Sale with Tax Details {#ttp-payment-txn-sale-tax-details-task}
==============================================================

Use this information to process a sale with tax details. This transaction includes required tax details in the payment request.  
Follow these steps to process a sale with tax details.

1. Create a `TaxDetails` object and set one ore more of the tax fields.

   ```
   val taxDetails = TaxDetailsBuilder()
           .merchantTaxId("TaxID1234")
           .salesSlipNumber(12345678)
           .includedTaxAmount(BigDecimal("5.00"))
           .includedLocalTaxAmount(BigDecimal("1.00"))
           .includedNationalTaxAmount(BigDecimal("2.00"))
           .build()
   ```
2. Create a `TransactionParameters` object and provide the required information for the payment.

3. Retrieve the `transactionIntent` from the `mposUi` object and use the `startActivity` method to initiate the transaction flow.

   ```
   val transactionParameters = TransactionParameters.Builder()
               .charge(BigDecimal("1.00"), Currency.EUR)    
               .customIdentifier("yourReferenceForTheTransaction")
               .taxDetails(taxDetails)
               .build()

   val transactionIntent = mposUi.createTransactionIntent(transactionParameters)
   startActivityForResult(transactionIntent, MposUi.REQUEST_CODE_PAYMENT)
   ```
4. After the transaction is complete and the Summary screen is dismissed, the `onActivityResult` method is triggered. This action returns information about the last transaction.

   ```
   override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) 
   {
       super.onActivityResult(requestCode, resultCode, data)

       if (requestCode == MposUi.REQUEST_CODE_PAYMENT) {
           when (resultCode) {
               // Result code from a successful transaction
               MposUi.RESULT_CODE_APPROVED -> {
                  val transactionIdentifier = data?.getStringExtra(MposUi.RESULT_EXTRA_TRANSACTION_IDENTIFIER)
                  Toast.makeText(findViewById(android.R.id.content),"Transaction approved!\nIdentifier: $transactionIdentifier", Toast.LENGTH_LONG).show()
               }
               // Result code from a declined, aborted or failed transaction
               MposUi.RESULT_CODE_FAILED -> {
                  Toast.makeText(findViewById(android.R.id.content), "Transaction was declined, aborted, or failed", Toast.LENGTH_LONG).show()
               }
           }
       }
   }
   ```
5. You can get the full transaction object by retrieving the `latestTransaction` property from the `mposUi` object.

   ```
   val transactionObject = mposUi.latestTransaction
   ```