Read-only connection
Kintsugi reads your Stripe data to calculate what you owe and monitor exposure across Payments and Billing, then registers, files, and remits.
Kintsugi calculates sales tax on your Stripe payments, subscriptions, and invoices, tracks nexus in every state, and files your returns. No transaction fees.
Free exposure monitoring · Filing from US$75 (approx. £57) · No per-transaction fees
Rated 4.6/5 on G2 (55 reviews) · 7,000+ customers
Trusted by 7,000+ businesses
Kintsugi's tax engine calculates sales tax on Stripe invoices and subscription charges in real time, as they're created.
Every Stripe charge and renewal counts toward each state's economic nexus threshold, with an alert the moment you cross.
Kintsugi registers you where you owe, files every return, and remits on schedule, from $75 per filing or registration.
Kintsugi uses your Stripe data, from one-time payments to subscriptions, to calculate what you owe, track nexus, and keep every return filed on time.

Connect Stripe once and Kintsugi syncs your customers, products, subscriptions, invoices, charges, and refunds from Stripe Payments and Stripe Billing, so all of your Stripe revenue counts.
Kintsugi calculates what you owe in every US state, plus VAT and GST in 100+ countries. Its tax engine taxes invoices and subscription charges in real time as they're created.
Kintsugi registers you where you owe, files every return, and remits on schedule, with the reporting you need to stay audit-ready.
Stripe Tax charges per transaction and puts filing in a separate subscription with a 1-year contract. Kintsugi charges no transaction fees.
| Feature | Kintsugi | Stripe Tax |
|---|---|---|
| Fee model | KintsugiNo per-transaction fees. Monitoring is free; filing starts at $75 per filing or registration | Stripe TaxPer transaction on Tax Basic: 0.5% through no-code integrations, or 50¢ each through the API |
| What's included | KintsugiCalculation, nexus monitoring, registration, filing, and remittance in one platform, with real-time calculation on Stripe invoices | Stripe TaxCalculation on Tax Basic; filing needs the separate Tax Complete subscription, $90 to $1,500 a month |
| Contract | KintsugiNo long-term contract | Stripe Tax1-year contract for Tax Complete |
| Where to register | KintsugiKintsugi tells you where you have nexus and registers you there | Stripe TaxStripe leaves it to you to confirm where registration is required |
| Coverage | KintsugiStripe plus every other platform you sell through, in one system of record | Stripe TaxStripe-processed payments and imported transactions |
Example: at 2,000 API transactions a month where you're registered, Tax Basic's 50¢ fee comes to $1,000 a month ($12,000 a year), and it grows with every sale. Kintsugi charges no transaction fees, so a busier month doesn't add fees.
Wondering who pays if a calculation or filing goes wrong? See how the Kintsugi Guarantee works
See the full Kintsugi vs Stripe Tax comparison
Stripe Tax details as of September 2026, per Stripe's published pricing and documentation. Sources: Stripe Tax pricing, Stripe filing, Stripe tax monitoring
| Synced | What Kintsugi does with it |
|---|---|
| Customers | Synced to determine where each sale is taxed. |
| Products | Classified for taxability by jurisdiction. |
| Subscriptions and invoices | Synced for nexus tracking and to calculate what you owe across every jurisdiction. |
| Charges | Counted toward nexus thresholds alongside your billing revenue. |
| Refunds | Adjust liability at the transaction level. |
Kintsugi reads your Stripe data to calculate what you owe and monitor exposure across Payments and Billing, then registers, files, and remits.
Kintsugi's tax engine calculates sales tax on Stripe invoices and subscription charges as they are created.
Drop per-transaction fees. Run Kintsugi beside Stripe Tax while you evaluate, then switch over on your timeline.
Renewals sync automatically so nexus exposure stays current across every state you bill into.
Combine Stripe data with every other platform you sell on in one system of record.
Stripe Tax calculates tax on Stripe payments. Tax Basic costs 0.5% per transaction where you're registered for no-code integrations (Billing, Checkout, Invoicing, Payment Links), or 50¢ per transaction through the API.
Stripe's built-in filing needs the Tax Complete subscription, from $90 to $1,500 a month on a 1-year contract, with set limits on transactions, registrations, and filings. US returns are filed through TaxJar, and international returns through partners. Stripe's nexus monitoring covers Stripe-processed payments and imported transactions, and Stripe leaves it to you to confirm where registration is required.
If you're comparing Stripe Tax alternatives, Kintsugi charges no transaction fees and needs no long-term contract. It reads the same Stripe data, combines it with every other platform you sell through, and its tax engine calculates tax on Stripe invoices in real time. Monitoring is free, and filing starts at $75 per filing or registration, with no per-state subscription.
Sources: Stripe Tax pricing, Stripe filing, Stripe tax monitoring
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.
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