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Tax automation for short-term rental properties
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Streamline VAT determination, e‑invoicing, and reporting
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Tax management for small business owners
Midsize
Compliance tools for your accounting team
Enterprise
Omnichannel tax management at scale
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Tax risk assessment
Products to estimate where you have tax obligations
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Cloud-based products for a variety of tax types
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Exemption certificates
Tax exemption document management
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State and local governments and agencies
Supply chain and logistics
International traders, shippers, and suppliers
Private equity and venture capital
Buyout, growth equity, venture, and credit investors
Fuel & Energy
Automated tax compliance for fuel and energy industries
Tobacco & Vape
Automated tax compliance for tobacco and vape tax.
See all solutions
Products
CORE PRODUCTS AND SERVICES
Avalara AvaTax
Our flagship tax calculation service
Avalara AvaTax for Accounts Payable
Automated use tax compliance for your purchasing process
Avalara Returns
Returns preparation and filing products
VAT Returns & Reporting
Automate VAT return preparation, filing, and compliance
Avalara E-Invoicing and Live Reporting
Tool
International e-invoicing and reporting compliance
Avalara Exemption Certificate Management
Document management for tax-exempt sales
OVERVIEW
Our platform
The Avalara platform for tax and compliance
Tax software demos
See how Avalara products work
Pricing FAQ
How Avalara determines pricing for your business
Avalara in Cloud Marketplaces
Buy Avalara tax compliance solutions through your preferred cloud marketplace
ADDITIONAL PRODUCTS AND SERVICES
Avalara 1099 & W-9
E-filing with the IRS, states, and recipients
Avalara Sales Tax Risk Assessment
Nexus risk assessment for selling to the U.S.
Avalara Business Licenses
Licensing and registration across the U.S.
Avalara Tax Research
Plain-language answers to tax questions
Item Classification
Simplify taxability categorization with the power of AI
Avalara Cross-Border
Classification, VAT, GST, and customs management
Tariff Code Classification
Automate tariff code classification with AI
Avalara Property Tax
Real and personal property tax compliance
Streamlined Sales Tax Program
25 states cover the costs for qualified sellers
Avalara Capital
Flexible financing for compliance and growth
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Microsoft
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Tools
U.S. sales tax calculator
Address-based sales tax calculator
U.S. sales tax rate tables
Rates updated each month
U.S. sales tax risk assessment
Economic nexus self-assessment
Lodging tax rate lookup
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Address-based lodging tax calculator
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Licensing requirements questionnaire
Featured
Avalara Tax Changes 2026
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Forrester Total Economic Impact™
An independent, commissioned study
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January tax updates
Tool
Stay ahead on indirect tax insights
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Tool
Global VAT, GST, and sales tax requirements
Streamlined Sales Tax program
State-supported sales tax compliance help
U.S. sales tax rates
Interactive map of U.S. sales tax rates
U.S. sales tax nexus thresholds
Nexus guides and triggers by state
Business license guides
State licensing requirements
Lodging tax rates
Address-based calculator for lodging tax rates
Lodging tax guides
State lodging tax compliance guides
Wine shipping tax rates
Direct-to-consumer wine shipping guide
1099 form types
IRS information returns
1099 requirements
Small business owner obligations
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Agentic AI
Solutions
Tax types
Sales and use
Compliance management for state and local taxes
Property
Real and personal property tax management
Consumer use
Self-assessment for buyer-owed taxes
Communications
Tax management for connected devices and services
Occupancy
Tax automation for short-term rental properties
VAT
Streamline VAT determination, e‑invoicing, and reporting
Business sizes
Small
Tax management for small business owners
Midsize
Compliance tools for your accounting team
Enterprise
Omnichannel tax management at scale
Business needs
Tax risk assessment
Products to estimate where you have tax obligations
Tax calculation
Cloud-based products for a variety of tax types
Returns
Filing solutions for all business types
Exemption certificates
Tax exemption document management
E-invoicing
Global e-invoicing and live reporting
Cross-border
Compliance for international taxes and duties
Business licenses
Registration and licensing for businesses of all sizes
Point of sale
Updated tax content for commercial transactions
1099 and W-9 forms
IRS forms management
Industries
Manufacturing
Distributors, warehouses, and manufacturers
Retail
Brick-and-mortar and ecommerce sellers
Software
SaaS, subscriptions, and digital products and services
Hospitality
Hotels, resort properties, and chains
Short-term rentals
Short-term rental property owners and managers
Accounting
Small, medium, and large accounting firms and practices
Communications
Telecom, IT, VoIP, cable, and other connected services
Governments and public sector
State and local governments and agencies
Supply chain and logistics
International traders, shippers, and suppliers
Private equity and venture capital
Buyout, growth equity, venture, and credit investors
Fuel & Energy
Automated tax compliance for fuel and energy industries
Tobacco & Vape
Automated tax compliance for tobacco and vape tax.
