Connect and monitor globally
Sync your billing, payments, HR, and ERP in a few clicks. Cross a threshold in states and countries where you didn’t know you owed.
For ecommerce, SaaS, and finance teams
Sales tax softwarethat collects, files, andkeeps you compliant
Kintsugi finds the exposure you didn’t know you had, registers you, and files everywhere you sell with real people to support you whenever needed.
SOC 2 Type II
Flat-rate pricing, no lock-ins
100+ CountriesNo credit card required · See your exposure in minutes
Trusted by 7,000+ businesses
Sales tax gets painful fast
Most companies cross a nexus threshold months before anyone notices. Kintsugi alerts you immediately and does the heavy lifting on registering, collecting, and filing.
Kintsugi is filing on your behalf
Calculatingfilingremittingin real time
JurisdictionDueStatusLiability
CaliforniaJun 30Paid-$8,420.10
New YorkJul 20Paid-$3,118.55
IllinoisJul 20Filed$2,560.00
VirginiaJul 22Past due$1,940.30
WashingtonAug 25Past due$1,999.95
Auto-remit on· ACH from operating account
EnabledCheck your exposure if:
You raised, or you’re changing systemsA funding round, ERP migration, or new incorporation each add to your exposure.
You added a channel or a warehouseA new marketplace, a Shopify Plus migration, or one holiday surge can create nexus overnight.
You hired someone remoteOffices, remote employees, warehouses, even an event booth can trigger physical nexus.
Sales tax compliance
you can count on
Register and collect correctly
We register you wherever you need to be and calculate the right tax at checkout or on the invoice, using rules specific to your product.
File, remit, stay audit‑ready
Returns prepared and filed on every cadence, tax remitted once confirmed, exemption certificates managed, every decision documented.
Where AI actually helps with sales tax
Every platform says AI. Here is where ours is used to help you.
Product classification
Every product is classified, including mixed carts, with each item taxed as the state requires so you can quickly review and approve.
Address validation
The exact rate at every address, resolved down to the local district, so you are not over- or under-collecting.
Exposure monitoring
Economic thresholds tracked across every US state and 100+ countries, with an alert before a threshold becomes back-taxes owed.
Get to the answer faster
Ask Kin, your AI assistant, to summarize a filing, explain a tax rate, or pull a transaction. It’s grounded in your transaction data and our tax knowledge.
Enterprise accuracy, SMB pricing
For NetSuite customers, Vertex’s enterprise tax engine, the same technology trusted by companies like Costco, runs inside Kintsugi’s AI-driven workflows at a fraction of the cost.
Sales tax, VAT, and GST
managed in the same platform
Exposure Map
United States
4
Exposed2
Approaching1
Registering1
Registered37
Not exposedYou get one clean view of where you stand, while Kintsugi handles the thousands of jurisdictions and their rules and rate changes.
Exposure mapped across every US state and 100+ countries, color-coded: exposed, approaching, registered.
Get current and stay that way with back filing, Voluntary Disclosure Agreements (VDAs), and recover overpayments.
“Responsive Customer Support
That Brings Peace of Mind”
- Fast onboarding
- Easy migrations
- Same-day responses, 24/7 coverage
- Direct access to tax experts
- Full issue resolution, no endless loops
Creating Customer Account in Kintsugi
Connect a Data Source
Connect your sales data via an integration or upload a file to calculate economic nexus and track your tax liabilities.
5 minAdd Physical Presence
Select where your business has a physical presence (offices, warehouses, employees) to determine your tax obligations.
2 minAdd Organization Details
Enter your business information needed for tax registrations and compliance.
7 minCreate account
Submit
April Walford
Operations Manager at JMXi
“Kintsugi’s approach is more personalized. I enjoy the customer service, the ability to reach a live person, and not having to do everything via email. They’re responsive and educational. I feel known, cared for, and informed.”
Angela Jennings
Director Finance at InspiredResults
“Kintsugi's customer service is excellent. The onboarding was much easier than with other companies that do the same thing. Now that we're active, I've had very quick response times from the team as well.”
