Kintsugi
Sales tax software that finds your exposure, registers you, collects, files and remits everywhere you sell.
By Kintsugi AI · 4.6/5 Value-Position score (estimate)
Positioning guardrails
Best for
- Ecommerce and DTC brands selling across many US states, marketplaces or global storefronts
- SaaS and subscription businesses with nexus risk created by Stripe, Chargebee and similar billing systems
- Finance and accounting teams that want nexus monitoring, registration, filing and remittance in one platform
- Multi-entity or multi-country businesses that need US sales tax plus VAT/GST in one tool
Ideal size: 5–500 people · Ecommerce or SaaS scale-up with multi-state or multi-country sales
Not for
- Businesses selling in a single state with no registration or filing obligations
- Enterprises that need a heavily customized on-premise tax engine
- Teams that want tax determination only and will keep filing in-house
Value metrics scorecard
Time-to-Value
Same day: exposure in minutes, filing in days
~1 days to first production value
Total Cost of Ownership
$1,800/yr
Starts at $0 · Free exposure monitoring; Starter from $75 per filing or registration; Premium is flat-rate with volume discounts. No onboarding, transaction or year-end overage fees.
Implementation Friction
1/5
Engineering + admin effort required
Value-Position score
out of 5 · model estimate
Full cost breakdown
Mandatory implementation fee
None
Seat tiers
No seat-based tiers. Three plans: Free, Starter (per filing/registration) and Premium (flat rate, custom quote).
Add-on costs
- None
Company & support
Who is behind Kintsugi, and how your team gets help once it is live.
Company
- Founded
- Not recorded
- Headquarters
- Not recorded
How you get support
- PhonePlan not stated
- EmailAll plans
- Live chatPaid plans
- Support portal / ticketsNot listed
- Community forumNot listed
- Help centre / docsAll plans
- Dedicated account managerEnterprise only
- In person / on-siteNot listed
- Hours
- 24/7
- Response time
- Same-day human responses on live chat (Starter and Premium); Premium adds SLA-backed support.
Homepage lists live chat, phone, email and Slack as customer contact options; help centre and in-app chat are open to all plans. Premium adds dedicated onboarding and account teams plus SLA-backed premium support.
“Not listed” means the vendor’s public pages don’t mention that channel, not that it is unavailable. Ask about it during evaluation.
Market position
Where Kintsugi sits against its closest alternatives. Pick any two of cost, speed, friction and buyer score, and up to 9 companies to compare.
Quadrant view
Typical annual cost × Time-to-value
The lines cross at the median of the solutions shown, so about half sit on each side of each line. A dashed ring marks an outlier pinned to the edge; hover for its value.
Companies on the chart 6 / 10
- Kintsugi
- Termly
- Taxually
- TaxCloud
- Darrow
- HourTimesheet
Add or change companies
Up to 10 companies including Kintsugi. Listed closest first.
Stack fit signal
Compatibility with standard B2B ecosystems.
No supported MCP path today, so it cannot be driven from an AI client.
AI & MCP readiness
What Kintsugi ships in AI, and what it asks of your ecosystem.
AI features shipped
Kintsugi markets 'Kintsugi Intelligence' for exposure monitoring, product classification and address validation, plus Kin, an in-app assistant grounded in the customer's transaction data and its tax content. The vendor says an enterprise tax engine also used by Vertex runs inside its AI-driven workflows.
Your data & models
- Trains on your data
- Not recorded — ask the vendor
- Runs on
- OpenAI, Amazon
- AI pricing
- Included in the plan
In your ecosystem
- AI connection
- Not supported
- Model key
- Not recorded
- AI usage audit
- Not recorded
Compliance attestations
* IAPP AIGP certifies individuals, not products. It means named staff hold the credential — not that the platform does.
Bottom line
Kintsugi is AI-assisted sales tax software for ecommerce, SaaS and finance teams. It syncs billing, payments, ERP and HR systems to monitor economic and physical nexus across every US state and 100+ countries, then registers, calculates, files and remits sales tax, VAT and GST. Exposure monitoring is free; Starter charges from $75 per filing or registration; Premium adds multi-country coverage, ERP tax engines, API access and a penalty guarantee. 60+ no-code integrations, 7,000+ customers, and 24/7 live chat with dedicated onboarding on Premium.
Frequently asked questions
How is Kintsugi priced, and what does the free plan actually include?
The Free plan is $0 with no credit card: global nexus monitoring across the US and 100+ countries, historical liability auditing, threshold alerts, AI-assisted product categorization, address validation, Kin (the in-app assistant), CSV imports and no-code integrations. Registering, filing and remitting start on Starter, priced per filing or registration from $75 each, with onboarding assistance included. Premium is flat-rate with volume discounts for multi-entity and multi-country needs. There are no onboarding or transaction fees and no long-term contract lock-in.
How long does implementation take, and are there onboarding fees?
No. Kintsugi states there are no onboarding fees and no transaction fees. Setup is no-code: connecting a data source takes about 5 minutes, adding physical presence about 2 minutes, and entering organization details about 7 minutes, so exposure is visible in minutes. Starter includes onboarding assistance; Premium adds dedicated onboarding and account teams. Customers repeatedly cite fast onboarding and easier migrations than previous providers.
Will Kintsugi integrate with our ERP, billing and payroll stack?
Kintsugi advertises 60+ no-code integrations across ecommerce, billing, payroll and ERP, including Shopify, Stripe, Chargebee, BigCommerce, QuickBooks, NetSuite and Microsoft Dynamics 365, all included at no extra cost. Where the platform allows it, tax is calculated at checkout or on the invoice; elsewhere it is calculated from synced data. Premium adds API, SDK and SSO access for custom environments, and HR/payroll connections track remote hires that create physical nexus.
What AI does Kintsugi actually use?
AI is used for product classification (including mixed carts), address validation down to the local district, and exposure monitoring that tracks thresholds and alerts before back taxes build up. Kin, an in-app assistant grounded in the customer's transaction data and Kintsugi's tax knowledge, summarizes filings, explains rates and pulls transactions. The privacy policy names OpenAI and Amazon Bedrock as AI service providers. Kin and Kintsugi Intelligence are included on every plan, including Free.
Can Kintsugi clean up past-due or back taxes?
Yes. Premium adds back filing and Voluntary Disclosure Agreements (VDAs) to correct prior exposure, plus overpayment recovery. Starter covers registrations, filings, remittances, refunds and amendments, and filings can be run on autopilot on Premium. Premium also includes the Kintsugi Guarantee: if a Kintsugi calculation or filing error leads to penalties or interest, the vendor pays them. Customers describe past returns being corrected and unfiled periods being caught up.
How does support work, and is it gated by plan?
A help centre and in-app chat are available on all plans, and the homepage lists live chat, phone, email and Slack as ways to reach the team. Paid plans add 24/7 live chat with same-day human responses, and Premium adds a dedicated onboarding manager, a dedicated account team and SLA-backed premium support. Kintsugi states support is not gated behind an additional support package tier.