Pre-tax retirement savings shrink your taxable income, so each dollar saved costs you less than a dollar of take-home pay.
401(k) rate
Saved per year
Federal tax
Take-home
0%
$0
$6,570
$58,075
5%
$3,500
$5,800
$55,345
10%
$7,000
$5,380
$52,265
15%
$10,500
$4,960
$49,185
With state income tax
State tax depends on where you live. These rows show the effect of a flat rate on top of federal taxes; plug your own state's rate into the paycheck calculator.
About $58,075 for a single filer in a state with no income tax, based on 2026 federal brackets, Social Security and Medicare. That is $4,839.58 a month or $2,233.65 every two weeks.
What tax bracket is $70,000 in?
For a single filer, after the standard deduction the top dollars are taxed at 22%. The average federal income tax rate is much lower, 9.4%, because lower brackets apply first.
How much does a 401(k) save in tax?
Putting 10% ($7,000) into a traditional 401(k) lowers federal income tax by about $1,190 a year for a single filer, so take-home pay drops by less than the amount you save.