How to Calculate DSCR Before Applying: Step-by-Step Guide

The DSCR calculation is simple. The inputs require precision. Here’s how to do it correctly before you apply.

Want Us to Run Your DSCR? Same-Day on Any Property.

Mbanc NMLS #38232 | Equal Housing Opportunity Lender

The Formula

DSCR = Monthly Qualifying Rent ÷ Monthly PITIA

That’s it. Two numbers. One division. The result determines your program.

– DSCR ≥ 1.25, 640+ credit: 80% LTV, best terms
– DSCR ≥ 1.00, 660+ credit: 80% LTV, standard
– DSCR ≥ 1.00, 640-659 credit: 75% LTV
– DSCR 0.75–0.99, 700+ credit: 70% LTV (no-ratio)
– DSCR < 0.75: contact loan officer

Step 1 — Determine Monthly Qualifying Rent

Property with existing tenant:
The qualifying rent is the lower of: (a) the current lease rent, or (b) the appraiser’s market rent determination.

Before you have an appraisal: use the current lease as your estimate. It will be confirmed or adjusted by the appraiser.

If the current lease is significantly below market — a below-market long-term tenant, a family member at reduced rent — the appraiser’s market rent could actually increase your DSCR versus the lease amount. Flag this with your loan officer.

Vacant property (no existing tenant):
You need a market rent estimate. How to get it before paying for an appraisal:

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The investor who knows their DSCR before they make an offer is the investor who closes. The investor who finds out their DSCR after spending $800 on an inspection and $650 on an appraisal that’s discovering a problem the math already told them about — that investor is paying for lessons.

The DSCR calculation is simple. The inputs require precision. Here’s how to do it correctly before you apply.

Want Us to Run Your DSCR? Same-Day on Any Property.

Mbanc NMLS #38232 | Equal Housing Opportunity Lender

The Formula

DSCR = Monthly Qualifying Rent ÷ Monthly PITIA

That’s it. Two numbers. One division. The result determines your program.

– DSCR ≥ 1.25, 640+ credit: 80% LTV, best terms
– DSCR ≥ 1.00, 660+ credit: 80% LTV, standard
– DSCR ≥ 1.00, 640-659 credit: 75% LTV
– DSCR 0.75–0.99, 700+ credit: 70% LTV (no-ratio)
– DSCR < 0.75: contact loan officer

Step 1 — Determine Monthly Qualifying Rent

Property with existing tenant:
The qualifying rent is the lower of: (a) the current lease rent, or (b) the appraiser’s market rent determination.

Before you have an appraisal: use the current lease as your estimate. It will be confirmed or adjusted by the appraiser.

If the current lease is significantly below market — a below-market long-term tenant, a family member at reduced rent — the appraiser’s market rent could actually increase your DSCR versus the lease amount. Flag this with your loan officer.

Vacant property (no existing tenant):
You need a market rent estimate. How to get it before paying for an appraisal:
1. Search Zillow/Realtor.com for active rental listings in the same zip code, same bedroom count, similar square footage and year built.
2. Find 3–5 comparables that have rented in the last 60–90 days (look for “recently rented” or call the listing agent).
3. Average the comparable rents. This is your pre-appraisal estimate.
4. Be conservative — the appraiser’s confirmed figure may be 5–10% below your estimate on a vacant property.

Step 2 — Build the PITIA

PITIA = Principal + Interest + Taxes + Insurance + Association dues (HOA)

Principal and Interest (P&I):
Use a mortgage calculator. Inputs: loan amount (purchase price × target LTV), interest rate (call Mbanc for current DSCR rates — they differ from conventional and change with market conditions), loan term (30-year is most common).

Current DSCR rates: call your loan officer. Don’t use Bankrate’s conventional rate averages — DSCR rates run higher and the difference matters in DSCR calculations.

Taxes (T):
Look up the actual property tax on the county appraisal district or assessor website. Every state publishes this. Search “[County Name] property tax” to find the assessor portal. Enter the property address. Get the current annual tax bill. Divide by 12.

Warning: The current tax bill on a property that hasn’t recently sold may be significantly below what taxes will be post-sale reassessment. In states with assessment caps (California’s Prop 13) or in states where assessments lag sales prices, post-purchase taxes can jump substantially. Ask your loan officer about reassessment risk in the specific county.

