# New transaction

Source: https://developer.avalara.com/products/excise/integration-guides/excise/hat2906421419286/

Guide: AvaTax Excise

# New transaction

Learn about the NewTransactionModel and its use in creating or adjusting transactions for excise tax calculations.

**Element type**: Required

**Endpoints/models used**: [NewTransactionModel](https://developer.avalara.com/api-reference/excise/v1/models/Avalara.Excise.Determination.Engine.RestTransaction/)

Adjustments must include the updated transaction information for calculating excise taxes. This is done using the [NewTransactionModel](https://developer.avalara.com/api-reference/excise/v1/models/Avalara.Excise.Determination.Engine.RestTransaction/) model in the [CreateOrAdjustTransaction](https://developer.avalara.com/api-reference/excise/v1/methods/AvaTaxExciseController/AvaTaxExciseController_CreateOrAdjustTransaction/) endpoint.

## Example

```
{
  "adjustmentReason": "SourcingIssue",
  "adjustmentDescription": "Price drop after shipping",
  "newTransaction": {
    "EffectiveDate": "2024-09-01T15:53:23.769Z",
    "InvoiceDate": "2024-09-01T15:53:23.769Z",
    "InvoiceNumber": "Test_NIC",
    "TitleTransferCode": "DEST",
    "TransactionType": "WHOLESALE",
    "Seller": "RESELLER",
    "Buyer": "CUSTOMER",
    "UserData": "Test_Nicotine",
    "UserTranId": "CarisamTest1",
    "SourceSystem": "POSTMAN",
    "CustomString1": "Header1",
    "CustomString2": "Header2",
    "CustomString3": "Header3",
    "CustomString4": "",
    "CustomString5": "",
    "CustomString6": "",
    "CustomString7": "",
    "CustomString8": "",
    "CustomString9": "",
    "CustomString10": "",
    "CustomNumeric1": 4,
    "CustomNumeric2": 5,
    "CustomNumeric3": 6,
    "CustomNumeric4": 0,
    "CustomNumeric5": 0,
    "CustomNumeric6": 0,
    "CustomNumeric7": 0,
    "CustomNumeric8": 0,
    "CustomNumeric9": 0,
    "CustomNumeric10": 0,
    "AvataxTransactionType": "SalesInvoice",
    "Discount": "0.00",
    "EntityUseCode": "",
    "TransactionLines": [
      {
        "InvoiceLine": 10,
        "ProductCode": "VLEAF",
        "AlternativeFuelContent": 0.50,
        "UnitPrice": 20,
        "BilledUnits": 200,
        "GrossUnits": 200,
        "NetUnits": 200,
        "LineAmount": "",
        "AlternateUnitPrice": 1.00,
        "AlternateLineAmount": "",
        "UnitOfMeasure": "PAK",
        "UnitQuantity": 5,
        "UnitQuantityUnitOfMeasure": "EA",
        "UnitVolume": 0.5,
        "UnitVolumeUnitOfMeasure": "ML",
        "UnitWeight": "",
        "UnitWeightUnitOfMeasure": "",
        "OriginCountryCode": "USA",
        "OriginJurisdiction": "IL",
        "OriginCounty": "Cook",
        "OriginCity": "Chicago",
        "OriginPostalCode": "60601",
        "OriginAddress1": "",
        "DestinationCountryCode": "USA",
        "DestinationJurisdiction": "IL",
        "DestinationCounty": "Cook",
        "DestinationCity": "Chicago",
        "DestinationPostalCode": "60601",
        "DestinationAddress1": "",
        "SaleCountryCode": "USA",
        "SaleJurisdiction": "IL",
        "SaleCounty": "Cook",
        "SaleCity": "Chicago",
        "SalePostalCode": "60601",
        "SaleAddress1": "",
        "UserData": "Test_Vapor",
        "Currency": "USD",
        "CustomString1": "Flag1",
        "CustomString2": "Flag2",
        "CustomString3": "Flag3",
        "CustomNumeric1": 1,
        "CustomNumeric2": 2,
        "CustomNumeric3": 3,
        "TaxIncluded": false,
        "Discounted": false,
        "EntityUseCode": ""
      }
    ]
  }
}
```