WooCommerce development for a US business means building a store that handles the specific operational and legal complexity of the American market. The base WooCommerce plugin handles none of this correctly out of the box. Accurate multi-state sales tax requires a direct TaxJar or Avalara API integration that calculates rates by ZIP code, applies the right economic nexus thresholds per state, and generates the filing reports US sellers need. US carrier shipping — USPS, UPS, FedEx — needs a real-time rate API integration so customers see accurate shipping costs at checkout, not flat-rate approximations. ADA-compliant checkout means WCAG 2.1 Level AA across every step of the purchase flow, not just the homepage — US courts apply ADA to checkout flows specifically, and accessibility overlays do not satisfy the legal standard. I build these integrations directly using official APIs, not plugin stacks that introduce version-conflict risk every time WooCommerce updates.
Built for US eCommerce
US WooCommerce stores have requirements the base plugin doesn't cover. These are the four integrations every US store needs handled correctly from launch.
Multi-state sales tax (TaxJar / Avalara)
Economic nexus in 45+ states following the Wayfair ruling means you collect tax for states you've never had a physical presence in. TaxJar or Avalara integrated via live API calculates the correct rate by ZIP, applies nexus thresholds by state, and generates the filing reports you need at quarter end.
USPS, UPS & FedEx real-time shipping
Live carrier rates at checkout using the USPS, UPS, and FedEx APIs — not flat-rate estimates that erode your margins or inflate customer costs. ShipStation or EasyPost integrated for label generation, tracking updates, and multi-carrier order management.
US payment stack
Stripe (with Apple Pay, Google Pay, Link, and saved cards), Authorize.net, and PayPal — set up correctly for WooCommerce's checkout flow, not installed as competing plugins that conflict. WooCommerce Subscriptions configured for US subscription billing and renewals.
ADA & multi-state privacy compliance
WCAG 2.1 Level AA checkout for ADA compliance — US courts apply this standard to eCommerce flows. CCPA Do Not Sell/Share consent for California buyers, with multi-state privacy opt-out infrastructure for TDPSA (Texas), OCPA (Oregon), CPA (Colorado), and others.
Who it's for
What I build & fix
How a US WooCommerce build works
Scope & fixed quote
We map your products, tax jurisdictions, shipping carriers, payment methods, and integration stack. You get a fixed USD quote covering everything before work starts — no scope creep.
Tax & shipping configuration
TaxJar or Avalara integrated against the live API, economic nexus thresholds set per state, USPS/UPS/FedEx real-time rates pulling at checkout. Both tested with actual address lookups before anything else is built.
Build & integrate on staging
Payment gateways, ADA-compliant checkout, QuickBooks or ShipStation sync, subscriptions — built on a staging store so nothing touches live sales. Every integration tested end-to-end before launch.
Test across states & launch
Real test orders processed through every payment method, shipping zone, and state tax scenario. ADA audit on the full purchase flow. Clean go-live with documentation for your team.
Common questions
I integrate TaxJar or Avalara directly against their live API — not the WooCommerce tax table import. This means rates are calculated in real time at checkout by ZIP code and state, economic nexus thresholds are applied correctly (so a California buyer from a Colorado-nexus store pays the right CA rate), and the integration generates the filing-ready tax reports US sellers need. The 2018 South Dakota v. Wayfair ruling created economic nexus obligations in 45+ states — any US store selling across state lines needs this handled correctly from the start.
Stripe (card processing, Apple Pay, Google Pay, saved cards, Link), Authorize.net (enterprise and card-present setups), Square (in-person and online), PayPal and Pay Later, Shop Pay for Shopify-migrated brands, and WooCommerce Subscriptions-compatible gateways for recurring billing. Apple Pay and Google Pay are configured using the Payment Request API — not the add-on plugin installs, which are slower and have compatibility issues with multi-step checkouts.
Yes. Shopify-to-WooCommerce migration covers products, customers, and order history, plus 301 redirects from every Shopify URL (including /products/ and /collections/ paths) to the corresponding WooCommerce URLs. The redirect structure is what protects your US Google rankings — Shopify uses different URL patterns from WooCommerce, and without correct 301s, your product pages effectively restart from zero with Google. I also port your meta titles and descriptions and verify crawl coverage with Google Search Console before and after launch.
US courts apply the Americans with Disabilities Act to eCommerce checkout flows — not just static website pages. WCAG 2.1 Level AA is the standard courts use in ADA litigation, and it covers the full purchase flow: accessible form labels, keyboard-navigable checkout steps, error identification that screen readers can announce, sufficient colour contrast on CTAs, and accessible order confirmation pages. I build the checkout to this standard across every step. Accessibility overlays (injected JS tools that claim to auto-fix accessibility) are not sufficient — courts in the 9th and 11th Circuits have found them inadequate.