Commit an Avalara AvaTax transaction and record the tax obligation for reporting
domain: developer.avalara.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Build a CreateTransactionModel with type set to SalesInvoice, commit set to false initially, and all required fields: companyCode, date, customerCode, addresses, and lines with itemCode and taxCode
POST to /api/v2/transactions/create and receive the transaction back with calculated tax details on each line
Review the tax details and if correct, commit the transaction by calling POST /api/v2/companies/:companyCode/transactions/:transactionCode/commit
Store the returned id and transactionCode in your order record for future void or adjustment operations
For returns or cancellations, use POST /api/v2/transactions/create with type set to ReturnInvoice and reference the original transactionCode in the referenceCode field
Known gotchas
Transactions created with commit: true in the initial CreateTransaction call bypass the two-step flow; ensure your checkout is ready to commit before doing this as uncommitting requires admin intervention
The taxCode on each line item determines the taxability; using the wrong taxCode for a product category can result in incorrect tax rates being applied
Avalara reconciles committed transactions for filing; voiding a committed transaction after a filing period has closed requires a ReturnInvoice rather than a void
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