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
$49,704
$179,900
5%
$12,250
$45,784
$171,570
10%
$24,500
$41,864
$163,240
15%
$36,750
$38,714
$154,140
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 $179,900 for a single filer in a state with no income tax, based on 2026 federal brackets, Social Security and Medicare. That is $14,991.63 a month or $6,919.21 every two weeks.
What tax bracket is $245,000 in?
For a single filer, after the standard deduction the top dollars are taxed at 32%. The average federal income tax rate is much lower, 20.3%, because lower brackets apply first.
How much does a 401(k) save in tax?
Putting 10% ($24,500) into a traditional 401(k) lowers federal income tax by about $7,840 a year for a single filer, so take-home pay drops by less than the amount you save.