Arizona · 401(k) Contribution
401(k) Contribution in Arizona (2026)
Pre-tax 401(k) contributions reduce 2026 taxable wages up to the $24,500 employee deferral limit, with catch-up rules for eligible older workers. Arizona has a flat 2.5% income tax, so a Arizona filer's combined marginal rate on the next dollar at $72,581 of income is about 24.5% (22% federal + 2.5% AZ).
2026 savings example for Arizona
Planning estimate for a single filer earning $72,581 (Arizona median household income in LevyIO's state dataset) who removes $5,000 from taxable income. Federal tax uses the 2026 IRS brackets after the $16,100 standard deduction; AZ tax uses the state brackets in LevyIO's dataset and assumes the state follows the federal treatment.
Estimated total savings
$1,225
Federal savings
$1,100
$7,138 → $6,038 · 22% bracket
AZ state savings
$125
$1,450 → $1,325 · 2.5% marginal
Combined marginal rate
24.5%
≈ $245 saved per $1,000 deducted
Statutory maximum for this item in LevyIO's dataset: $24,500.
Federal × Arizona marginal rates (2026, single)
Gross-income ranges include the federal standard deduction. The AZ column is the state marginal rate at the midpoint of each range. The last column is the tax saved per $1,000 deducted at that combined rate.
| Federal bracket | Gross income (single) | AZ marginal | Combined | Per $1,000 |
|---|---|---|---|---|
| 10% | $16,100 - $28,500 | 2.5% | 12.5% | $125 |
| 12% | $28,500 - $66,500 | 2.5% | 14.5% | $145 |
| 22% | $66,500 - $121,800 | 2.5% | 24.5% | $245 |
| 24% | $121,800 - $217,875 | 2.5% | 26.5% | $265 |
| 32% | $217,875 - $272,325 | 2.5% | 34.5% | $345 |
| 35% | $272,325 - $656,700 | 2.5% | 37.5% | $375 |
| 37% | Over $656,700 | 2.5% | 39.5% | $395 |
Eligibility & forms
Employees with employer-sponsored 401(k) plans
- $24,500 employee elective deferral limit for 2026
- $32,500 total if age 50+ with regular catch-up
- $35,750 total if age 60-63 and the plan allows the higher catch-up
- Pre-tax contributions reduce taxable wages; Roth 401(k) contributions do not
Federal forms: W-2
Arizona filing notes
Arizona's flat 2.5% rate simplifies planning. Use the 25% capital gains subtraction on investment income. Arizona offers generous tax credits for charitable contributions and school tuition organizations.
Common mistakes: Not maximizing employer match; Over-contributing across multiple plans; Treating Roth 401(k) contributions as a current-year deduction; Ignoring payroll year-to-date deferrals after changing jobs.
Frequently asked questions
How much can the 401(k) Contribution save a Arizona taxpayer in 2026?
In LevyIO's example, a single filer with $72,581 of income (the Arizona median household income in our state dataset) who removes $5,000 from taxable income saves about $1,100 in 2026 federal tax (22% marginal bracket) plus about $125 in Arizona tax (2.5% state marginal rate), roughly $1,225 combined. It is a planning estimate computed from the 2026 IRS brackets and LevyIO's AZ bracket data, not a survey figure.
What is the Arizona income tax rate for 2026?
Arizona has a flat 2.5% income tax. The AZ standard deduction in LevyIO's dataset is $14,600 single / $29,200 married. Flat 2.5% rate since 2023. 25% capital gains subtraction. Generous charitable contribution credits.
Who qualifies for the 401(k) Contribution in Arizona?
Employees with employer-sponsored 401(k) plans. The federal rules are the same in every state; the requirements are: $24,500 employee elective deferral limit for 2026; $32,500 total if age 50+ with regular catch-up; $35,750 total if age 60-63 and the plan allows the higher catch-up; Pre-tax contributions reduce taxable wages; Roth 401(k) contributions do not. Arizona filers should confirm on the AZ return whether the state follows the federal treatment.
Which forms do I file to claim the 401(k) Contribution?
Federal: W-2. Arizona: check the Arizona Department of Revenue instructions for the matching state schedule. Common mistakes: Not maximizing employer match; Over-contributing across multiple plans; Treating Roth 401(k) contributions as a current-year deduction; Ignoring payroll year-to-date deferrals after changing jobs.
401(k) Contribution in other states
Sources
Reviewed 2026-09-17. Estimates are educational planning figures computed from the IRS 2026 inflation adjustments and LevyIO's state bracket dataset; they are not tax advice.