Transactions and refunds

Store completed sales and create refunds or corrections against the original transaction and calculation lines.

Save a transaction

Create a calculation with the facts for the transaction, then read its outcome.
When you need a saved record, create a transaction with the calculation ID and your order or invoice reference.
Keep the transaction and calculation IDs with your business record.

Transactions store the original amounts. They do not recalculate tax.

Record a refund or correction

Create an adjustment against the transaction. Point each adjustment line to an original calculation line and set either an amount or a quantity. The API reverses the stored tax components and prevents cumulative adjustments from exceeding the original sale.

Request

Shell

curl --request POST \
  --url "https://api.salestaxcalculatorapi.com/v1/transactions" \
  --header "Authorization: Bearer $SALESTAX_API_KEY"
  --header "Content-Type: application/json" \
  --header "Idempotency-Key: order-1001-txn" \
  --data '{"calculation_id":"calc_01J6A3S8Z6K4M6T2Y2W9M5X8Q0","reference":"order-1001"}'

Create transaction →Create adjustment →List adjustments →

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