Setting Up Declaration Periods
Access the GUI/VAT Declaration Period Revisions form.
 
        - Dclr YM (year and month of VAT declaration)
- Enter the Taiwanese calendar year and month of the GUI/VAT declaration. 
- Pur. YM (year and month for purchase documents)
- Enter the year and month that begins the range of dates for the purchase documents. 
- Sales YM (year and month for sales documents)
- Enter the year and month that begins the range of dates for the sales documents. 
- End YM (year and month end range of dates)
- Enter the year and month that ends the range of dates for the sales or purchase documents. 
- P/R YM (year and month for purchase returns)
- Enter the year and month that begins the range of dates for the purchase return or allowance documents. 
- S/R YM (year and month for sales returns)
- Enter the year and month that begins the range of dates for the sales return or allowance documents. 
- Delay YM (year and month of delayed declaration)
- Enter the Taiwan calendar year and month of the delayed declaration for purchase tax.