Insurance (I):
For an initial estimate, use: $1.00–$1.50 per $1,000 of home value per year in most states ($1,200–$1,800 annually on a $1,200,000 home) → $100–$150/month. This is rough. Get an actual quote before finalizing the analysis.

Florida insurance is the exception: Florida homeowners insurance runs dramatically higher than national averages due to hurricane/wind risk. Properties near the coast or with older roofs can run $3,000–$8,000+/year. Always get a Florida-specific quote before calculating DSCR on any Florida property.

HOA/Association Dues (A):
Get the actual HOA amount from the listing or HOA documents. Do not use the listing agent’s estimate — agents frequently understate HOA amounts. Pull the HOA financial disclosure or call the management company.

HOA is the most frequently underestimated PITIA component. A $450/month HOA on a Miami Beach condo can move DSCR from 0.95 to 0.72.

Step 3 — Do the Division

DSCR = Rent ÷ PITIA

If the result is ≥ 1.00: standard program. Start the application.

If the result is 0.75–0.99: no-ratio program territory. Check that you have 700+ credit and 12 months of reserves available. If yes, still a viable deal — just at 70% LTV.

If the result is below 0.75: call your loan officer. Options exist below 0.75 but program availability narrows.

Step 4 — Run Sensitivity Analysis

Before making an offer, run the calculation at multiple LTV points:

The investor who runs this table knows exactly how much down payment is required to achieve standard DSCR — and can decide whether the additional down payment is worth avoiding the no-ratio reserve requirement.

Full Worked Example: Dallas SFR

Property: 3BR/2BA SFR in Garland, TX. Purchase price: $268,000.
Existing tenant: $1,950/month lease with 8 months remaining.
Target LTV: 80%

Step 1 — Qualifying rent: $1,950/month (current lease; confirm this is at or near market).

Step 2 — Build PITIA:
– Loan: $268,000 × 80% = $214,400
– P&I at 8.125% (current DSCR rate estimate), 30-year: call Mbanc for exact → estimated $1,597/month
– Dallas County taxes: look up actual parcel → estimated 2.2% on $268K = $491/month
– Insurance: actual quote → $118/month
– HOA: $0 (SFR, no HOA)
– PITIA: $2,206/month

Step 3 — Calculate DSCR: $1,950 ÷ $2,206 = 0.88. No-ratio.

Step 4 — Sensitivity:
At 75% LTV ($201,000 loan): P&I ~$1,498. PITIA: $2,107. DSCR: 0.93. Still no-ratio.
At 70% LTV ($187,600 loan): P&I ~$1,399. PITIA: $2,008. DSCR: $1,950 ÷ $2,008 = 0.97. No-ratio.

To hit standard DSCR (1.00+): need either higher rent or lower PITIA. Negotiating purchase price to $248,000: at 80% LTV ($198,400 loan), P&I: $1,479. PITIA: $2,088. DSCR: $1,950 ÷ $2,088 = 0.93. Still below.

At $235,000 purchase, 80% LTV ($188,000), P&I $1,401, taxes $455, insurance $112, PITIA: $1,968. DSCR: $1,950 ÷ $1,968 = 0.99. Barely below.

Conclusion: At current rent ($1,950), Dallas’s 2.2% property taxes prevent standard DSCR at 80% LTV at any reasonable purchase price in this range. Investor options: accept no-ratio at 70% LTV (has 700+ credit, 12 months reserves), or pass and look for a lower-priced property or higher-rent market.

This analysis costs the investor nothing to run upfront. It costs $1,500 in appraisal and inspection fees if they find out after going under contract.

The One Number You Must Confirm Before Modeling

The property tax rate.

In Texas, the difference between a 2.0% and 2.5% effective county rate on a $300,000 property is $125/month in PITIA — which is 5–6 DSCR basis points. In Florida, insurance variability can swing $200–$400/month. These single variables can determine program eligibility.

Always pull the actual tax record and get an actual insurance quote before declaring a deal viable.

Frequently Asked Questions

Can Mbanc calculate my DSCR for me? Yes — call or apply online and a loan officer will run the DSCR on any property address, same day.

Does DSCR change based on loan term (30-year vs 40-year)? Yes. A 40-year loan has lower P&I than a 30-year on the same amount — which lowers PITIA and raises DSCR. The trade-off: slower equity build and usually a higher rate.

What if I’m buying below market price? The appraisal may confirm a higher value — LTV is based on the lower of purchase price or appraised value. If buying at $250K and the appraisal comes in at $280K, your LTV is still calculated on $250K.

