Question juridique clé
Whether the request to revise the contribution assessment for 1999 stock options was filed within the statutory time limit.
Solution extraite
The revision request was untimely because the relevant revision ground had been known to the appellant long before the request of 24 December 2004, and the 90-day period under Art. 67(1) VwVG had expired.
Motifs extraits
The corrected tax assessment of 2003 did not replace a proper revision request. The appellant already knew of the alleged balance-sheet fraud and related acts by February 2003, so he had to file a written revision request within 90 days of discovering the ground.