Question juridique clé
Whether the AHV authorities were bound by the tax reporting after the tax objection proceedings.
Solution extraite
No binding effect existed, because the claimant had no reason to challenge the tax objection decision.
Motifs extraits
The tax objection decision effectively allowed the entire buy-ins as a private deduction, so it made no practical difference whether the other half had been treated as business expense or general deduction; therefore the claimant had no incentive to appeal tax treatment.