expenses

Cash-on-Cash Return

0%

Annual return on cash invested

Cap Rate

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Net operating income / price

Total ROI (Year 1)

0%

Cash flow + equity + appreciation

Monthly Income

Gross Rent$0
Vacancy Loss-$0
Effective Rental Income$0

Monthly Expenses

Mortgage (P&I)$0
Property Tax$0
Insurance$0
Property Management$0
Maintenance$0
HOA / Other$0
Total Expenses$0

Investment Summary

Total Cash Invested$0
Annual Cash Flow$0
Annual Principal Paydown$0
Est. Annual Appreciation (3%)$0
Total Year-1 Return$0

5-Year Projection

Property Value (Year 5)$0
Remaining Loan Balance$0
Equity at Year 5$0
Total Cash Flow (5 yrs)$0
Total Return (5 yrs)$0
How to Use

How to Use This Calculator

Analyze any rental property investment in 4 steps

1

Enter Purchase Details

Input the property price, down payment (typically 25% for investment), interest rate, and upfront costs like closing and repairs.

2

Set Rental Income

Enter expected monthly rent and vacancy rate. Research comparable rents on Zillow, Rentometer, or local listings.

3

Add All Expenses

Include property tax, insurance, management fees, maintenance, and HOA. Don't underestimate โ€” surprises always happen.

4

Review Metrics

Check cash flow, cap rate, cash-on-cash return, and total ROI. Compare to the benchmarks in the info section below.

What Is a Rental Property Calculator?

A rental property calculator helps investors analyze the financial performance of a potential investment property. It considers all income, expenses, and financing to determine whether a property will generate positive cash flow and provide a good return on investment.

This calculator goes beyond simple cash flow to show you cap rate, cash-on-cash return, total ROI including equity buildup and appreciation, and a 5-year projection so you can make data-driven investment decisions.

Key Investment Metrics

  • Cash Flow: Monthly rental income minus all expenses including mortgage. Positive cash flow means the property pays for itself and puts money in your pocket.
  • Cap Rate: Net Operating Income / Purchase Price. Measures the property's return independent of financing. 5-10% is typical for residential rentals.
  • Cash-on-Cash Return: Annual cash flow / Total cash invested. Measures return on the actual money you put in. 8-12% is considered good.
  • Total ROI: Combines cash flow + principal paydown + appreciation. Often 15-25% in year one because of leverage.
Investment Fundamentals

Rental Property Investing

Key concepts for evaluating investment properties

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Cash Flow Is King

Positive cash flow means the property covers all expenses and still pays you. Even $200/month = $2,400/year passive income. Negative cash flow means you're paying out of pocket every month.

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The 1% Rule

Quick screening: Monthly rent should be at least 1% of purchase price. $300K property should rent for $3,000+. Below 0.7% is usually a poor cash-flow investment.

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The 50% Rule

Roughly 50% of gross rent goes to expenses (not counting mortgage). If rent is $2,200, expect ~$1,100 in expenses. Helps quickly estimate cash flow before deep analysis.

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Leverage Power

Put 25% down, control 100% of the asset. If property appreciates 4%, your $75K down payment earned $12K (16% return). Leverage multiplies returns โ€” and losses.

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Budget for Repairs

Set aside 1-2% of property value annually for maintenance. On a $300K property = $3,000-6,000/year. Major items (roof, HVAC, plumbing) can cost $5K-20K each.

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Location Drives Returns

Good school districts, low crime, job growth, and population growth drive both appreciation and rental demand. A great property in a bad area is a bad investment.

Common Questions

Rental Property FAQ

Cap rate benchmarks vary by market and property type:

Cap Rate = Net Operating Income / Purchase Price

  • NOI = Gross rent - Vacancy - Operating expenses (excluding mortgage)
  • Cap rate is financing-independent โ€” it measures the property's intrinsic return

Typical ranges:

  • 3-5%: Premium markets (SF, NYC, LA) โ€” low cash flow, high appreciation
  • 5-7%: Strong markets โ€” balanced cash flow and appreciation
  • 7-10%: Midwest/smaller markets โ€” strong cash flow, less appreciation
  • 10%+: Higher risk areas or value-add properties

What to target:

  • Cash flow focused: 7%+ cap rate
  • Balanced approach: 5-7% cap rate
  • Appreciation focused: 3-5% cap rate (accept lower cash flow)
  • Below 4%: Usually only makes sense if expecting strong appreciation

More than a primary residence โ€” typically 25-30% of purchase price all-in:

On a $300K rental property:

  • Down payment (25%): $75,000
  • Closing costs (3%): $9,000
  • Inspection/appraisal: $1,000
  • Initial repairs: $5,000-15,000
  • Cash reserves (6 months PITI): $12,000
  • Total needed: $102,000-$112,000

Down payment requirements:

