Available proration methods
CPI proration considerations
When a CPI adjustment is retroactive (effective before the last processed payment), Tango calculates a catch-up amount. The proration method on the recurring cost controls how the catch-up is computed for any partial periods in the retroactive window. The catch-up amount is presented in the Calculate Adjustment pop-up before you apply the change, so you can verify it before committing.Billing proration
For receivable leases, the same proration methods apply to billings. Prorated billings reflect the tenant’s actual days of occupancy in a partial period.How to set the proration method
The Prorate Method field is on each recurring cost record in Lease Details → Recurring Costs. Set it when creating the recurring cost or update it at any time (changes apply to future generated payments).Changes to the proration method on an existing recurring cost do not retroactively change already-generated payment records.