It depends on your filing status. Each one has a different standard deduction. This only applies to Federal tax. There are other taxes such as self-employment orHealth Care that bring taxes other than Federal.

 The standard deductions for 2018 are:

Single                             $12,000

Married Filing Jointly     $24,000

Head of Household        $18,000

For those taxpayers who are 65 and older or blind, add another $1300 for each condition.