Rental Property Calculator
A rental property calculator analyzes investment property cash flow, cap rate, cash-on-cash return, and multi-year ROI. Enter purchase price, financing, rent, and expenses to see monthly cash flow, NOI, DSCR, and a {hold years}-year projection including appreciation and equity buildup.
Rental Property Math: Key Metrics Explained
Professional real estate investors use four core metrics to evaluate any rental property. This calculator computes all four simultaneously so you can assess a deal from every angle.
Benchmark Targets by Metric
| Metric | Poor | Acceptable | Strong |
|---|---|---|---|
| Cap Rate | <3% | 3–5% | >6% |
| Cash-on-Cash | <0% | 4–7% | >8% |
| DSCR | <1.0x | 1.0–1.25x | >1.25x |
| Gross Rent Mult. | >20x | 12–20x | <12x |
Benchmarks for 2026 single-family and small multifamily residential rentals. Commercial real estate has different standards.
💡 Pro Tip: The 50% Rule
As a quick screen, assume 50% of gross rent goes to operating expenses (not including mortgage). Example: $2,400/mo rent → ~$1,200 in expenses → $1,200 left for debt service and cash flow. If your mortgage payment is $1,400, the property loses $200/mo. This back-of-envelope rule is rough but prevents over-optimistic projections. Most beginner investors input only property taxes and insurance (25–30% of rent) and miss maintenance, vacancy, CapEx, and management — which easily push expenses to 40–55% of gross rent for typical rentals.
Rental Property Cash Flow Calculator
Purchase & Financing
Rental Income
Annual Expenses
Appreciation Assumptions
Analysis
5-Year Projection
| Yr | Rent/mo | Cash Flow | Equity | Tot. Return |
|---|---|---|---|---|
| 1 | $2,472.00 | -$2,623 | $100,541 | -$10,082 |
| 2 | $2,546.16 | -$2,057 | $114,087 | $1,407 |
| 3 | $2,622.54 | -$1,474 | $128,162 | $14,008 |
| 4 | $2,701.22 | -$874 | $142,791 | $27,763 |
| 5 | $2,782.26 | -$255 | $158,002 | $42,718 |
Based on your results — what to do next:
Qualify for a DSCR loan
Your property's DSCR is 0.85x. Most DSCR lenders require 1.25x minimum. See if this property qualifies for a no-doc rental loan.
Model different financing scenarios
Your $262,500 investment mortgage at 7.25% costs $1,790.71/mo. Try a 15-year loan or different rate to see impact on cash flow.
Add this property to your net worth
Year 5 equity of $158,002 in this rental property is a significant asset. Track your complete financial picture.
Rental Property FAQ
Is rental real estate still a good investment in 2026?
The math has tightened significantly since 2020–2021. With investment mortgage rates at 7–8% and home prices elevated, many properties in high-cost markets no longer cash flow on a leveraged basis. The value proposition has shifted: appreciation-focused markets (coastal cities) remain attractive for total return investors willing to accept short-term negative cash flow. Cash-flow markets (Midwest, Southeast) still offer positive returns if you buy below market or add value through renovation. The key adjustment in 2026: underwrite conservatively (8% vacancy, 50% expense ratio) and don't rely on rate assumptions below 7%.
Short-term rental (Airbnb) vs. long-term rental: which is better?
Short-term rentals can earn 2–3x long-term rents in the right markets but require more management (or 25–35% PM fees), higher turnover costs, and carry regulatory risk (cities banning STRs). They also have higher vacancy variance — a slow season or a regulatory change can collapse revenue overnight. Long-term rentals offer predictable cash flow, lower management intensity, and no seasonal risk. For most investors, especially those with a day job, long-term is lower risk. STRs make sense if you're active, the market is unregulated, and you can achieve 70%+ occupancy at premium rates.
How do I analyze a multi-family property vs. single-family?
Multi-family (2–4 units) provides economies of scale — one mortgage, multiple rent streams. Analysis is the same: enter the combined rent from all units. Vacancy risk is diversified (losing one of four tenants is less catastrophic than losing your only tenant). Financing differs slightly: 2–4 unit properties still qualify for residential loans with 15–25% down. 5+ units require commercial loans with different terms. For this calculator, enter total rent across all units in the "Monthly Rent" field and adjust expenses accordingly.