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Kintsugi
Compliance Automation | Monitoring, Filing & Remittance

Automate sales tax in Shopify

Shopify collects tax at checkout. Kintsugi calculates what you owe in every state and country where you sell, tracks nexus, and files and remits your returns.

Free exposure monitoring · Filing from $75 · No per-transaction fees

Rated 4.6/5 on G2 (55 reviews) · 7,000+ customers

Kintsugi product UI showing exposure map, support chat, and integrations
KintsugiShopify logo

Trusted by 7,000+ businesses

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Kintsugi calculates, monitors, and files your Shopify sales tax

  • Calculate

    What you owe, everywhere

    Kintsugi classifies your products and calculates what you owe wherever you sell, straight from your Shopify orders.

  • MonitorFree

    Nexus in every state

    Get alerted the moment your Shopify sales cross a state's economic nexus threshold, before it becomes back tax.

  • File & remit

    Returns filed for you

    Kintsugi registers you where you owe, files every return, and remits on schedule, from $75 per filing or registration.

How Shopify connects to Kintsugi

Kintsugi reads your Shopify orders to calculate what you owe, classify your products, and keep every return filed on time, without touching your checkout.

Kintsugi integrations list with connect buttons and exposure status
  1. Connect & sync

    Install the Kintsugi app from the Shopify App Store. Your orders, products, customers, refunds, POS locations, and shop information sync automatically, and nothing changes at checkout.

  2. Calculate what you owe

    Kintsugi classifies every product for taxability and calculates what you owe in every US state, plus VAT and GST in 100+ countries, from your Shopify orders.

  3. Register, file, and remit

    Kintsugi registers you where you owe, files every return, and remits on schedule, with the reporting you need to stay audit-ready.

What Kintsugi syncs from Shopify

Data synced from Shopify and how Kintsugi uses it
SyncedWhat Kintsugi does with it
OrdersTracked against every state's economic nexus threshold and used to prepare your returns.
ProductsClassified for taxability so exposure and liability are built on the right foundation.
CustomersMatched to the location each sale is taxed in.
RefundsApplied at the transaction level so filings reflect what you actually collected.
POS locations and shop informationKeeps in-person and online sales in one system of record.

Connect Shopify your way

Read-only connection

Shopify keeps collecting sales tax at checkout. Kintsugi reads your Shopify data to calculate what you owe, monitor exposure, register you where you owe, and file and remit your returns.

Who uses Kintsugi with Shopify

  • Selling into new states

    Get told the moment your Shopify sales cross a state's economic nexus threshold, before it becomes back tax.

  • Switching from Avalara or TaxJar

    Connect Shopify without changing how you sell, run both in parallel while you evaluate, and move filing over on your timeline.

  • Selling internationally

    Track VAT and GST exposure across 100+ countries using the same Shopify order data.

How Shopify sales tax works

What Shopify does

Shopify calculates and collects sales tax at checkout. Once your store passes $100,000 in sales, Shopify Tax charges a fee on every order (0.35% on Basic, Grow, and Advanced plans, 0.25% on Plus in the US, up to $0.99 per order), and for stores created on or after May 13, 2026, that $100,000 is a lifetime total that never resets.

Where it stops

Filing is where it stops. Shopify says it doesn't file or remit your taxes unless you use its automated filing, which is closed to new enrollment and excludes imported orders, marketplace sales, and amended returns. Deciding where you owe tax and registering there stays with you.

What Kintsugi adds

Kintsugi works alongside Shopify's checkout: it reads your Shopify orders, calculates what you owe, tracks economic nexus across every US state, and registers, files, and remits returns for you. Monitoring is free, and filing starts at $75 per filing or registration, with no per-state subscription and no per-order fees.

Compare Kintsugi and Avalara for Shopify

Sources: Shopify Tax pricing, Shopify Tax in the US, Shopify automated filing considerations

Why Customers Love Us

  • Jared Stark

    Founder of Incendico Fire Alarm Store

    The setup was incredibly seamless and much faster than I expected, with clear guidance throughout the process. What really stands out is their support since it is easy to get in touch with someone quickly and the team is knowledgeable and actually helpful when you have questions.
  • April Walford

    Operations Manager at JMXi

    They corrected errors in our past returns, enrolled us quickly and efficiently, filed everything on time, and thoroughly researched any questions or concerns we had. Their customer service is excellent.
  • Mo Hartman

    Staff Accountant at Searchspring

    Having the visibility on the dashboard has been extremely helpful and the ease of being able to approve. It is very user-friendly and I can see everything I need in one place.

Shopify sales tax FAQ

Ready to automate Shopify sales tax?