delete_refund
Delete Refund Transaction
Delete a refund transaction from TaxJar. Only API-created refunds can be deleted.
delete_refund
Delete a refund transaction from TaxJar. Only API-created refunds can be deleted.
list_nexus_regions
List all nexus locations configured in your TaxJar account. Nexus regions are locations where your business has tax obligations. These are used automatically in tax calculations when nexus addresses are not provided per-request.
lookup_rates
Retrieve the combined sales tax rate for a US location by ZIP code. Returns rates broken down by state, county, city, and combined district. Optionally provide city, state, and street address for greater accuracy.
update_customer
Update an existing exempt customer in TaxJar. Provide only the fields you want to change.
update_order
Update an existing order transaction in TaxJar. Only API-created transactions can be modified. Provide only the fields you want to update.
list_summarized_rates
Retrieve minimum and average sales tax rates for all US regions/states. Intended as a backup or fallback data source. For accurate per-order calculations, use the Calculate Sales Tax tool instead.
delete_order
Delete an order transaction from TaxJar. Only API-created transactions can be deleted.
list_refunds
List refund transaction IDs stored in TaxJar. Filter by date range or marketplace provider. Returns transaction IDs which can be used to fetch full refund details.
get_refund
Retrieve a single refund transaction by its transaction ID. Returns full refund details including the referenced original order.
create_refund
Create a new refund transaction in TaxJar linked to an original order. Monetary amounts should be negative. The refund transaction ID must be unique and different from the original order.
validate_address
Validate a US customer address and receive standardized address matches with ZIP+4 precision. Can return multiple candidate matches when the input is ambiguous.
list_orders
List order transaction IDs stored in TaxJar for sales tax reporting. Filter by date range or marketplace provider. Returns transaction IDs which can be used to fetch full order details.
create_customer
Create a new exempt customer in TaxJar. Once created, pass the customer ID to tax calculations or transactions to automatically apply exemptions.
delete_customer
Delete an exempt customer from TaxJar. The customer will no longer be available for exemption lookups.
list_categories
List all supported product tax categories and their corresponding tax codes. Use these codes in tax calculations and transactions to apply correct product-level exemption rules (e.g. clothing, food, software, digital goods).
list_customers
List all exempt customers configured in TaxJar. Returns customer details including exemption type and exempt regions.
update_refund
Update an existing refund transaction in TaxJar. Only API-created refunds can be modified.
create_order
Create a new order transaction in TaxJar for sales tax reporting and filing. The order will appear on the Transactions page in TaxJar.
get_order
Retrieve a single order transaction by its transaction ID. Returns full order details including addresses, amounts, and line items.
calculate_tax
Calculate the exact sales tax for a given order based on origin/destination addresses, order amount, shipping, and line items. Returns total tax to collect with a detailed breakdown by jurisdiction (state, county, city, special district) and per line item. Supports product-level exemptions via tax codes and customer-level exemptions.
get_customer
Retrieve a single exempt customer by their customer ID. Returns full customer details including exemption type and exempt regions.
Calculate sales tax for US orders with jurisdiction-level breakdowns by state, county, city, and special district. Look up tax rates by ZIP code or address. Manage order and refund transactions for sales tax reporting and filing. Create and manage exempt customers (wholesale, government, etc.) with region-specific exemptions. List product tax categories and tax codes for product-level exemptions. Retrieve nexus regions where tax obligations exist. Validate and standardize US addresses with ZIP+4 precision.
Common questions about connecting Taxjar to AI agents with Metorial.