Answer
One spouse’s income may be considered for the family if the chosen procedure permits it and the relationship between applicants is documented. Marriage alone does not prove that income is regular or that the funds are available to the family.
Usually, you need marriage documents, proof of income and statements, and, where required, documents from a local notary or accountant. The precise set depends on the category and structure of family income.
Do not simply double the minimum amount without a clear calculation. In a family case, show the family composition, regularity of receipts, currency, actual receipt of the funds and that total income supports the applicants rather than existing only on paper.