How the Arizona 1099 tax calculator works
A 1099 freelancer in Arizona pays up to three taxes on the same profit: federal self-employment tax, federal income tax, and Arizona income tax. All of them are figured on net profit, meaning what clients paid you minus deductible business expenses.
Self-employment tax is the Social Security and Medicare tax an employer would normally split with you. As a freelancer you pay both halves on Schedule SE, on 92.35% of your net profit:
Federal income tax then applies to what is left after three deductions: half of your self-employment tax, the standard deduction ($16,100 single, $32,200 married filing jointly in 2026) and, for most freelancers, the 20% qualified business income (QBI) deduction:
- SE
- Self-employment tax: Social Security plus Medicare on 92.35% of net profit
- QBI
- Qualified business income deduction: up to 20% of business profit, capped at 20% of taxable income
High earners also owe the 0.9% Additional Medicare Tax on self-employment earnings above $200,000 (single) or $250,000 (joint). The QBI deduction starts to phase out once taxable income passes $201,750 (single) and is gone $75,000 later; the calculator phases it out as for a business with no employees. For a specified service business, such as consulting, only the applicable percentage of the income counts in that range as well (IRC 199A(d)(3)), so the deduction shrinks faster; switch it on in the calculator. It also applies the $400 minimum deduction that starts in 2026 for anyone with at least $1,000 of qualified business income.
The estimate leaves out deductions that depend on your situation, such as the new deduction for people 65 and older (up to $6,000 each, 2025 through 2028) and the deduction for qualified tips.
Arizona income tax
Arizona taxes income at a flat 2.5%. Before applying its rates, Arizona allows a $16,100.00 standard deduction ($32,200.00 joint). The calculator subtracts those amounts from your federal AGI, applies the rates below and then subtracts any credits:
Arizona details that affect your estimate
- HB 4168, signed in June 2026, raised Arizona's standard deduction to the federal level for 2026, so the estimate uses $16,100 for single filers and $32,200 for joint filers.
State figures come from the Tax Foundation's table of 2026 rates and brackets, updated for laws passed later that apply to all of 2026, including Arizona's (see the details above). Confirm with the Arizona Department of Revenue (opens in a new tab) before you file.
Worked example: Arizona freelancers at three incomes
Here is the 2026 estimate for a single freelancer in Arizona with no other income, taking the standard deduction and the QBI deduction:
| Net profit | Self-employment tax | Federal income tax | Arizona income tax | Total | Effective rate |
|---|---|---|---|---|---|
| $50,000 | $7,064.78 | $2,667.29 | $759.19 | $10,491.26 | 21% |
| $100,000 | $14,129.55 | $8,235.00 | $1,920.88 | $24,285.43 | 24.3% |
| $150,000 | $21,194.33 | $16,413.30 | $3,082.57 | $40,690.20 | 27.1% |
At $100,000 of profit, self-employment tax is the largest single piece at $14,129.55, more than federal income tax of $8,235.00. Arizona adds $1,920.88, bringing the total to $24,285.43, or $6,071.36 a quarter. Of the 50 states and D.C., Arizona has the 12th-lowest state income tax bill at this income.
Arizona vs. neighboring states
Taxes are one factor in where you live and work, and they change sharply across state lines. Here is the same $100,000 single freelancer in Arizona and nearby states:
| State | State income tax | Total tax | Take-home pay |
|---|---|---|---|
| Nevada | $0.00 | $22,364.55 | $77,635.45 |
| Arizona | $1,920.88 | $24,285.43 | $75,714.57 |
| New Mexico | $3,222.93 | $25,587.48 | $74,412.52 |
| Utah | $4,135.62 | $26,500.17 | $73,499.83 |
| California | $4,413.39 | $26,777.94 | $73,222.06 |
Nevada comes out lowest at $22,364.55 and California highest at $26,777.94, a difference of $4,413.39 a year. Remember that a state's total tax burden also includes sales and property taxes, and that you generally owe income tax where you live and work, not where your clients are.
Every state's figure for one example freelancer is in the 1099 tax by state table, which you can sort and download.
Selling a rental property in Arizona? The Arizona rental property capital gains tax calculator works out the federal and state tax on the sale, depreciation recapture included.
States with similar income taxes
Arizona is one of 15 states that tax income at a single flat rate. These are the closest to it for a single filer with $100,000 of freelance profit:
- Illinois: $4,455.51 of state income tax. Illinois taxes income at a flat 4.95%.
