Reference
Annuity Glossary
Plain-English definitions for annuity and FIA contract terms — the vocabulary you need to read a prospectus, evaluate a carrier illustration, or ask better questions of your advisor.
A
Accumulation Value
The accumulation value (also called the account value or contract value) is the running balance of your annuity at any given point before income begins. It starts at your initial premium, grows each year based on credited interest or investment performance, and is reduced by any withdrawals, rider charges, or policy fees. In a Fixed Indexed Annuity, the accumulation value is what captures index-linked credits at each contract anniversary. It is the most important number for understanding how your money is actually growing — and is distinct from benefit base values that may be used solely to calculate rider payouts.
Annual Point-to-Point (Crediting Method)
Annual point-to-point is the most common index crediting method in Fixed Indexed Annuities. It measures the percentage change in an index from the start of a contract year (the "point") to the exact same date one year later (the next "point"), then credits your account with a gain based on that single measurement — subject to any cap, spread, or participation rate in your contract. Interim market moves during the year are irrelevant; only the beginning and ending values count. If the index is down on the anniversary date, you receive 0% for that year (assuming a standard 0% floor), and the measurement resets for the next year. This simplicity makes annual point-to-point easy to understand, but it also means a bad anniversary date can wipe out gains that existed mid-year.
B
Backtested Index Data
Backtested index data refers to historical performance figures generated by retroactively applying an index methodology to past market conditions — rather than reflecting real, live performance. Many proprietary indexes used in FIA products were created recently (some as late as 2021–2023) but show 10+ years of "history" in carrier illustrations by simulating how the index would have performed had it existed. Backtested results are inherently optimistic because the methodology is built with the benefit of hindsight, excluding the slippage, liquidity costs, and behavioral factors present in live markets. Regulatory and academic research consistently shows that live performance of backtested proprietary indexes lags their simulated histories. Consumers should treat any performance period prior to a proprietary index's live date as a model output, not a track record.
Buffer (RILA / Buffered Annuity)
A buffer is a contractually defined layer of downside protection in a Registered Index-Linked Annuity (RILA). Unlike a Fixed Indexed Annuity where your principal is fully protected from index losses, a RILA absorbs the first X% of any negative index return on your behalf — but you bear any loss beyond that threshold. For example, with a 10% buffer and an index that drops 15%, you lose only 5%; if the index drops 8%, you lose nothing. Buffers allow RILAs to offer significantly higher upside participation rates or caps than traditional FIAs, because the carrier transfers a portion of downside risk back to the contract holder. Buffers reset at each crediting term (typically one year) and do not carry over from one period to the next.
C
Cap Rate
The cap rate is the maximum amount of index gain that can be credited to your annuity in a given crediting period, regardless of how much the index actually returned. Under an annual point-to-point strategy with a 10% cap, an index that gains 22% credits you only 10%; a 6% index gain credits you 6%. Cap rates are not fixed for life — most contracts guarantee a minimum cap floor (often 1–2%), but the carrier can adjust the declared cap rate at each renewal. Higher caps generally correspond to lower participation rates or vice versa. Comparing cap rates across carriers requires attention to the underlying index, since a 10% cap on a volatile broad index is very different from a 10% cap on a low-volatility proprietary index that rarely reaches that ceiling.
Credited Interest
Credited interest is the actual dollar amount or percentage added to your annuity's accumulation value at the end of a crediting period, after applying any caps, spreads, participation rates, or fee deductions defined in your contract. In a Fixed Indexed Annuity, credited interest is calculated by measuring index change, applying the contract's crediting method, and applying any constraints — the result is what shows up in your statement. Credited interest cannot be negative under standard FIA contracts (it is floored at 0%), but it can be zero in years when index performance is flat or negative. Once credited, interest typically becomes part of your protected accumulation value and locks in for that period.
D
Death Benefit
The death benefit is the amount paid to your named beneficiary if you die before the annuity is fully paid out. In most deferred annuities, the standard death benefit equals the greater of the accumulation value or the sum of premiums paid (less any prior withdrawals). Some contracts offer enhanced death benefits — such as a step-up to a high-water-mark account value, an annual roll-up percentage, or a guaranteed minimum return — typically as an optional rider for an additional fee. Death benefit provisions often allow beneficiaries to choose between a lump sum, a stretch payout, or continued tax deferral via spousal continuation, and the structure has significant tax and estate planning implications.
