Free investor tool
See how rent compares with the property's monthly housing payment. Adjust the example values to explore a scenario.
$3,040 rent after vacancy / $2,650 monthly PITIA + HOA
Cash to close · purchase
$111,550Price − modeled loan + estimated closing costs.
Loan amount · derived
$388,000$485,000 value × 80% LTV
Maximum leverage shown: 85% purchase · 80% refinance. Actual eligibility and terms depend on underwriting.
Illustrative default. Use the deal-specific price or current value.
Editable planning input. Maximum shown: 85% for purchase; actual terms depend on program and underwriting.
Use current lease rent or a supported estimate, before vacancy.
Enter principal and interest only. Add taxes and insurance below.
Use the current annual tax bill divided by 12 when available.
Use a current, property-specific insurance quote.
Include required association dues; enter zero if none.
Illustrative assumption; a lender may apply a different rent adjustment.
Editable assumption applied to price or value; excludes costs not entered here.
The next step carries these figures into the review form. Contact and property-address details are still needed.
The debt service coverage ratio (DSCR) measures whether a rental property generates enough income to cover its monthly debt obligations. This calculator takes your gross monthly rent, subtracts a vacancy factor, and divides the result by the total monthly payment including principal, interest, taxes, insurance, and HOA dues (PITIA). The output is a single ratio that lenders use to decide whether the property can carry the loan on its own merits -- without relying on your personal income or W-2 employment.
Enter your expected monthly rent in the first field, then fill in each cost line item. If you do not know exact tax or insurance figures yet, use estimates from the listing, the county assessor site, or an insurance quote. Adjust the vacancy factor to reflect your local market -- 5% is common for strong rental markets, while 8-10% is more conservative for areas with seasonal demand or higher turnover.
DSCR (Debt Service Coverage Ratio)
Net operating income divided by total debt service. A DSCR of 1.0x means the property breaks even -- rent exactly covers the payment. Above 1.0x, there is a cash-flow cushion. Below 1.0x, the property runs at a monthly deficit.
PITIA
Principal, Interest, Taxes, Insurance, and Association dues. This is the full monthly housing cost lenders use to calculate DSCR. Missing any component will overstate your ratio.
LTV (Loan-to-Value)
The loan amount divided by the appraised value of the property. Most DSCR loan programs cap LTV at 75-80% for purchases and 70-75% for cash-out refinances, though higher-ratio options exist at adjusted pricing.
Vacancy Factor
A percentage deducted from gross rent to account for turnover, vacancy between tenants, and collection loss. Even fully occupied properties should model some vacancy so your underwriting reflects realistic long-term performance.
No-Ratio DSCR
A program variant where the lender does not require the property to hit a minimum DSCR threshold. Pricing and reserve requirements are typically higher, but it allows investors to finance properties that do not yet cash-flow positively.
Suppose you are buying a duplex for $320,000 with 25% down. Market rent across both units is $2,800 per month. Here is how you would run the numbers:
A 1.25x DSCR is strong enough for most standard DSCR loan programs. You would typically qualify for competitive pricing with six months of reserves. If the ratio came in at 1.05x instead, you could still qualify, but expect a rate adjustment and potentially higher reserve requirements. Below 1.0x, you would need a no-ratio program or a larger down payment to bring the ratio up.
DSCR loans are built for investors who want the property to qualify on its own income rather than their personal tax returns. They are a strong fit in several common scenarios:
A DSCR of 1.25x or higher is considered strong by most lenders. At that level, the property generates 25% more income than the monthly debt service, providing a meaningful cushion for vacancies or unexpected expenses. Programs exist down to 1.0x and even below (no-ratio), but pricing adjusts upward and reserve requirements increase as the ratio drops.
Most lenders start with market rent (typically supported by an appraisal with a rent schedule or a 1007 rent survey) and compare it against the full PITIA payment. Some programs apply a vacancy factor on the income side, while others bake that assumption into their ratio threshold. The specific methodology depends on the capital partner and program tier.
Yes, through no-ratio or reduced-ratio programs. These are designed for properties in appreciation markets or value-add plays where current rent has not yet caught up to the debt load. Expect tighter LTV caps (often 65-70%), higher rates, and larger reserve requirements -- typically 12-18 months of PITIA.
The ratio has two sides: income and debt. On the income side, you can raise rents to market, add units or rentable space, or switch to a short-term rental model if the location supports it. On the debt side, a larger down payment reduces the loan amount and monthly P&I. Buying down the rate or choosing an interest-only period (where available) also lowers the denominator.