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The bond paid no cash all year, yet a number sits in Box 1 that looks like income out of thin air. That is original issue discount accruing by operation of law, and it is the part clients argue about most. The discount builds each year you hold the instrument, not at maturity, and the IRS expects it on the return whether or not a check was ever cut.
Reading the form is a matter of knowing which box drives which line. Box 1 carries taxable OID, Box 8 carries OID on a U.S. Treasury obligation that escapes state and local tax, Box 11 holds tax-exempt OID, and any backup withholding sits in Box 4 at the default 24% rate. A payer owes you the form once reportable OID reaches $10, and the recipient copy is due January 31, 2026.
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 TY2025 forms in the 2026 filing season, furnish recipient copy by January 31, 2026, file paper by February 28, 2026, and e‑file by March 31, 2026. 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.
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 2025 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. Note that Box 1 may not be the final figure to report on your return – if the obligation was bought at a premium, is a stripped bond or coupon, or was acquired with acquisition premium not yet netted, you may need to refigure the OID using Pub. 1212 before reporting. 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. Two pairings to watch: when Box 2 appears with Box 8, the Box 2 interest is on a U.S. Treasury obligation and is exempt from state and local income taxes; when Box 2 appears with Box 11, the Box 2 amount is tax-exempt interest and is not included in federal taxable interest income.
- Box 3, early withdrawal penalty. You can deduct this on Schedule 1 as an above-the-line adjustment to income, available even if you take the standard deduction – it is not a Schedule A itemized deduction.
- 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 and notified the payer of the election in writing per Reg. §1.6045-1(n)(5), the accrued market discount of 10 or more can appear here and is generally treated as interest. Without that written notice to the payer, market discount will not appear in Box 5 even if you intend to accrue it currently.
- Box 6, acquisition premium. This can reduce the OID you must include. If Box 6 is empty for a covered security acquired with acquisition premium, the payer has already netted the offset in Box 1 or Box 8 – do not subtract the premium again on Schedule B or you will double-count it.
- 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. When it does appear, the amount is already included in Box 2 and is NOT separately deductible – treat it as informational only, not as an investment-expense write-off.
- Box 10, bond premium. If the payer reported interest on this form, the related premium amortization can appear here. For a taxable covered security the default under §171 is to amortize bond premium – it only stops appearing in Box 10 if you notified the payer in writing per Reg. §1.6045-1(n)(5) that you do not want to amortize.
- Box 11, tax‑exempt OID. Used for specified tax‑exempt obligations that accrue OID. Tax-exempt OID is still reported on Form 1040 or 1040-SR with your other tax-exempt interest – it is not included in taxable income, but the IRS expects to see the amount on the return rather than being omitted entirely.
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 2026 filing season covering TY2025:
- Furnish recipient copies by January 31, 2026.
- File with the IRS by February 28, 2026 if on paper.
- E‑file by March 31, 2026. 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, however there is no annual cap when the failure is due to intentional disregard – exposure scales with the total volume of failures. 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.
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.
Common Mistakes We See Every Season
Roughly the same handful of mistakes shows up every January through March, and they are rarely about the rules themselves – they are about applying the rules at scale across hundreds of holdings. Here are the patterns we flag in review.
Reusable Checklists
The routines below are written for copy-paste into a firm SOP, a partner review pack, or an in-house tax-team binder. Each box reflects a single observable check, not a planning step.
Pre-furnish payer reconciliation (before January 31)
- Validate every recipient TIN against the IRS TIN match service before generating Copy B; flag mismatches for the 24% backup withholding rate referenced in Form W-9.
- Confirm each holder's §1278(b) market discount election notice is on file under Reg. §1.6045-1(n)(5).
- Confirm each holder's §171 bond premium opt-out (if any) is documented in writing per the same regulation.
- Run the de minimis OID test (0.25% × stated redemption price × years to maturity) on any short-term or thin-discount obligation before posting.
- Reconcile aggregate Box 1, Box 2, Box 4, and Box 8 totals to the payer's general ledger interest accrual for the year.
