What Does Claiming Single Mean?
Married filing jointly should be your status choice if you want to file both your and your spouse’s incomes on one return. Filing only one return could save you time and money. Choosing one status over the other will result in different limits for tax brackets, deductions and credits.
Can a spouse file a single tax return?
Your spouse cannot use Single filing status. The IRS will catch it (because you correctly used Married Filing Separately [MFS]). He/she will receive a notice from the IRS to file an amended return. But, to answer your question, how you file this year does not affect how you can file the following year.
