What Is a Bond Certificate and How Does It Work?

A bond certificate is the paper document that proves an investor lent money to a corporation or government entity and lays out the terms of repayment: who owes the money, how much, the interest rate, and the date the principal is due back. For most of the twentieth century it was the legal proof of the debt; today nearly all bonds exist only as electronic entries, but old paper certificates still turn up in safe deposit boxes and estates, and they can still represent real money.

What a Bond Certificate Is

At its core, the certificate is a formal IOU. The issuer, whether a city, a state agency, or a corporation, promises to pay interest at set intervals and return the full loan amount on a fixed date. Holding the certificate meant you could collect the interest and eventually redeem the principal.

The loan amount printed on the face is the par value. For most corporate bonds that’s $1,000. Municipal bonds are typically issued in $5,000 minimum denominations, though some municipalities have used $1,000 increments to attract local investors.1Municipal Securities Rulemaking Board. How Are Municipal Bonds Quoted and Priced The printed interest rate is called the coupon rate, a name that comes from the paper coupons once attached to bearer bonds.

What Is Printed on the Certificate

A single engraved page carried every detail a bondholder needed:

  • Issuer name: the full legal name of the borrower.
  • Par value: the principal amount of the loan.
  • Coupon rate: the fixed annual interest rate paid on the par value.
  • Maturity date: when the issuer must repay the full par value.
  • Issue date: when the bond was originally issued and interest began accruing.
  • Payment schedule: the dates interest was due, most commonly semiannually.
  • CUSIP number: a unique nine-character alphanumeric code identifying the specific security for clearance and settlement.2Investor.gov. CUSIP Number
  • Call provisions: if the bond was callable, the earliest date the issuer could redeem it early and the price it would pay.
  • Trustee name: for corporate bonds, the bank or institution serving as indenture trustee and enforcing the terms on behalf of all holders.

Bearer Certificates vs. Registered Certificates

Old certificates come in two very different formats, and the distinction matters if you’re holding one.

Bearer Certificates

A bearer certificate worked like cash. Whoever physically held the paper owned the bond. The issuer kept no record of the buyer or current holder, so if the certificate was lost, stolen, or destroyed, there was no way to prove the debt was yours, and whoever found it could collect.

Interest collection was hands-on. Small paper coupons were attached along the edge of the certificate, each representing one scheduled interest payment. On the payment date you clipped the relevant coupon and presented it to a bank or paying agent for cash.3eCFR. 31 CFR 306.38 – Interest on Bearer Securities That’s where the phrase “clipping coupons” comes from.

The anonymity also made bearer bonds a vehicle for tax evasion. Congress shut the door with the Tax Equity and Fiscal Responsibility Act of 1982, which denied the interest deduction for any bond not issued in registered form and stripped tax-exempt status from unregistered municipal bonds.4Congress.gov. Tax Equity and Fiscal Responsibility Act of 19825Office of the Law Revision Counsel. 26 USC 163 – Interest6Office of the Law Revision Counsel. 26 USC 149 – Bonds Must Be Registered To Be Tax Exempt Legacy bearer bonds issued before 1982 are still out there, but no new ones have been created in over four decades.

Registered Certificates

Registered certificates solved most of that. The issuer or a transfer agent recorded the owner’s name and address, interest payments were mailed directly to the registered owner, and a lost certificate could eventually be replaced because possession alone didn’t establish ownership. The tradeoff was that selling required paperwork to update the issuer’s records rather than simply handing paper across a counter.

Why You Rarely See a Paper Certificate Today

Physical certificates have been almost entirely replaced by book-entry ownership. No paper changes hands. Your ownership is a digital entry on the books of your brokerage firm, and the brokerage firm’s position is recorded at a central depository, most commonly the Depository Trust Company.7The Depository Trust & Clearing Corporation. FAQs: How Issuers Work With DTC Your quarterly brokerage statement is your proof of ownership.8Investor.gov. Investor Bulletin: Holding Your Securities Federal rules require broker-dealers to maintain physical possession or control of all fully paid customer securities, providing a regulatory backstop for the arrangement.9eCFR. 17 CFR 240.15c3-3 – Customer Protection, Reserves and Custody of Securities

What to Do With an Old Paper Certificate

Don’t assume a paper certificate is worthless. Even ones that look ancient can represent real money if the bond hasn’t matured, or if interest and principal went unclaimed.

