Question juridique clé
Whether the appellant's independent income had to be taken into account in the calculation of supplementary benefits, and if so how.
Solution extraite
The Federal Court upheld the cantonal finding that the challenged calculation relied on tax assessments and the appellant's own tax declarations; no manifest error or federal-law violation was shown.
Motifs extraits
The appellant's criticism did not match the actual calculation basis used by the administration and the lower court. The figures stemmed from final tax determinations and his own declarations, not from an impermissible spreading of net fees over several years.