In your 20s and 30s: build the foundation.
Time is the most valuable input retirement planning has, and you can't make more of it. The biggest moves in this stage are simple but consequential: contribute enough to your employer plan to capture the full match, build a Roth account if you're eligible, automate increases when raises happen, and avoid lifestyle creep that erodes the savings rate. The financial moves matter, but the discipline you build in this stage matters more.
In your 40s and 50s: acceleration and clarity.
Earnings tend to peak. Children's education costs and aging-parent considerations may compress cash flow. This is where having a written plan starts to matter visibly, modeling whether retirement is on track, whether catch-up contributions make sense, and whether the mix between tax-deferred, Roth, and taxable accounts is positioned for the income strategy you'll need later. It's also when bigger decisions about insurance and estate planning often get attention for the first time.
5–10 years from retirement: the planning window.
The decade before retirement is when most of the consequential decisions get made. Tax-aware Roth conversions, Social Security claiming strategy, healthcare and Medicare planning, sequence-of-returns risk, and the actual income strategy, all of these come into focus. Decisions made in this window can have outsized effects on the rest of retirement, which is why it's also the window where having an integrated plan tends to pay off most.
Already retired: planning continues.
Retirement is a multi-decade phase, not a finish line. Withdrawal sequencing, tax management across changing brackets, RMDs, healthcare cost changes, beneficiary updates, and legacy planning all evolve through retirement. Plans that worked at age 65 often need to be adjusted by age 75, and again by 85. The advisors who add the most value in retirement aren't selling new things, they're adjusting the strategy as the picture changes.
The cost of waiting.
There's no point catastrophizing about a late start, because most people who delay retirement planning still get to a reasonable place. But the math is unforgiving: a dollar saved at 30 has roughly four times as much time to grow as a dollar saved at 50. The earlier the conversation, the more options you have.
The bottom line.
The right time to start retirement planning is whenever you find yourself reading an article like this. The decisions that matter most aren't usually the ones made at age 64, they're the ones that compound from much earlier.
Important: This article is provided for educational purposes only and does not constitute investment, tax, legal, or accounting advice. Investing involves risk, including possible loss of principal. Past performance is not indicative of future results.