What Are Structured Notes? Types, Risks, and Fees

A structured note is a debt security issued by a bank whose payout is tied to the performance of an outside asset, such as a stock index, an individual stock, a commodity, or an interest rate. Instead of paying a fixed coupon like a traditional bond, the note uses a formula set at issuance to calculate what you receive at maturity based on how that linked asset moved. The bank builds each note by combining a bond component with one or more derivatives, which lets it offer customized payoffs but also puts the note in a gray zone between bonds and options where the risks are harder to see.

How a Structured Note Is Built

Every structured note has two pieces working together. The first is a debt component, often a zero-coupon bond that the issuer buys at a discount and holds until it matures at face value. This piece is what returns your principal, or a portion of it, at the end of the term. The second piece is a derivative, typically an option contract, that creates the link to the outside asset. Buy a note tied to the S&P 500 and the derivative gives you exposure to the index’s movement without owning any of the underlying stocks.

The split between these two components sets the note’s risk profile. Heavy principal protection means more money goes into the bond portion, leaving less for derivatives and capping your upside. A note built for aggressive growth flips the ratio, spending more on options to amplify returns while thinning the safety net. That balance is fixed at issuance and spelled out in the prospectus supplement.

The Main Types You’ll Encounter

Structured notes come in several broad flavors, each built for a different goal. The risk you take on varies dramatically depending on the type.

Principal-Protected Notes

These notes promise to return your full initial investment at maturity regardless of how the linked asset performs. The tradeoff is a capped or reduced upside through a participation rate. If the note offers 80% participation in the S&P 500’s gains, you receive 80 cents for every dollar the index rose. Maturities tend to run long, sometimes ten years or more, because the issuer needs time for the bond component to grow back to par. The protection only applies if you hold to maturity and the issuer stays solvent.¹

Yield Enhancement Notes

These pay periodic coupons above what a traditional bond of similar maturity would offer. Your principal is at risk in exchange. If the linked asset drops below a specified barrier, you could get back significantly less than you invested. The extra coupon is compensation for selling downside protection to the issuer.

Growth Notes

Growth notes skip periodic income and promise a payout at maturity that amplifies positive performance of the linked asset. A note might offer 1.5 times the index return, subject to a cap. If the index gains 20% and the cap is 25%, you receive 25%. If the index is flat or negative, you might get nothing beyond your principal, or you might lose some of it, depending on the specific terms.

Reverse Convertible Notes

These are among the riskiest varieties for retail investors. A reverse convertible pays an above-market coupon, but the issuer holds the right to repay your principal in depreciated shares of the linked stock rather than cash. Conversion gets triggered when the stock falls below a knock-in level, often set 20% to 30% below the starting price. If the stock drops through that level and stays down, you could receive shares worth far less than your original investment. Coupon payments offset some of that loss, but in a steep decline the math does not come close to making you whole.²

Autocallable Notes

Some notes include an automatic call feature that forces early redemption if the linked asset hits a specified price on a scheduled observation date. When the trigger is met, you get your principal back plus a predetermined coupon and the note ends, sometimes just months into its term. Autocallables can offer attractive coupons, but the early call returns your money right when the market is doing well, and you lose the remaining upside. If the trigger is never met, you hold the note to maturity and face whatever downside terms apply.¹

What the Note Tracks

The linked asset, sometimes called the reference asset or underlying, is whatever drives the payout calculation. Common choices include broad equity indexes like the S&P 500 or the Russell 2000, individual stocks, foreign currency exchange rates, commodities like gold, and interest rate benchmarks such as the Secured Overnight Financing Rate. You never actually own the linked asset. The embedded derivative tracks its price changes, and the note’s formula translates those changes into your payout.

One detail trips up investors regularly. Notes linked to equity indexes almost always use the price return version of the index rather than the total return version, so dividends paid by companies in the index are not included in your return. For something like the S&P 500, dividends historically account for a meaningful chunk of total returns, and their absence quietly reduces what you earn compared with holding an index fund directly.

Maturity, Buffers, and Barriers

Structured notes have a fixed maturity date, typically one to five years, though principal-protected versions can run considerably longer. The final payout depends on where the linked asset’s price lands relative to levels defined at issuance.¹

Two terms show up in most offering documents, and confusing them is expensive:

A buffer means the issuer absorbs a set percentage of losses. With a 10% buffer, if the linked index drops 15%, you bear only the 5% loss beyond the buffer.
A barrier is a trigger level. Cross it and you are exposed to the full decline. With a 30% barrier, if the index falls 35%, you typically lose the entire 35%, not just the 5% beyond the barrier.

Buffers cushion from the top down. Barriers are all-or-nothing. Two notes with nearly identical term sheets can produce wildly different outcomes at maturity based on this single feature, and the payout formula does not change once the note is issued.

