How To Fix FOT_TDT018 - Tax calculation from date could not be derived for tax code &1

SAP Error Message - Details

• Message type: E = Error

• Message class: FOT_TDT -

• Message number: 018

• Message text: Tax calculation from date could not be derived for tax code &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FOT_TDT018 - Tax calculation from date could not be derived for tax code &1 ?

  The SAP error message FOT_TDT018 indicates that the system is unable to derive the tax calculation date for a specific tax code. This typically occurs during the processing of financial transactions where tax codes are involved, such as in invoice processing or during the posting of financial documents.
  Cause:
  The error can be caused by several factors, including:
  
  
  Missing Tax Configuration: The tax code may not have been properly configured in the system, or the relevant tax calculation date is not defined for the tax code in question.
  
  
  Invalid Tax Code: The tax code used in the transaction may not be valid for the specific transaction type or may not be applicable for the date of the transaction.
  
  
  Date Issues: The date of the transaction may fall outside the range of valid dates for the tax code, meaning that the system cannot find a valid tax rate to apply.
  
  
  Tax Jurisdiction Changes: Changes in tax regulations or jurisdictional tax rates that have not been updated in the system can also lead to this error.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Tax Code Configuration:
  
  Go to the transaction code OB40 (or the relevant configuration transaction) to check the configuration of the tax code.
  Ensure that the tax code is correctly defined and that the tax calculation date is set up properly.
  
  
  
  Verify Validity Dates:
  
  Check the validity dates for the tax code. Ensure that the date of the transaction falls within the valid range for the tax code.
  If necessary, update the tax code to include the correct date range.
  
  
  
  Review Transaction Data:
  
  Review the transaction data to ensure that the correct tax code is being used and that it is appropriate for the transaction type.
  
  
  
  Consult Tax Authorities:
  
  If there have been recent changes in tax regulations, consult with your tax department or external tax advisors to ensure that the system is updated accordingly.
  
  
  
  Test with Different Dates:
  
  If possible, try processing the transaction with different dates to see if the error persists. This can help identify if the issue is date-related.
  
  
  
  Check for System Notes:
  
  Look for any SAP Notes related to this error message. Sometimes, SAP releases notes that provide additional guidance or fixes for specific issues.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OBYZ (for tax code determination) and FBL1N (for vendor line items) to help troubleshoot the issue.
  SAP Documentation: Refer to SAP Help documentation for detailed information on tax configuration and error handling.
  Support: If the issue persists after checking the above points, consider reaching out to SAP support or your internal SAP support team for further assistance.
  
  By following these steps, you should be able to identify and resolve the cause of the FOT_TDT018 error message in SAP.