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The insurer's cut

Spread (margin / asset fee)

A spread, also called a margin or asset fee, is a set percentage a fixed index annuity subtracts from an index's gain before crediting the rest to you. If the index rises 10% and the spread is 3%, you are credited 7%. It is another lever insurers use in place of, or alongside, a cap.

In plain terms: A percentage the insurer keeps off the top of the index's gain before paying you the rest.

In depth

A spread is like a service charge skimmed off the top of the index's gain. The insurer takes its cut first, and you keep what is left. So with a 4% spread, an index gain of 12% credits you 8%, while a flat or down year credits you zero because the floor still protects your principal. Spreads change and vary by product and state.

Why it matters

A spread quietly shapes your return the same way a cap does, just from the other direction. In a strong market a spread can cost you more than a cap; in a modest one it can cost less. Know which lever your product uses.

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Frequently asked questions

Is a spread the same as a fee?
In effect, yes. A spread reduces your credited interest, so it works like a fee on your gains. The difference is that it comes out of index performance rather than being deducted from your account value the way a rider fee is.
Which is better, a cap or a spread?
Neither is automatically better; it depends on how the index performs. A spread only reduces positive returns, so in a flat year it costs nothing, while in a strong year it can take a larger bite than a cap. Compare both against likely scenarios.
Keep reading. Cap rate · Participation rate · Rider
Reviewed by AnnuaLife editorial. Definitions are educational and not investment, tax, or legal advice. Figures are examples as of July 30, 2026; rates and product terms vary by state and change. Back to the full glossary
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