Here is the goal for this guide. You will understand what Form 1099‑OID reports, how each box works, when filers must issue it, where you report the numbers on your return, and how deadlines, e‑file rules, and penalties work for 2025. I will keep the language plain, give you examples, and flag common traps we see inside firms.
Key Takeaways
- Form 1099‑OID reports OID interest on discounted debt, for example certain bonds, notes, brokered CDs, and U.S. Treasuries issued below face value. You must include OID annually, even if you did not receive cash.
- Payers must furnish a 1099‑OID if your reportable OID is at least 10 or if there was any backup or foreign tax withheld that was not refunded.
- Box highlights you will use most often: Box 1 taxable OID, Box 2 stated interest, Box 4 federal tax withheld, Box 8 OID on U.S. Treasury obligations, and Box 11 tax‑exempt OID.
- Due dates for TY2024 forms in the 2025 filing season, furnish recipient copy by January 31, 2025, file paper by February 28, 2025, and e‑file by March 31, 2025. If a date falls on a weekend or federal holiday, it moves to the next business day.
- The e‑file threshold is 10 or more aggregate information returns. If you file at least 10, you must e‑file. This aggregation rule applies across most return types.
- Backup withholding on OID uses a 24% rate when triggered, and it goes in Box 4 for the recipient to claim.
- Penalties scale by timing. For returns due in 2025, the per‑form amounts are 60, 130, 330, and 660 for intentional disregard, with different calendar year maximums. For returns due in 2026, the “after August 1” amount increases to 340 and intentional disregard to 680.
If you remember one thing, remember this, OID is interest, you include it every year, even if you never touched the cash.
What is Form 1099‑OID
Form 1099‑OID is an IRS information return that reports the original issue discount you must include in income for the calendar year. OID is the built‑in interest that accumulates because the instrument was issued at a discount to its redemption price. Your broker or the issuer sends you the form and sends the IRS a copy, so your return should reflect those amounts. The $10 threshold applies to reportable OID, and the form is also required any time backup or foreign tax was withheld and not refunded, even if OID is below 10.
You will mostly look at these boxes:
- Box 1, taxable OID you must include in interest income for the year.
- Box 2, the stated interest actually paid during the year.
- Box 4, federal income tax withheld, including backup withholding at 24% when applicable.
- Box 8, OID on U.S. Treasury obligations, federally taxable but often excluded by states.
- Box 11, tax‑exempt OID on certain municipal obligations.
You do not attach the 1099‑OID to your return, you keep it in your records, and you report the numbers on Form 1040, usually on the interest line and Schedule B if needed.
Why you received a 1099‑OID when “nothing happened”
OID accrues day by day. If you buy a zero‑coupon municipal at a discount or you hold a Treasury issued below par, the instrument grows toward face value over time. That growth is interest for federal tax purposes, which is why you see Box 1 OID, and, for Treasuries, Box 8. Your broker computes the daily portions using the IRS yield methods and reports your share for the calendar year.
When the 10 threshold does not matter
Even if your OID is under 10, you still receive a 1099‑OID when the payer withheld backup withholding or foreign tax that was not refunded. That is because the IRS wants you to be able to claim the tax payment on your return, and it wants the amounts to match its records.
Understanding Original Issue Discount, in plain English
Think of OID as interest that is baked into the price tag. A bond with a face value of 1,000 might be issued at 940. Over its life, the value creeps up toward 1,000. That 60 spread is interest, and a slice of it belongs in your income each year you hold the bond. This is true whether or not you received any coupon payments. The 1099‑OID captures that slice for the tax year so you can report it correctly.
Here is a simple example. You hold a Treasury issued at a discount. Your broker calculates 85 of OID for 2024 and reports it on Box 8 because it is a Treasury. You add 85 to your federal interest income. Your state likely treats Treasury OID as exempt, however you must follow your state’s rules and show the adjustment on your state return.
When OID rules apply
- The instrument was issued below face value, for example a corporate bond, note, brokered CD, or U.S. Treasury obligation.
- You must include OID annually, not just at sale or maturity.
- The payer issues Form 1099‑OID when reportable OID is at least 10 or when backup or foreign tax was withheld.
- Treasury OID is reported separately in Box 8.
- Certain obligations, for example many U.S. savings bonds and some small personal loans, are not reported on 1099‑OID. Always check the official instructions for exceptions.
