Immediate vs. Deferred Annuity: What's the Difference?
The word “annuity” covers a surprisingly wide range of products, and one of the first forks in the road is simply a matter of timing: does the income start right away, or does the money grow for years before any payments begin.
The short answer
An immediate annuity converts a lump sum into a stream of payments that typically begins soon after purchase, sometimes within a single month. A deferred annuity instead holds the money in an accumulation phase, growing for years or even decades, before converting into payments at some future date the owner selects. The core difference is timing, not necessarily the underlying investment approach, since both immediate and deferred annuities can be structured in different ways internally.
How an immediate annuity works
With an immediate annuity, a lump sum is exchanged upfront for a series of scheduled payments that starts almost right away. This structure is generally chosen by someone who already has the funds available and wants to convert them into predictable income without a further accumulation period, essentially skipping straight to what’s sometimes called the payout phase. Because payments start quickly, there’s little or no time for the underlying funds to grow before income begins.
How a deferred annuity works
- An accumulation phase first. Money contributed to a deferred annuity sits and potentially grows for a period of time before any payments begin, similar in spirit to how the accumulation phase of any annuity functions before conversion to income.
- A chosen future start date. The owner typically selects, or has some flexibility around, when the payout phase actually begins, which could be many years after the initial contribution.
- Growth potential during deferral. Depending on how the annuity is structured, the underlying value may grow according to a fixed rate, an index, or investment subaccount performance during the deferral period.
Why the timing choice matters
Choosing between immediate and deferred structures is really a question about where someone is in their financial timeline. An immediate annuity suits a scenario where income is needed now, using funds that are otherwise sitting idle. A deferred annuity suits a scenario where income won’t be needed for some years, allowing time for potential growth before annuitizing and converting the value into payments. Neither structure guarantees a particular outcome, and the details of growth, fees, and payout terms vary widely between specific contracts.
Where fixed and variable structures fit in
Both immediate and deferred annuities can further be built as fixed or variable products, which affects how the underlying value behaves, particularly during a deferred annuity’s accumulation phase. The immediate-versus-deferred question and the fixed-versus-variable question are separate decisions that combine to describe a specific contract, rather than two labels for the same thing.
The bottom line
Immediate and deferred annuities solve for different timing needs — one converts a sum into income essentially right away, the other delays that conversion in exchange for a period of potential growth first. Because annuity contracts vary enormously in their specific terms, fees, and guarantees, and because rules around how annuities are taxed can change over time, understanding the general structure is a starting point for evaluating any specific contract, not a substitute for reading its terms closely.