TAXATION MANAGEMENT USING ASYCUDA++ Ó UNCTAD - SITE (V1.15) A.28 Updtax(..) Logic Update a previously calculated tax. Syntax: Action is UpdTax(“Tax code”,”MP”,Tax Base, Tax Rate,Tax). Purpose: Used to modify the calculation of an existing tax and display the new results. Example : UpdTax( "ICD", "1", Statval , 5 , Statval * 5/100); This action will modify the tax “ICD”, which has to be paid (MP "1"), the tax basis is StatVal, rate is 5%, tax is 5% of StatVal. Note: Nothing is done if this action is requested on a non-existent tax. Reltax(..) Logic Relieve an existing tax. Syntax: Action is RelTax(“Tax code”,”Relief code”,Tax Base, Tax Rate,Tax). Purpose: Reduces the calculation of an existing tax, displays the modified results and stores the difference in the database (Loss of revenue). Example : RelTax("ICD", "PR1", Statval , 5 , Statval * 5/100); The calculation of tax “ICD” is modified, MP is “1” and tax basis is StatVal, rate is 5%, tax is 5% of StatVal. This function is different from  Updtax  because  it  stores  the  reduction  of  tax amount   (loss   of   revenue)   under   the   preference   code   PR1.   The   loss   of revenue  can  then  be  retrieved  for  any  purpose  (fiscal  or  statistical).  In  the example the loss of revenue is stored under the preference code "PR1". Note: Nothing is done if this action is requested on a non-existent tax. RelTaxPart(...) Logic Partially relieve a previously calculated tax. Syntax: Action is RelTaxPart(“Tax code”,”Relief code”,Tax Base, Tax Rate,Tax). Purpose: This function is similar to RelTax. It permits two different losses of revenue to be calculated and combined.  E.g. goods are imported from a country that is a member of a preference group. They benefit from a reduced rate of duty. The consignee may also be eligible to a reduced rate under a specific Customs regime. The two losses of revenue are applicable and can be stored separately. Example : RelpartTax( "ICD", "PR1", Statval , 5 , Statval * 5/100); RelpartTax( "ICD", "IVP",  Statval , 2.5 ,  Statval * 2.5/100); where PR1 is the relief code for the preference and IVP the relief code for the Customs regime. Note: Nothing is done if this action is requested on a non-existent tax.