Live chatPhoneEmailSlackKin, AI Assistant
Not all sales tax automation platforms are equal
Predictable pricing
Month-to-month, no per-transaction fees, implementation cost, or year-end overage. Exposure monitoring and exemption management included.
Find and fix back taxes
We catch previous mistakes and fix affordably with back filing, Voluntary Disclosure Agreements (VDAs), and recover overpayments.
Automated filings
Deadlines tracked by jurisdiction, returns filed on every cadence, copies downloadable anytime.
Exceptional service
Highly rated and not gated behind an additional support package tier.
Audit-ready
Every transaction tagged with the rule it followed. Export a defensible report in two clicks.
Global compliance
Sales tax, VAT, and GST across 100+ countries and 13,000+ local taxing authorities. Rate engine updated daily from primary sources.
Happy Customers
who stopped worrying about sales tax
4.7
4.84.6
#1SaaS Product of the month&C
Ben Perkins
Founder & CEO at &Collar
Ecommerce, Retail
With Kintsugi, we stopped getting non-compliant emails from different states and districts. We matter enough to be able to know the team and feel confident that they'll take care of us.
Ramesh Kavuru
Owner of Kavuru Group Holdings LLC
Ecommerce brands
Before Kintsugi, we had many violations from different states, counties, and cities. It was really messy and Kintsugi cleaned up that mess and patiently implemented the integration into our system.
April Walford
Operations Manager at JMXi
SaaS, Custom Software & IT Services
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.
Yuki Kinoshita
Co-founder of Plufl
Ecommerce, Furniture
I'm glad I made the switch to Kintsugi. Not only am I saving money right now, but I'm also getting better service in terms of accuracy.
E
Carson Snyder
Manager, Accounting at EngagedMD
SaaS, Healthcare
Kintsugi is much more involved than our previous solutions, and seems to take a lot more initiative than other platforms towards actually automating end to end compliance. It’s an easier view of our compliance across the US.
Angela Jennings
Director Finance at InspiredResults
B2B, Brand Management
Kintsugi's customer service is excellent. The onboarding was much easier than with other companies that do the same thing, and there was support throughout the onboarding process. Now that we're active, I've had very quick response times from the team as well.
KL
Carolyn Zeigler
Financial Controller at Karma and Luck
Ecommerce, Retail
We worked with two other companies before Kintsugi, and we also tried managing this ourselves. None of those options worked as well. Now our busy accounting department has more time for other necessary, important tasks, and it’s been very cost-effective.
I
Jared Stark
Owner of Incendico Fire Alarm Store
Ecommerce, Safety Equipment
Nobody likes paying or calculating taxes. But Kintsugi is a ‘set-and-forget’ platform. You can trust that it’s working in the background, and then focus on growing your business.
G
James Brunone
Vice President Hard Goods & Commercial Strategy at Grint LLC
SaaS & Ecommerce, Sports
I love the hands-off, white glove experience of Kintsugi. With Kintsugi, adding the dimension of e-commerce hard-goods sales tax to our SaaS services and combining multiple platforms has been operating seamlessly.
JF
Ahmed Ali
Founder and CEO of Juba Farms
Ecommerce, Functional Food
Kintsugi is solving multi-state sales tax for us, which is a real headache for a direct-to-consumer brand and every one of them has its own rules for when you owe tax. This means I can put my time back into actually growing the business instead of chasing tax deadlines.
Connect your
systems in clicks
Stores, marketplaces, billing, payments, HR, and ERP synced in minutes, every integration included at no extra cost. Or customize your own using our API.
View all integrationsConnect every revenue source
KintsugiStores, marketplaces, billing & ERP — streaming into one source of truth
Customer stories & results
Discover how organizations are achieving success with Kintsugi
Free exposure assessment, no commitment.
See what sales tax is really costing you
30-minute walkthrough · No credit card required · See your own data live