The primary difference is the way in which the DSCR is calculated. For STRs with at least 12 months of rental income history, the DSCR is calculated using actual rental income. For vacation rentals without at least 12 months of STR rental income history or properties used as long-term rentals, the long-term market rent is used in the calculation. Maximum LTV/LTCs are slightly lower for STRs due to the potential volatility of income for vacation rentals.