Buying and running software in the United States
US enquiries divide fairly cleanly into two shapes. Founders want a narrow first version they can put in front of users and change weekly. Established service businesses — clinics, repair shops, property managers — want to replace a tool they already pay for, and arrive with a list of what the incumbent gets wrong. The second group cares more about migration of existing records than about the feature list.
Payments are card-first. Stripe is the default, and the interesting work is rarely the checkout itself: it is subscription state, proration, failed-payment recovery and the webhook handling that keeps an account's access in step with its billing status. ACH via Plaid comes up where invoice sizes make card fees material.
Tax is sales tax by state rather than a single national rate, and economic nexus means the rules follow where customers are, not where the business sits. Rates are pulled from a tax service rather than hard-coded, because they change without notice.
Two compliance items surface often enough to plan for. Sending SMS requires A2P 10DLC brand and campaign registration before traffic flows, which has lead time. Anything touching patient data raises HIPAA questions that decide the hosting and logging design, so they are settled during scoping rather than after.
Hosting is usually AWS or a managed platform the business already uses.
SaaS Development in USA
US SaaS work lives or dies on billing edge cases rather than the core product. Trials that convert, plan changes mid-cycle, seat counts that move, and cards that fail on renewal all need defined behaviour before build, because retrofitting them means reconciling money that has already moved. Stripe's webhook ordering is not promised, so subscription state is reconciled from Stripe rather than inferred from the event that happened to arrive first.