  • Conventional investment: 25% minimum (some allow 20%)
  • FHA house-hack (live in one unit): 3.5% on 2-4 unit
  • VA house-hack: 0% down on 2-4 unit
  • DSCR loans: 20-25% down, based on property income not your income
  • Hard money (for flips): 10-20% + higher interest

Ways to reduce cash needed:

  • House hack (live in one unit of a multi-family)
  • Seller financing (negotiate terms directly)
  • HELOC from primary residence for down payment
  • Partner with another investor (split costs and returns)

These overlooked costs turn profitable deals into money losers:

1. Vacancy (5-10% of gross rent)

  • Even in hot markets, expect 2-4 weeks vacant per year
  • Between tenants: cleaning, repairs, showing, screening
  • $2,200 rent x 5% = $110/month set aside

2. Capital expenditures (CapEx)

  • Roof replacement: $10K-25K every 20-25 years
  • HVAC: $5K-12K every 15-20 years
  • Water heater: $1,500-3,000 every 10 years
  • Budget $100-200/month for CapEx reserves

3. Property management (8-12% of rent)

  • Even if self-managing now, value your time
  • Placement fee: 50-100% of first month's rent
  • What happens when you have 5 properties?

4. Turnover costs

  • Painting: $1,500-3,000
  • Cleaning: $200-500
  • Minor repairs: $500-2,000
  • Lost rent during turnover: $2,200+ per occurrence

5. Legal and admin

  • Eviction costs: $1,500-5,000 (attorney + lost rent)
  • Accounting/tax prep: $300-800/year
  • LLC formation: $100-500
  • Landlord insurance premium (higher than homeowners)

It depends on your time, skill, proximity, and number of properties:

Self-manage if:

  • You have 1-3 properties
  • Properties are within 30 minutes of you
  • You're handy and can handle minor repairs
  • You're comfortable screening tenants and enforcing leases
  • You value the savings (8-12% of rent)

Hire a manager if:

  • You have 4+ properties
  • Properties are far from where you live
  • You value your time at more than $30-50/hour
  • You don't want midnight phone calls about plumbing
  • You're scaling and need systems

Cost of property management:

  • Monthly fee: 8-12% of collected rent
  • Placement fee: 50-100% of one month's rent
  • Lease renewal: $100-300
  • Maintenance markup: 10-20% on repair invoices

On a $2,200/month rental:

  • 10% management: $220/month = $2,640/year
  • Placement fee: $2,200 per new tenant
  • Your time saved: ~10-15 hours/month
  • Effective hourly rate of self-managing: $15-22/hour

Cash-on-cash measures the return on the actual dollars you invested:

Formula:

  • Cash-on-Cash = Annual Cash Flow / Total Cash Invested
  • Annual Cash Flow = (Monthly Cash Flow) x 12
  • Total Cash Invested = Down payment + Closing costs + Repairs

Example on $300K property:

  • Down payment (25%): $75,000
  • Closing costs: $9,000
  • Repairs: $5,000
  • Total cash invested: $89,000
  • Monthly cash flow: $250
  • Annual cash flow: $3,000
  • Cash-on-cash return: $3,000 / $89,000 = 3.4%

What's a good cash-on-cash return?

  • Below 4%: Weak (stock market averages 10%)
  • 4-8%: Acceptable if expecting good appreciation
  • 8-12%: Good โ€” solid cash flow investment
  • 12%+: Excellent โ€” but verify the numbers carefully

Why cash-on-cash can be misleading:

  • Doesn't include equity buildup (tenant paying your mortgage)
  • Doesn't include appreciation (property value increase)
  • Doesn't include tax benefits (depreciation)
  • Total ROI is typically 2-3x cash-on-cash when you add these

Rental properties offer significant tax advantages:

1. Depreciation (biggest benefit):

  • IRS lets you deduct the building value over 27.5 years
  • $300K property, $240K building value: $240K / 27.5 = $8,727/year deduction
  • At 24% bracket: $2,094/year tax savings
  • You're deducting "wear and tear" even if the property is appreciating

2. Operating expense deductions:

  • Mortgage interest: Fully deductible
  • Property taxes: Fully deductible
  • Insurance: Fully deductible
  • Repairs and maintenance: Fully deductible
  • Property management: Fully deductible
  • Travel to property: Deductible

3. Pass-through deduction (Section 199A):

  • May deduct 20% of rental income from taxable income
  • Significant savings for landlords in higher brackets

4. 1031 Exchange:

  • Sell rental property, buy another, defer all capital gains taxes
  • Can chain 1031 exchanges indefinitely
  • At death, heirs get stepped-up basis (taxes eliminated)

Example total tax benefit:

  • Depreciation: $8,727
  • Mortgage interest: $16,000
  • Other expenses: $8,000
  • Total deductions: $32,727
  • At 24% bracket: $7,855 tax savings per year