B2B SaaS founder here, several years in: this article is right on point. Additionally, using Stripe Billing is not all it's cracked up to be, as it actually doesn't solve all my problems, while taking a chunk of revenue.
I've been building parts of a billing system myself over the years and I'm considering removing the remaining external parts, because I'm not happy with their limitations (Braintree's subscriptions are really limited, and absolutely nobody does correct invoicing for my situation (EU/Poland)).
Also, in a B2B SaaS you will end up with customers on totally different payment methods. Not every business has or wants to use a credit card. So you get annual billing with proforma invoices and the complexities involved with switching from invoiced billing to credit card billing and vice versa.
I've been building parts of a billing system myself over the years and I'm considering removing the remaining external parts, because I'm not happy with their limitations (Braintree's subscriptions are really limited, and absolutely nobody does correct invoicing for my situation (EU/Poland)).
Also, in a B2B SaaS you will end up with customers on totally different payment methods. Not every business has or wants to use a credit card. So you get annual billing with proforma invoices and the complexities involved with switching from invoiced billing to credit card billing and vice versa.