Optimal Finance Daily - Financial Independence and Money Advice

3499: [Part 1] How to Model the Retirement Income Gap by Darrow Kirkpatrick of Can I Retire Yet

25 snips
Mar 22, 2026
They challenge the old steady-paycheck retirement story and explain why real retirements are often uneven. The conversation covers layoffs, delayed Social Security, and staggered spousal timelines as causes of income gaps. It highlights cash-flow versus present-value modeling and walks through building year-by-year financial simulations using spreadsheets or dedicated software.
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INSIGHT

Textbook Retirement Is A Convenient Fiction

  • The textbook retirement story is a convenient fiction that often doesn't match modern retiree realities.
  • Boomers and Gen X/Y face layoffs, early retirement, deferred Social Security, or staggered spousal benefits that break the steady paycheck-then-pension model.
INSIGHT

Don't Subtract Guaranteed Income As A Fixed Offset

  • Simple subtraction of guaranteed income from expenses often fails when income changes over time.
  • You must model changing income streams (deferred Social Security, staggered spousal benefits) rather than rely on a single retirement number.
ADVICE

Build Your Own Retirement Model First

  • Try building your own retirement model before hiring a planner so you can tweak inputs and respond to changes quickly.
  • Doing the math yourself gives you control and lets you answer new questions without scheduling a pro.
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