A bond issue date is the first settlement date on which a substantial amount of the securities in an issue is sold to investors.1eCFR. 26 CFR 1.1275-2 – Special Rules Relating to Debt Instruments It’s the day the bond officially exists, the issuer receives the sale proceeds, and the clock starts on nearly every calculation attached to the security: interest accrual, original issue discount, call protection, and the tax reporting that follows.
What the Issue Date Controls
Three things trace back to the issue date.
First, the issue price. For a publicly offered bond, the issue price is the initial offering price at which a substantial amount of the debt instruments was sold to the public.2Office of the Law Revision Counsel. 26 USC 1273 – Determination of Amount of Original Issue Discount That price, set on the issue date, is what the IRS uses to measure any original issue discount against face value.
Second, the interest schedule. Most bonds pay semi-annually on dates derived from the maturity. A bond maturing June 15 pays every June 15 and December 15, and the first of those payments is measured from when interest began accruing at issuance.
Third, tax reporting. If the issue date is wrong on your records, the discount amortization schedule is wrong, and so is the interest income reported on your return.
Dated Date vs. Issue Date
Interest doesn’t always start accruing on the issue date. It starts on the dated date, which is the date from which interest on a new issue begins to accrue.3Municipal Securities Rulemaking Board. MSRB Glossary of Municipal Securities Terms Usually the dated date and the issue date are the same day. For municipal bonds they sometimes aren’t.
When the dated date falls before the issue date, buyers at the initial offering pay accrued interest for the gap between the two. When the dated date falls after the issue date, interest simply starts later. Either way, the dated date runs the interest clock; the issue date runs delivery, settlement, and tax calculations like OID. Treating them as identical when they’re not produces yield errors and misstated income.
How the First Coupon Works
The first interest payment on a new bond doesn’t always cover a full six months. When the issue date falls less than six months before the first scheduled payment, the first coupon is short and pays less than a standard coupon. When it falls more than six months before, the first coupon is long and pays more. These odd first coupons show up in the offering price, because the initial buyer is getting either less or more interest than a normal period generates. From the second payment forward, every coupon covers a standard period.
Buying Between Coupon Dates
If you buy a bond in the secondary market between payment dates, you owe the seller accrued interest built up since the last coupon. That amount is added to your purchase price at settlement. When the next coupon arrives, you receive the whole period’s interest, including the portion that economically belonged to the seller. The IRS treats the accrued interest you paid as a return of capital, not income, so you subtract it when reporting interest.4Internal Revenue Service. Publication 550 – Investment Income and Expenses Skip that subtraction and you’ll pay tax on interest you never actually earned.
The Issue Date and Original Issue Discount
When a bond’s face value at maturity exceeds its issue price, the difference is original issue discount. A $1,000 bond issued at $950 has $50 of OID.2Office of the Law Revision Counsel. 26 USC 1273 – Determination of Amount of Original Issue Discount You don’t wait until maturity to report that $50. A portion accrues each year on a constant-yield basis, and the daily portions of that discount are included in your gross income for every day you hold the bond during the tax year.5Office of the Law Revision Counsel. 26 USC 1272 – Current Inclusion in Income of Original Issue Discount The OID income shows up on your return even though no cash has arrived.
If the OID accruing to you during the year is $10 or more, the issuer or your broker sends a Form 1099-OID. The form breaks out taxable OID, qualified stated interest, and, for Treasury obligations, the OID amount that may be exempt from state tax.6Internal Revenue Service. Instructions for Forms 1099-INT and 1099-OID Buying an OID bond in the secondary market above its adjusted issue price creates acquisition premium that offsets part of the OID inclusion; Publication 550 covers how to report it.4Internal Revenue Service. Publication 550 – Investment Income and Expenses
Where to Find the Issue Date
The issue date lives in the primary offering documents created when the bond is first sold. For corporate bonds, check the prospectus or trust indenture filed with the SEC. For municipal bonds, check the Official Statement, which also carries credit ratings, repayment sources, and legal terms.7Internal Revenue Service. Understanding Bond Documents
On a brokerage statement or trade confirmation, the issue date usually sits near the CUSIP number, the nine-character code that uniquely identifies the security. Confirm the CUSIP before relying on any date. A single issuer may have dozens of outstanding series, each with its own issue date, coupon, and maturity, and a wrong CUSIP points you at the wrong bond.
Trade Date, Settlement Date, and Issue Date
A secondary-market purchase has its own timeline. The trade date is when you and the seller agree on price and yield. Ownership and money change hands on the settlement date, which is one business day after the trade under the T+1 cycle in effect since May 28, 2024.8FINRA. Understanding Settlement Cycles: What Does T+1 Mean for You? Neither the trade date nor the settlement date replaces the issue date. The issue date remains the fixed origin point. Accrued interest on your trade is calculated from the last coupon (or from the dated date if no coupon has yet been paid) through settlement.
Treasury Reopenings
The Treasury regularly sells additional amounts of previously issued securities through reopening auctions. A reopened note or bond carries the same CUSIP, maturity date, and interest rate as the original.9TreasuryDirect. Schedule of Auction Reopenings But the reopened tranche gets its own issue date and typically its own price, reflecting market yields at the time of the reopening.
That distinction matters for taxes. Because the reopened tranche has a different issue price but the same face value, its OID or premium differs from the original tranche even though the bonds are otherwise identical. If you buy at a reopening, track the issue date and issue price of your tranche, not the original auction’s figures. The Treasury regulation defining issue date as the first settlement date on which a substantial amount is sold applies independently to each reopening.1eCFR. 26 CFR 1.1275-2 – Special Rules Relating to Debt Instruments
When-Issued Trading
A new Treasury security can trade before it has an issue date. When-issued trading starts after the Treasury announces a new security and runs through the auction up to the issue date. During that window, dealers and investors trade the security on a forward basis, agreeing on a price for bonds that don’t yet exist in final form. All those trades settle on the issue date itself, which is when the security is actually delivered and cash moves. A when-issued trade locks in your price, but nothing settles until issuance; between the trade and that date, the position shows as pending.