Key legal question
Whether child maintenance payments for the parties' shared daughter were deductible for direct federal tax.
Extracted holding
Yes. The payments were deductible because the child was under the mother's sole parental authority, and the later-approved maintenance agreement had retroactive effect.
Extracted reasoning
Art. 33(1)(c) DBG applies according to its clear wording and does not depend on whether the parents live in the same household. The cantonal authority's reliance on shared household and the tax office's demand for prior guardianship approval were misplaced; the approved agreement became binding retroactively.