See all solutions
Products
CORE PRODUCTS AND SERVICES
Avalara AvaTax
Our flagship tax calculation service
Avalara AvaTax for Accounts Payable
Automated use tax compliance for your purchasing process
Avalara Returns
Returns preparation and filing products
VAT Returns & Reporting
Automate VAT return preparation, filing, and compliance
Avalara E-Invoicing and Live Reporting
Tool
International e-invoicing and reporting compliance
Avalara Exemption Certificate Management
Document management for tax-exempt sales
OVERVIEW
Our platform
The Avalara platform for tax and compliance
Tax software demos
See how Avalara products work
Pricing FAQ
How Avalara determines pricing for your business
Avalara in Cloud Marketplaces
Buy Avalara tax compliance solutions through your preferred cloud marketplace
ADDITIONAL PRODUCTS AND SERVICES
Avalara 1099 & W-9
E-filing with the IRS, states, and recipients
Avalara Sales Tax Risk Assessment
Nexus risk assessment for selling to the U.S.
Avalara Business Licenses
Licensing and registration across the U.S.
Avalara Tax Research
Plain-language answers to tax questions
Item Classification
Simplify taxability categorization with the power of AI
Avalara Cross-Border
Classification, VAT, GST, and customs management
Tariff Code Classification
Automate tariff code classification with AI
Avalara Property Tax
Real and personal property tax compliance
Streamlined Sales Tax Program
25 states cover the costs for qualified sellers
Avalara Capital
Flexible financing for compliance and growth
INTEGRATIONS AND APIS
Shopify
Microsoft
NetSuite
SAP
QuickBooks
Sage
Adobe Commerce
BigCommerce
WooCommerce
Salesforce
Oracle
See all integrations
Our APIs
Explore our API features and functionality
See all Products and Services
Partners
Existing Partners
Partner Portal
Tool
Log in to submit referrals, view financial statements, and marketing resources
Submit an opportunity
Earn incentives when you submit a qualified opportunity
Partner Programs
Become a partner
Accountant, consulting, and technology partners
Become a Certified Implementer
Support, online training, and continuing education
Awards
Celebrating partner growth and innovation
Find a partner
Avalara Certified Implementers
Recommended Avalara implementation partners
Developers
Preferred Avalara integration developers
Accountants
State and local tax experts across the U.S.
