Kernrechtsfrage
Whether the direct federal tax claims for 1989-1990 were time-barred
Extrahierter Entscheid
The claims were not time-barred because the letter of 1999-04-14 validly interrupted prescription and a new five-year period was still running.
Extrahierte Begründung
The letter expressly referred to the 1989-1990 period and to arrears for 1989-1994, thereby clearly manifesting the authorities' intention to pursue collection; it counted as an interrupting act.