I use Authorize.net with Automated Recurring Billing (ARB). I only intervene to handle exceptions like an expiring card or failed transactions. I bill each cu

I use Authorize.net with Automated Recurring Billing (ARB). I only intervene to handle exceptions like an expiring card or failed transactions. I bill each customer each month on the day they signed up to avoid explaining pro-rated transactions. I don't typically email invoices or receipts, but when customers request it I setup a Blinksale recurring invoice to coincide with their billing cycle. Authorize.net CIM is great if you need to bill irregular amounts or at irregular intervals, but it requires an outside trigger to initiate a transaction. The Authorize.net ARB service is more self-contained and works for my needs. Every couple of months I reconcile my accounts spreadsheet with my recent charges to be sure that no accounts fall through the cracks.