Questione giuridica chiave
Whether the CHF 200,000 sale proceeds were taxable in the 1999 tax year.
Decisione estratta
Yes. The gain was realized in 1999 when the seller performed and acquired an unconditional claim to the purchase price, despite staggered payment.
Motivazione estratta
For self-employed income, capital gains are taxable when the contractual performance is completed and a fixed claim against the buyer arises; payment timing is irrelevant unless the claim is conditional or merely expectant.