How accurate is a pre-application DSCR estimate? Close, but not definitive. The appraisal (market rent) and actual insurance quote are the two variables that move from estimates to confirmed numbers at application. In most markets, good research produces a pre-appraisal estimate within 5–10% of final DSCR.

About the Author: Mayer Dallal — Managing Director, Mbanc NMLS #38232. [mbanc.com/blog/author/mayer-dallal/]
Not a commitment to lend. Mbanc NMLS #38232 | Equal Housing Opportunity Lender

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The DSCR calculation is simple. The inputs require precision. Here’s how to do it correctly before you apply.

Want Us to Run Your DSCR? Same-Day on Any Property.

Mbanc NMLS #38232 | Equal Housing Opportunity Lender

The Formula

DSCR = Monthly Qualifying Rent ÷ Monthly PITIA

That’s it. Two numbers. One division. The result determines your program.

– DSCR ≥ 1.25, 640+ credit: 80% LTV, best terms
– DSCR ≥ 1.00, 660+ credit: 80% LTV, standard
– DSCR ≥ 1.00, 640-659 credit: 75% LTV
– DSCR 0.75–0.99, 700+ credit: 70% LTV (no-ratio)
– DSCR < 0.75: contact loan officer

Step 1 — Determine Monthly Qualifying Rent

Property with existing tenant:
The qualifying rent is the lower of: (a) the current lease rent, or (b) the appraiser’s market rent determination.

Before you have an appraisal: use the current lease as your estimate. It will be confirmed or adjusted by the appraiser.

If the current lease is significantly below market — a below-market long-term tenant, a family member at reduced rent — the appraiser’s market rent could actually increase your DSCR versus the lease amount. Flag this with your loan officer.

Vacant property (no existing tenant):
You need a market rent estimate. How to get it before paying for an appraisal:
1. Search Zillow/Realtor.com for active rental listings in the same zip code, same bedroom count, similar square footage and year built.
2. Find 3–5 comparables that have rented in the last 60–90 days (look for “recently rented” or call the listing agent).
3. Average the comparable rents. This is your pre-appraisal estimate.
4. Be conservative — the appraiser’s confirmed figure may be 5–10% below your estimate on a vacant property.

Step 2 — Build the PITIA

PITIA = Principal + Interest + Taxes + Insurance + Association dues (HOA)

Principal and Interest (P&I):
Use a mortgage calculator. Inputs: loan amount (purchase price × target LTV), interest rate (call Mbanc for current DSCR rates — they differ from conventional and change with market conditions), loan term (30-year is most common).

Current DSCR rates: call your loan officer. Don’t use Bankrate’s conventional rate averages — DSCR rates run higher and the difference matters in DSCR calculations.

Taxes (T):
Look up the actual property tax on the county appraisal district or assessor website. Every state publishes this. Search “[County Name] property tax” to find the assessor portal. Enter the property address. Get the current annual tax bill. Divide by 12.

Warning: The current tax bill on a property that hasn’t recently sold may be significantly below what taxes will be post-sale reassessment. In states with assessment caps (California’s Prop 13) or in states where assessments lag sales prices, post-purchase taxes can jump substantially. Ask your loan officer about reassessment risk in the specific county.

Insurance (I):
For an initial estimate, use: $1.00–$1.50 per $1,000 of home value per year in most states ($1,200–$1,800 annually on a $1,200,000 home) → $100–$150/month. This is rough. Get an actual quote before finalizing the analysis.

Florida insurance is the exception: Florida homeowners insurance runs dramatically higher than national averages due to hurricane/wind risk. Properties near the coast or with older roofs can run $3,000–$8,000+/year. Always get a Florida-specific quote before calculating DSCR on any Florida property.

HOA/Association Dues (A):
Get the actual HOA amount from the listing or HOA documents. Do not use the listing agent’s estimate — agents frequently understate HOA amounts. Pull the HOA financial disclosure or call the management company.

HOA is the most frequently underestimated PITIA component. A $450/month HOA on a Miami Beach condo can move DSCR from 0.95 to 0.72.

Step 3 — Do the Division

DSCR = Rent ÷ PITIA

If the result is ≥ 1.00: standard program. Start the application.

If the result is 0.75–0.99: no-ratio program territory. Check that you have 700+ credit and 12 months of reserves available. If yes, still a viable deal — just at 70% LTV.

