Consultative behavior with spouses has been found to be effective in deterring telephone call–based fraud. This study aimed to identify the factors that enhance spousal counseling behavior during fraudulent phone call encounters. In December 2019, we conducted a questionnaire survey of 874 households each exclusively composed of an elderly marital couple (n = 1,748). The influence of the day-to-day marital relationship and trust in the spouse as a counselor on the intention to consult was examined using Actor-Partner Interdependence Model (APIM) analysis. The results showed that marital satisfaction had an indirect effect on intentions for consultative behavior, mediated by trust in both wives and husbands, and that marital satisfaction was defined by daily communication and positive problem-solving strategies. The results imply that efforts to communicate with spouses and to proactively solve problems increase marriage satisfaction and are also effective in promoting spousal counseling behavior.