Automate sales tax in Amazon FBA

Frequently Asked Questions

• Does Kintsugi calculate sales tax inside Amazon?

  Amazon, as a marketplace facilitator, collects and in many states remits tax on facilitated orders directly. Kintsugi's Amazon integration is read-only, so it doesn't change how Amazon calculates or collects tax at checkout. Instead, Kintsugi uses your FBA order data to monitor your total exposure, including obligations that fall outside marketplace facilitator coverage, and to prepare and file your returns.

• What does "marketplace facilitator" mean for my Amazon sales tax?

  Marketplace facilitator laws require Amazon to collect and remit sales tax on your behalf in most states, on orders it facilitates. That coverage doesn't extend to sales you make outside Amazon, or to physical nexus created by where your FBA inventory sits. Kintsugi tracks both, so your full exposure picture, not just what Amazon's facilitator status covers, stays accurate.

• Does Kintsugi track FBA warehouse locations for physical nexus?

  Yes. Kintsugi accounts for FBA fulfillment center locations when assessing physical presence exposure, in addition to economic nexus from your sales volume.

• Does Kintsugi sync my Amazon returns?

  Not automatically today. Returns require a manual upload; our team can walk you through the process.

• I already use Avalara or TaxJar for my other stores. Can I add Kintsugi just for Amazon?

  Yes. You can run Kintsugi alongside your current sales tax tool to start, so switching your whole stack over isn't something you need to decide on day one. Many Amazon sellers take this approach: evaluate Kintsugi on their Amazon FBA exposure first, then decide if and when to consolidate the rest.

• Can Kintsugi handle sales tax if I sell across multiple states, or on multiple channels?

  Yes. Kintsugi monitors exposure across every state and country you sell into, using your Amazon data alongside every other platform you sell through, so your exposure picture is complete, not just what Amazon facilitates.

• Is my Amazon data secure with Kintsugi?

  Yes. Kintsugi only requests read-only access to your Seller Central data, backed by SOC 2 Type II certification and encryption in transit and at rest. Security documentation is available on request.