The strategies for determining how much to spend from a retirement portfolio each year exist along a spectrum:
- At one of the spectrum are strategies that spend a certain dollar amount (or more often, a certain dollar amount, which is then adjusted for inflation each year). The classic “4% rule” strategy is in this category. Strategies like this provide for predictable spending but allow for potential portfolio depletion if investment returns are poor (especially in the early part of retirement).
- At the other end of the spectrum are strategies that spend a percentage of the portfolio each year. Strategies in this category are safer in the sense that they cut spending when portfolio performance is poor and thus reduce/eliminate the possibility of depleting the portfolio. But they can result in dramatic volatility in spending from year to year.
And so there are also hybrid strategies. In an article for Kitces, Michael Woloch recently discussed a “modified RMD” spending strategy. Basing spending on RMDs is a percentage-of-portfolio strategy (though itself a specific subcategory, because the percentage increases each year with age). But here the “modification” is that rather than basing spending on a percentage of the portfolio balance on the final day of the previous year, it’s based on the average portfolio balance of the final days of the last three years, with the result being that spending is less volatile from one year to another.
- Reducing Retirement Income Volatility With The Modified RMD Safe Withdrawal Method from Michael Woloch
Other Recommended Reading
- 10 Rules for Dealing with Uncertainty from Ben Carlson
- Preparing without Predicting from Ben Carlson
- ‘Exploit Every Vulnerability’: Rogue AI Agents Published Passwords and Overrode Anti-virus Software from Robert Booth
- Municipal Water District Loses $3 Million to Phishing Scam from Jack Thurston
- Older Workers Embrace Job Hopping – and It’s Good for Their Retirement Prospects from Geoffrey Sanzenbacher
- The Government Is Trying to Rein in Medicare Advantage Costs. Will It Work? from Alicia Munnell
- IRS Proposes Regulations for Trump Accounts, Pilot Program from Martha Waggoner
- Signal Collapse and the New Proof of Work from Nick Maggiulli
- His Father Lost His Life Savings in a Scam. A Fake Lawyer Offered to Help. from Tara Siegel Bernard (NYT)
Thanks for reading!


Hi. I'm Mike Piper, the author of this blog. I'm 