Integrations
Connect to ERPs, ecommerce platforms, and other business systems
Resources
Tools
U.S. sales tax calculator
Address-based sales tax calculator
U.S. sales tax rate tables
Rates updated each month
U.S. sales tax risk assessment
Economic nexus self-assessment
Lodging tax rate lookup
Tool
Address-based lodging tax calculator
Business license assessment
Tool
Licensing requirements questionnaire
Featured
Avalara Tax Changes 2026
Clear information about complex issues
State of Finance
Our market trends report
Forrester Total Economic Impact™
An independent, commissioned study
Interactive demos
Your guided tours to automated tax compliance
Learning
Resource center
Tools, webinars, guides, and more
Blog
Tax insights and updates for North America
Webinars
Live and on-demand tax analysis sessions
Customer stories
Testimonials from Avalara customers
Implementation
Developer resources
Tool
Documentation, tools, guides, and other resources
Product documentation
Tool
Release notes, product guides, and more
Training
Tool
Avalara University self-guided training
Support
On-demand technical support and reporting
Country and state resources
January tax updates
Tool
Stay ahead on indirect tax insights
Country guides
Tool
Global VAT, GST, and sales tax requirements
Streamlined Sales Tax program
State-supported sales tax compliance help
U.S. sales tax rates
Interactive map of U.S. sales tax rates
U.S. sales tax nexus thresholds
Nexus guides and triggers by state
Business license guides
State licensing requirements
Lodging tax rates
Address-based calculator for lodging tax rates
Lodging tax guides
State lodging tax compliance guides
Wine shipping tax rates
Direct-to-consumer wine shipping guide
1099 form types
IRS information returns
1099 requirements
Small business owner obligations
About
About
Why Avalara
What makes Avalara unique
Leadership
The Avalara executive team
Locations
Our global offices
Press
Tool
Press releases and media coverage
Jobs
Tool
Career opportunities
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EXEMPTION CERTIFICATE MANAGEMENT (ECM) BADGE MILESTONES
About this guide
Before you begin
Plan your integration
Plan your integration overview
Administration/Utilities integration
Customer record integration
companyId vs. companyCode
Additional resources
Glossary
Authentication
Authentication in AvaTax
Sandbox vs Production environments
Authentication methods overview
Username and password authentication
License key authentication
Generate a license key using the API
Generate a license key through the Avalara Portal
Ping the server
Troubleshooting
Troubleshooting overview
Identify a firewall or proxy server problem
Other common problems
Other common problems overview
Routing Problems
Authentication Problems
Firewall Problems
Ethernet Problems
Host Files/IP Address Hardcoding/DNS Caching
Proxy Server Problems
DNS time-to-live
Need SSL certificate verification
Authentication certification requirements
Test authentication
Authentication FAQ
Authentication FAQs overview
Can I use my credentials in both Sandbox and Production environments?
How can I check to confirm that the service is up?
How do I add users?
How do I identify a firewall or proxy server?
How do I reset my license key?
How do I reset my password?
I’m using the .NET Nuget AvaTax package to connect to AvaTax. Are account ID and license code enough for AvaTax API authentication?
Is TLS required?
What authentication methods are supported?
What is the Production URL?
What is the Sandbox URL?
What ports are used for communication?
Where can I get the SDK?
Where do I input the client ID?
Who do I contact if my Sandbox is expired?
Error handling in AvaTax
AvaTax error messages
Certification requirements
Log and display error messages from API responses
Configure AvaTax for ECM
Configure your AvaTax account for ECM
Create and activate a company for ECM integrations
Configure ECM
Certification requirements
Test your setup
Design the user experience
Design considerations
Certification requirements
Administration/Utilities integration
AvaTax configuration window
Configuring authentication
Test AvaTax connection
User guide
Option to enable client-side logging
Batch load customers
Request timeout definition
ECM admin console link
Customer record integration
Create customer records
Update a customer record
Retrieve customer exemption status
View exemption certificate
Print or save a certificate
Request a new certificate
Revoke a certificate
UnlinkCertificateFromCustomer
UnlinkCustomersFromCertificate
Design the ECM workflow
Workflow considerations
Typical ecommerce workflow
Typical ERP workflow
Certification requirements
Set up ECM for ecommerce
ECM in ecommerce environments
ECM in ecommerce environments overview
Prerequisites
Required components for initializing an ecommerce workflow
Set up CertExpress
Set up CertExpress overview
What is CertExpress?
Steps to set up CertExpress
Code examples
Get started with your ECM for ecommerce setup
Get started with your ECM for ecommerce setup overview
Generate a token
Understand the basic workflow
Customize your workflow
Handle customer information
Add the ecommerce integration
Use ecommerce plugin general functions to customize the workflow
Submission confirmation
Understand advanced workflows using APIs
Resources
Common SDK and API errors
Special certificate types
Ecommerce plugin general functions
Callback functions
Customer data values
Testing ECM
Document Management use cases
Create a customer record
Retrieve a customer's exemption status
Request a certificate
Update a customer record
Document Management FAQ
Document Management FAQs overview
Can I exempt transactions in Canada?
How and when does an exemption certificate get applied?
How can I utilize a single-use exemption in Document Management?
How do I extend my free trial?
How do I use company profiles?
Is SSL required?
Why is tax being collected for a customer that is set up as exempt in ECM?
Functional Review
Submit your integration for review
What to include in your demo
Retrieve a customer's exemption status
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