Philippines Computerized Accounting System (CAS) Documents
You can specify details of your Permit To Use (PTU) or Acknowledgement Certificate, the CAS document issued by the BIR, on any of the following:
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Subsidiary record
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Location record
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Company Information page
Details of the CAS document you specify, are indicated on printed Philippine documents. For more information, see Support for Simplified System Registration for CAS Users and Permit To Use (PTU) for Computerized Accounting System (CAS).