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1099 Forms

Form 1099-OID Instructions: IRS Rules, Boxes, Deadlines, and Filing Steps for Payers

Updated: June 10, 2026

Understand Form 1099-OID instructions for payers, including IRS rules, box-by-box reporting, deadlines, and filing steps.

What Does Form 1099-OID Report?

OID stands for Original Issue Discount. Form 1099-OID reports original issue discount that a holder of an OID debt instrument must include in income. It must be filed by issuers, brokers, nominees, and other payers reporting OID debt instruments, such as taxable bonds, U.S. Treasury obligations, and tax-exempt obligations.

Form 1099-OID filing requirements apply when the reportable OID is at least $10 in a year. Even when the OID is less than $10, filing is still required if backup withholding was withheld and not refunded, or foreign tax was withheld and paid on OID.

Here are some common reportable situations:

  • Taxable bonds issued at a discount
  • OID on U.S. Treasury obligations
  • Tax-exempt OID on municipal bonds
  • Stripped bonds and coupons
  • Nominee reporting for another owner

Who Must File Form 1099-OID?

Form 1099-OID filing is not only for bond issuers, but also for brokers, custodians, nominees, trustees, and other intermediaries.

The broad categories of filers include:

  • Banks and financial institutions
  • Brokerage and clearing firms
  • Bond issuers
  • Nominees holding debt instruments on behalf of beneficial owners
  • Paying agents and custodians
  • Certain reporting entities, such as WHFITs, WHMTs, REMICs, FASITs, and issuers of CDOs

The filer should confirm the payee’s status to determine whether the payee is exempt from Form 1099-OID reporting. A nominee receives income that belongs to someone else. In this case, the nominee must file a separate Form 1099-OID for the actual owner.

​Form 1099-OID Instructions: Box-by-Box Guide

Form 1099-OID is quite technical, as one instrument can have taxable OID, Treasury OID, bond premium, acquisition premium, market discount, and withholding. A payer should carefully gather information about the filing and review each box before filing. If a wrong box is filled, it can lead to IRS mismatches and corrected returns. Hence, each amount should be correctly classified before filing. Form 1099-OID boxes are explained here:

Form 1099-OID Box What to Report Filing Note
Box 1 – Original Issue Discount Enter the taxable OID allocated to the current year. This is the main box for taxable OID, unless the amount belongs in a more specific OID box.
Box 2 – Other Periodic Interest Report qualified stated interest paid on the same obligation, when it is reported on Form 1099-OID instead of Form 1099-INT. Use this box only when stated interest needs to be shown along with OID on this form.
Box 3 – Early Withdrawal Penalty Show any interest or principal forfeited because the holder withdrew or surrendered the investment before maturity. This helps the recipient identify the penalty amount separately.
Box 4 – Federal Income Tax Withheld Enter any federal income tax withheld, including backup withholding. Filing may still be required even when the OID amount is below the usual reporting threshold if backup withholding was taken.
Box 5 – Market Discount* Report market discount accrued on a covered security with OID during the year. This box applies only when market discount reporting is required for a covered security.
Box 6 – Acquisition Premium* Enter the acquisition premium amount that adjusts taxable OID. This amount helps explain why the taxable OID may be reduced or adjusted.
Box 7 – Description Add the CUSIP number, if available. If there is no CUSIP, include enough details to identify the obligation. This box should make the debt instrument clear to the recipient and the IRS.
Box 8 – Original Issue Discount on U.S. Treasury Obligations Report OID from U.S. Treasury obligations. Do not combine this amount with other taxable OID in Box 1.
Box 9 – Investment Expenses Report the holder’s share of investment expenses, such as those tied to single-class REMICs. Use this box only when investment expense reporting applies.
Box 10 – Bond Premium* Enter bond premium amortization, if applicable. This can affect how the recipient reports interest or OID income.
Box 11 – Tax-Exempt OID Report tax-exempt OID, such as reportable OID from certain municipal obligations. Tax-exempt does not always mean “not reported.” Use this box when the reporting rules apply.
Boxes 12–14 – State Information Complete these boxes when state reporting details apply, such as state tax withheld, state ID number, or state income information. Fill these only when state-level reporting information is needed.

