AI Training and Data Annotation Taxes: What You'll Owe in 2026

AI training jobs are on the rise. AI companies pay people to write and rate chatbot answers, check code and math, and label data, and the platforms that hire them are growing fast. micro1's gross revenue run rate grew from $100 million to $500 million in eight months (TechCrunch), and Handshake says it has paid more than $100 million to over 750,000 AI fellows (Handshake). US searches for "AI training jobs" roughly tripled over the past year, according to Semrush.

For most people, it's a side hustle. In a survey for an Oxford Economics study commissioned by Scale AI (the company behind Outlier), 94% of data annotators said they do the work for supplemental income (Oxford Economics).

Early numbers from Keeper's Side Hustle Index show AI training workers report median earnings of $375 a month on about 7 hours a week, and rate pay predictability just 2.3 out of 5.

That unpredictable, on-the-side income is what makes taxes tricky. Nobody likes a surprise tax bill in April. Here's what you need to know.

Do you have to pay taxes on AI training work?

Yes. Money you earn rating chatbot answers, writing prompts, labeling data, or grading code for platforms like Outlier, DataAnnotation, Mercor, Handshake AI, Alignerr, or micro1 is taxable income. The IRS says gig income must be reported whether or not you receive a 1099 or W-2, and whether you're paid in cash, through an app, or in another form (IRS Gig Economy Tax Center).

Most of these platforms treat US workers as independent contractors. That means three things in practice:

1. No taxes are taken out of your pay. Mercor, for example, tells US contractors it does not deduct taxes from payments.

2. You owe self-employment tax on top of regular income tax. This is the Social Security and Medicare tax an employer would normally split with you.

3. You're running a small business in the IRS's eyes, so you report the income and your expenses on Schedule C.

Which tax form will each AI training platform send you?

Here's what each platform says about taxes, based on its own help pages as of October 7, 2026.

Plenty of AI trainers will get no form at all, especially in 2026 when the 1099-NEC threshold rose to $2,000. That's not a big deal if you keep your own record of payouts, and Keeper helps you keep track of your income so you're not relying on a 1099. Just remember: even if you don't get a tax form, that income is still taxable.

Comparing platforms? See our roundup of the best AI training jobs.

Will you get a 1099? The thresholds changed for 2026

Maybe not, and that's fine. A missing form doesn't mean missing tax.

There are two forms you might receive, depending on how the platform pays you:

A few things trip people up here.

Payments through PayPal usually don't show up on a 1099-NEC. The IRS instructions say payments made by card or through a third-party payment network belong on Form 1099-K, not 1099-NEC (IRS). So if a platform pays you through PayPal and you earned $8,000, you may get no form at all. You still report the $8,000.

A 1099-K shows your gross amount. It isn't reduced for PayPal fees or anything else. Report the full amount on Schedule C, then deduct legitimate business costs, such as the fees, as expenses (IRS: What to do with Form 1099-K).

Don't count the same money twice. If the same payment shows up on two forms, report it once. If a form is wrong, ask the issuer for a corrected one. The IRS can't fix it for you.

If you didn't get a form, add up your payouts from the platform's earnings dashboard or your PayPal or bank history. That total is your gross income. Our guide on what to do if you don't receive a 1099 walks through it.

How much tax will you owe on AI training income?

You'll owe two federal taxes on your profit (what you earned minus business expenses), plus state tax in most states.

Self-employment tax: 15.3%

Self-employment tax is 12.4% for Social Security plus 2.9% for Medicare. It applies once your net self-employment earnings reach $400 for the year (IRS).

It's not charged on 100% of your profit. You multiply your profit by 92.35% first, which brings the effective rate to about 14.1% of profit. You can then deduct half of the self-employment tax when figuring your income tax.

For a deeper explanation, see what is self-employment tax.

Income tax: your regular bracket

Your AI training profit is added to any other income (like a W-2 job) and taxed at your ordinary rates. Two things help soften your tax bill:

• Half of your self-employment tax is deductible.

• The qualified business income (QBI) deduction generally lets you deduct up to 20% of your business profit if your taxable income is under the 2026 threshold of $201,750 for single filers or $403,500 for married couples filing jointly (Rev. Proc. 2025-32). The deduction is now permanent, and starting in 2026 there's a $400 minimum if you have at least $1,000 of qualified business income. More in our QBI deduction guide.

