TaxJar
👤 Mark Faggiano (Second-time tax founder: sold FileLater (tax extensions) in 2010, so he saw the sales-tax mess coming and built early.)🌐 site𝕏
A single Supreme Court ruling turned a nice-to-have tax tool into a legal must-have for every US online seller.
Will it work? · our read
Timed the law. Faggiano bet on a boring, fragmented tax problem in 2013 and stayed profitable, so when Wayfair made it mandatory in 2018 he owned the market and sold to Stripe on his terms.
01How the money moves
Online seller connects Shopify, Amazon or Stripe
→
TaxJar tracks nexus, calculates and auto-files tax
→
Seller pays a monthly SaaS fee ($19-99+/mo)
02The numbers
about $20M
ARR est. (2018-19)
est
$60M
Insight growth round '19
VentureBeat
$850-900M
reported Stripe exit
Axios
Revenue never officially disclosed; figures are press/founder-reported, not filings.
Bootstrapped to about $20M ARR, then a reported $850-900M sale to Stripe (2021).
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(demo: preview the full teardown)Sourcesupdated · daily
Stripe newsroom -- TaxJar acquisition (2021)Axios -- inside the reported $850-900M Stripe/TaxJar dealVentureBeat -- TaxJar's $60M Insight roundLatka -- TaxJar metrics (third-party est.)TaxJar -- About (customers, founding)
Revenue was never officially disclosed. The about-$20M ARR figure is founder/press-reported (MacLeod podcast, SaaStr context) around the 2019 Insight round, not a filing -- so EST, verified false. The $850-900M exit is Axios-reported; Stripe never disclosed terms. Latka lists a stale $2.8M ARR (2021) that contradicts a $175M valuation and $60M raise, so I discount it. Wayfair's impact, the $60M/$175M round, the "never raise again" quote, and marketplace-facilitator erosion are all documented. We never score you.