The tenant's monthly bill

Property → Invoices → Monthly bills prints one bill per tenant per month: Charges (the rent), Utilities (water with its readings, "52 to 80, 28 units", then internet, electricity, garbage, security, service charge), Other services, and then This month, Balance brought forward, Paid in the month and Balance due.

Every line is dated by its own document: an invoice by its date, a payment by the day it was paid. Bills count from, beside Monthly bills, is the month you started billing in Kaydro. Anything dated before it stays off the bill, so no old balance is carried forward. Leave it blank and everything counts.

If balances from before you moved to Kaydro still show on tenants' bills, ask Kaydro support to clear them for your company. Payments are never touched.