How does a person find out if their spouse has a hidden bank account in his name only?

To find out if a spouse has a hidden bank account, one can start by reviewing shared financial documents, such as tax returns and bank statements, for any unexplained deposits or withdrawals. Monitoring credit reports may also reveal any accounts that are solely in the spouse's name. Additionally, having an open and honest conversation about finances may encourage transparency. If concerns persist, consulting with a financial advisor or a private investigator may be necessary.