A 1099 e-file error is either a rejection or an “Accepted with Errors” status. A rejection means the IRS did not take the submission, so you fix it and replace the whole submission. “Accepted with Errors” means the IRS took the records but found problems in the data, so you file corrections. This guide explains how to tell the two apart, what usually causes each, and what to do next.
TL;DR
- Rejected means the submission was not accepted. Resolve the issues and replace the entire submission. If the due date has passed, send the replacement within 60 days of the rejection date.
- Accepted with Errors means the IRS processed the records but flagged data problems. File corrections anyway.
- The most common causes are name/TIN mismatches, missing or badly formatted TINs, missing required fields, and CSV formatting mistakes.
- Wrong dollar amounts, codes or checkboxes are corrected differently from wrong names or TINs. Identify the error type before you file anything.
- Penalties for 2026 returns start at $60 per return and rise with time. Fix errors as soon as you find them.
Filing one yourself? You can e-file Form 1099-NEC online with TaxFormHero, an IRS-authorized e-filing platform.
What a 1099 e-file error actually means
The word “error” covers two different outcomes in the IRS Information Returns Intake System (IRIS). They need different responses.
| Status | What it means | What you do |
|---|---|---|
| Accepted | IRS finished processing and found no errors | Nothing further |
| Accepted with Errors | IRS finished processing and identified errors in the data | File corrections for the affected records |
| Rejected | The submission was not accepted | Fix the issues and replace the entire submission |
The IRS defines these statuses in Publication 5717. An Accepted status means processing finished with no errors and no further action is needed. Accepted with Errors means processing finished and the IRS identified errors. The same publication tells filers to make every effort to file corrections for those errors.
Do not read “accepted” as “done.” The IRS’s own IRIS Working Group Q&A says records accepted with errors are considered accepted, but every effort should be made to provide a correct information return by filing corrections. A return with an uncorrected name/TIN problem is still a return with a problem.
How to find the error
Start with the IRIS Taxpayer Portal. According to Publication 5717, you can review submitted forms there and download the transmission acknowledgment in JSON format. If you file through software or an A2A connection, the acknowledgment is the record of what the IRS actually returned.
Work through it in this order:
- Check the submission status: Accepted, Accepted with Errors, or Rejected.
- Note the level of the error: the whole transmission, or individual records.
- Read the error code and message for each affected record.
- Group the records by cause. One bad template column can produce hundreds of identical errors.
- Fix the cause in your source data, not only the individual record.
The IRS has not published a threshold for how many failures are tolerated, so there is no safe error count to aim for. Treat every flagged record as one to fix.
If you filed through a provider, ask what error detail it shows you. The IRS has told software users that commercial providers should be evaluated for their ability to handle replacements and corrections before adoption, according to the July 2025 IRIS Working Group materials. Handling errors well is part of the software, not an extra.
The most common causes of 1099 e-file errors
Most errors come from a short list of causes. Almost all of them can be caught before transmission.
Name and TIN mismatches
IRIS checks name/TIN combinations against IRS and SSA files. Per the IRIS Working Group slides from March 2024, combinations that do not match, or cannot be found, are flagged, and filers are expected to correct them.
Common reasons for a mismatch:
- The recipient used a nickname or a shortened first name on the W-9.
- A sole proprietor gave a business name with a personal SSN, or the reverse.
- A name changed after marriage and the IRS file was not updated.
- A digit was transposed when the TIN was typed.
- The TIN is correct but belongs to a different entity than the name on the form.
Trying different spellings of a name in a correction rarely helps. The better route is to verify the name and TIN pair before you file, and to request a new Form W-9 from the recipient when it does not verify. Our IRS TIN matching guide covers that workflow for tax professionals. Businesses that collect payee data in operational systems face the same issue. This 1099 recon workflow for dealers shows how name and TIN mismatches arise when vendor records are loosely maintained.
Missing, invalid or badly formatted TINs
Publication 1099 identifies missing, invalid or improperly formatted TINs as common filing defects. A TIN generally must contain nine digits. Electronic records follow a prescribed field format, so hyphens, letters and other invalid characters do not belong in the field.
Typical examples:
12-3456789entered with the hyphen into a field that expects nine digits.- A TIN with eight digits because a leading zero was dropped in a spreadsheet.
- A placeholder such as
000000000or the word “applied.”
