Services · Ecommerce development · AI sales assistant subscription sites

Subscription platforms that sell your AI sales assistant in every state you reach.

Codeeo handles AI sales assistant subscription website development USA software companies need once customers arrive from many states at once. We build the pricing site, checkout, recurring billing, account area and back office connections for your assistant, and we design them around the national rules that decide whether a subscription business runs cleanly: sales tax nexus after the Supreme Court's Wayfair decision, federal and state automatic renewal law, a growing set of state privacy statutes, PCI DSS and website accessibility.

A buyer in Phoenix, a franchise group in Atlanta and an enterprise team in Chicago should all be able to buy correctly without a rep rewriting the invoice. That is the job of the platform. Our team works with US clients remotely, with discovery and reviews by video call.

Built for
AI sales assistant vendors selling subscriptions to businesses across several US states, from first national launch to multi-entity enterprise accounts.
Typical timeline
Agreed during discovery after we map plans, states, tax exposure and integrations, then set out stage by stage in the written scope before any design work.
What you own
Source code, billing and tax configuration, processor accounts, consent and privacy logs, and every customer and subscription record, in accounts your company owns.
Rated
4.7 / 5 from 23 Google reviews

200+ companies across the US and the UAEFrom a first store to a listed developer

Modon
Majid Al Futtaim
HP
Belkin
Dulsco Group
OneClickDrive
Hanayen
HMS
Clocksprings
Ghezlan

What the platform covers

A billing platform that respects fifty sets of state rules.

Selling an AI assistant nationally is mostly a coordination problem. Each state decides whether hosted software is taxable and at what point your sales there create a duty to collect. Federal law under the Restore Online Shoppers' Confidence Act sets a baseline for online subscriptions, while states such as California and New York add their own renewal rules. Comprehensive consumer privacy laws now exist in many states, from California and Virginia to Colorado and Texas, each with its own definitions.

None of this should slow a buyer down. The work is to keep the rules in configuration, not in the heads of your sales or finance staff, so the right tax, disclosures and rights apply automatically to each customer. These are the parts we build for a national rollout.

Explain your project
  • Multistate tax calculation and nexus tracking

    A tax engine such as Avalara or Stripe Tax calculates each invoice by customer address and tracks your sales against every state's economic nexus threshold. When you cross one, it tells you before you owe tax you did not collect, and registration can be planned rather than discovered in an audit.

    Tax collected where it is due and nowhere else.

  • Taxability rules for software by state

    Hosted software is taxed in some states, partly taxed in others and exempt in many. Texas taxes it on a reduced base, New York treats it as prewritten software, and California generally does not tax it. We map each of your products and add-ons to the right tax codes so bundled charges are treated correctly.

    Invoices that reflect each state's own treatment.

  • Exemption certificate collection

    Resellers, nonprofits and some public bodies are exempt from sales tax but must prove it. The checkout and account area collect certificates, validate them where the tax service supports it and remind customers before they expire, so exemptions are documented and current.

    Exempt customers billed correctly with proof on file.

  • Renewal disclosures and cancellation

    Clear renewal terms at checkout, recorded consent, confirmation emails and an online cancel path meet the federal ROSCA baseline. Stricter state requirements, such as California's annual reminders, switch on by customer location or apply everywhere if you prefer one standard.

    One renewal process that holds up in any state.

  • Privacy rights across state laws

    A single request portal handles access, correction, deletion and opt-out requests, applying the rights available in the requester's state. Opt-out preference signals such as Global Privacy Control are honored for advertising and analytics tags, as several state laws now require.

    Privacy requests handled consistently nationwide.

  • Recurring ACH with proper authorization

    Many US businesses prefer bank debit for monthly software. We set up ACH through your processor with an authorization screen that meets Nacha rules for recurring debits, alongside cards, Apple Pay and Google Pay. Card entry uses hosted fields so your PCI DSS scope stays small.

    Lower payment costs on larger accounts.

  • Supplier portal invoicing

    Large US companies often require invoices to be submitted through procurement portals such as Coupa or SAP Ariba, with a W-9 and banking details on file. The platform generates portal-ready invoices with PO references and tracks which accounts need them.

    Enterprise invoices accepted the first time.

  • Plan changes and proration

    Customers upgrade, downgrade, add seats or locations and switch between monthly and annual billing from the account area. Proration follows your rules and is shown before confirmation, and entitlements in the assistant update through webhooks the moment the change is saved.

    Expansion revenue without support tickets.

  • Billing integration services

    As AI sales assistant billing integration services USA finance teams can audit, we connect billing to your ledger, such as NetSuite, QuickBooks or Business Central, sync subscription and usage data to your CRM, and feed revenue reporting, so recurring revenue figures match across systems every month.

    One version of revenue for finance and sales.

