Recurring residential clients
Weekly or biweekly cleans billed to a stored card are convenient for both sides. Get written consent, send reminders and use account updater so reissued cards keep working.
Commercial contracts
Offices and property managers usually pay monthly invoices. ACH is cheaper than cards for these, and Level 2 data helps when they pay by business card.
Lockouts and cancellations
If you charge for a visit where the crew could not get in, the policy must be agreed in advance. Otherwise those charges become disputes.
Pricing
Small cleaning companies should avoid monthly minimums and long contracts.