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Kintsugi
Compliance Automation | Real-Time Tax Engine

WooCommerce Sales Tax Automation

Kintsugi calculates sales tax at checkout on your WooCommerce store in real time, tracks nexus in every state, 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
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Trusted by 7,000+ businesses

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Kintsugi calculates, monitors, and files your WooCommerce sales tax

  • Calculate

    Tax at every WooCommerce checkout

    Kintsugi's plugin calculates sales tax at checkout in real time, so what customers pay matches what Kintsugi files.

  • MonitorFree

    Nexus in every state

    Get alerted the moment your WooCommerce 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 WooCommerce connects to Kintsugi

Kintsugi's plugin fits into your WordPress stack, no developer required. It calculates tax at checkout and uses the same data to monitor exposure and file every return.

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

    Create a WooCommerce REST API key and connect it in Kintsugi. Customers, products, orders, and refunds sync automatically, with exposure tracked across every US state and 100+ countries.

  2. Calculate in real time

    Install the Kintsugi plugin, add your Kintsugi API key, and turn on tax calculation. The tax your customer sees at checkout matches what Kintsugi reports and files.

  3. Register, file, and remit

    Kintsugi combines WooCommerce with every other channel you sell on, then registers you where you owe, files every return, and remits on schedule.

What Kintsugi syncs from WooCommerce

Data synced from WooCommerce and how Kintsugi uses it
SyncedWhat Kintsugi does with it
Orders and sales historyTracked against every state's economic nexus threshold and used to prepare your returns.
ProductsClassified for taxability so checkout tax and your returns rest on the right treatment.
CustomersMatched to the location each sale is taxed in.
RefundsApplied at the transaction level so filings reflect what you actually collected.

Connect WooCommerce your way

Read-only connection

A WooCommerce REST API key lets Kintsugi read your store data to calculate what you owe, monitor exposure, register you where you owe, and file and remit.

Tax engine

The Kintsugi plugin calculates sales tax at checkout on your WooCommerce store in real time, from the same data Kintsugi files with.

Who uses Kintsugi with WooCommerce

  • WooCommerce plus other channels

    Kintsugi combines WooCommerce with every platform you sell through, so nexus and filings reflect your total sales.

  • Outgrowing manual rate tables

    Stop entering or importing tax rates by hand. Kintsugi calculates tax at checkout and files the returns too.

  • Switching from Avalara or TaxJar

    Add Kintsugi alongside your current tool, compare results, and switch on your timeline.

  • Selling internationally

    Track VAT and GST exposure across 100+ countries from the same WooCommerce data.

How WooCommerce sales tax works

What WooCommerce does

Core WooCommerce applies the tax rates you enter by hand or import from a CSV. The WooCommerce Tax extension can calculate sales tax at checkout from your store and customer addresses.

Where it stops

WooCommerce's documentation is clear about the limit: WooCommerce Tax does not file returns, remit tax, or determine where your business has a tax obligation.

What Kintsugi adds

Kintsugi covers the whole job. Its plugin calculates sales tax at checkout in real time, and the same data drives nexus monitoring, registration, filing, and remittance.

See Kintsugi's WooCommerce sales tax plugin

Sources: WooCommerce Tax, Setting up taxes in WooCommerce

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.

WooCommerce sales tax FAQ

Ready to automate WooCommerce sales tax?