Field help (THESLI)

This display-only field contains the duration of the VAT adjustment period, expressed in years. This duration is automatically determined based on the Tax type and Reference date:

• If the Tax type is BPTF and the Reference date is after 12/31/1995, the duration equals 20.
• If the Tax type is BPTF and the Reference date is before 01.01.96, the duration equals 10.
• In other cases, the duration equals 5.

 This duration is expressed in full years: Regardless of the purchase date, the purchase year is counted as a full year.