  • Usage metering and entitlements

    Your assistant reports conversations, texts or call minutes to the billing engine as they happen. Each plan carries an allowance, customers see live usage in their account and receive alerts before overage, and entitlements such as channels or CRM connectors are switched on or off from the plan record rather than by hand.

    AI running costs passed through openly and predictably.

Who this is for

Four national situations we plan for.

The US market for sales tools spans franchise systems, dealer networks, insurance and mortgage agencies, home services and enterprise sales teams, spread across time zones and tax regimes. AI sales assistant SaaS website development USA vendors commission usually starts when a regional business goes national, or when billing that worked for a few hundred customers starts producing errors. These are the four starting points we meet most.

Time zones affect billing too. Renewal charges, usage resets and reminder emails should run on each customer's local calendar, so an account in Honolulu is not billed for a month that has not ended yet.

01

A regional vendor going national

You built your customer base in one or two states and billing was simple. Now customers arrive from everywhere and you are unsure where you owe tax or which renewal rules apply. We audit your current setup, map your state exposure with your tax adviser, and rebuild checkout and billing so national expansion does not create hidden liabilities. Existing customers keep their dates and prices through the change, and new states can be added later without touching code.

A nexus review before launch is cheaper than a voluntary disclosure later.

02

A vendor selling to franchise and dealer networks

Franchisors and dealer groups buy for locations in many states, and each location may be a separate legal entity. We build parent accounts with locations that carry their own addresses, tax status and payment method, while head office sees a consolidated view and can enforce which plan each location uses. When a franchisee sells or closes a unit, its subscription can be transferred or ended without disturbing the rest of the network.

03

An international vendor entering the US

Your assistant already sells in Europe or the Middle East and you are adding US customers. We add US dollar plans, US tax handling, ACH, American English content and US privacy notices, and decide with you whether to extend your existing billing instance or run a separate US entity on its own processor account. Pricing pages are rewritten for US buyers rather than converted, since terms, examples and tax wording all differ.

The entity structure is a decision for your advisers; we build to it.

04

A vertical vendor in one regulated industry

You sell an assistant only to insurance agencies, mortgage brokers or auto dealers across many states. Those buyers expect industry terminology, state-specific licensing fields in their account, and integrations with the platforms their sector uses. We shape the plans and onboarding around that industry, so the platform feels built for them. Pricing can reflect how that industry measures sales, such as per agent, per rooftop or per loan officer.

Six steps to a subscription platform ready for national scale.

  1. 01National discoveryWe document plans, billing units, target states, current nexus position, renewal policies, privacy duties and every system that needs subscription data, working with your finance and legal advisers.
  2. 02Rules mapped to configurationTax codes, renewal disclosures, privacy rights and payment methods mapped by state and by product, so behavior is set in configuration rather than by staff.
  3. 03Pricing and checkout designPlan comparison, usage estimates, checkout, invoice requests and account screens designed and tested with buyers from different regions and company sizes.
  4. 04Billing, tax and integration buildBilling and tax engines configured, ACH and card flows connected, CRM and ledger integrations built and entitlement webhooks wired to your assistant.
  5. 05Scenario testing across statesTest customers in taxable and exempt states, with plan changes, exemptions, failed payments, cancellations and privacy requests, run across simulated billing periods.
  6. 06Staged rolloutLaunch to new customers first, then migrate existing subscriptions in batches with reconciled totals, and review tax and billing reports after each cycle.

Technology

What we build this with.

Usually Next.js or WordPress for the public site, Stripe Billing, Chargebee or Recurly for subscriptions, Avalara or Stripe Tax for sales tax, a consent platform for opt-out signals, and webhooks into your assistant, CRM and ledger. Interfaces are built to WCAG 2.2 AA. Hosting is chosen with you, usually on a major US cloud region, and the stack is documented so your own engineers can maintain plans, prices and integrations after handover.

01Web

  • React
  • Next.js
  • TypeScript
  • Node.js
  • Laravel
  • WordPress

02Commerce

  • Shopify Plus
  • WooCommerce
  • BigCommerce
  • Headless storefronts

03Data and cloud

  • PostgreSQL
  • MySQL
  • MongoDB
  • AWS
  • Azure
  • Docker

04Marketing and tracking

  • GA4
  • Google Tag Manager
  • Search Console
  • Meta Pixel
  • Looker Studio

Questions vendors ask before a US subscription build.

It is set in discovery, and the number of states and integrations matters most.

A single plan sold by card is a modest build. Multistate tax configuration, exemption handling, ACH, supplier portal invoicing, privacy request handling and migration of existing customers each add design and testing. Input from your tax adviser on nexus can also affect sequencing. After discovery the scope lists every stage with its date, and we confirm it with you before design begins.

Tell us what the business needs. We will tell you what to build first.

Schedule a free consultation and get a written recommendation, with costs, before you commit to anything.

Get in touch

PROVEN RESULTS

4.7 / 5from 23 Google reviews