If the result is below 0.75: call your loan officer. Options exist below 0.75 but program availability narrows.

Step 4 — Run Sensitivity Analysis

Before making an offer, run the calculation at multiple LTV points:

The investor who runs this table knows exactly how much down payment is required to achieve standard DSCR — and can decide whether the additional down payment is worth avoiding the no-ratio reserve requirement.

Full Worked Example: Dallas SFR

Property: 3BR/2BA SFR in Garland, TX. Purchase price: $268,000.
Existing tenant: $1,950/month lease with 8 months remaining.
Target LTV: 80%

Step 1 — Qualifying rent: $1,950/month (current lease; confirm this is at or near market).

Step 2 — Build PITIA:
– Loan: $268,000 × 80% = $214,400
– P&I at 8.125% (current DSCR rate estimate), 30-year: call Mbanc for exact → estimated $1,597/month
– Dallas County taxes: look up actual parcel → estimated 2.2% on $268K = $491/month
– Insurance: actual quote → $118/month
– HOA: $0 (SFR, no HOA)
– PITIA: $2,206/month

Step 3 — Calculate DSCR: $1,950 ÷ $2,206 = 0.88. No-ratio.

Step 4 — Sensitivity:
At 75% LTV ($201,000 loan): P&I ~$1,498. PITIA: $2,107. DSCR: 0.93. Still no-ratio.
At 70% LTV ($187,600 loan): P&I ~$1,399. PITIA: $2,008. DSCR: $1,950 ÷ $2,008 = 0.97. No-ratio.

To hit standard DSCR (1.00+): need either higher rent or lower PITIA. Negotiating purchase price to $248,000: at 80% LTV ($198,400 loan), P&I: $1,479. PITIA: $2,088. DSCR: $1,950 ÷ $2,088 = 0.93. Still below.

At $235,000 purchase, 80% LTV ($188,000), P&I $1,401, taxes $455, insurance $112, PITIA: $1,968. DSCR: $1,950 ÷ $1,968 = 0.99. Barely below.

Conclusion: At current rent ($1,950), Dallas’s 2.2% property taxes prevent standard DSCR at 80% LTV at any reasonable purchase price in this range. Investor options: accept no-ratio at 70% LTV (has 700+ credit, 12 months reserves), or pass and look for a lower-priced property or higher-rent market.

This analysis costs the investor nothing to run upfront. It costs $1,500 in appraisal and inspection fees if they find out after going under contract.

The One Number You Must Confirm Before Modeling

The property tax rate.

In Texas, the difference between a 2.0% and 2.5% effective county rate on a $300,000 property is $125/month in PITIA — which is 5–6 DSCR basis points. In Florida, insurance variability can swing $200–$400/month. These single variables can determine program eligibility.

Always pull the actual tax record and get an actual insurance quote before declaring a deal viable.

Frequently Asked Questions

Can Mbanc calculate my DSCR for me? Yes — call or apply online and a loan officer will run the DSCR on any property address, same day.

Does DSCR change based on loan term (30-year vs 40-year)? Yes. A 40-year loan has lower P&I than a 30-year on the same amount — which lowers PITIA and raises DSCR. The trade-off: slower equity build and usually a higher rate.

What if I’m buying below market price? The appraisal may confirm a higher value — LTV is based on the lower of purchase price or appraised value. If buying at $250K and the appraisal comes in at $280K, your LTV is still calculated on $250K.

How accurate is a pre-application DSCR estimate? Close, but not definitive. The appraisal (market rent) and actual insurance quote are the two variables that move from estimates to confirmed numbers at application. In most markets, good research produces a pre-appraisal estimate within 5–10% of final DSCR.

About the Author: Mayer Dallal — Managing Director, Mbanc NMLS #38232. [mbanc.com/blog/author/mayer-dallal/]
Not a commitment to lend. Mbanc NMLS #38232 | Equal Housing Opportunity Lender

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The DSCR calculation is simple. The inputs require precision. Here’s how to do it correctly before you apply.

Want Us to Run Your DSCR? Same-Day on Any Property.

Mbanc NMLS #38232 | Equal Housing Opportunity Lender

The Formula

DSCR = Monthly Qualifying Rent ÷ Monthly PITIA

That’s it. Two numbers. One division. The result determines your program.

