You can save your SSI payment as long as the saving stays under your resource limit.  For a single person ages 18 or over, your resource limit is $2,000. For a married couple with one spouse on SSI, your resource limit is $3,000. If both people in a married couple are on SSI, their resource limit is $3,000. These spouse rules only apply if you live together. For children, the amount is $2,000 per child.