Credit Risk and the Issuer’s Promise

This is the part that separates structured notes from most other investments. When you buy one, you are lending money to the issuing bank. Structured notes are unsecured debt obligations, which means the promise to pay you back depends entirely on that institution’s ability to honor its debts. You have no claim on any specific assets the bank holds and no ownership stake in the bank itself.³

If the issuing bank goes bankrupt, you become a general creditor standing in line with the bank’s other unsecured bondholders. Whatever principal protection or upside the note promised becomes irrelevant because the obligation behind it has failed. This is not theoretical. When Lehman Brothers collapsed in September 2008, the firm had more than $8 billion in U.S. dollar-denominated structured notes outstanding. Many had been marketed as conservative investments. Within weeks of the bankruptcy filing they were trading below ten cents on the dollar. Investors who thought they owned a note linked to an index actually owned a claim against an insolvent bank.

Structured notes are not covered by FDIC deposit insurance, even when sold by a bank that offers FDIC-insured accounts. FDIC protection applies to deposit accounts, not investment products.⁴ SIPC coverage does not help either, because SIPC protects against broker-dealer failure, not against the decline or default of a security you hold.

Fees Baked Into the Price

Structured notes carry costs that are less visible than the expense ratio on a mutual fund. The issuer builds its profit margin, hedging costs, and distribution fees directly into the note’s structure. The estimated fair value of a typical structured note on the day it is issued is therefore less than what you paid. Issuers that disclose this gap have reported estimated values ranging roughly from $920 to $980 per $1,000 of face value, meaning you start out 2% to 8% underwater before the linked asset moves a single point.

This embedded cost does not appear as a separate line item on your statement. It is baked into the terms: a slightly lower participation rate, a tighter cap on gains, or a smaller buffer than the issuer could otherwise afford to offer. The sales commission paid to the broker comes out of this same pool. Because these costs are structural rather than explicit, comparing the true expense of a structured note against an index fund or ETF takes more work than most investors expect.

Selling Before Maturity

Structured notes are designed to be held to maturity. They are generally not listed on any exchange, and no guaranteed secondary market exists. If you need your money before maturity, your options are limited. The issuing bank’s broker-dealer affiliate might offer to buy the note back, but it has no obligation to do so, and any price it quotes will reflect current market conditions, remaining time to maturity, and the cost of unwinding the embedded derivatives.³

Selling early almost always results in a loss relative to what you paid, even on a note with principal protection. The protection only kicks in at maturity. Sell a ten-year principal-protected note in year three and you could receive well below face value. Rising interest rates make this worse, because the bond component inside your note is then worth less, dragging down the resale price further.¹

How Structured Notes Are Taxed

The tax rules for structured notes are genuinely complicated, and getting them wrong can mean an unexpected bill in April. Many structured notes are classified as contingent payment debt instruments under IRS rules. If yours falls into that category, you must report original issue discount (OID) as taxable income each year you hold the note, even though you have not received any cash payment. The issuer sets a comparable yield and builds a projected payment schedule at issuance, and you accrue income against that schedule annually.⁵

If actual payments differ from the projected schedule, you make positive or negative adjustments in the year the difference becomes known. A net positive adjustment is treated as additional OID income. A net negative adjustment offsets your OID for that year, and any excess can be claimed as an ordinary loss up to the amount of OID you included in income in prior years.

The character of your gain at sale or maturity is unusual too. For contingent payment debt instruments, gain is treated as ordinary income rather than capital gain, even after years of holding. Losses are ordinary to the extent of your prior OID inclusions, with any remaining loss treated as capital loss if the note was a capital asset.⁶

Not every structured note gets this treatment. Some qualify under different rules depending on specific terms. Given the complexity, having a tax professional review the classification before you buy is worth the cost.

Questions to Ask Before Buying

Structured notes are not inherently good or bad. They fill a legitimate niche for investors who want a payoff profile that plain-vanilla stocks and bonds cannot deliver, such as downside protection with partial equity upside, or above-market coupons on a short horizon. The complexity and embedded costs make it easy to end up in a note that does not actually serve you better than simpler alternatives.

A few questions worth asking before you buy. Could you achieve a similar outcome more cheaply with an index fund and a separate options strategy? Do you understand what happens to your money if the linked asset drops 40%? Can you genuinely hold this note to maturity without needing the cash? Have you actually evaluated the issuer’s credit risk, or did you assume a big bank name means safety? If a broker cannot clearly explain how the return is calculated and what scenarios would cause you to lose money, that is reason enough to walk away.³

1
FINRA.org. Understanding Structured Notes With Principal Protection
2
FINRA.org. Reverse Convertibles: Complex Investments
3
SEC. Investor Bulletin: Structured Notes
4
HelpWithMyBank.gov. Structured Notes
5
Internal Revenue Service. Guide to Original Issue Discount (OID) Instruments
6
Internal Revenue Service. Publication 550: Investment Income and Expenses