The Retirement Income Gap Is a Moving Target

The retirement income gap is often presented as a simple calculation.

Projected income versus projected expenses.

That approach creates a false sense of precision.

In practice, the gap is dynamic. It shifts with inflation, longevity, healthcare costs, and market conditions. Small changes in assumptions can materially alter long-term outcomes.

Traditional planning methods—such as estimating a percentage of pre-retirement income—provide a baseline. But they do not capture variability.

Inflation alone can materially increase required income over time. Longevity extends the duration of withdrawals. Market sequencing introduces path dependency.

The result is that the income gap is not a fixed number. It is a range of potential outcomes.

The common mistake is building a plan around a single scenario. That approach assumes stability in variables that are inherently unstable.

A more durable approach reframes the problem. Instead of solving for a number, the objective becomes managing uncertainty.

This requires structuring income sources with different risk characteristics, maintaining liquidity to avoid forced decisions, and coordinating withdrawals with the broader balance sheet.

For physicians, founders, and executives, the income gap can be obscured by concentrated or illiquid assets. Net worth may appear sufficient while income durability remains uncertain.

Clarity comes from distinguishing between assets that generate income and those that require conversion.

The retirement income gap is not solved at a single point in time. It is managed continuously.

Written by Christi Shell, CWS®, AAMS®, BFA™, CETF®, Managing Director and Private Wealth Strategist at Shell Capital Management, LLC.

To speak with Christi about your financial situation, request a private consultation.

Shell Capital Management, LLC is a registered investment adviser. This material is for informational and educational purposes only and does not constitute investment, legal, or tax advice. Advisory services are only offered to clients or prospective clients where Shell Capital Management, LLC is properly registered or exempt from registration. Any views are as of the date published and may change. Investing involves risk, including the possible loss of principal. Past performance is not indicative of future results.