Subscription websites for AI support software sold in every US state.

A tax engine such as Avalara, Anrok or Stripe Tax works out whether your product is taxable in each state, applies local rates, tracks how close you are to each state's economic nexus threshold and stores exemption certificates. Your billing address and service address logic is set once, then applied to every invoice automatically.

ROSCA sets the federal baseline: clear terms, express consent and a simple way to stop charges. States such as California and New York go further with acknowledgment emails, renewal reminders and online cancellation. The checkout and portal apply the stricter rule where a customer is located, or everywhere if you prefer one standard.

California, Texas, Virginia, Colorado and a growing list of other states give residents rights over their data, with different thresholds and response deadlines. The site carries one privacy notice with state sections, a single request form, and a workflow that tracks each request against the deadline that applies to the requester's state.

Cards and digital wallets such as Apple Pay and Google Pay for self-serve plans, ACH debit with instant bank verification for mid-market customers, and invoices with wire or check remittance for enterprise. Hosted payment fields keep card data with the processor and your PCI DSS scope minimal.

Base plans with seat counts, included AI resolutions or conversations, overage rates, prepaid credit packs and annual commitments, all modeled in the billing platform. Usage events from your product are deduplicated and rated, and customers see a running total in the portal well before the invoice arrives. Credit packs can expire or roll over according to rules you set.

Email retries and in-app banners recover failed payments. If you add text message reminders, they go only to numbers that agreed to receive them, because the Telephone Consumer Protection Act restricts automated texts. Billing notices stay transactional, so they are kept apart from marketing email covered by CAN-SPAM.

Pricing tables, checkout forms and the account area built and tested against WCAG 2.1 AA. ADA website lawsuits are filed in many states, and public sector buyers now face their own Title II web accessibility rule, so accessible pages protect you and help you win government and education contracts.

If your own AI agent answers sales questions on the site, it should say so. California requires disclosure when a bot is used to influence a purchase, and Utah has generative AI disclosure rules. We add a clear notice at the start of the chat and a human route for billing questions.

Customers upgrade, add seats, buy usage packs, update payment methods, download invoices and cancel online. Every change is pushed to your product through webhooks so features and limits follow the subscription instantly, and admins can see a full history of plan changes. Cancellation reasons are captured in a short optional survey.

Recurring revenue, expansion, contraction, churn and usage revenue reported by plan, segment and state, with exports your accounting system can import. Deferred revenue schedules for annual contracts come from the billing platform rather than a spreadsheet, so month end close and investor updates start from the same numbers your customers were invoiced.