Structured Deposits Explained: Capital Protection With Market-Linked Upside

Structured deposits occupy an unusual space in the investment landscape: they are bank deposits — receiving the protection that classification brings — yet their return is linked to the performance of an equity index or other reference asset rather than a fixed interest rate. For investors seeking capital protection combined with the possibility of equity market participation, they can be a useful tool. Understanding the mechanics, costs, and limitations is essential before committing capital.

What Is a Structured Deposit?

A structured deposit is a deposit placed with a bank for a defined term — typically three to six years — where the return is determined by a pre-specified formula linked to a market reference (most commonly a stock market index such as the FTSE 100, S&P 500, or Eurostoxx 50). At maturity, the investor receives:

• 100% of capital back (the protection element), regardless of market performance.
• A participation in index gains, subject to a cap or participation rate.

If the index has risen over the investment term, the investor receives a proportion of that gain (the "participation rate"). If the index has fallen or gone sideways, the investor simply receives their capital back — no gain, but no loss.

This compares with investing directly in the index, where capital is at risk if markets fall, but where gains are fully captured (net of costs) if markets rise.

FSCS Protection: A Critical Distinction

Structured deposits — when offered by FCA-authorised UK banks and building societies — are classified as deposits rather than investments. This means they benefit from Financial Services Compensation Scheme (FSCS) protection up to £120,000 per depositor per institution (raised from £85,000 on 1 December 2025).

This protection is significant: if the offering bank fails, the FSCS will compensate depositors up to the limit. This contrasts with structured products (notes, bonds) and structured capital-at-risk products (SCARPs), which do not receive FSCS deposit protection and where capital recovery in the event of issuer insolvency depends on the creditor recovery process.

The £120,000 limit is per depositor per institution. An investor with £500,000 to deploy cannot simply place the entire sum in a single structured deposit with one bank and rely on FSCS protection for the full amount — only £120,000 would be protected. Investors with larger sums should either diversify across multiple institutions or accept that the portion above £120,000 relies on the bank's credit quality rather than FSCS.

Pricing Mechanics: What You Are Buying

Understanding what sits inside a structured deposit helps investors evaluate whether the terms offered represent fair value.

The bank constructs the structured deposit using two components:

The bond component: The bank takes a portion of the investor's deposit and uses it to purchase zero-coupon bonds (or holds it as a cash equivalent) that will grow to exactly the original deposit amount by maturity. This is the mechanism that guarantees return of capital.

The option component: The remaining portion of the deposit (reduced by the bank's margin) is used to purchase a call option on the reference index. This call option provides the upside participation if the index rises.

The cost of the option — and therefore the amount of participation rate or cap that can be offered — depends primarily on:

• The time value of options: Longer-dated structured deposits can purchase cheaper-per-year options.
• The level of implied volatility: When volatility is high, options are more expensive, reducing the participation rate; when low, participation rates improve.
• Interest rates: Higher interest rates mean the bond component requires less capital, leaving more for the option, increasing potential participation rates.
• The bank's margin: The bank retains a fee for structuring, distribution, and credit risk, typically 2–4% of the deposit over the term.

From 2022 onwards, rising interest rates materially improved the economics of structured deposits from the investor's perspective — more of the deposit could be directed to the option component, improving participation rates compared with the near-zero rate environment of 2012–2021.

Typical Terms

A typical UK retail structured deposit in 2025/26 might offer:

• 5-year term
• 100% capital protection at maturity
• FTSE 100 participation of 55–70% of index gain (uncapped) or 100% participation up to a 40–50% cap on the index gain

For example: if the FTSE 100 rises 40% over five years and the product offers 60% participation, the investor receives 24% on their original deposit, equivalent to approximately 4.4% per annum compound. If the FTSE 100 falls, they receive their capital back.

These returns should be compared with the alternative: a five-year fixed-rate bond offering, say, 4.5% per annum with full capital protection and no market linkage. In the fixed-rate alternative, the investor knows their return at outset; in the structured deposit, the return is uncertain but linked to equity performance.

Autocall Structured Deposits

Autocall (automatic call) structured deposits add a conditional early maturity feature:

• On each observation date (typically annually), the closing level of the reference index is compared with its level at the start.
• If the index is at or above the starting level on an observation date, the deposit matures early and pays the investor a pre-determined return (the "autocall payment").
• If the index is below the starting level, the deposit continues to the next observation date.
• At the final maturity date, capital is returned in full regardless.

An example: a six-year FTSE 100 autocall structured deposit might pay 9% per annum for each year elapsed if it matures early (so 9% in year 1, 18% in year 2, 27% in year 3, and so on), with 100% capital return if the FTSE 100 has not triggered early maturity and simply returns capital at year six.

Autocall structures are popular because they offer higher potential returns than simple participation products — reflecting that the investor is selling some of the extended optionality (the call feature acts like a short option from the investor's perspective). The trade-off is that the investor is uncertain about the duration of the deposit.

Counterparty Risk Beyond FSCS Limits

For amounts above £120,000, structured deposit investors face the credit risk of the issuing bank. If the bank becomes insolvent during the deposit term:

• The FSCS would compensate up to £120,000.
• The remaining claim would rank as an unsecured deposit claim in the insolvency process.
• Recovery timing and percentage depend on the insolvency outcome — which may be protracted.

For this reason, investors with large sums should pay attention to the credit quality of the issuing institution and consider spreading across multiple institutions rather than concentrating with a single bank.

For deposits above £120,000 in aggregate per institution, structured notes or bonds (without FSCS protection but potentially with enhanced contractual protections) may be a relevant alternative — or simply diversifying the structured deposit counterparties.

Comparison With Fixed-Rate Bonds

Feature	Structured Deposit	Fixed-Rate Savings Bond
Capital protection	100% (to FSCS limit)	100% (to FSCS limit)
Return	Market-linked (uncertain)	Fixed rate (certain)
Upside potential	Yes (subject to participation cap)	No
Liquidity	Typically none before maturity	Often none before maturity
FSCS protection	Yes (to £120k)	Yes (to £120k)
Inflation risk	Partial hedge (equity linkage)	Full (fixed return may be eroded)

The choice between a structured deposit and a fixed-rate bond is fundamentally a view on whether equity market participation is worth the exchange of a guaranteed fixed return for a market-linked variable one.

FCA Classification and Regulatory Treatment

Structured deposits are not specified investments under the Financial Services and Markets Act 2000 and its subsidiary legislation. This means they fall outside the FCA's investment promotion rules in some respects — though the FCA's deposit-taking regulatory regime and consumer duty obligations still apply.

This regulatory position means that structured deposits have historically been accessible through a wider range of distribution channels than equivalent structured capital-at-risk products. However, the FCA has increased scrutiny of structured products sold to retail investors, and firms are expected to ensure suitability and clear disclosure of terms.

Structured deposits involve risks including limited upside participation, illiquidity before maturity, and counterparty risk above FSCS limits. Past performance of equity indices provides no guarantee of future returns. This guide is for informational purposes only and does not constitute financial advice. FSCS protection levels and rules are subject to change; verify current limits at the time of investment. Seek qualified professional advice appropriate to your circumstances.

How Global Investments Can Help

Global Investments can assist HNW investors in evaluating structured deposits alongside other capital-protected and market-linked instruments as part of a diversified income and growth strategy. We provide access to structured deposit programmes from multiple issuing institutions, enabling clients to diversify counterparty risk while maintaining FSCS protection on individual tranches. Our advisory team can compare current structured deposit terms with fixed income alternatives and help you determine the allocation that best suits your risk tolerance and return objectives. Contact our investment team for a current overview of available structured deposit opportunities.