Let's see an example

Candice is a single filer who made $20,000 in AI training payouts in 2026. She spent $1,500 on business expenses, and her W-2 day job already puts her in the 22% tax bracket.

Meet Candice

She trains AI models on the side

Here's her 2026 tax picture.

AI training payouts$20,000

Business expenses$1,500

Day jobW-2, 22% bracket

Filing statusSingle

Here's roughly how her extra federal tax adds up:

That means Candice pays about 28% of her $20,000 in AI training income in federal taxes. Since she owes about $5,640, she should be making quarterly estimated tax payments throughout the year. If she doesn't, she could face an underpayment penalty on top of her tax bill.

How much to set aside from each payout

Using the same math, here's a rule of thumb for federal taxes on your profit:

How we got these: self-employment tax of about 14.1% of profit, plus income tax on profit after the half-SE-tax and 20% QBI deductions. Add your state's income tax rate on top. If your income is low enough that the standard deduction covers it, your real bill can be lower. If you have no expenses, apply the percentage to the full payout.

Not sure which bracket you're in? Keeper's tax bracket calculator and 1099 tax calculator can estimate it.

Do you need to pay quarterly estimated taxes?

If you expect to owe $1,000 or more when you file, the IRS wants you to pay as you go, in four installments during the year (2026 Form 1040-ES).

• The main exception: if taxes taken out of a W-2 paycheck already cover most of your bill (at least 90% of this year's tax, or 100% of last year's), you don't need to make extra payments.

• If you earned more than $150,000 last year, that second number is 110%.

The 2026 deadlines are:

You can skip the January payment if you file your 2026 return by February 1, 2027 and pay everything you owe.

If you missed earlier payments, pay what you can now. The IRS charges the penalty like interest on each late quarter. The rate for October through December 2026 is 7% a year, compounded daily (IRS, IR-2026-98). Paying sooner shrinks it. Our guide to missing a quarterly payment covers the details, and the quarterly tax calculator estimates what to send.

The safe harbor rule. If you pay at least 100% of last year's total tax (110% above $150,000 AGI) spread across the four deadlines, you won't owe an underpayment penalty, even if you end up owing more in April. This is the easiest approach when your AI training income jumps around month to month. See the safe harbor rule.

If you also have a W-2 job, there's an easier way

You can have more tax withheld from your paycheck instead of making quarterly payments. Use the IRS Tax Withholding Estimator and enter the extra amount in Step 4(c) of a new Form W-4. Withholding is treated as if it were paid evenly through the year, even if you increase it in November (IRS Pub. 505). That makes it a useful catch-up move if you fell behind. More in our guide to having 1099 and W-2 income in the same year.

What can AI trainers write off?

You can deduct ordinary and necessary costs of doing this work. Costs that are part personal and part business can only be deducted for the business share (IRS Pub. 334). Every write-off also lowers your self-employment tax, so it saves more than the same deduction would for an employee.

Common ones for remote AI training work:

Don't want to dig through a year of statements? Keeper automatically scans your linked bank accounts and credit cards for tax write-offs like your internet bill, software subscriptions, and new equipment, then files your taxes with every deduction included.

How to file taxes for AI training work, step by step

1. Total your gross income from every platform. Use 1099s if you got them, and your dashboards or PayPal history if you didn't. Or let Keeper tally it for you from your linked accounts, so payouts from every platform add up in one place.

2. Total your business expenses and keep receipts or statements. An app like Keeper can automatically find and track your tax-deductible expenses as they happen, so there's nothing to piece together at tax time.

3. Fill out Schedule C. Report gross receipts on line 1 and expenses in Part II. You file a separate Schedule C for each business. If you do the same kind of work across several platforms, many people treat that as one business on one Schedule C, but that's a judgment call to confirm with a tax pro. For a line-by-line walkthrough, see Keeper's Schedule C guide.

4. Fill out Schedule SE to figure self-employment tax if your net earnings are $400 or more (Schedule SE instructions).

5. Claim the QBI deduction (Form 8995) and half of your self-employment tax.

6. Subtract the estimated payments you already made and pay any balance by the filing deadline. For 2026 returns, that's April 15, 2027. A filing extension gives you more time to file, not to pay.

Our step-by-step guide to self-employment taxes goes deeper on each form.

This article is for general education and isn't tax advice for your specific situation. Tax figures are for tax year 2026 and were checked against IRS sources on October 7, 2026.