– DSCR ≥ 1.25, 640+ credit: 80% LTV, best terms
– DSCR ≥ 1.00, 660+ credit: 80% LTV, standard
– DSCR ≥ 1.00, 640-659 credit: 75% LTV
– DSCR 0.75–0.99, 700+ credit: 70% LTV (no-ratio)
– DSCR < 0.75: contact loan officer

Step 1 — Determine Monthly Qualifying Rent

Property with existing tenant:
The qualifying rent is the lower of: (a) the current lease rent, or (b) the appraiser’s market rent determination.

Before you have an appraisal: use the current lease as your estimate. It will be confirmed or adjusted by the appraiser.

If the current lease is significantly below market — a below-market long-term tenant, a family member at reduced rent — the appraiser’s market rent could actually increase your DSCR versus the lease amount. Flag this with your loan officer.

Vacant property (no existing tenant):
You need a market rent estimate. How to get it before paying for an appraisal:
1. Search Zillow/Realtor.com for active rental listings in the same zip code, same bedroom count, similar square footage and year built.
2. Find 3–5 comparables that have rented in the last 60–90 days (look for “recently rented” or call the listing agent).
3. Average the comparable rents. This is your pre-appraisal estimate.
4. Be conservative — the appraiser’s confirmed figure may be 5–10% below your estimate on a vacant property.

Step 2 — Build the PITIA

PITIA = Principal + Interest + Taxes + Insurance + Association dues (HOA)

Principal and Interest (P&I):
Use a mortgage calculator. Inputs: loan amount (purchase price × target LTV), interest rate (call Mbanc for current DSCR rates — they differ from conventional and change with market conditions), loan term (30-year is most common).

Current DSCR rates: call your loan officer. Don’t use Bankrate’s conventional rate averages — DSCR rates run higher and the difference matters in DSCR calculations.

Taxes (T):
Look up the actual property tax on the county appraisal district or assessor website. Every state publishes this. Search “[County Name] property tax” to find the assessor portal. Enter the property address. Get the current annual tax bill. Divide by 12.

Warning: The current tax bill on a property that hasn’t recently sold may be significantly below what taxes will be post-sale reassessment. In states with assessment caps (California’s Prop 13) or in states where assessments lag sales prices, post-purchase taxes can jump substantially. Ask your loan officer about reassessment risk in the specific county.

Insurance (I):
For an initial estimate, use: $1.00–$1.50 per $1,000 of home value per year in most states ($1,200–$1,800 annually on a $1,200,000 home) → $100–$150/month. This is rough. Get an actual quote before finalizing the analysis.

Florida insurance is the exception: Florida homeowners insurance runs dramatically higher than national averages due to hurricane/wind risk. Properties near the coast or with older roofs can run $3,000–$8,000+/year. Always get a Florida-specific quote before calculating DSCR on any Florida property.

HOA/Association Dues (A):
Get the actual HOA amount from the listing or HOA documents. Do not use the listing agent’s estimate — agents frequently understate HOA amounts. Pull the HOA financial disclosure or call the management company.

HOA is the most frequently underestimated PITIA component. A $450/month HOA on a Miami Beach condo can move DSCR from 0.95 to 0.72.

Step 3 — Do the Division

DSCR = Rent ÷ PITIA

If the result is ≥ 1.00: standard program. Start the application.

If the result is 0.75–0.99: no-ratio program territory. Check that you have 700+ credit and 12 months of reserves available. If yes, still a viable deal — just at 70% LTV.

If the result is below 0.75: call your loan officer. Options exist below 0.75 but program availability narrows.

Step 4 — Run Sensitivity Analysis

Before making an offer, run the calculation at multiple LTV points:

The investor who runs this table knows exactly how much down payment is required to achieve standard DSCR — and can decide whether the additional down payment is worth avoiding the no-ratio reserve requirement.

Full Worked Example: Dallas SFR

Property: 3BR/2BA SFR in Garland, TX. Purchase price: $268,000.
Existing tenant: $1,950/month lease with 8 months remaining.
Target LTV: 80%

Step 1 — Qualifying rent: $1,950/month (current lease; confirm this is at or near market).

Step 2 — Build PITIA:
– Loan: $268,000 × 80% = $214,400
– P&I at 8.125% (current DSCR rate estimate), 30-year: call Mbanc for exact → estimated $1,597/month
– Dallas County taxes: look up actual parcel → estimated 2.2% on $268K = $491/month
– Insurance: actual quote → $118/month
– HOA: $0 (SFR, no HOA)
– PITIA: $2,206/month

Step 3 — Calculate DSCR: $1,950 ÷ $2,206 = 0.88. No-ratio.

