Tax compliance
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How Kintsugi and TaxJar compare on price, filing, country coverage, e-invoicing and integrations, built from each vendor’s own pages. Pick any two tools to compare them.
Showing Kintsugi compared with TaxJar.
Facts checked on against each vendor’s public pages.
Pay-per-filing sales tax
Kintsugi monitors nexus for free and, on its Starter plan, charges per registration or filing in the US and Canada. Custom monthly plans add EU, UK and other VAT and GST, real-time calculation and the API.
Choose Kintsugi if you’re one of these:
US sales tax tool
TaxJar calculates US sales tax, tracks nexus, builds state reports and files returns through AutoFile, priced by monthly order volume. It covers the US only; Stripe points businesses that need VAT or GST to Stripe Tax.
Choose TaxJar if you’re one of these:
Kintsugi is free to start and charges per filing (Free monitoring; Starter is $75 per registration or filing). Kintsugi charges for each registration and return, so the bill grows with every state and filing. TaxJar starts at $39 a month (Starter: up to 200 orders a month, two filings a year). That price covers every state and country you sell into. Having one US state’s returns filed costs $75 per filing with Kintsugi. Filing is optional with TaxJar: one US state filed for you costs $50 per filing.
Every row comes from the vendor’s own pricing page, help centre or docs. “Not stated” means the vendor doesn’t say publicly, not that the feature is missing.
| Criterion | Kintsugi | TaxJar |
|---|---|---|
| Overview | ||
| Type of tool | Pay-per-filing sales taxFree nexus monitoring, then pay per filing | US sales tax toolUS sales tax reporting and filing, owned by Stripe |
| Built for | ||
| Countries covered | 100+ countriesMonitoring on every plan; filing on custom plans | US only |
| Head office | United States | United States |
| Founded | 2022Independent, venture-backed (Vertex is an investor) | 2013Owned by Stripe since 2021 |
| Pricing | ||
| Starting price | $0 a monthFree monitoring; Starter is $75 per registration or filing | $39 a monthStarter: up to 200 orders a month, two filings a year |
| Pricing model | Fee per filing | Monthly tiers by order volume |
| One price covers every state and country | NoPriced per filing | YesPriced by order volume; filings extra |
| Free plan | Yes | No |
| Free trial | Free plan instead | Yes |
| Month to month | Yes | Yes |
| Prices published | Partial | Yes |
| Filing: one US state | $75 per filingStarter plan, no monthly fee | $50 per filingAfter the two filings a year in Starter |
| Filing: one country | Quote onlyCustom plans only | No |
| Registration: one US state | $75 one-offUS and Canada, on Starter | Quote only |
| Registration: one country | Custom plans only | No |
| Tax coverage | ||
| US sales tax | Yes | YesCalculation, nexus, reports and AutoFile |
| EU VAT | Yes*Custom plans | No |
| EU One Stop Shop (OSS) | Yes*Custom plans | No |
| EU Import One Stop Shop (IOSS) | Not stated | No |
| UK VAT | Yes*Custom plans | No |
| Canada GST/HST | YesGST/HST, PST and QST | No |
| Australia and New Zealand GST | Yes*Custom plans | No |
| Rest of the world | Yes*Custom plans | No |
| Compliance features | ||
| Nexus and threshold monitoring | YesFree plan | Yes |
| Real-time tax calculation | Yes*Scale plan and up | YesAPI on the Professional plan |
| Tax registration | YesPaid per registration on Starter | Yes*State registrations, paid per state |
| Return filing and payment | YesPaid per filing on Starter | Yes*AutoFile, paid per filing |
| Invoices and credit notes | Not stated | No |
| E-invoicing | Not stated | No |
| VAT number validation | Yes | No |
| Exemption certificates | Yes | PartialExempt customers on some carts |
| Marketplace facilitator sales | Not stated | YesMarketplace-collected sales flagged |
| Developers and platforms | ||
| Public API | Yes*Premium plan | Yes*Professional plan |
| MCP server for AI assistants | YesMCP server | Not stated |
| White-label for platforms | Not stated | Not stated |
| Integrations | ||
| Shopify | Yes | Yes |
| WooCommerce | Yes | YesProfessional plan |
| BigCommerce | Yes | Yes |
| Adobe Commerce (Magento) | Not stated | YesMagento 2 |
| Amazon | Yes | Yes |
| Etsy | Not stated | Yes |
| Stripe | Yes | Not stated |
| PayPal | Not stated | Yes |
| Chargebee | Yes | Not stated |
| QuickBooks | Yes | Yes |
| Xero | Not stated | Not stated |
| NetSuite | Yes | Partial |
| Integration library | Integrations included at no extra cost | 30+ sales channel imports |
| Setup and support | ||
| Setup | Guided onboardingFree onboarding | Self-serveConnect your channels yourself |
| Support channels | email, chat and phoneAlso Slack | email, phone and account managerPhone and a success manager on Professional |
Yes*: offered as an add-on or on a higher plan; the note under it says how. Via partners: done by a third party. Partial: limited, see the note. Not stated: the vendor doesn’t say publicly.
Answers built from the same facts as the table above.
Kintsugi is free to start and charges per filing (Free monitoring; Starter is $75 per registration or filing). Kintsugi charges for each registration and return, so the bill grows with every state and filing. TaxJar starts at $39 a month (Starter: up to 200 orders a month, two filings a year). That price covers every state and country you sell into. Having one US state’s returns filed costs $75 per filing with Kintsugi. Filing is optional with TaxJar: one US state filed for you costs $50 per filing.
Kintsugi offers return filing (Paid per filing on Starter). TaxJar offers return filing as an add-on (AutoFile, paid per filing). Kintsugi offers tax registration (Paid per registration on Starter). TaxJar offers tax registration as an add-on (State registrations, paid per state).
Kintsugi calculates tax in 100+ countries. TaxJar covers US sales tax only. Kintsugi offers EU VAT as an add-on (Custom plans). TaxJar doesn’t offer EU VAT.
Kintsugi doesn’t say publicly whether it offers e-invoicing. TaxJar doesn’t offer e-invoicing.
Both connect to Shopify, WooCommerce, BigCommerce, Amazon and QuickBooks. Only Kintsugi lists Stripe, Chargebee and NetSuite. Only TaxJar lists Adobe Commerce (Magento), Etsy and PayPal.
Kintsugi suits small US sellers filing a few returns a year and Shopify or Stripe merchants who want to start with free monitoring. TaxJar suits US-only online sellers with modest order volumes and marketplace sellers who need state reports.
Every fact comes from the vendor’s own pages, checked November 6, 2026. Where a vendor doesn’t say, we write “Not stated”. GoodVat publishes this comparison and is one of the tools in it. Spotted an error? Email hello@goodvat.com.
Independently reviewed and signed off by accountants in 4 jurisdictions on November 6, 2026, to keep it objective.
GoodVat registers you, calculates tax at checkout, sends invoices and files your returns, with filing prices published per US state and per country. Tell us where you sell and we’ll map what you need.
