Form 1099-OID Original Issue Discount Checklist
Zero-coupon bonds, discounted notes, certificates of deposit, Treasury inflation-protected securities, REMIC interests, and other debt instruments can create taxable interest before a cash coupon arrives. This checklist turns Form 1099-OID into a review workflow before original issue discount, Treasury OID, acquisition premium, market discount, tax-exempt OID, and withholding flow into a taxable-account model.
Last reviewed: June 16, 2026
Four checks before trusting an OID statement
OID is interest
IRS Publication 1212 defines original issue discount as a form of interest: the excess of a debt instrument's stated redemption price at maturity over its issue price.
Short-term obligations differ
IRS instructions say U.S. Savings Bond interest and OID on obligations with a term of 1 year or less are reported on Form 1099-INT, not Form 1099-OID.
Treasury OID is separate
The instructions identify box 8 as OID on U.S. Treasury obligations and say it is not included in box 1.
Premium and market discount can change the model
Form 1099-OID uses separate boxes for market discount, acquisition premium, bond premium, and tax-exempt OID, so the cash-yield model should not collapse every box into one interest number.
Form 1099-OID review workflow
Confirm why Form 1099-OID was issued
The IRS says Form 1099-OID is filed when OID includible in gross income is at least $10, when foreign tax on OID was withheld and paid, or when federal backup withholding was withheld and not refunded even if OID is less than $10.
Open source: IRS about Form 1099-OIDIdentify the debt instrument before modeling the amount
The IRS instructions list issuers, CDs with OID and a term of more than 1 year, other deposit arrangements, brokers or middlemen holding OID obligations as nominee, WHFIT or WHMT trustees, REMICs, FASIT holders, and CDO issuers among the parties that may have Form 1099-OID filing obligations.
Open source: IRS instructions for Forms 1099-INT and 1099-OIDDo not move short-term discount obligations to Form 1099-OID
IRS instructions say to report interest on U.S. Savings Bonds on Form 1099-INT and to report OID on obligations with a term of 1 year or less on Form 1099-INT. A bond workflow should separate short-term discount reporting from long-term OID reporting.
Open source: IRS instructions for Forms 1099-INT and 1099-OIDTreat box 1 as taxable OID, not coupon cash
Form 1099-OID recipient instructions say box 1 shows OID on a taxable obligation for the part of the year the investor owned it and that the amount is reported as interest income, while also warning that the correct figure can depend on the instrument and acquisition facts.
Open source: IRS Form 1099-OID recipient instructionsKeep Treasury OID out of box 1
IRS instructions say box 8 reports OID on U.S. Treasury obligations for the period owned, should not be included in box 1, and may be negative for a TIPS deflation adjustment.
Open source: IRS instructions for Forms 1099-INT and 1099-OIDCheck acquisition premium before adjusting OID
The instructions say box 6 reports acquisition premium amortization for a covered security, but if a net amount of OID is reported in box 1, 8, or 11, box 6 is left blank. That means the same-looking OID statement can already be net or can require a separate premium review.
Open source: IRS instructions for Forms 1099-INT and 1099-OIDSeparate market discount, bond premium, and tax-exempt OID
Form 1099-OID has separate boxes for market discount, acquisition premium, bond premium, and tax-exempt OID. The recipient instructions say market discount on a tax-exempt security is included in taxable income as interest income, while tax-exempt OID is handled separately.
Open source: IRS Form 1099-OID recipient instructionsUse Publication 1212 as a lookup aid, not a substitute for records
IRS Publication 1212 says OID tables help brokers identify publicly offered OID debt instruments and help owners determine how much OID to report, but it also says table information generally has not been verified by the IRS and can change on examination.
Open source: IRS Publication 1212Check whether Schedule B is involved
IRS Schedule B guidance says the schedule is used for taxable interest and ordinary dividends above $1,500 and for several bond-related situations, including OID adjustments and amortizable bond premium.
Open source: IRS about Schedule B
Official sources used
IRS about Form 1099-OID
Explains the main Form 1099-OID filing triggers, including the $10 OID threshold, foreign tax paid, and backup withholding.
IRS instructions for Forms 1099-INT and 1099-OID
Explains OID reporting, issuer and middleman obligations, short-term obligation treatment, Treasury OID, market discount, acquisition premium, bond premium, and tax-exempt OID boxes.
IRS Form 1099-OID
Shows the recipient-facing box labels and recipient instructions for original issue discount, other periodic interest, early withdrawal penalties, withholding, premium, Treasury OID, and tax-exempt OID.
IRS Publication 1212
Explains how OID tables are used by brokers, middlemen, and owners of publicly offered OID debt instruments.
IRS about Publication 1212
Summarizes Publication 1212's purpose and recent OID table developments.
IRS about Schedule B
Explains when Schedule B is used for interest, dividends, OID adjustments, bond premium, nominee interest, and foreign account questions.
Form 1099-OID FAQ
Is OID the same thing as cash interest?
No. IRS Publication 1212 defines OID as a form of interest based on the difference between stated redemption price at maturity and issue price. It can be taxable over the life of the obligation even when the cash coupon pattern is different.
Does Treasury OID go in the same model field as box 1?
Not automatically. IRS instructions say box 8 reports OID on U.S. Treasury obligations and is not included in box 1, so the model should keep Treasury OID separate from ordinary taxable OID before state-tax assumptions are applied.
Why can box 6 be blank when acquisition premium exists?
IRS instructions say box 6 is left blank if a net amount of OID is reported in box 1, 8, or 11. A blank box 6 can therefore mean the payer reported a net OID amount, not necessarily that acquisition premium is irrelevant.
This page is general investor education, not tax advice, filing advice, legal advice, or a recommendation about any tax position. OID reporting can depend on issue price, acquisition price, holding period, covered-security status, acquisition premium, market discount elections, Treasury obligations, tax-exempt obligations, REMIC/CDO reporting, nominee status, and taxpayer records.
Continue to the Form 1099-INT interest income checklist
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