Shopify development for US brands

Custom Shopify and Shopify Plus builds for American merchants, with multi-state tax, warehouse integrations and accessible, fast storefronts handled by one remote team.

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Shopify Development for USA brands

Building a Shopify store for the American market is mostly an integration job. The theme matters, but the harder work sits behind it: tax codes that hold up across dozens of states, inventory that syncs with a warehouse or Amazon, wholesale pricing for retail buyers, and front-end code that loads quickly on a phone over patchy cellular data. US merchants also tend to run several apps at once, so the build has to stay lean as the stack grows.

BOOST STAR Experts provides Shopify developers for US brands from our remote team in India. We write custom Liquid themes and Online Store 2.0 sections, build Shopify Plus checkouts with Checkout Extensibility, connect ERPs and fulfilment partners, and develop private apps when an off-the-shelf one will not do. Developers work through your night, so a change you request at the end of the day is usually on staging when you return.

  • Custom Online Store 2.0 theme
  • Shopify Tax configuration
  • ERP and 3PL integration
  • WCAG 2.1 AA accessibility pass
  • Shopify Plus B2B setup
  • Custom Shopify app development

What shopify development in the USA needs

Tax codes and multi-state setup

US sales tax depends on what you sell and where it goes, so the store needs accurate product tax codes from day one. We map your catalogue to Shopify Tax categories, handle tax-exempt wholesale customers, and make sure order data exports cleanly to Avalara, TaxJar or whatever filing service your accountant prefers.

Accessible, ADA-ready front ends

Accessibility lawsuits against online retailers are frequent in the US, and many cite WCAG 2.1 AA as the benchmark. Our developers build with semantic markup, keyboard navigation, visible focus states, labelled forms and sufficient colour contrast, then test with screen readers. An overlay widget is no substitute for code that works.

ERP, 3PL and marketplace connections

Growing US brands often run NetSuite, Acumatica or a similar ERP and ship through a third-party warehouse such as ShipBob or ShipMonk. We connect these through native apps, middleware or the Shopify Admin API, and sync orders and stock with Amazon, Walmart Marketplace or TikTok Shop so you never sell the same unit twice.

B2B and Shopify Plus checkout

Many American brands sell to retailers as well as consumers. On Shopify Plus we set up B2B company accounts, price lists, net payment terms and quantity rules, and use Checkout Extensibility and Shopify Functions for custom discounts, shipping logic or delivery messages. Older checkout.liquid customisations are rebuilt the supported way.

Payments, delivery and compliance in the USA

  • Shop Pay
  • Apple Pay
  • Google Pay
  • PayPal & Venmo
  • Afterpay
  • Klarna
  • Affirm
  • USPS
  • UPS
  • FedEx
  • DHL eCommerce
  • ShipBob and other 3PLs
  • State sales tax (economic nexus)
  • CCPA / CPRA and state privacy laws
  • ADA website accessibility
  • FTC rules on reviews and endorsements
  • California Prop 65 warnings

How we work

Discovery call

We learn your goals, catalogue, tech stack and market, then agree what success looks like.

Audit & roadmap

A store, SEO and competitor audit turns into a prioritised roadmap with a timeline and fixed quote.

Design & build

UX, design and development in sprints, with a private preview store you review at every step.

Launch

QA across devices, redirects, tracking and a planned go-live with no downtime.

Grow

SEO, CRO and paid campaigns compound results month after month, with clear reporting.

Ongoing support

A dedicated team for fixes, new features and seasonal campaigns when you need them.

Frequently asked questions

Do you build custom Shopify themes or adapt existing ones?

Both. If a premium theme from the Shopify Theme Store covers most of what you need, we extend it with custom sections and keep it upgradeable. If your design or performance targets go beyond that, we build a custom Online Store 2.0 theme from scratch. We recommend one or the other after reviewing your designs and app list.

Can your developers connect our store to NetSuite or another ERP?

Yes. We use a proven connector where one fits, such as Celigo for NetSuite, or build an integration on the Shopify Admin API and webhooks where it does not. Before writing code we agree which system owns products, stock, prices and orders, because most integration problems start with that question left open.

How do US clients review development work from India?

Every change goes to a staging theme or development store first. You get a preview link, a short recorded walkthrough and notes on what was tested. Feedback is logged on a shared board, and we pick it up during our working day, which is your night, so fixes are usually ready the next morning.

How long does a Shopify development project take for a US brand?

A theme customisation with a few integrations typically takes 4 to 8 weeks. A custom Shopify Plus build with an ERP, B2B pricing and checkout extensions usually takes 8 to 14 weeks. We send a dated plan after scoping, and integrations that depend on a third party are flagged early.