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.