Final answer:
In 2018, a couple can file as married filing joint if they meet the requirements set by the IRS. Differences in income levels, tax credits or deductions, or marital status throughout the year will not prevent them from filing jointly.
Step-by-step explanation:
In 2018, a couple can file as married filing joint as long as they meet the requirements set by the Internal Revenue Service (IRS). The following factors WILL NOT prevent a couple from filing as married filing joint:
- Differences in income levels: Each spouse can have a different income level and they can still file jointly.
- Differences in tax credits or deductions: Even if one spouse has more tax credits or deductions than the other, they can still file jointly.
- Marital status throughout the year: As long as the couple was legally married at any point during the tax year, they can file jointly.
It is important to note that the tax brackets and rules for filing as married filing joint may vary from year to year.