Where the tax bill sets the ratio
Combined school, county, city, and special-district rates commonly put Texas property tax between 1.8% and 2.7% of appraised value. On a $330,000 rental that is roughly $500 to $750 a month sitting inside PITIA before principal, interest, or insurance. It is the single biggest reason a Texas file underwrites tighter than the same rent and price would elsewhere. When the tax line pulls the ratio under 1.00, a no-ratio DSCR loan finances it anyway on select programs, at 75% LTV or lower. For the mechanics behind the ratio, read how DSCR loans work, then run your parcel through the DSCR calculator with the real tax figure.
- Verify the specific tax rate for the parcel, not a city average - special districts (MUD, PID) can add materially
- New-construction subdivisions frequently carry MUD assessments that surprise investors
- A suburban or MUD tax bill that pushes the DSCR below 1.0 is still financeable on a no-ratio program at 75% LTV or lower
- The 10% appraisal cap and homestead exemption do not transfer to an investor purchase
- A successful appraisal protest lifts the DSCR permanently, not just in year one