Missing required fields
Publication 1099 also notes that missing required information can trigger IRIS errors. Examples include an absent recipient TIN, missing recipient name fields, missing issuer contact information, and incomplete address or state data. The IRS says required fields must be populated before resubmission.
CSV and spreadsheet problems
The IRIS Working Group slides list the common CSV errors:
- an outdated template
- improper formatting
- multiple tax years or form types in one file
- numbers converted to scientific notation
- date formats that are not allowed
- extra lines
Spreadsheets cause most of these silently. Excel will happily turn a long number into scientific notation or strip a leading zero from a TIN. Keep identifiers as text, use one file per form type and tax year, and download the current template instead of reusing last year’s.
Incorrect amounts and codes
These are the errors that often show up after acceptance. Publication 1220 lists incorrect payment amount codes in the issuer record and incorrect payment amounts in the payee record as correction-error types. Examples: reporting nonemployee compensation in the wrong box, or entering a total that includes reimbursed expenses that should not be there.
Duplicates
Sending the same return twice is a mistake that a standard correction does not undo. Publication 1220 says duplicate reporting is not resolved by the standard correction process, and corrected returns must follow the record-sequence and coding specifications. Before you resubmit, confirm in the portal whether the original was in fact received. The same logic applies in any process where a mistaken entry is reversed instead of overwritten, as this payroll error correction process guide shows for payment amounts.
Fixing a rejected submission
A rejection is the simpler case. Nothing was accepted, so there is nothing to correct yet.
- Open the acknowledgment and read every rejection reason, not only the first.
- Resolve each issue in your source data.
- Replace the entire submission. Publication 5717 says to resolve the issues and replace the entire submission, not patch a few records.
- Track the clock. For transmissions rejected by IRIS, the IRS says to submit a replacement no later than 60 days after the rejection date to avoid potential late-filing penalties if the return due date has passed.
- Confirm the new status in the portal.
If you have not yet obtained access to IRIS, rejections are not your first problem. Our IRIS 1099 guide explains the TCC application and the waiting time to plan for.
Correcting records accepted with errors
When records are accepted with errors, the process is a correction, not a replacement. Publication 5717 says to use Correct/Replace to start correcting the selected form.
Publication 1099 adds three rules:
- File corrections as soon as possible.
- File only for returns that require correction.
- If the original was filed electronically, use the same electronic system for the correction.
Furnish corrected recipient statements as soon as possible too. A correction filed with the IRS does not fix what the recipient received.
Type 1 and Type 2 errors
Corrections are commonly split into two groups, and the group decides how many returns you file.
Type 1: wrong amount, code or checkbox. Example: you reported $4,500 of nonemployee compensation and the correct figure is $5,400. You file one corrected return with the right data and the corrected indicator. It replaces the earlier record. Our step-by-step article on correcting a Type 1 error on an e-filed 1099 walks through it.
Type 2: wrong recipient identity. Wrong or missing TIN, wrong name, or the wrong form type altogether. Because the original record sits under the wrong identity, it cannot simply be overwritten the way a Type 1 can. These errors need the more careful sequence set out in the IRS correction specifications in Publication 1220. Check those specifications for your exact case before filing. Do not apply the Type 1 method to a Type 2 problem.
A quick test: if the recipient is the right person and only a number or code is wrong, it is likely Type 1. If the identity of the recipient on the record is wrong, treat it as Type 2.
Deadlines and penalties
Correct quickly, because the penalty clock keeps running. The IRS information return penalties page lists these amounts for returns due in 2026, per return or payee statement:
| When the return is corrected or filed | Penalty per return |
|---|---|
| Within 30 days after the due date | $60 |
| Day 31 through August 1 | $130 |
| After August 1, or not filed | $340 |
| Intentional disregard | $680 |
Annual caps differ by business size, and there is no cap for intentional disregard. Penalties can apply separately to the IRS return and the recipient statement, subject to caps and exceptions, as Publication 1099 explains.
For tax year 2025, Publication 1220 lists March 31 as the electronic filing deadline for most Forms 1099 and January 31 for Form 1099-NEC. When a deadline falls on a weekend or legal holiday, filing by the next business day is timely. Our 1099 deadlines checklist tracks the dates for the coming season, and the IRS page above is the place to confirm current amounts.
Prevention checklist before you transmit
Most 1099 e-file errors are cheaper to prevent than to fix. Use this list on every batch.
