Why Peak Earning Years Are a Tax Planning Window You Can’t Get Back
There’s no alert for a missed tax planning opportunity. No letter, no notification, no urgent email. The window just quietly closes.
A physician in her peak earning years skips funding her HSA for a decade, leaving tens of thousands of dollars in tax-advantaged contributions she can never reclaim. A business owner takes a salary instead of structuring for capital gains treatment, and over five years, the gap adds up to a mid-six-figure sum that never appears on any statement.
This is the paradox of tax planning for high earners: what you don’t do can cost as much as what you get wrong.
The Peak-Earning Paradox
The years when tax strategy delivers the biggest returns are often the years you have the least time for it. Business growth, career advancement, and liquidity events create planning opportunities that simply won’t exist after you exit or retire.
During this window, strategies like defined benefit or cash balance plans, backdoor and mega backdoor Roth contributions, HSA funding, donor-advised fund “bunching,” Qualified Small Business Stock (QSBS) positioning, entity restructuring, and careful ISO and AMT management can meaningfully change a client’s long-term outcome. Many only work if they are put in place years before a liquidity event or retirement. Waiting until afterward usually means settling for less efficient alternatives.
That’s where coordination matters. A CPA files accurately. An investment advisor manages the portfolio. An attorney drafts the documents. But without someone quarterbacking how those pieces interact over decades, opportunities can pass by unnoticed.
What Inaction Can Cost
The cost of doing nothing is real, it’s just harder to see than a line item.
Entity structure is one example of where you’ll need to carefully consider IRS Rules. Business owners operating as LLCs or partnerships often face less favorable tax treatment at exit, with inventory, receivables, and depreciation recapture pushing a portion of sale proceeds into ordinary income rates above 37%, versus 15–20% for long-term capital gains. On a $5 million exit, that gap can mean $750,000 or more in additional taxes. C-Corp structures, and QSBS treatment in particular, can preserve far more of that value, but generally only if set up years in advance.
Unfunded tax-advantaged accounts tell a similar story. HSAs offer a rare triple benefit: deductible contributions, tax-free growth, and tax-free withdrawals for qualified expenses. A decade of missed contributions can mean forgoing $80,000–$100,000 in tax-advantaged savings, plus the compounding that went with it.
Concentrated stock positions, real estate, and state tax exposure carry similar risk when left without a plan, as do Medicare IRMAA surcharges, the Net Investment Income Tax, and estate tax thresholds, all of which can appear suddenly once income or assets cross a given line.
How Simon Quick Helps Clients Get Ahead of It
Kristin McCamish Bell, CFA, CFP® | Principal / Director & Client Advisor
For high-earning clients, Simon Quick Advisors builds a proactive playbook around five priorities:
• Maximizing every tax-advantaged account available, from backdoor Roth contributions to defined benefit plans that can shelter far more than a 401(k).
• Engineering the income mix so salary, distributions, equity compensation, and capital gains are recognized in the way that fits a client’s broader plan.
• Integrating charitable giving with tax strategy, using appreciated stock and donor-advised funds to front-load deductions in high-income years.
• Harvesting tax losses systematically so concentrated positions can be diversified without absorbing the full tax hit at once.
• Monitoring thresholds like AGI cliffs and IRMAA triggers so a strong income year doesn’t create an unnecessary surcharge two years later.
None of this works well as a once-a-year checklist. It works when a CPA, attorney, and advisor are modeling decisions together over a 15- to 20-year horizon because the strategies that create the most value are often the ones that must be started years before they’re needed.
The Window Doesn’t Reopen
Peak earning years don’t last forever, and neither do the opportunities they create. If you’re a high-income earner and you’re not sure whether you’re leaving money on the table, there’s a good chance you are, and the first step is finding out before the window closes.
Simon Quick Advisors works with business owners, executives, and professionals to engineer tax-efficient strategies well before a liquidity event or retirement arrives. Schedule a consultation to see where your own window still stands open.
