Which federal bracket this lands in
The $16,100 standard deduction leaves $87,900 of taxable income, which puts the last dollar in the 22% federal bracket. Only $37,500 of it is actually taxed at 22% — the income below $50,400 is taxed at the lower rates first, which is why the effective rate lands well under the bracket number. The 22% band runs to $105,700, so a raise of about $17,800 would be needed before any dollar is taxed at 24%.
Where this sits in Arkansas's schedule
Arkansas runs a graduated schedule of 5 bands. After $2,470 of state deductions it taxes $101,530, putting the top dollar in the 3.7% band and producing $3,648 of state tax — 3.51% of gross pay. That is the top band of the state schedule.
Arkansas adds tax above the schedule here
$287 of the state tax on this salary comes from a recapture provision rather than the bracket table — Arkansas claws back the benefit of its lower bands once income passes a threshold this salary exceeds. A bracket-only calculation understates the bill by that amount, which is why it is reported as its own line.
Marginal rate is not the rate paid
Federal income tax of $14,050 on $104,000 of gross pay is 13.51% of the salary, against a 22% marginal bracket — a gap of about 8.5 points. The bracket describes the next dollar earned, not the pay already earned, and quoting the bracket as the tax rate overstates the bill by $8,830 at this salary.
What a $1/hr raise is actually worth
A dollar more an hour is $2,080 more a year at 2,080 paid hours. Against a combined marginal rate of about 33.35% -- the 22% federal band, Arkansas's 3.7%, 1.45% Medicare and 6.2% Social Security -- roughly $1,386 of that reaches the bank, or about $0.67 of the extra dollar.