At the property owner's discretion, the annual payment may be "paid" in part or in full with additional equity rights granted to the investors. The amount "underpaid" (i.e. the amount owed minus the amount paid with cash) is converted to additional equity sharing rights at the end-of period interim home value.
Equity Sharing Increase at year n = Underpaid Amount at year n / Interim Home Value at Year n
At the property owner’s discretion, a portion of the annual income may be paid with additional equity sharing percentages. The underpaid amount (amount owed - amount paid) is divided by the
to produce the increase the equity sharing percentage for that year:
In other words, any amount the property owner opts not to pay of the annual payment they owe in a given year is automatically reinvested into the property, increasing investors' equity sharing percentage for the next year.