Amazon Sales Tax Automation

Amazon sales tax FAQ

• Does Kintsugi calculate sales tax inside Amazon?

  Amazon does, for the orders it facilitates: as the marketplace facilitator, it calculates, collects, and remits that tax, and Kintsugi's read-only integration leaves it untouched. Kintsugi calculates what's still yours, including sales outside Amazon and jurisdictions or products Amazon's collection doesn't cover, then registers, files, and remits it.

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

  Every US state with a sales tax has a marketplace facilitator law, so Amazon collects and remits sales tax on the orders it facilitates. That coverage doesn't reach sales you make outside Amazon, a few local jurisdictions such as Colorado home-rule cities, or the physical nexus created where your FBA inventory sits, and Amazon notes you may still have a reporting obligation for its sales. Kintsugi tracks all of it.

• Does Kintsugi track FBA warehouse locations for physical nexus?

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

• How do I connect Amazon to Kintsugi?

  In Kintsugi, open Data Sources and click Connect on Amazon. Enter your Seller Central region, marketplaces, and Merchant Token, then sign in to Amazon and grant access. Once Amazon shows as Active, your FBA orders and transaction data start syncing and Kintsugi surfaces your exposure.

• 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 US state and 100+ countries, 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.