What the form reports, at a glance
You will use Form 1099‑OID to align your return with what the payer sent to the IRS. The boxes below are the ones most taxpayers touch. The full form has additional boxes that apply in specific situations like market discount or bond premium.
| Item | Purpose |
| Box 1 | OID includible in income for the calendar year |
| Box 2 | Other interest actually paid, the stated coupon |
| Box 3 | Early withdrawal penalty, for example on certain CDs |
| Box 4 | Federal income tax withheld, including backup withholding |
| Box 5 | Market discount on covered securities, if elected and 10 or more |
| Box 6 | Acquisition premium, used to reduce includible OID |
| Box 7 | Description of the instrument |
| Box 8 | OID on U.S. Treasury obligations |
| Box 9 | Investment expenses, rare, used in certain trust reporting contexts |
| Box 10 | Bond premium amortization related to interest reported on this form |
| Box 11 | Tax‑exempt OID |
| Boxes 12–14 | State info and any state withholding |
Tip, Treasury OID in Box 8 is federally taxable, however it is often excluded from state income tax. Save the form for state substantiation and follow your state’s adjustment rules.
Where do you report 1099‑OID on your tax return
You report Box 1 and Box 8 amounts as interest on Form 1040, and on Schedule B if your total taxable interest exceeds 1,500. If Box 4 shows federal withholding, you claim it as a tax payment on your Form 1040. If Box 3 shows an early withdrawal penalty, you deduct it on Schedule 1 as an adjustment to income. For market discount, acquisition premium, and bond premium, follow the instructions so you do not overstate income.
A quick “what‑goes‑where” checklist
- Interest income, include Box 1 and Box 8 results.
- Schedule B, required if total taxable interest exceeds 1,500.
- Schedule 1, early withdrawal penalty from Box 3.
- Form 1040, payments, Box 4 withholding amount.
Box‑by‑Box walkthrough
Box 1, OID amount you include this year
This is the core of the form. Box 1 shows the taxable OID that accrued for your account during the year on non‑Treasury obligations. You add it to interest income for the year, not when the instrument matures. The payer enters an amount when the reportable OID is at least 10, or when backup or foreign withholding requires a form even if the OID is under 10. Do not net Box 1 with penalties or withholding.
Key reminders
- Box 1 is interest income for the accrual year.
- Do not reduce Box 1 for Box 4 withholding, you claim withholding separately.
- Treasury OID does not go here, it goes in Box 8.
Boxes 2 through 8, the most common companions
- Box 2, other periodic interest. This is the stated coupon paid in cash. You include it in interest, and if your total taxable interest exceeds 1,500, it flows onto Schedule B.
- Box 3, early withdrawal penalty. You can deduct this on Schedule 1.
- Box 4, federal income tax withheld. This includes backup withholding when applicable. You claim it as a payment on Form 1040.
- Box 5, market discount. If you made the section 1278(b) election for a covered security, the accrued market discount of 10 or more can appear here and is generally treated as interest.
- Box 6, acquisition premium. This can reduce the OID you must include.
- Box 7, description of the instrument to help you identify the position.
- Box 8, OID on U.S. Treasury obligations. Federally taxable, often state‑exempt under state law. Keep the form for state proof.
Boxes 9 through 11, the special cases
- Box 9, investment expenses. Rare, generally used in trust contexts, and not common for everyday brokerage 1099‑OID reporting.
- Box 10, bond premium. If the payer reported interest on this form, the related premium amortization can appear here.
- Box 11, tax‑exempt OID. Used for specified tax‑exempt obligations that accrue OID.
Pro move, read the footnotes your broker includes with consolidated 1099s. They often explain how market discount, acquisition premium, and bond premium were handled so you do not double count or miss an adjustment.
State reporting and Treasury OID
Treasury OID in Box 8 is federally taxable, however many states exclude it. Use Boxes 12–14 for state names, state identification numbers, and any state withholding. Keep the 1099‑OID with your records to support state exclusions or adjustments. Rules vary by state, so check the current instructions before filing.
Who must file Form 1099‑OID
If you are an issuer or broker that holds or issues discount obligations, you must file Form 1099‑OID for each holder with 10 or more of reportable OID for the calendar year. You must also file if you withheld backup withholding or foreign tax on OID and did not refund it, even if reportable OID is under 10. Accurate payer and recipient names, addresses, and TINs are required.
Required filers checklist
- Issuers with registered or bearer debt issued at a discount.
- Brokers and middlemen, including when holding CDs as nominee.
- File one form per obligation unless the instructions allow consolidation for identical certificates.
- Coordinate with transfer agents to avoid duplicate or missing filings.
Thresholds and exceptions, quick table
| Situation | Filing requirement | Notes |
| OID ≥ 10 | File 1099‑OID | Threshold met |
| OID < 10 and backup withholding | File | Threshold does not apply |
| OID < 10 and foreign tax withheld | File | Threshold does not apply |
| Certain tax‑exempt obligations, for example many U.S. savings bonds | Do not file | See exceptions |
| Small personal loans in non‑lending contexts | Do not file | See instructions |
Deadlines and how to avoid late penalties
For the 2025 filing season covering TY2024:
- Furnish recipient copies by January 31, 2025.
