# How Keeper uncovered write-offs hiding in Amazon orders | Knot > See how Keeper used Knot's TransactionLink to show every item inside users' Amazon orders. Users who link Amazon find $465 more in write-offs. Published: 2026-11-09 A bank statement shows one Amazon charge. TransactionLink shows every item inside it. - **$465** More in write-offs for Amazon shoppers who link their account - **1 in 4** New paying users link Amazon - **78%** Link completion, on par with Keeper’s top banks - **2 weeks** Of development to go live in production “It’s been going really well and far exceeds the expectations I had for this feature.” — Maddy Jeffery, Principal Product Manager at Keeper ## About the company Keeper is an app that helps self-employed professionals and solo business owners identify and maximize tax write-offs. - Industry: Fintech, Tax software - Headquarters: San Francisco, CA - Website: https://www.keepertax.com/ ### The missing piece in every Amazon order Keeper serves self-employed professionals and solo business owners. Write-offs are a large source of tax savings, but it can be tedious to separate business from personal spending when both are on the same card or account. Keeper connects to accounts and marks likely write-offs automatically, so users have fewer expenses to review. Amazon purchases get marked as write-offs more often than purchases from any other merchant. They’re also among the hardest to sort. An Etsy seller might order shipping boxes for their shop and a phone case for themselves in the same checkout. Their bank statement shows a single charge from Amazon, with nothing to indicate which part is a write-off. ### Why Keeper chose TransactionLink Amazon is where Keeper’s automation hit a wall. To see what was actually in an order, users had to leave Keeper, log in to Amazon, dig through their order history to find the right purchase, then split it out by hand. All that back-and-forth also led to mistakes: a user might log their business items as a separate expense, then mark the whole Amazon order as a write-off too, counting the same purchase twice. Keeper had tried to get item-level Amazon data before, but never found a source it could rely on. TransactionLink delivered the detail Keeper needed, every Amazon order broken out item by item, reliably enough to count on at tax time. Now those items show up right inside Keeper, next to the rest of a user’s spending, so users can sort business from personal in one place without ever opening Amazon. Keeper got this into users’ hands fast. Within about two weeks of starting to build, the team had it running in production. Shortly after, every user could link their Amazon account and see each order broken out item by item, right in the app. “The smoothest 3rd party integration I’ve implemented in my experience as a PM.” ### Results so far, and what’s next Adoption has beaten Keeper’s own expectations. Since launching the feature, 25% of new paying users have linked their Amazon account. Of users who start linking Amazon, 78% finish, on par with the most popular banks Keeper users connect. So far, among users with Amazon purchases, those who link Amazon find $465 more in write-offs than those who don’t. For many users, those are write-offs they would have missed entirely. As one user put it: “The Amazon thing is huge because last year I expensed zero Amazon.” Next, Keeper plans to add Amazon to onboarding, so new users can link it right alongside their bank accounts. ### About Keeper San Francisco-based startup Keeper is an app that helps self-employed professionals and solo business owners identify and maximize tax write-offs. The platform automatically connects to a user’s financial accounts to monitor their purchases and identify possible write-offs with the help of AI. Most Keeper users uncover $1,249 in tax write-offs in their first year. During tax season, users can even file their tax return through Keeper. Visit [www.keepertax.com](https://www.keepertax.com/) to learn more or download the app from the Apple App Store or Google Play Store. ### About Knot Knot is the leading merchant connectivity platform, simplifying how consumers, merchants, and financial institutions interact. CardSwitcher is the foundation of Knot’s product suite, letting users update and manage card-on-file payments across hundreds of merchants. Building on the same connectivity infrastructure, TransactionLink delivers SKU-level transaction data, and SubManager gives users a single place to view and manage their subscriptions. By removing friction at every step, Knot helps financial institutions grow engagement, loyalty, and spend. Visit [knotapi.com](https://www.knotapi.com/) to learn more. --- Canonical URL: https://www.knotapi.com/customer-stories/keeper/ More: [Site map](https://www.knotapi.com/sitemap.xml) · [llms.txt](https://www.knotapi.com/llms.txt) · [Developer docs](https://docs.knotapi.com)