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A 1099 just showed up. Now what?

Maybe you forgot about a one-off gig last summer. Maybe the amount is wrong. Maybe you've never heard of the company. Three scenarios, three different responses — and one bad scenario where you ignore it.

Don't ignore a 1099. The IRS gets a copy from the payer. If you skip it on your return, the mismatch generates an automated notice (CP-2000) usually 12-18 months after filing, with interest and penalties added.

A 1099-NEC in your mailbox in late January or early February means someone paid you $600+ for services last year and reported it to the IRS. Three scenarios cover almost every case.

Scenario A: You remember the work, the amount looks right

Most common case. You worked a private bartending gig last March, did some catering in October, or had a freelance project. The 1099 amount matches roughly what you remember earning. Action: include it on your tax return.

The income goes on Schedule C, line 1 (gross receipts). Subtract business expenses (supplies, mileage, fees) to get net profit. Net profit flows two places:

  • Schedule SE for self-employment tax (15.3% on the adjusted amount)
  • Form 1040, Schedule 1 as additional income subject to federal income tax

If this is your only 1099 income and you also have W-2 wages, this is easy — every tax software handles it. If 1099 income is large (over ~$10,000), you should have been making quarterly estimated payments during the year. If you didn't, expect to owe an underpayment penalty along with the tax.

Scenario B: The amount is wrong

You worked the gig, but the 1099 says you earned more than you actually did. Maybe it includes a refund you returned. Maybe it lists payments that never cleared. Maybe it includes gross plus expenses they're supposed to deduct.

Steps to take, in order:

  1. Cross-check with your own records. Bank deposits, invoices, contracts. Be sure the 1099 is actually wrong before you escalate.
  2. Contact the issuer in writing. Email is best for documentation. Ask them to send a corrected 1099 (marked "CORRECTED" in the top box) and to file the correction with the IRS. They have until February 28 to file corrections electronically.
  3. Keep all correspondence. If you have to file with the wrong amount, you'll need documentation.
  4. If they refuse to correct: file your return with your accurate amount AND attach Form 8275 (Disclosure Statement) explaining the discrepancy. This doesn't prevent an IRS inquiry, but it documents your good-faith position.

Pro tip: the IRS's matching system flags returns where the reported income is less than the sum of 1099s on file. A return that matches the 1099 (even if the 1099 is wrong) won't trigger a notice. A return that doesn't match will. The Form 8275 disclosure protects you in the second case.

Scenario C: You never worked for this company

You opened the envelope. The payer name is unfamiliar. The amount is shocking. This is either identity theft or a paperwork error — either way you need to act fast.

Steps:

  1. Confirm it's actually addressed to you. Look at the SSN and name. If either is wrong, it was misdelivered — return to sender.
  2. Contact the payer. Sometimes it's a clerical mix-up — they meant to send it to someone with a similar name. Sometimes it's a former contractor account that was reactivated by mistake.
  3. If the payer confirms they intended to pay you and you didn't receive money: this is likely identity theft. Someone used your SSN to receive payments. File:
    • Form 14039 (Identity Theft Affidavit) with the IRS
    • A report at IdentityTheft.gov (FTC)
    • A police report (some banks require this for fraud investigations)
  4. Do NOT include the income on your return. Attach a statement explaining the disputed 1099 along with copies of your reports.

The under-$600 trap

The $600 threshold is when the payer must issue a 1099. It is NOT when you owe tax. If you earned $450 from a side gig, you still owe income tax on it. The IRS expects 100% of your earnings to appear on your return, with or without a 1099.

The $400 SE tax threshold works similarly: under $400 net profit, you skip Schedule SE — but the income still goes on Schedule C and Form 1040 for income tax purposes.

Late 1099s and amended returns

If a 1099 arrives in May (after you've already filed in April), you need to file an amended return (Form 1040-X) within three years to include the income. The amendment carries the additional tax, possible interest, and sometimes a penalty.

Don't wait for the IRS to catch it. Voluntary amended returns avoid the accuracy-related penalty; involuntary IRS corrections (a CP-2000 notice) come with it.

What about Form 1099-K?

If you received payments through Venmo for Business, PayPal, Stripe, or other processors, you may also get a 1099-K. For 2026, the threshold is $2,500 in gross payments. The same rules apply: include the income, deduct any business expenses (including processor fees), and don't double-count if you've already included the same income on a 1099-NEC.

Common questions

What if the 1099 amount is wrong?
Contact the issuer immediately. Ask them to send a corrected 1099 and to file the correction with the IRS. Keep all email correspondence. If they refuse, you can file with your own records and attach Form 8275.
What if I never worked for this company?
This is identity theft or a clerical error. Contact the issuer first. Report to the IRS using Form 14039 and the FTC at IdentityTheft.gov. Don't include the income on your return.
Do I owe SE tax on a small 1099?
If your net self-employment income across all sources is $400 or more for the year, you owe SE tax on the full amount. Below $400, no SE tax — but the income still goes on Schedule C.

Don't let next year's 1099s blindside you.

NeighCheck logs every gig payment as it happens, so when your 1099 arrives in January it matches what you tracked all year. Free, no subscription.