50% Rule vs DSCR > which do you use to calculate a good rental

50% Rule vs DSCR > which do you use to calculate a good rental

Jonathan SmallPro Member
Investor · Suwanee, GA · Member since 2020 · 182 posts · 151 votes

When evaluating a potential real estate investment, both the Debt Service Coverage Ratio (DSCR) and the 50% Rule can be helpful tools. However, they approach financial health from different angles.

  • The 50% Rule is a quick estimate that suggests operating expenses (excluding mortgage principal and interest) will roughly equal 50% of the property's gross income.
  • The DSCR is a more precise calculation (Net Operating Income / Total Debt Service) that determines if a property generates enough income to cover its debt obligations.

    Deal example:
    • - Class C middle class neighborhood
    • - 4bd / 2ba single family house
    • - ARV: 190k
    • - Purchase: 105k
    • - Rehab: 35k
    • - Market rent: $1,400-1,525
    • - Section 8: $1,475
    • - Property manager: 10%
    • - Taxes: 125 month
    • - Insurance $1250 yr
    • - HOA: $55 month
    • - purchased and rehabbed with all cash. Considering doing a 75% cash out refinance > 30yr 7.45% interest rate

In what situations might the 50% Rule provide a misleading picture of a property's financial health, and when would relying solely on the DSCR potentially overlook important factors?

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  • Real Estate Agent · St Petersburg, FL · Member since 2019 · 321 posts · 182 votes
    1y

    The 50% rule - in my opinion- is used solely as a quick back of napkin calculation to determine if it is worthwhile to do more investigating of a property. 

    Though DSCR gives you a better picture of how the property is projected to perform vs debt service, you can't rely solely on one measure to make a purchase decision.

    With the numbers you provided above, you will have to ensure you have healthy reserves. Though at 1525/mth it is projected to cashflow a little less than 100/mth  -- the numbers do not include what I like to call reality numbers (vacancy loss, maintenance, capex reserves). Just one month of vacancy a year takes away any cashflow you would have. 

    I would be beneficial to determine if they are other aspects of the property that make it a worthwhile investment (tax, appreciation etc).  This goes back to the aspect that you can't rely solely on one metric. 

  • Jonathan SmallPro Member
    OP
    Investor · Suwanee, GA · Member since 2020 · 182 posts · 151 votes
    1y

    @Obed Calixte how much do you allocate for maintenance and capex?  I have found I can lower this number if I rehabbed the property myself before I rent it vs buying a tenant occupied property.

  • Real Estate Agent · St Petersburg, FL · Member since 2019 · 321 posts · 182 votes
    1y

    It's a range and depends on the property type, location, end condition and rental strategy. 

    For quick math I have a range of each between: 700/yr to 3% of gross income

  • Jonathan SmallPro Member
    OP
    Investor · Suwanee, GA · Member since 2020 · 182 posts · 151 votes
    1y

    I have a DSCR lender that is willing to do 70% cash out LTV at 7.25% OR 75% cash out LTV at 7.60%. any suggestions on how I should compare these 2 options?

    both have 5yr pre pay penalty.  I am leaning towards 75%

  • Jonathan SmallPro Member
    OP
    Investor · Suwanee, GA · Member since 2020 · 182 posts · 151 votes
    1y

    Considering a rate buydown on a DSCR loan? Let's break it down:

    Loan: $300,000

    Base Rate: 8% (P&I: $2,201)

    Buydown: 1 point ($3,000) lowers rate to 7.75% (P&I: $2,145)

    Monthly Savings: $56

    Break-even: ~54 months

    Holding long-term? Worth it. Selling/refinancing soon? Skip it!

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