The Overlay Concept
The defining structural feature of a CDA is the overlay: the insurance guarantee sits alongside the investment account rather than inside it. The investor's assets remain in their own account (a brokerage account, managed account, or advisory account) and are not transferred to the insurance company.
(brokerage / managed account)
Overlay — monitors account value
Guaranteed lifetime income begins
This structure is sometimes called an annuity wrapper or insurance overlay. It allows investors to maintain control over their investment assets while adding a layer of insurance protection against outliving those assets.
Step-by-Step Mechanics
Investor opens or designates an investment account
The investor maintains a brokerage, managed, or advisory account. Assets remain in the investor's name and are not transferred to the insurance company.
CDA contract is issued as an overlay
The insurance company issues a CDA contract that is linked to the investment account. The contract establishes the benefit base, the guaranteed withdrawal rate, and the fee structure.
Investor takes withdrawals from the investment account
During the withdrawal phase, the investor draws income from their own investment account, not from the insurance company. Withdrawals must stay within the contracted guaranteed withdrawal amount to preserve the guarantee.
Insurance fee is charged periodically
The insurance company charges a fee (typically an annual percentage of the benefit base or account value) for maintaining the guarantee. This fee reduces the net return on the investment account.
If the account depletes to zero, the insurer pays
If the investment account reaches zero due to withdrawals and/or investment losses, the insurance company begins paying the guaranteed income amount directly to the investor for the remainder of their lifetime.
Benefit Base vs. Account Value
CDA contracts typically track two distinct figures:
Account Value
The actual market value of the investments in the linked account. This is the real money: it fluctuates with market performance and is reduced by withdrawals and fees.
Benefit Base
A notional (not real) figure used to calculate the guaranteed withdrawal amount. The benefit base may grow through step-up provisions that lock in market gains on specified dates, even if the account value later declines.
Example (illustrative only): An investor starts with a $500,000 account value and benefit base. After five years, the account value grows to $650,000. A step-up locks in the benefit base at $650,000. The account then declines to $400,000. The guaranteed withdrawal amount is still calculated on the $650,000 benefit base, not the current $400,000 account value.
Fees
CDA contracts involve multiple layers of fees. Understanding the total cost is essential for evaluating whether a CDA is appropriate.
| Fee Type | Typical Basis | Notes |
|---|---|---|
| Insurance charge (CDA fee) | Annual % of benefit base or account value | The core cost of the guarantee. Varies by product and insurer. |
| Investment management fee | Annual % of account value | Charged by the investment manager or fund. Separate from the CDA fee. |
| Advisory fee | Annual % of account value | If the account is managed by a financial advisor, their fee applies. |
| Surrender charge | Declining % of account value | May apply if the CDA contract is terminated within a specified period. |
Fee ranges vary significantly by product. Always obtain and review the full fee disclosure before purchasing.
Investment Restrictions
Because the insurer bears the risk of paying lifetime income if the account depletes, CDA contracts typically impose restrictions on the underlying investments. Common restrictions include:
- •Investment must be limited to an approved list of funds or asset classes
- •Volatility-managed or risk-controlled investment strategies may be required
- •Equity allocations may be capped (e.g., maximum 60–70% equity)
- •Certain high-risk or illiquid investments may be prohibited
- •The insurer may require rebalancing to approved allocations
Important: Investment restrictions may limit the growth potential of the underlying account. Investors should evaluate whether the approved investment options are consistent with their overall investment objectives.
Surrender and Termination
CDA contracts may include surrender charge periods during which terminating the contract results in a fee. Key points:
- •Surrender charges typically decline over a specified period (e.g., 7–10 years) and eventually reach zero
- •Terminating the CDA contract ends the insurance guarantee; the underlying investment account continues but without the income protection
- •Some contracts allow the guarantee to lapse without a surrender charge after a specified period
- •Death of the insured typically terminates the guarantee; contract terms vary