The filing status to be used by Whitney in 2020 is Married Filing Separately.
The filing status of an individual determines the tax return form an individual will use and includes 5 categories such as:
Married filing separately is used by married partners that choose to record their incomes and deductions on separate tax returns.
The Married Filing Separately helps one of the partner to own his/her tax liability separate from the spouse's tax liability.
Therefore, in conclusion, the filing status to be used by Whitney in 2020 is Married Filing Separately because the divorce is not yet finalized, thus, still legally married.
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