Rental Property Analysis Checklist Before You Offer

A full rental property analysis takes time. Before you go that far, you need a repeatable way to decide: Is this deal worth a closer look? This checklist gives you exactly that—the items to verify when screening a rental property before making an offer, plus red flags that trip up first-time investors.

For a complete beginner-to-intermediate walkthrough (why each number matters, how to build income and expense estimates from scratch), use our full guide: How to Analyze a Rental Property Before You Buy. This page is the companion checklist—scannable, actionable, and built so you don't skip a step.

Quick Screen: Is It Worth Analyzing?

Before you spend time on income and expenses, run a rent-to-price check. If the deal fails this, you need a strong reason to continue.

• 1% rule (single-family): Monthly gross rent ÷ purchase price ≥ 1%. Below that, the margin is tight—proceed only if you have an appreciation or value-add thesis.
• 0.7% rule (2–4 units): Same idea, lower bar. Monthly gross rent ÷ purchase price ≥ 0.7%.

For more on when these rules still hold, see Is the 1% Rule Still Relevant?

Income Checklist

Your analysis is only as good as your income number. Verify each of these before you lock in "effective" income.

• Base rent from market comps (Zillow, Rentometer, local listings)—not the current lease if it's below market.
• Other recurring income: laundry, parking, storage, pet rent.
• Vacancy deducted from gross: 5–10% depending on market. No property is 100% occupied every month.
• Effective gross income = (Rent + other income) × (1 − vacancy %). This is the number you use for the rest of the analysis.

Expense Checklist

Missing one expense category is how "good" deals turn into money pits. Confirm you've included all six.

• Property taxes — Actual bill from county assessor, not Zillow.
• Landlord insurance — Quote for dwelling/landlord policy, not homeowner's.
• Vacancy reserve — Already in income; don't double-count, but do account for it.
• Repairs & maintenance — ~1% of property value per year as a starting point; more for older or deferred-maintenance properties.
• CapEx (capital expenditures) — Reserves for roof, HVAC, water heater, appliances. Budget $100–$200/month; don't skip this.
• Property management — Model 8–12% of rent even if you self-manage, so you know the deal works if you ever hand it off.

Sanity check: the 50% Rule says operating expenses (excluding mortgage) often run ~50% of gross rent. If you're at 25–30%, you're probably missing something.

Financing Checklist

Wrong rate or down payment = wrong cash flow and DSCR. Use numbers you can actually get.

• Down payment % — 20–25% typical for investment loans; 100% if all-cash.
• Interest rate — Today's investor rate from your lender or a rates source, not a historical average or guess.
• Loan term — Usually 30 years for buy-and-hold.
• Closing costs — 2–5% of purchase price (lender fees, title, etc.).
• Upfront repair/CapEx budget — Any cash you're putting in at closing. Total cash invested = down payment + closing costs + this.

Metrics Checklist: What to Run and What "Good" Looks Like

Once income, expenses, and financing are in place, run these four numbers. A calculator like Will It Flow does this in one step.

• Monthly cash flow — EGI − operating expenses − mortgage (P&I). Target: ≥ $200/month. Below $0 = the property costs you cash every month.
• Cap rate — Annual NOI ÷ purchase price (or total acquisition cost). Target: 5%+ for most residential; below 4% = appreciation play, not income.
• DSCR — Monthly NOI ÷ monthly P&I. Target: 1.25+. Below 1.0 = income doesn't cover the mortgage; many lenders require 1.25+ for investment loans.
• Cash-on-cash return — Annual cash flow ÷ total cash invested. Target: 8%+. Below 4% is weak for the risk.

Red Flags and Common Underwriting Mistakes

If any of these are true, pause and fix the analysis before making an offer.

• Using rent minus mortgage as cash flow (ignores taxes, insurance, vacancy, maintenance, CapEx, management).
• Trusting seller or listing numbers for expenses—build your own from independent data.
• Using a historical or "average" interest rate instead of the rate you can get today.
• Omitting CapEx or assuming maintenance is enough (roofs and HVAC are real costs).
• Assuming 0% vacancy or self-management forever without modeling management cost.
• Running the numbers after you're emotionally attached—run them before the showing if you can.

Optional but Valuable: Multi-Year Outlook and BRRRR

If your tool supports it: run a multi-year outlook to see equity build, rent growth, and total return over 5–10 years. For BRRRR or value-add, add After Repair Value (ARV) and check the refinance scenario. These aren't required for a basic screening checklist, but they round out the picture before you offer.

One-Page Summary: Your Checklist

In order, before you make an offer:

1. Quick screen: 1% rule (SF) or 0.7% rule (small multi).
2. Income: market rent + other income − vacancy = effective gross income.
3. Expenses: taxes, insurance, vacancy, maintenance, CapEx, management—all six.
4. Financing: down payment, today's rate, term, closing costs, upfront repairs.
5. Run the numbers: monthly cash flow, cap rate, DSCR, cash-on-cash.
6. Targets: cash flow ≥ $200/mo, cap rate 5%+, DSCR ≥ 1.25, CoC 8%+.
7. Red flags: no rent-minus-mortgage math, no seller expense trust, no old rates, no missing CapEx or vacancy.
8. Optional: multi-year outlook and ARV/refi if you're doing BRRRR.

Once you have this down, you can screen deal after deal without skipping a step. For the full "why" behind each item and how to build estimates from scratch, use the full analysis guide.

Run the Checklist in Seconds

Will It Flow is built for this workflow. Enter property details, income, expenses, and financing once—get instant monthly cash flow, Cap Rate, DSCR, and Cash-on-Cash Return. No spreadsheet required. Use it to run through this rental property analysis checklist in under a minute.

Open Will It Flow Calculator →