Variable Annuity Share Classes Explained — B, C, L, I, O

By Editorial Team

Published April 1, 2026 · Updated May 5, 2026

Two investors can own the same variable annuity from the same carrier with the same subaccounts and one can pay 1.5% more per year than the other. The only difference: the letter on the share class.

Variable annuity share classes are one of the most consequential — and least explained — features of the products. Most consumers understand that a share class exists because the agent told them they were buying a “B-share” or “L-share” contract. Almost none understand what that means for their total costs over time, how it relates to how the agent is compensated, or why they might have been shown one share class instead of another.

The mechanics are borrowed from the mutual fund industry but apply differently in the annuity context. Share class selection affects the mortality and expense charge deducted daily from subaccount assets, the surrender charge schedule that governs early withdrawals, and whether the advisor selling the product receives ongoing trail commissions or a larger upfront payout.

B-Shares: The Industry Standard

More than 75% of variable annuities sold in the United States are B-shares. The structure is straightforward: no upfront sales charge at purchase, a contingent deferred sales charge (CDSC) that applies to surrenders during the surrender period (typically 5–8 years, declining annually to zero), and an ongoing M&E charge in the range of 1.25–1.50% annually.

The agent receives a full upfront commission — typically 4–7% of premium — which the carrier recoups over time through the ongoing M&E charge. The consumer pays no visible cost at purchase, which makes B-shares easy to sell. The cost is embedded in the annual fee and recovered gradually, which makes it easy to overlook.

B-shares are the right structure for investors who plan to hold the contract long-term and want to avoid an upfront cost. Over periods of 10+ years, the ongoing M&E cost on B-shares is generally higher than the A-share equivalent (where you pay upfront and get a lower ongoing cost), but for most consumers the psychological preference for “no upfront charge” makes B-shares the default.

The CDSC schedule on most B-share contracts looks something like: 7% in year 1, declining 1% per year to 0% in year 8. In practice this means the consumer who buys a B-share VA and needs to fully surrender in year 3 will pay a 5% exit cost plus any applicable M&E on the way out.

L-Shares: Shorter Surrender, Higher Ongoing Cost

L-shares were designed for clients who wanted living benefit riders but anticipated needing full liquidity within four to five years. The typical L-share has a 3–4 year surrender period (versus 7–8 for B-shares) and an M&E charge in the range of 1.30–1.75% annually — higher than B-shares to compensate the carrier for the shorter window to recover distribution costs.

The problem with L-shares reveals itself over time. The shorter surrender period appealed to clients and advisors who wanted flexibility. But the elevated M&E is permanent — it does not revert to a lower rate once the surrender period expires. A client who planned to hold for four years but ends up holding for fifteen pays the premium for eleven extra years. That can easily exceed the cost of a B-share’s longer but declining CDSC.

L-shares also became associated with a specific sales practice concern: some advisors sold clients L-shares specifically to allow 1035 exchanges into new L-share contracts after the surrender period expired, generating a new upfront commission while presenting the move as a “flexibility” upgrade. Regulators and the DOL fiduciary rule developments have focused significant attention on this pattern.

C-Shares: Full Liquidity, Permanent Premium

C-share variable annuities eliminate the surrender period entirely. From day one, any amount can be withdrawn without a CDSC. The cost: M&E charges in the 1.50–1.75% range — among the highest of any share class — because the carrier can never recover distribution costs through surrender charges and must bake them entirely into ongoing fees.

C-shares make sense for a narrow client profile: investors who genuinely cannot predict their liquidity needs within any reasonable range. They account for a small minority of variable annuity sales. Most clients can identify a reasonable holding period, and most advisors match that period to a B-share or L-share schedule.

A-Shares: Front-End Load, Lower Ongoing Cost

A-shares mirror the mutual fund front-end load structure. The investor pays a sales charge at purchase — typically 3–5% of premium — and receives a contract with a lower ongoing M&E charge and a shorter or nonexistent surrender period. Breakpoint pricing applies: larger investments attract lower load percentages.

The math favors A-shares over B-shares at longer holding periods and larger investment amounts. A client investing $500,000 who pays a 3% upfront load ($15,000) but saves 0.40% annually in M&E charges recoups the load in approximately three to four years. For a 10-year hold, the A-share is meaningfully cheaper.

Despite this arithmetic, A-shares have never dominated VA sales. The psychological resistance to a visible upfront charge — even one that saves money over time — proved too strong in a distribution environment where competing B-share products show no visible cost at purchase. A-shares are now rarely offered on new products.

I-Shares and O-Shares: The Outliers

I-shares (also called advisory shares or fee-based shares) are designed for use in fee-based investment advisory accounts. They carry no upfront charge, no surrender period, and M&E charges in the 0.10–0.25% range — close to the Fidelity FPRA structure described in a companion article. The advisor does not receive a commission; instead, they charge an advisory fee directly.

I-shares represent the most cost-efficient structure available in the traditional VA market, but they require an advisory relationship and are not available through commission-based channels. Only about 3% of variable annuity sales are fee-based I-shares — a number that reflects how the channel structures incentives more than it reflects what clients actually prefer.

O-shares were a hybrid structure popular in the 1990s and early 2000s, combining a modest upfront charge with a shorter surrender period. They failed to gain sustained market share and are largely absent from current product offerings, though they persist in many older contracts.

The 15-Year Cost Comparison

The following illustrates total fee drag on a $300,000 VA contract with a GLWB rider, held for 15 years. All costs are illustrative and based on typical industry ranges:

Share Class	Total Annual Cost	Annual $ Cost	15-Year Cumulative
B-Share	3.25%	$9,750	$146,250
L-Share	3.45%	$10,350	$155,250
C-Share	3.60%	$10,800	$162,000
I-Share + Advisory Fee	2.75%	$8,250	$123,750

Dollar amounts are static (applied to original $300,000 premium). On a growing account, cost gaps widen proportionally — the 0.70% difference between a B-share and an I-share on a $600,000 accumulated value is $4,200 per year, not $2,100.

What to Ask Before Buying

The share class discussion should happen before contract selection, not after. Ask your advisor:

1. What share class is this contract, and why was it recommended over other share classes from the same carrier?
2. What is the total annual cost including M&E, administrative fees, subaccount expenses, and any rider charges?
3. What commission are you receiving on this sale, and is it higher under this share class than alternatives?
4. Is an I-share or advisory version of this product available?

An advisor operating under a fiduciary standard is required to put your interest above their own compensation when recommending a share class. An advisor operating under the suitability standard is not held to that same requirement. Knowing which standard applies to your advisor is relevant context for evaluating the share class recommendation you receive.