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Tax-free exclusion of US bond interest
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Tax-free exclusion of Social Security Benefits
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Credit for the Elderly and Disabled
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Child and Dependent Care Credit
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Earned Income Credit
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Tuition and fees deduction
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Student loan interest deduction
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Hope or Lifetime Learning Educational Credits
Married taxpayers may be eligible to file using the Head of Household filing status if your spouse did not live with you during the last six months of the year, your home was the main home of your child for more than half the year, and your considered unmarried.
The head of household filing status allows you to choose the standard deduction even if your spouse chooses to itemize deductions." IRS Publication 501, Married Filing Separately
This can apply to you even if you are not divorced or legally separated. If you qualify to file as head of household, instead of as married filing separately, your tax may be lower, you may be able to claim the earned income credit along with other credits, and your standard deduction will be higher.