- Collect a W-9 before the first payment. Waiting until January is how bad data arrives at filing time.
- Verify the name and TIN. Run a check before you file, and request a fresh W-9 when it fails.
- Standardize identifiers. Nine digits, no hyphens, no letters, stored as text.
- Use the current template. One tax year and one form type per file.
- Fill every required field. Payer contact details, recipient name, full address, state.
- Reconcile amounts. Match each total to your payment records and use the correct box.
- Check for duplicates. Compare the recipient list against what was already submitted.
- Review before you submit. Read the preview, not just the spreadsheet.
If you do not know which software catches these issues, our comparison of 1099 software with TIN checks explains what to look for.
Our perspective
We see the same pattern in rejected and flagged filings: the error was visible weeks earlier. A payee gave a name that did not match the TIN, and nobody checked until the return was already transmitted.
We built TaxFormHero around that point. TIN matching is an optional per-check step at $0.49, so you can verify a recipient when you collect the W-9 instead of finding the mismatch after filing. Bulk import from Excel or CSV is useful at volume, but it moves mistakes faster too, so we treat the import step as a review step. Read the recipient list before you submit it.
Our advice for any filer, with us or elsewhere: verify first, transmit second, and read every acknowledgment. An accepted status is not the same as a clean return. Fix flagged records the day you see them, because the penalty tiers depend on time.
— Nazrul
Verify recipients before you file
If mismatches are your recurring problem, TIN matching at $0.49 per check lets you verify a name and TIN pair before it reaches a return. TaxFormHero is an IRS-authorized e-filing platform with no subscription or signup fee. 1099 pricing is graduated: the first 150 forms are $1.99 each, forms 151–500 are $0.99, forms 501–1,000 are $0.60, and forms above 1,000 are $0.45. Optional add-ons include state filing at $0.99, print and mail at $1.69 and encrypted e-delivery at $0.19 per form. See all per-form prices.
Handling a large payee list across several clients? Our enterprise information return filing page describes the high-volume option.
Delivering corrected statements
A correction has two audiences: the IRS and the recipient. Publication 1099 says corrected recipient statements should be furnished as soon as possible. Keep a record of when and how each corrected copy was sent. If you deliver electronically, the recipient’s consent and your proof of delivery matter in an audit, which we cover in 1099 electronic delivery: consent, proof and the audit trail.
FAQ
What is the difference between a rejected 1099 and one accepted with errors?
A rejected submission was not accepted, so you resolve the issues and replace the entire submission. An Accepted with Errors submission was processed, but the IRS flagged data problems. In that case you file corrections for the affected records using Correct/Replace in the IRIS Taxpayer Portal.
How long do I have to resubmit a rejected 1099?
For transmissions rejected by IRIS, the IRS says to send the replacement within 60 days of the rejection date to avoid potential late-filing penalties if the due date has already passed. If the due date has not passed, the normal deadline still applies. Do not wait for the 60 days to run out.
How do I find my 1099 e-file error code?
Open the IRIS Taxpayer Portal and review the submitted forms. You can also download the transmission acknowledgment in JSON format. If you file through software, check how it displays the acknowledgment details.
Do I always need to file a correction when a 1099 is accepted with errors?
The IRS considers the records accepted, but says to make every effort to file corrections. A name/TIN mismatch or wrong amount left in place means the IRS record is still wrong. File the correction and send the recipient a corrected statement.
What penalty applies if I fix a 1099 late?
For returns due in 2026, the IRS lists $60 per return within 30 days, $130 from day 31 through August 1, $340 after August 1, and $680 for intentional disregard. Caps depend on business size. Confirm current figures on the IRS penalties page.
Sources
- IRS Publication 5717: IRIS Taxpayer Portal user guide
- IRS Publication 1099: General Instructions for Certain Information Returns
- IRS Publication 1220: Electronic filing specifications
- IRS information return penalties
- IRIS Working Group meeting slides, March 13, 2024
- IRIS Working Group Q&A, April 10, 2024
- IRIS Working Group meeting, July 2025
Recommended
- Avoid 1099 Penalties: E Filing for Small Businesses & Tax Pros
- Fixing a 1099 E-File Rejection: What to Do Right Now
- 1099 Type 1 Error Correction: One Return Fixes It (2026)
- How to File a 1099 Correction: Complete Payer Guide
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