Deferred Annuity
A deferred annuity is a contract where premiums are paid (either as a single lump sum or over time) and the contract grows tax-deferred for some accumulation period before income payments begin or full surrender is taken. Deferred annuities can be fixed (MYGA), fixed indexed (FIA), variable, or registered index-linked (RILA), distinguished by how the accumulation value grows during the deferral period. The deferral phase is the primary mechanism for compounding tax-deferred growth, and most deferred annuities include surrender charge schedules that penalize early withdrawals during a defined period — typically 5 to 10 years.
E
Excess Return Index (ER)
An excess return index measures the performance of an underlying asset minus a financing cost — typically the risk-free rate or short-term funding rate. Many proprietary indexes used in Fixed Indexed Annuities are constructed as excess return indexes, which means the headline index level reflects asset returns net of an embedded interest charge. This structural feature is rarely highlighted in carrier illustrations but can meaningfully reduce realized index credits, particularly in low-equity-return environments where the financing drag erodes a substantial fraction of any gains. Recognizing whether an index is total return, price return, or excess return is essential when evaluating projected performance.
F
Fixed Indexed Annuity (FIA)
A Fixed Indexed Annuity is a deferred annuity that credits interest based on the performance of a market index — most commonly the S&P 500 or a proprietary volatility-controlled index — subject to contractual caps, participation rates, or spreads. Principal is protected from market losses by a 0% floor, meaning the accumulation value cannot decrease due to negative index performance, though it can decrease from withdrawals, fees, or rider charges. FIAs occupy a middle ground between fixed annuities (guaranteed but limited returns) and variable annuities (full market exposure with full downside risk). They are popular for risk-averse retirees seeking moderate growth potential without principal exposure, but the wide variation in carrier crediting parameters makes side-by-side analysis essential.
Floor (0% Floor)
The floor is the minimum interest credit you can receive in any crediting period — almost always 0% in standard Fixed Indexed Annuity contracts. The 0% floor is what gives FIAs their principal-protection characteristic: even if the underlying index falls 30% during a crediting year, your accumulation value is credited with 0%, not a loss. The floor does not prevent decreases from rider charges, surrender charges, or withdrawals, but it ensures that index-linked performance cannot reduce your account. Some specialty contracts feature non-zero floors (e.g., 1% guaranteed minimum), but these typically come with significantly lower caps or participation rates.
FIA Illustration
An FIA illustration is a state-required document that projects how a Fixed Indexed Annuity might perform under specified historical or hypothetical conditions. Illustrations typically show a 10-year backtest of the contract's crediting method against past index performance, along with guaranteed minimum and non-guaranteed scenarios. While useful for understanding mechanics, illustrations have well-documented limitations: they often use the highest-performing 10-year window available, rely on backtested proprietary index data, and assume current cap rates remain unchanged for the entire period. NAIC and state regulators have tightened illustration standards in recent years, but consumers should still treat illustration outputs as one data point among many — not a forecast.
G
GLWB (Guaranteed Lifetime Withdrawal Benefit)
A Guaranteed Lifetime Withdrawal Benefit is an optional rider on deferred annuities that guarantees a contractually defined annual withdrawal amount for life, regardless of accumulation value performance. The rider is typically structured around a separate "benefit base" that may grow at a guaranteed roll-up rate during deferral, with a withdrawal percentage applied at the start of income (commonly 4–6%, age-banded). GLWBs are especially attractive in FIAs because they provide income guarantees without requiring annuitization — the contract holder retains access to remaining accumulation value. Rider fees typically range from 0.95% to 1.50% per year of the benefit base, which can compound into a significant cost over a long deferral period.
GMIB (Guaranteed Minimum Income Benefit)
A Guaranteed Minimum Income Benefit is a rider on variable or fixed indexed annuities that guarantees a minimum income stream when the contract is annuitized, even if the accumulation value has declined. Unlike a GLWB, a GMIB requires the contract holder to formally annuitize — converting the accumulation into a fixed income stream — to access the guaranteed payment. GMIBs are less common in modern annuity products than GLWBs because the annuitization requirement is restrictive for many retirees who want continued account flexibility, but they can offer higher guaranteed income rates in exchange for that constraint.
I
Immediate Annuity (SPIA)
A Single Premium Immediate Annuity converts a lump sum into guaranteed income payments that begin within 12 months of purchase. SPIAs are the simplest annuity structure: there is no accumulation phase, no cap rates, no riders — only a payment stream determined by your premium, age, gender, payment option (life only, period certain, joint life, etc.), and current carrier rates. SPIAs are typically priced off long-duration Treasury yields plus a carrier credit spread, so the income they offer rises and falls with interest rates. They are most useful for retirees who need to convert a portion of assets into predictable lifetime income without the complexity or cost of deferred-annuity riders.
