Look for utilities, payroll, management, taxes, insurance, repairs, replacement reserves, and market-specific expense loads.
Plain-English term
Expense ratio
Operating expenses as a percentage of property income.
Definition that survives review
Expense ratio compares operating expenses to income so you can see how much rent survives before debt service. In a real review, translate the term into the cash flow, priority, deadline, tax treatment, status test, or control right it changes.
Use it to sanity-check how much income survives operations before debt. If you cannot point to the exact document or calculation behind it, you have recognized the vocabulary but not yet understood the deal.
Why it matters
Expense ratio is where lazy underwriting gets caught. Insurance, taxes, payroll, repairs, and management do not care about the pitch deck. This is why the term is not finished until you know who calculated it, what period it covers, and what happens if the friendlier definition is wrong.
A useful glossary entry should show where the word appears, what input changes it, and which connected term changes the answer next: NOI, Cap rate, DSCR.
How to use it in diligence
Operating expenses / effective gross income = expense ratio
$520,000 of expenses on $1,200,000 of income is a 43.3% expense ratio.
Comparing ratios across assets without checking age, market, utilities, tax resets, and management structure.
Proof checklist
- The source period, calculation basis, and owner of the number are named.
- The term reconciles to the PPM, operating agreement, lender documents, tax schedule, underwriting model, or verification record.
- The downside version is visible before the optimistic version gets trusted.
Example, trap, question
$520,000 of expenses on $1,200,000 of income is a 43.3% expense ratio.
Comparing ratios across assets without checking age, market, utilities, tax resets, and management structure.
- which expenses were normalized, excluded, or magically expected to improve.
- What source document, schedule, or third-party evidence proves this term in this specific deal?
- Which connected term changes the answer next: NOI, Cap rate, DSCR?
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