- File with the IRS by February 28, 2025 if on paper.
- E‑file by March 31, 2025. If a date falls on a weekend or federal holiday, use the next business day.
Starting with returns required to be filed in calendar years 2024 and later, if you have 10 or more information returns in total, you must e‑file them. The 10‑return rule aggregates most types, for example your W‑2s plus your 1099s, not just one form type.
Backup withholding, when it applies, and the rate
Backup withholding can apply to OID when the payee fails to furnish a correct TIN, fails certification on Form W‑9, or the IRS notifies the payer that the payee is subject to backup withholding due to underreporting. The backup withholding rate is 24%. Report any backup withholding on Box 4 so the payee can claim it as a credit on the tax return.
If you receive a CP2100 or CP2100A “B‑Notice” telling you a TIN/name combination is incorrect, follow the IRS steps and note the “2nd TIN not” indicator as instructed in the form’s instructions.
How you, the taxpayer, report OID on your return
- Include Box 1 and Box 8 amounts in interest income for the year.
- Use Schedule B if your total taxable interest exceeds 1,500.
- Deduct Box 3 early withdrawal penalties on Schedule 1.
- Claim Box 4 federal tax withheld as a credit on Form 1040.
- Apply acquisition premium from Box 6 and any bond premium from Box 10 so you do not overstate income.
Penalties, what changed for 2025 and what is next in 2026
The IRS updates penalty amounts periodically. For returns due in 2025, the per‑form penalty schedule is 60 if corrected within 30 days, 130 if by August 1, 330 after August 1 or not filed, and 660 for intentional disregard. For returns due in 2026, the “after August 1” amount increases to 340 and intentional disregard to 680. Annual maximums differ for small and large filers. Always check the current General Instructions if you are close to limits.
| Year due | Up to 30 days late | 31 days through Aug 1 | After Aug 1 or not filed | Intentional disregard |
| 2025 | 60 | 130 | 330 | 660 |
| 2026 | 60 | 130 | 340 | 680 |
E‑filing options and practical best practices
- If you file 10 or more information returns in the year, you must e‑file. The rule aggregates almost all information return types.
- Use the IRS IRIS portal for 1099 e‑filing or your preferred software. Keep transmission receipts and acknowledgments.
- Validate names and TINs, confirm truncation rules for recipient copies, and keep electronic copies for at least three years.
- Furnish recipient copies by January 31, then transmit to the IRS by March 31 if e‑filing.
Fraud alert, 1099‑OID schemes to ignore
The IRS warns every year about scams that try to exploit 1099‑OID, often by fabricating withholding to claim fake refunds. If anyone tells you to file a 1099‑OID to “redeem” secret accounts, walk away. That is a well‑known abusive scheme and appears on the IRS Dirty Dozen lists. Report suspicious promotions to the IRS.
If you ever see a claim that a 1099‑OID can be used to pay bills or erase debts, that is false and risky. The IRS and the Department of Justice have taken action against promoters of these schemes.
Spot the signs early. Big promises, pressure to bypass normal reporting, instructions to create fake withholding, or talk of “secret” Treasury accounts, those are red flags.
FAQs
What is Form 1099‑OID for, in one line?
It reports OID interest that accrued for the year on discounted debt you held, and it tells you and the IRS the amount you must include on your return now, not at maturity.
What does OID mean at the IRS?
OID is the excess of redemption price over issue price, recognized over the life of the instrument using IRS methods. You include the annual slice as interest.
What is the threshold for Form 1099‑OID?
Payers file when reportable OID is at least 10, and they also file anytime backup or foreign tax was withheld and not refunded, even if OID is under 10.
How do I report OID on my return?
Include Box 1 and Box 8 in interest income, use Schedule B if total taxable interest exceeds 1,500, claim Box 4 withholding as a payment, and apply any Box 6 acquisition premium and Box 10 bond premium adjustments.
When an expert partner helps
If you run a CPA or EA firm, the real challenge is not knowing the rules, it is applying them consistently at scale. Our team at Accountably integrates trained offshore talent inside your systems, with SOP‑driven execution, structured workpapers, and multi‑layer review so your preparers and reviewers move faster without quality loss. Use us when you want 1099 seasons that run on time, with clear SLAs, and clean audit trails. We work inside tools like QuickBooks, CCH Axcess, Thomson Reuters, Karbon, TaxDome, and Suralink so your team stays in control of the workflow.
You keep the client relationship and standards. We bring disciplined capacity when you need it most.
Final checklist before you file
- Match each 1099‑OID to the correct account and CUSIP.
- Reconcile Box 1, Box 2, Box 8, and any Box 4 withholding.
- Apply acquisition premium, market discount elections, and bond premium correctly.
- Deliver recipient copies by January 31, then e‑file by March 31 if you meet the threshold.