Implied Rate of Return (IRR)
The implied rate of return is the effective annualized yield that equates a stream of annuity payments to the original premium paid — essentially the internal rate of return on the contract. For income annuities and annuitized contracts, IRR depends heavily on how long payments continue: a 65-year-old who lives to 90 will earn a much higher IRR than one who dies at 75. The RankMyAnnuity calculator computes IRR using actuarial life expectancy and contract-specific payment schedules, allowing direct comparison to other fixed-income alternatives like Treasuries, CDs, and MYGAs. A high IRR relative to current benchmarks indicates the annuity is competitively priced.
Index Crediting Method
An index crediting method is the contractual formula used to translate index movement into credited interest in a Fixed Indexed Annuity. Common methods include annual point-to-point, monthly point-to-point with cap, monthly averaging, monthly sum, performance trigger, and various term-end measurement strategies. Each method behaves differently across market regimes — point-to-point favors steady upward markets, monthly averaging dampens single-month spikes, and performance triggers pay a fixed amount when the index is positive. Most FIA contracts allow contract holders to allocate among multiple crediting methods and reallocate annually, making the choice of method a recurring decision rather than a one-time selection.
Index Spread (Margin)
The index spread (also called a margin or asset fee) is a percentage subtracted from the index return before crediting interest to your annuity. With a 2% spread and a 10% index gain, your contract is credited 8% (subject to any cap or participation rate). Spreads are typically used as an alternative to caps — a contract may use a high cap with a spread, an unlimited cap with a larger spread, or a moderate cap with no spread. From an analytical perspective, a spread acts as a fixed drag that reduces credited interest in every positive year, while a cap only matters in strong-return years. Comparing spread-based contracts to cap-based contracts requires modeling expected index distributions.
L
Living Benefit Rider
A living benefit rider is an optional contract feature that provides guaranteed payments or guaranteed account values during the contract holder's lifetime, in exchange for an additional annual fee. The two most common forms are the GLWB (Guaranteed Lifetime Withdrawal Benefit) and GMIB (Guaranteed Minimum Income Benefit), though some carriers offer specialized variations like GMABs (accumulation benefits) or hybrid LTC/income riders. Rider fees are typically charged as a percentage of either the accumulation value or the rider's separate benefit base — the latter can grow more aggressively, but the fee compounds against a value the contract holder cannot directly access. Evaluating rider value requires comparing guaranteed income against the cost of the rider over the realistic holding period.
M
MYGA (Multi-Year Guaranteed Annuity)
A Multi-Year Guaranteed Annuity is a fixed annuity that guarantees a specific interest rate for a defined contract period — typically 3, 5, 7, or 10 years. MYGAs function similarly to bank CDs but with two key differences: gains accumulate tax-deferred until withdrawal, and they are issued by insurance companies subject to claims-paying capacity rather than FDIC insurance. MYGA rates fluctuate with broader interest rate trends, particularly long-duration Treasury yields, and competitive rates often exceed those available on bank CDs of comparable duration. Surrender charges typically apply during the rate-guarantee period, and most contracts allow penalty-free withdrawals of 5–10% per year.
P
Participation Rate
The participation rate is the percentage of an index's positive return that is credited to your annuity, before any cap or spread applies. With a 70% participation rate and a 10% index gain, your contract is credited with 7%; if the same contract has a 6% cap, the credit is the lower of those two — 6%. Participation rates can range from 30% to over 100% depending on the index, crediting method, and carrier. Higher participation rates typically appear on uncapped strategies tied to lower-volatility proprietary indexes, while capped strategies tend to use 100% participation on broad indexes. Like cap rates, participation rates are reset at carrier discretion at the end of each crediting period.
Policy Charge / M&E Fee
A policy charge or Mortality & Expense fee is a recurring annual cost deducted from the accumulation value to compensate the carrier for product administration, mortality risk pooling, and ongoing expenses. M&E fees are most prominent in Variable Annuities, where they typically range from 1.00% to 1.40% annually — but FIAs and RILAs may also include nominal policy fees, and rider fees are charged separately. For variable annuities, M&E plus subaccount expenses plus rider charges can compound to 3% or more in total annual cost, materially eroding net returns. Cost transparency varies significantly between carriers, and the FIA Index Calculator and grading methodology on this site explicitly account for these costs.
Premium Bonus
A premium bonus is an upfront credit added to your annuity's initial accumulation value at contract issue, typically expressed as a percentage of the premium paid. Bonuses range from 1% to 15%+ depending on the contract, with larger bonuses generally appearing on contracts with longer surrender periods, lower cap rates, or vesting schedules that recapture the bonus if the contract is surrendered early. From an IRR perspective, a premium bonus is essentially deferred — the carrier has built a cost structure (lower caps, longer surrender periods, vesting) to recoup it over time, so the bonus is rarely "free." A rigorous analysis compares the long-term IRR of bonus contracts against equivalent non-bonus alternatives.
