Question juridique clé
Whether the AI office could set off CHF 17,415 of overpaid benefits to B.________ against A.________'s retroactive disability pension arrears.
Solution extraite
Yes. The compensation was admissible because the claims were closely connected in social-insurance and legal terms under the disability-pension splitting mechanism.
Motifs extraits
Under the AVS/AI compensation case law, strict mutuality under Art. 120 CO is relaxed where claims are closely linked. Here the later award to A.________ necessarily triggered a recalculation and reduction of B.________'s pension for the same period.