Step-by-step help for Kintsugi sales tax software — connect integrations, track nexus, register, and file returns. Search guides, FAQs, and troubleshooting.

Kintsugi Help Center | Sales Tax Software Support & Guides

Your First Steps to Stress-Free Tax Filing

Getting Started

State Registration & Tax Filing to Ensure Business Compliance

Registrations & Filings

Your guide to integrating third-party services with step-by-step instructions 

Integrations

Manage your Kintsugi subscription, billing details, payment methods, invoices, and learn about pricing plans, refunds, and account changes.

Subscription & Billing

Frequently Asked Questions

Explore our collection of helpful guides, contact information, and tools to assist you with tax-related questions and processes.

Resources

Troubleshooting

Collection of Kintsugi's product & marketing contents

Blogs

API Access & Management

Learn how to create and delete API keys in Kintsugi. See what an API key is, why you need one, how to set an expiration, and how to copy and manage keys safely.

How to Create and Delete API Keys

Learn how to unlock your Kintsugi API key. See requirements for Premium and free plans, completing onboarding, and using a sandbox test org to try the API.

Unlocking Your API Key

Explore Kintsugi API access for test (sandbox) and live orgs: create test orgs and keys for free, while live API keys require a premium subscription.