Q
QLAC (Qualified Longevity Annuity Contract)
A Qualified Longevity Annuity Contract is a deferred income annuity purchased with qualified retirement funds (IRA or 401(k)) that allows the contract holder to defer Required Minimum Distributions on the QLAC premium until age 85. QLACs are subject to IRS limits — currently $200,000 (indexed) of total qualified premium across all contracts — and they cannot include cash surrender value, riders, or commutation features that would undermine the longevity-protection design. QLACs are particularly useful for retirees who want guaranteed late-life income, expect to live well beyond average life expectancy, or wish to reduce taxable RMDs in their early-to-mid retirement years.
R
RILA (Registered Index-Linked Annuity)
A Registered Index-Linked Annuity is a hybrid annuity that credits interest based on index performance like an FIA but does not include full principal protection. Instead, RILAs use buffers or floors to provide partial downside protection, allowing carriers to offer higher upside caps or participation rates in exchange for the contract holder accepting some loss exposure. RILAs are registered as securities, so they require sales by representatives with both insurance and securities licenses, and they are subject to SEC disclosure rules in addition to state insurance regulation. Buffers (e.g., 10% buffer) protect against the first X% of loss, while floors (e.g., -10% floor) cap maximum loss at a defined level. RILA structures vary widely between carriers.
S
Spread
See Index Spread (Margin). A spread is a percentage subtracted from index return before credited interest is calculated.
Surrender Charge
A surrender charge is a contractual penalty applied to withdrawals that exceed the annual penalty-free amount during the surrender period — typically the first 5 to 10 years of a deferred annuity. Surrender schedules usually decline over time (e.g., 9% in year 1, 8% in year 2, decreasing to 0% in year 10), and they are designed to compensate the carrier for the upfront commission and administrative costs incurred at policy issue. Surrender charges combine with Market Value Adjustments (MVAs) and any unvested premium bonuses to determine the actual cost of early exit. Liquidity-sensitive buyers must scrutinize the surrender schedule carefully — a long-surrender contract with attractive headline features can become significantly less attractive if early withdrawal becomes necessary.
Surrender Period
The surrender period is the contractually defined window during which surrender charges apply on withdrawals exceeding the penalty-free amount. Surrender periods typically range from 3 to 14 years, with 7- and 10-year structures most common. The length of the surrender period influences pricing across the entire contract: longer periods allow carriers to invest in longer-duration assets and offer better initial guarantees (higher caps, bonus credits, MYGA rates). A mismatch between your liquidity needs and the surrender period is one of the most common annuity suitability problems.
V
Variable Annuity (VA)
A Variable Annuity (VA) is an insurance product that allows the contract holder to allocate premiums among investment subaccounts — essentially mutual fund-like portfolios — and whose value fluctuates directly with market performance. Unlike FIAs, variable annuities offer no inherent floor protection: the account value can decline significantly in a market downturn, though optional guaranteed living or death benefit riders can provide contractual income floors at additional cost. VAs are registered securities requiring agent licensure, and they carry both investment-level expense ratios within subaccounts and insurance-level M&E fees, creating a layered cost structure that can total 2–4% annually. Tax deferral on gains and optional income guarantees are the primary reasons investors choose VAs over direct mutual fund ownership, though the total cost load must be weighed carefully against those benefits.
Volatility-Controlled Index
A volatility-controlled index is designed to maintain a target level of volatility (typically 5–8% annualized) by dynamically allocating between a risky asset (equities, commodities) and a stabilizing asset (cash, short-term bonds) based on realized market volatility. When markets are calm, the index holds more of the risky asset; when markets become turbulent, it shifts toward the stabilizing asset to dampen swings. Carriers license these indexes from banks and investment banks specifically for use in FIA and RILA products because lower volatility makes the options used to fund index credits cheaper to purchase, enabling higher participation rates in illustrations. The trade-off is that volatility-controlled indexes tend to lag standard equity benchmarks during sustained bull markets, as they reduce equity exposure precisely when the market is rising strongly. Most proprietary indexes used in FIA products are some form of volatility-controlled strategy, and their performance is almost always presented with backtested rather than live data.
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Read the explainer →Definitions are for educational purposes only and do not constitute financial, legal, or tax advice. Terms and product features vary by carrier and contract. Consult a licensed professional before making annuity purchasing decisions.