Step 4 — Sensitivity:
At 75% LTV ($201,000 loan): P&I ~$1,498. PITIA: $2,107. DSCR: 0.93. Still no-ratio.
At 70% LTV ($187,600 loan): P&I ~$1,399. PITIA: $2,008. DSCR: $1,950 ÷ $2,008 = 0.97. No-ratio.

To hit standard DSCR (1.00+): need either higher rent or lower PITIA. Negotiating purchase price to $248,000: at 80% LTV ($198,400 loan), P&I: $1,479. PITIA: $2,088. DSCR: $1,950 ÷ $2,088 = 0.93. Still below.

At $235,000 purchase, 80% LTV ($188,000), P&I $1,401, taxes $455, insurance $112, PITIA: $1,968. DSCR: $1,950 ÷ $1,968 = 0.99. Barely below.

Conclusion: At current rent ($1,950), Dallas’s 2.2% property taxes prevent standard DSCR at 80% LTV at any reasonable purchase price in this range. Investor options: accept no-ratio at 70% LTV (has 700+ credit, 12 months reserves), or pass and look for a lower-priced property or higher-rent market.

This analysis costs the investor nothing to run upfront. It costs $1,500 in appraisal and inspection fees if they find out after going under contract.

The One Number You Must Confirm Before Modeling

The property tax rate.

In Texas, the difference between a 2.0% and 2.5% effective county rate on a $300,000 property is $125/month in PITIA — which is 5–6 DSCR basis points. In Florida, insurance variability can swing $200–$400/month. These single variables can determine program eligibility.

Always pull the actual tax record and get an actual insurance quote before declaring a deal viable.

Frequently Asked Questions

Can Mbanc calculate my DSCR for me? Yes — call or apply online and a loan officer will run the DSCR on any property address, same day.

Does DSCR change based on loan term (30-year vs 40-year)? Yes. A 40-year loan has lower P&I than a 30-year on the same amount — which lowers PITIA and raises DSCR. The trade-off: slower equity build and usually a higher rate.

What if I’m buying below market price? The appraisal may confirm a higher value — LTV is based on the lower of purchase price or appraised value. If buying at $250K and the appraisal comes in at $280K, your LTV is still calculated on $250K.

How accurate is a pre-application DSCR estimate? Close, but not definitive. The appraisal (market rent) and actual insurance quote are the two variables that move from estimates to confirmed numbers at application. In most markets, good research produces a pre-appraisal estimate within 5–10% of final DSCR.

About the Author: Mayer Dallal — Managing Director, Mbanc NMLS #38232. [mbanc.com/blog/author/mayer-dallal/]
Not a commitment to lend. Mbanc NMLS #38232 | Equal Housing Opportunity Lender

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Step 2 — Build the PITIA

PITIA = Principal + Interest + Taxes + Insurance + Association dues (HOA)

Principal and Interest (P&I):
Use a mortgage calculator. Inputs: loan amount (purchase price × target LTV), interest rate (call Mbanc for current DSCR rates — they differ from conventional and change with market conditions), loan term (30-year is most common).

Current DSCR rates: call your loan officer. Don’t use Bankrate’s conventional rate averages — DSCR rates run higher and the difference matters in DSCR calculations.

Taxes (T):
Look up the actual property tax on the county appraisal district or assessor website. Every state publishes this. Search “[County Name] property tax” to find the assessor portal. Enter the property address. Get the current annual tax bill. Divide by 12.

Warning: The current tax bill on a property that hasn’t recently sold may be significantly below what taxes will be post-sale reassessment. In states with assessment caps (California’s Prop 13) or in states where assessments lag sales prices, post-purchase taxes can jump substantially. Ask your loan officer about reassessment risk in the specific county.

Insurance (I):
For an initial estimate, use: $1.00–$1.50 per $1,000 of home value per year in most states ($1,200–$1,800 annually on a $1,200,000 home) → $100–$150/month. This is rough. Get an actual quote before finalizing the analysis.

Florida insurance is the exception: Florida homeowners insurance runs dramatically higher than national averages due to hurricane/wind risk. Properties near the coast or with older roofs can run $3,000–$8,000+/year. Always get a Florida-specific quote before calculating DSCR on any Florida property.

HOA/Association Dues (A):
Get the actual HOA amount from the listing or HOA documents. Do not use the listing agent’s estimate — agents frequently understate HOA amounts. Pull the HOA financial disclosure or call the management company.