A box-by-box review helps payers place each amount correctly, reduce form errors, and avoid unnecessary corrections.

Note: Boxes 5, 6, and 10 generally apply to covered securities. For noncovered securities, brokers and payers are not required to report market discount, acquisition premium, or bond premium amortization to the IRS.

How to Complete Form 1099-OID?

A strong filing process includes pre-filing preparation that starts well before year-end. Each instrument should be reviewed in detail, and the payer should confirm the payee details and reportable OID before the deadline.

Here are the steps in a Form 1099-OID filing process:

The first step is to collect the payee’s legal name, TIN, and Form W-9 details before preparing the return. Any missing or invalid TINs should be reviewed early because they may affect backup withholding.

Next, identify whether the obligation produced OID, stated interest, or both. The OID should also be separated by category, such as taxable OID, tax-exempt OID, or OID on U.S. Treasury obligations.

After that, calculate the annual reportable amounts and apply any related adjustments. Follow the Form 1099-OID instructions closely when placing each amount in the correct box.

Finally, add account numbers when required, furnish recipient statements, and file with the IRS on time, preferably before the 1099-OID deadlines.

The above workflow helps reduce errors, data duplication, IRS notices, and the need for corrected returns. It also reduces recipient confusion, especially when the payer deals with multiple fixed-income instruments.

Filing Deadlines and Electronic Filing Rules

Filing Requirement Standard Deadline Due Date for 2026 Returns What Payers Should Know
Recipient copy January 31 February 1, 2027 Give the recipient their Form 1099-OID copy by this date. The deadline moves because January 31, 2027, falls on a Sunday.
Paper filing with the IRS February 28 March 1, 2027 Use this deadline only if filing on paper. The date moves because February 28, 2027, falls on a Sunday.
Electronic filing with the IRS March 31 March 31, 2027 eFiled 1099-OID returns are due by this date. No weekend adjustment is needed for 2027.

Tip: Form 1099-OID deadlines should be checked each year because IRS due dates shift when the statutory deadline falls on a weekend or legal holiday.

Electronic filing is mandatory for payers filing 10 or more aggregated information returns. This rule applies across all covered information returns, not just Form 1099-OID.

A compliant process should also include timely delivery to the recipient, proper e-delivery consent, and retention of filing and calculation records.

Real-Life Scenarios

Scenario Reporting Result Correct Form & Box
A corporate bond was issued at a discount, and the holder has $50 in taxable OID for the year. Report the OID because it meets the filing threshold. Form 1099-OID, Box 1
A U.S. Treasury obligation generated $32 in OID. Filing is required, but the amount belongs in the Treasury obligations box. Form 1099-OID, Box 8
A tax-exempt municipal bond has reportable OID for the tax year. The payer still reports the OID, even though the obligation is tax-exempt. Form 1099-OID, Box 11
The debt instrument paid stated interest and also produced OID. Report the OID in the applicable OID box, and report the stated interest separately. Form 1099-OID, applicable OID box and Box 2
The holder has only $9 in OID, but backup withholding was withheld and not refunded. A return is still required because backup withholding was taken. Form 1099-OID, applicable OID box and Box 4

FAQs

1. What is the standard Form 1099-OID filing threshold?

The standard threshold that triggers Form 1099-OID filing is a reportable OID of $10 or more for the year. However, filing is mandatory at even lower dollar amounts if there was backup withholding which was not refunded, or if foreign tax was withheld and paid on OID below $10.

2. Who must file Form 1099-OID?

Issuers, brokers, nominees, middlemen, and other payers must file Form 1099-OID when they have reportable OID.

3. Can a payer report stated interest and OID on the same form?

Yes. Qualified stated interest on the same obligation may be reported in Box 2 of Form 1099-OID, while the OID is reported in Box 1, Box 8, or Box 11 as applicable.

4. Does tax-exempt OID still require Form 1099-OID?

Yes. Box 11 of Form 1099-OID reports tax-exempt OID.

5. Do nominees have to file Form 1099-OID?

Yes. A nominee recipient must file a separate Form 1099-OID for each beneficial owner for that owner’s share of the reportable OID.

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