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Investment Dictionary

Every real estate investing term, defined with the math behind it.

Amortization (Loan Paydown)

Every mortgage payment quietly buys back a piece of your property. That's equity you didn't have to write a check for.

financing Updated 2026-07-28

APOD (Annual Property Operating Data)

The one-page financial statement of a rental - income at the top, cash flow at the bottom, every deduction visible in between.

metrics Updated 2026-07-28

Cap Rate

Net operating income divided by price. The speed of the return, before financing.

metrics Updated 2026-07-28

Cash Flow Shortfall

When collected income doesn't cover expenses plus the mortgage, the difference comes out of your pocket. Size it before it sizes you.

cash flow Updated 2026-07-28

Cash-on-Cash Return

Annual cash flow divided by the cash you actually put in. The return on YOUR money.

metrics Updated 2026-07-28

Down Payment

The cash you put in up front. It sets your leverage, your payment, your cushion, and most of your risk profile.

financing Updated 2026-07-28

DSCR (Debt Service Coverage Ratio)

NOI divided by loan payments. It answers the lender's question - does the property pay its own mortgage, with room to spare?

financing Updated 2026-07-28

Effective Rental Income (Vacancy & Credit Loss)

What you'll realistically collect - the theoretical maximum minus empty units and unpaid rent.

income Updated 2026-07-28

Gross Potential Income

The theoretical ceiling - every unit occupied, every rent at market, every dollar collected. Real underwriting starts here and subtracts.

income Updated 2026-07-28

Gross Rent Multiplier

Price divided by gross annual rent. A quick filter, not a full analysis.

metrics Updated 2026-07-28

Initial Investment

All the cash it takes to start - down payment, closing costs, upfront repairs, reserves. The denominator your returns are judged by.

metrics Updated 2026-07-28

IRR (Internal Rate of Return)

The annualized return of the whole hold: cash flows, appreciation, and the sale, on a timeline.

metrics Updated 2026-07-28

LTV (Loan-to-Value Ratio)

Loan amount divided by property value. Lower means more equity and better terms; higher means more leverage and more risk.

financing Updated 2026-07-28

Net Cash Flow (Total Cash Flow)

The last line - what's actually left after every expense, operating and not. Positive pays you; negative bills you.

cash flow Updated 2026-07-28

Net Gain on Investment

Everything the deal ever paid you, minus everything you ever put in. The whole story in one number.

returns Updated 2026-07-28

NOI (Net Operating Income)

What the property earns after operating costs and before financing. The number underneath cap rate, DSCR, and value.

metrics Updated 2026-07-28

Non-Operating Expenses

Debt service, income taxes, depreciation, CapEx - real costs that stay out of NOI on purpose.

expenses Updated 2026-07-28

Operating Expense Ratio (OpEx Ratio)

The share of income that operations consume. Too high signals inefficiency; suspiciously low signals someone's underbudgeting.

expenses Updated 2026-07-28

Operating Expenses

The recurring costs of running the property. Small assumptions here move NOI more than almost anything else.

expenses Updated 2026-07-28

Positive Leverage

When the property earns more than the debt costs, borrowed money works for you. When it doesn't, it works against you.

financing Updated 2026-07-28

Rental Rate Affordability

Whether the rent you're projecting is one the market's tenants can actually sustain. Paper rent isn't collected rent.

rents Updated 2026-07-28

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