- Sort covered securities by acquisition date against the January 1, 2015 constant-yield default and the January 1, 2017 tax-exempt covered-security threshold.
- Order scannable Copy A from IRS.gov/EmployerForms, or confirm IRS IRIS e-file credentials and prior-year acknowledgments are accessible.
Holder return prep (1040 reporting)
- Confirm whether each covered security's Box 1 is gross or net of acquisition premium (empty Box 6 on a covered security = net).
- Add Box 1 and Box 8 to taxable interest; pair Box 2 with Box 8 for state-exempt treatment, or with Box 11 for federally tax-exempt treatment, before totaling.
- Move Box 3 early-withdrawal penalty to Schedule 1 as an adjustment to income.
- Claim Box 4 federal income tax withheld as a payment on Form 1040.
- Add Box 11 tax-exempt OID to other tax-exempt interest reported on Form 1040/1040-SR.
- For TIPS, treat a negative Box 8 as a deflation adjustment per Pub. 550.
- File Schedule B (Form 1040) when total taxable interest exceeds $1,500.
- Refigure Box 1 under Pub. 1212 for stripped instruments and other obligations flagged by the box-1 starting-figure check.
§6721 / §6722 penalty exposure scan
- Sort late or missing filings into the four §6721 tiers: corrected within 30 days, corrected after 30 days but by August 1, corrected after August 1 or not filed, and intentional disregard.
- Apply the 2026 per-return rates: $60, $130, $340, and a $680 minimum for intentional disregard – with no calendar-year cap on the intentional-disregard tier.
- Apply the small-filer aggregate cap only if the entity meets the $5,000,000 three-year average annual gross receipts test; per-return rates are identical for small and large filers.
- Mirror the analysis for §6722 payee statement failures – per-statement rates match §6721 dollar for dollar.
- Document the reasonable cause facts file before any §6724 abatement request is sent to the IRS.
Keep 1099-OID Season From Stalling
Form 1099-OID has two narrow pressure points each cycle and they arrive close together. Recipient copies are due January 31, paper Copy A filings land February 28, and e-file submissions are due March 31 (per the IRS General Instructions for Certain Information Returns). Any filer crossing 10 aggregate information returns must e-file – a threshold lowered from 250 effective January 1, 2024 per IRS Publication 1220.
What slows teams down is rarely the deadline itself. It is the box-level decision work behind every form: was Box 1 already netted for acquisition premium, did the holder file a §1278(b) market discount election notice under Reg. §1.6045-1(n)(5), is Box 8 Treasury OID being mistakenly added to state taxable interest? Each call needs a documented answer before the return moves to review, and each missed answer feeds a §6721 or §6722 exposure ($340 per return for returns required to be filed in 2026, with no calendar-year cap when the failure is due to intentional disregard, per the 1099-OID instructions Rev. January 2024).
- Confirm whether each covered security's Box 1 already reflects acquisition premium netting before posting to Schedule B (Form 1040). An empty Box 6 on a covered security is the signal that the broker has already netted the offset.
- Track §171 bond premium opt-outs and §1278(b) market discount elections in a per-holder log so Box 5 and Box 10 reporting matches the recipient's written notice under Reg. §1.6045-1(n)(5).
- Keep Box 8 Treasury OID isolated on the workpaper from state taxable interest – Treasury OID is exempt from state and local income tax under federal preemption.
- Reconcile Box 4 backup withholding (24% under the Form W-9 framework) against payments before the recipient Copy B mail-merge runs.
- Watch the 10-return aggregate counter weekly through January – crossing the threshold mid-cycle forces a switch to IRS IRIS or your e-file software, not a phone call to the help desk on January 30.
At Accountably, the 1099-OID cycle runs as a documented production line, not a stack of forms. Trained offshore preparers handle the box-level reconciliation and election tracking under structured workpapers, with multi-layer review before recipient furnishing and IRS transmission. See our taxation services for how an offshore team integrates into your existing 1099 workflow without changing your software or your client relationships.
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.