Explore our collection of 150+ developer tools, PDF editors, and image converters. Everything runs locally in your browser.
Ubify Financial Advisory Board
FINANCIAL ANALYSTS & CPA REVIEWERS
About This Tool
The Rental Cash-on-Cash Return Analyzer provides real estate investors with an integrated loan amortization and operational cash flow engine to evaluate buy-and-hold residential acquisitions.
### Amortization & Cash Equity Modeling Unlike simplified calculators that require manual mortgage inputs, this analyzer models 30-year fixed loan financing directly from purchase price, down payment percentage, and mortgage interest rate: - Loan Principal: Computed as purchase price minus down payment amount. - Capital Invested: Aggregates down payment equity plus standard 3% estimated acquisition closing costs. - Debt Service (P&I): Computed using monthly loan amortization: $$M = P \left[\frac{r(1 + r)^n}{(1 + r)^n - 1}\right]$$ where $r = \text{annual rate} / 12$ and $n = 360$ months.
### Operating Reserves & Cash-on-Cash Formula - Maintenance & Management Reserve: Configurable percentage deduction (default 15%) applied directly against gross monthly rent to fund repairs, capital expenditures, and leasing fees. - Monthly Net Cash Flow: Gross monthly rental income minus (amortized P&I + monthly taxes & insurance + management/maintenance reserve). - Annual Cash-on-Cash Return: $$\text{CoC Return (\%)} = \left(\frac{\text{Monthly Cash Flow} \times 12}{\text{Total Cash Invested}}\right) \times 100$$
### Worked Numeric Example - Purchase Price: $320,000 | Down Payment: 20% ($64,000) - Closing Costs (3%): $9,600 | Total Cash Invested: $73,600 - Loan Amount: $256,000 at 6.80% APR (30-Year Fixed) - Monthly Debt Service (P&I): $1,669.74/mo - Gross Monthly Rent: $2,600/mo - Monthly Taxes & Insurance: $450/mo - Maintenance & Management (15%): $390/mo - Total Monthly Expenses: $1,669.74 + $450 + $390 = $2,509.74/mo - Net Monthly Cash Flow: $2,600 - $2,509.74 = $90.26/mo ($1,083/yr) - Cash-on-Cash Return: ($1,083.12 / $73,600) × 100 = 1.47%
### Secure Client-Side Calculation All loan calculations, reserve simulations, and cash-on-cash yield percentages process exclusively within your client web browser session with zero remote API requests.
How to Use
- 1
Set the property purchase price and down payment percentage (default 20%).
- 2
Enter the prevailing mortgage interest rate for 30-year fixed financing.
- 3
Specify expected monthly rental income and fixed monthly taxes and insurance costs.
- 4
Adjust the combined maintenance and management reserve percentage.
- 5
Inspect the primary monthly cash flow, annual cash-on-cash return, and breakdown summary.
Frequently Asked Questions
How does this analyzer estimate upfront capital invested?
Total cash invested combines your down payment percentage with an estimated 3% closing cost allowance covering lender origination, appraisal, title, and escrow prepaids.
What expense items should the maintenance and management reserve cover?
The reserve allocation accounts for recurring property management fees (typically 8-10%), routine maintenance, tenant turn costs, and capital expenditure reserves for long-lived components like roofs and HVAC units.
Is my financial property data saved on remote servers?
No. All calculations run strictly in-browser without server telemetry or database storage.