Start with the certificate itself. The issuer name, CUSIP number, and maturity date tell you whether the bond has already come due and who owed the money. If the issuer was a corporation that merged, was acquired, or went bankrupt, a successor company or bankruptcy trustee may still owe on the bonds. A stock transfer agent or your brokerage firm can often look up the CUSIP to check current status.

For U.S. savings bonds, the Treasury’s Treasury Hunt online search tool was retired in September 2025. Inquiries about unclaimed Treasury securities are now handled through state unclaimed property programs.10TreasuryDirect. Treasury Hunt You can search at unclaimed.org, the site run by the National Association of Unclaimed Property Administrators.

Redeeming Paper Savings Bonds

Paper Series EE and Series I savings bonds can be cashed any time after you’ve owned them for one year. Cashing before five years costs you the last three months of interest. To redeem by mail, complete FS Form 1522. If the bonds are worth more than $1,000, your signature must be certified. There’s no limit on how many you can cash at once, and the Treasury will mail a 1099-INT the following January reporting the interest.11TreasuryDirect. Cashing Savings Bonds

Redeeming Marketable Treasury Securities

Old paper Treasury bonds, notes, and bills that haven’t matured need to be sent to the Treasury for conversion or redemption. Bearer securities should be sent via insured registered mail, along with any attached coupons.12TreasuryDirect. Dealing With Old Paper Treasury Marketable Securities

When Bonds Go Unclaimed

If a bond matures and nobody claims the principal, the money doesn’t vanish. After a dormancy period, typically one to fifteen years depending on the state, the funds escheat to the state treasury. For federal savings bonds, the Treasury will only recognize an escheatment if the bond has reached final maturity and the state physically possesses the certificate and can show it gave proper notice to anyone listed on the bond.13eCFR. 31 CFR Part 315 Subpart O – Escheat and Unclaimed Property Claims by States If you think you’re owed money from a matured bond, your state’s unclaimed property office is where to start.

Replacing a Lost or Destroyed Certificate

The replacement process depends on the type of bond.

For lost, stolen, or destroyed U.S. savings bonds, file FS Form 1048 with the Treasury. Provide whatever details you can: issue dates, face amounts, serial numbers, and the names inscribed. If the bonds were stolen, attach a copy of the police report; if destroyed, send any remaining fragments. You can request a substitute bond or a cash payment, though any replacement EE or I bonds will be reissued electronically through TreasuryDirect rather than as new paper.14TreasuryDirect. Claim for Lost, Stolen, or Destroyed United States Savings Bonds – FS Form 1048

For corporate or municipal bonds, the process runs through the issuer’s transfer agent. You’ll generally need to purchase a surety bond, sometimes called a lost instrument indemnity bond, which protects the issuer if the original certificate turns up later in someone else’s hands. Premiums typically run around 2 to 3 percent of the bond’s market value, with minimum fees that can make small claims disproportionately expensive. Transfer agents are also required to report lost and stolen certificates to a centralized database under SEC rules, which helps prevent a reported certificate from being presented for payment.15eCFR. 17 CFR 240.17Ad-19 – Requirements for Cancellation, Processing, and Storage of Securities Certificates

Tax Reporting on Bond Interest

Whether the bond is paper or a digital entry, the tax treatment of the interest is the same. Any entity that pays you $10 or more in interest during the year must file a Form 1099-INT with the IRS and send you a copy.16Internal Revenue Service. About Form 1099-INT, Interest Income

Legacy bearer bonds have a wrinkle. Because the issuer doesn’t know who owns the bond, there’s no automatic 1099 tied to your name. If you present a coupon or redeem a bearer bond without providing a valid taxpayer identification number, the payer must withhold 24 percent of the payment as federal backup withholding.17Internal Revenue Service. Topic No. 307, Backup Withholding You can claim that withholding as a credit on your return. If a savings bond is reissued and a living owner’s name is removed from the registration, that owner must report all previously unreported interest on the bonds for the year of the reissue.14TreasuryDirect. Claim for Lost, Stolen, or Destroyed United States Savings Bonds – FS Form 1048