Effective Gross Income (EGI)
The annual income remaining after vacancy is applied to scheduled rental income, plus recurring other income.
Review methodologyCalculation authority
Oycora Methodology
Inspect the definitions, classifications, assumptions, and limitations behind Oycora's rental-property analysis. These pages explain the canonical financial engine; they do not replace it.
Methodology v1.0Effective 2026-08-23Last reviewed 2026-08-23
New to rental analysis?
Start with the core calculation flow
These topics connect income assumptions to operating performance, financing, returns, and projections.
Income
Income and expenses
Net Operating Income (NOI)
Property income remaining after operating expenses and before CapEx, financing, income taxes, and depreciation.
Review methodologyOperating Expenses
Recurring costs associated with operating the property that Oycora deducts when calculating NOI.
Review methodologyPercentage-Based Expense Bases
The income amount to which a percentage-based expense assumption is applied.
Review methodologyCapital Expenditures and Reserves
An assumption for major replacements or improvements kept separate from recurring operating expenses.
Review methodologyFinancing
Debt Service Coverage Ratio (DSCR)
Annual NOI divided by annual debt service.
Review methodologyLoan-to-Value Ratio (LTV)
Loan principal expressed as a percentage of the applicable property value.
Review methodologyMortgage Payment
The level principal-and-interest payment for an amortizing loan using the entered principal, interest rate, and term.
Review methodologyLoan Amortization
The modeled allocation of each loan payment between interest and principal and the resulting remaining balance.
Review methodologyCash Purchase Behavior
Oycora's treatment of an acquisition with no loan principal or debt service.
Review methodologyReturns
Pre-Tax Cash Flow
Cash remaining after NOI is reduced by CapEx reserves, debt service, and recurring financing costs.
Review methodologyCapitalization Rate (Cap Rate)
Annual NOI expressed as a percentage of purchase price.
Review methodologyCash-on-Cash Return
Annual pre-tax cash flow expressed as a percentage of initial cash invested.
Review methodologyGross Rent Multiplier (GRM)
Purchase price divided by scheduled annual gross rental income.
Review methodologyRisk and occupancy
Break-Even Occupancy
The rental occupancy needed for collected rental income and other income to cover fixed obligations and percentage-based expenses under Oycora's algebraic model.
Review methodologyVacancy and Collected Rent
A percentage reduction applied to scheduled rental income to estimate collected rental income.
Review methodologyEquity and projections
Projected Equity
Projected property value minus remaining loan balance at a selected year.
Review methodologyProjection Methodology
Oycora's year-by-year application of user-entered growth, financing, and holding-period assumptions.
Review methodologyProperty Appreciation
The compounded annual change applied to property value after Year 1.
Review methodologyRent and Expense Growth
The annual compounded changes applied to eligible income and expense assumptions after Year 1.
Review methodologyLoan Maturity in Projections
The point after which a modeled amortizing loan has no remaining balance or scheduled debt service.
Review methodologyProjected Total Return
The sum of cumulative pre-tax cash flow, principal paydown, and modeled appreciation over the holding period.
Review methodologyMethodology versioning and corrections
Material calculation or classification changes receive an explicit methodology version and effective date. If you believe a formula, classification, or explanation is incorrect, use Oycora's public corrections process.
View methodology changelog Review corrections policy