- Ohio: $1,773.34 of state income tax. Ohio taxes income at a flat 2.75%.
- Louisiana: $2,401.81 of state income tax. Louisiana taxes income at a flat 3%.
- Indiana: $2,712.09 of state income tax. Indiana taxes income at a flat 2.95%.
Quarterly estimated taxes for Arizona freelancers
No employer withholds tax from 1099 income, so the IRS expects you to pay during the year using Form 1040-ES. For 2026, the four payments are due April 15, June 15 and September 15, 2026, and January 15, 2027. You generally avoid an underpayment penalty if your payments cover at least 90% of this year's tax or 100% of last year's (110% if last year's AGI was above $150,000).
Arizona income tax is paid separately. The Arizona Department of Revenue has its own estimated payment forms; most states use the same quarterly dates as the IRS. The "Quarterly payments" view above splits your estimate into equal federal and state installments you can schedule now.
Ways to lower the bill
- Track every business expense. Software, equipment, a dedicated home office and business mileage all reduce net profit, which lowers all three taxes at once.
- Deduct self-employed health insurance and retirement contributions. A SEP-IRA or solo 401(k) can shelter a large share of freelance income from income tax.
- Keep the tax money separate. Moving your set-aside percentage into a high-yield savings account as each payment arrives earns interest until the quarterly due date.
The bottom line
A Arizona freelancer's 1099 tax bill is mostly federal: on $100,000 of net profit, self-employment tax is $14,129.55 and federal income tax $8,235.00, with $1,920.88 of Arizona income tax on top. All in, that is $24,285.43, or 24.3% of profit.
Set aside about that share of every payment, pay the IRS and the state each quarter, and rerun the Arizona 1099 tax calculator when your income changes.
Frequently asked questions
How much should I set aside for taxes as a freelancer in Arizona?
A single freelancer in Arizona with $75,000 of net profit would owe about $16,834.94 in 2026, or 22.4%; at $100,000 the estimate is $24,285.43 (24.3%). Setting aside a similar share of every payment you receive, and paying it in quarterly installments, keeps you from facing a large bill and underpayment penalties at filing time.
Does Arizona have a state income tax?
Yes. Arizona taxes income at a flat 2.5%. In this estimate, Arizona income tax on $100,000 of freelance profit is $1,920.88 for a single filer.
What is the self-employment tax rate in Arizona?
Self-employment tax is a federal tax, so Arizona self-employment tax uses the same rate as every other state: 15.3% (12.4% for Social Security and 2.9% for Medicare) on 92.35% of your net profit. The Social Security part stops at $184,500 of net earnings in 2026, and earnings above $200,000 (single) owe an extra 0.9% Medicare tax. Arizona doesn't add a separate self-employment tax.
When are estimated tax payments due in Arizona?
Federal estimated payments for 2026 are due April 15, June 15 and September 15, 2026, and January 15, 2027. Arizona Department of Revenue sets the rules for Arizona estimated tax payments; most states follow the same quarterly schedule as the IRS.
Are there local income taxes in Arizona?
The Tax Foundation's data doesn't show county or city income taxes in Arizona, so state and federal taxes are the whole picture for most freelancers there.
How much will I take home on $100,000 of freelance income in Arizona?
About $75,714.57 for a single filer, or $6,309.55 a month, after $14,129.55 of self-employment tax, $8,235.00 of federal income tax and $1,920.88 of Arizona income tax. Business expenses you deduct before reaching that profit, and retirement or health insurance deductions, would lower the tax further.
Sources and further reading
- Self-employment tax (Social Security and Medicare taxes) (opens in a new tab), Internal Revenue Service
- IRS releases tax inflation adjustments for tax year 2026, including amendments from the One, Big, Beautiful Bill (opens in a new tab), Internal Revenue Service
- Qualified business income deduction (opens in a new tab), Internal Revenue Service
- Estimated taxes (opens in a new tab), Internal Revenue Service
- Contribution and benefit base (opens in a new tab), Social Security Administration
- 2026 State Income Tax Rates and Brackets (opens in a new tab), Tax Foundation
- Enacted fact sheet for H.B. 4168/S.B. 1861 (opens in a new tab), Arizona State Senate
- Arizona Department of Revenue (opens in a new tab), State of Arizona
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