HOA is the most frequently underestimated PITIA component. A $450/month HOA on a Miami Beach condo can move DSCR from 0.95 to 0.72.

Step 3 — Do the Division

DSCR = Rent ÷ PITIA

If the result is ≥ 1.00: standard program. Start the application.

If the result is 0.75–0.99: no-ratio program territory. Check that you have 700+ credit and 12 months of reserves available. If yes, still a viable deal — just at 70% LTV.

If the result is below 0.75: call your loan officer. Options exist below 0.75 but program availability narrows.

Step 4 — Run Sensitivity Analysis

Before making an offer, run the calculation at multiple LTV points:

The investor who runs this table knows exactly how much down payment is required to achieve standard DSCR — and can decide whether the additional down payment is worth avoiding the no-ratio reserve requirement.

Full Worked Example: Dallas SFR

Property: 3BR/2BA SFR in Garland, TX. Purchase price: $268,000.
Existing tenant: $1,950/month lease with 8 months remaining.
Target LTV: 80%

Step 1 — Qualifying rent: $1,950/month (current lease; confirm this is at or near market).

Step 2 — Build PITIA:
– Loan: $268,000 × 80% = $214,400
– P&I at 8.125% (current DSCR rate estimate), 30-year: call Mbanc for exact → estimated $1,597/month
– Dallas County taxes: look up actual parcel → estimated 2.2% on $268K = $491/month
– Insurance: actual quote → $118/month
– HOA: $0 (SFR, no HOA)
– PITIA: $2,206/month

Step 3 — Calculate DSCR: $1,950 ÷ $2,206 = 0.88. No-ratio.

Step 4 — Sensitivity:
At 75% LTV ($201,000 loan): P&I ~$1,498. PITIA: $2,107. DSCR: 0.93. Still no-ratio.
At 70% LTV ($187,600 loan): P&I ~$1,399. PITIA: $2,008. DSCR: $1,950 ÷ $2,008 = 0.97. No-ratio.

To hit standard DSCR (1.00+): need either higher rent or lower PITIA. Negotiating purchase price to $248,000: at 80% LTV ($198,400 loan), P&I: $1,479. PITIA: $2,088. DSCR: $1,950 ÷ $2,088 = 0.93. Still below.

At $235,000 purchase, 80% LTV ($188,000), P&I $1,401, taxes $455, insurance $112, PITIA: $1,968. DSCR: $1,950 ÷ $1,968 = 0.99. Barely below.

Conclusion: At current rent ($1,950), Dallas’s 2.2% property taxes prevent standard DSCR at 80% LTV at any reasonable purchase price in this range. Investor options: accept no-ratio at 70% LTV (has 700+ credit, 12 months reserves), or pass and look for a lower-priced property or higher-rent market.

This analysis costs the investor nothing to run upfront. It costs $1,500 in appraisal and inspection fees if they find out after going under contract.

The One Number You Must Confirm Before Modeling

The property tax rate.

In Texas, the difference between a 2.0% and 2.5% effective county rate on a $300,000 property is $125/month in PITIA — which is 5–6 DSCR basis points. In Florida, insurance variability can swing $200–$400/month. These single variables can determine program eligibility.

Always pull the actual tax record and get an actual insurance quote before declaring a deal viable.

Frequently Asked Questions

Can Mbanc calculate my DSCR for me? Yes — call or apply online and a loan officer will run the DSCR on any property address, same day.

Does DSCR change based on loan term (30-year vs 40-year)? Yes. A 40-year loan has lower P&I than a 30-year on the same amount — which lowers PITIA and raises DSCR. The trade-off: slower equity build and usually a higher rate.

What if I’m buying below market price? The appraisal may confirm a higher value — LTV is based on the lower of purchase price or appraised value. If buying at $250K and the appraisal comes in at $280K, your LTV is still calculated on $250K.

How accurate is a pre-application DSCR estimate? Close, but not definitive. The appraisal (market rent) and actual insurance quote are the two variables that move from estimates to confirmed numbers at application. In most markets, good research produces a pre-appraisal estimate within 5–10% of final DSCR.

About the Author: Mayer Dallal — Managing Director, Mbanc NMLS #38232. [mbanc.com/blog/author/mayer-dallal/]
Not a commitment to lend. Mbanc NMLS #38232 | Equal Housing Opportunity Lender

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