The dollar limit for contributions to a medical FSA for 2015 is $2,550. Each spouse can contribute up to this limit as long as each works for an employer offering such a plan. This enables a couple to exclude from their taxable compensation a total of $5,100. This is so even if both spouses work for the same company.
A husband and wife who are required to live apart from each other by the terms of a decree of separate maintenance. Payments under the decree are deductible by the payor and taxable to the payee as alimony.