What is the difference between Married Filing Jointly and Married Filing Separately for state purposes?
If you choose Married Filing Jointly, all of your income and your spouse’s income will be added together for the purpose of calculating any tax owed and any credits or refunds due. If you choose Married Filing Separately, your income and your spouse’s income will be kept separate for the purpose of calculating any tax owed and any credits or refunds due. If both you and your spouse had income, it will most likely be to your advantage to file Married Filing Separately. This filing status often results in lower total tax when both spouses have income.