Accounting
Avalara AvaTax
API integration
Ship Accounting features without building the integration. Full Avalara AvaTax API access via Proxy, normalized data through Unified APIs — extend models and mappings to fit your product.
Talk to usUse Cases
Why integrate with Avalara AvaTax
Common scenarios for SaaS companies building Avalara AvaTax integrations for their customers.
Automate real-time tax calculation at checkout or invoice generation
SaaS billing platforms, e-commerce tools, and POS systems can connect their customers' Avalara AvaTax accounts to calculate accurate sales tax, VAT, or GST in real time — eliminating manual rate lookups across thousands of jurisdictions.
Embed tax-aware quoting in CPQ and CRM workflows
Quote-to-cash platforms can send uncommitted transactions to AvaTax for tax estimates during the quoting phase, then automatically commit them when a deal closes — giving sales teams accurate, tax-inclusive pricing without leaving their workflow.
Validate exemption certificates for B2B transactions
Wholesale marketplaces and procurement platforms can verify buyers' resale or non-profit exemption certificates through Avalara CertCapture before calculating tax, ensuring compliant zero-tax transactions without manual certificate management.
Centralize tax liability reporting across multiple sales channels
Accounting and ERP platforms can push finalized invoices from disparate channels into their customers' AvaTax accounts, giving merchants a single source of truth for tax liability and streamlined return preparation.
Accrue consumer use tax on supplier invoices
Spend management and AP automation platforms can route supplier invoices through AvaTax to detect under-charged tax and automatically accrue use tax — keeping their customers compliant without manual audits.
What You Can Build
Ship these features with Truto + Avalara AvaTax
Concrete product features your team can ship faster by leveraging Truto’s Avalara AvaTax integration instead of building from scratch.
One-click AvaTax account connection
Let your end users securely connect their Avalara AvaTax account from your product's settings page, with Truto handling credential management and authentication lifecycle.
Inline tax calculation on invoices and carts
Display jurisdiction-level tax breakdowns in real time during checkout or invoice creation by routing transaction data through your customer's connected AvaTax instance.
Automated transaction commit on payment capture
Automatically finalize and lock AvaTax transactions when payment is captured, ensuring your customers' tax ledgers stay in sync with actual revenue events.
Address validation and jurisdiction resolution
Validate shipping and billing addresses against Avalara's geospatial engine before tax calculation to guarantee rooftop-level accuracy and eliminate tax miscalculations.
Exemption certificate-aware pricing
Automatically apply tax exemptions at checkout by checking the buyer's customer code against active certificates in Avalara CertCapture — no manual overrides required.
Refund and adjustment sync
Propagate returns and credit memos from your platform to AvaTax with original transaction date overrides, so your customers' tax liability ledgers reflect accurate refund amounts.
Unified APIs
Unified APIs for Avalara AvaTax
Skip writing code for every integration. Use Truto’s category-specific Unified APIs out of the box or customize the mappings with AI.
Unified User Directory API
Organizations
Organizations are the top level entity in the source application. Users are associated with an organization.
Roles
The Role object represents a role of a User.
Users
The User object represents a User.
Workspaces
Workspaces represent concepts like teams, workspaces, projects in apps that support them
How It Works
From zero to integrated
Go live with Avalara AvaTax in under an hour. No boilerplate, no maintenance burden.
Link your customer’s Avalara AvaTax account
Use Truto’s frontend SDK to connect your customer’s Avalara AvaTax account. We handle all OAuth and API key flows — you don’t need to create the OAuth app.
We handle authentication
Don’t spend time refreshing access tokens or figuring out secure storage. We handle it and inject credentials into every API request.
Call our API, we call Avalara AvaTax
Truto’s Proxy API is a 1-to-1 mapping of the Avalara AvaTax API. You call us, we call Avalara AvaTax, and pass the response back in the same cycle.
Unified response format
Every response follows a single format across all integrations. We translate Avalara AvaTax’s pagination into unified cursor-based pagination. Data is always in the result attribute.
FAQs
Common questions about Avalara AvaTax on Truto
Authentication, rate limits, data freshness, and everything else you need to know before you integrate.
What authentication method does Avalara AvaTax use?
Avalara AvaTax REST v2 supports HTTP Basic Authentication (username + password or account ID + license key) and OAuth 2.0 bearer tokens. Truto manages the credential storage and token lifecycle so your end users can connect their accounts securely.
Are there specific Truto tools or Unified API resources available for Avalara AvaTax today?
Avalara AvaTax tools are built on request. Truto can map AvaTax capabilities — such as CreateTransaction, CommitTransaction, ResolveAddress, and exemption certificate lookups — to your integration needs. Contact us to scope the integration.
What are the rate limits on the Avalara AvaTax API?
Avalara enforces rate limits that vary by account tier and endpoint. High-volume tax calculation endpoints are designed for real-time checkout use cases and can handle significant throughput, but exact limits depend on your customer's Avalara subscription. Truto handles retry logic and rate-limit backoff transparently.
Can I use the Unified User Directory API with Avalara AvaTax?
Yes. The Unified User Directory API supports Organizations, Roles, Users, and Workspaces, which can be mapped to Avalara account structures — such as companies, user accounts, and permission sets — for managing multi-entity setups.
How does Truto handle multi-entity or multi-company setups in Avalara?
Avalara AvaTax supports multiple company profiles under a single account. Truto can scope API calls to the correct company context, so SaaS platforms serving customers with complex corporate structures can route transactions to the right entity.
What data does a typical AvaTax transaction require?
A CreateTransaction call requires a transaction type (SalesOrder or SalesInvoice), origin and destination addresses, line items with amounts and tax codes, and a customerCode. Optional fields include exemption numbers, currency codes, and custom reference fields.
Avalara AvaTax
Get Avalara AvaTax integrated into your app
Our team understands what it takes to make a Avalara AvaTax integration successful. A short, crisp 30 minute call with folks who understand the problem.
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