You’re Saving. But Are You Creating a Tax Problem You Can’t See Yet?

You’re doing the right things. Maxing your 401(k). Taking the tax deduction. Watching the balance grow. By the time you’re in your 40s or 50s, your nest egg looks impressive.

But here’s a question worth asking: is your saving pattern quietly creating a problem you won’t see until you need the money?

For a lot of disciplined savers, the answer is yes. Almost all the wealth ends up in one type of account, pre-tax, and that concentration creates a kind of financial inflexibility that only shows up when it’s too late to easily fix.

The problem with going all-in on tax-deferred accounts

Pre-tax accounts are powerful. You get a deduction today, and the money grows tax-deferred for decades. For most working years, defaulting to the 401(k) makes sense. But when most, or all, of your savings ends up in those accounts, a problem builds quietly in the background.

Every dollar in a tax-deferred account is a future tax bill you don’t fully control. When you withdraw, the full amount comes out as ordinary income, not at the lower capital gains rate, not at a reduced rate. Full income tax, every time, on every dollar.

And it gets more complicated at age 73. That’s when Required Minimum Distributions kick in.

The IRS requires you to start withdrawing from your pre-tax accounts whether you need the money or not. If the balance is large, those forced withdrawals can push you into a higher tax bracket, raise your Medicare premiums, and cause more of your Social Security to become taxable, all at the same time, year after year.

To see why the balance matters, consider two people who both saved $3 million: 

LIMITED FLEXIBILITY Person A $2.5M — Tax-deferred (401k/IRA) $300K — Taxable brokerage $200K — Roth

FULL FLEXIBILITY Person B $1M — Tax-deferred (401k/IRA) $1M — Taxable brokerage $1M — Roth

Same net worth. Very different options. Person A faces a taxable event on almost every withdrawal. Each year, person B can choose which account to pull from, managing their income, their bracket, and their tax bill on their own terms. That flexibility is worth real money over a 20- or 30-year period.

The three tax buckets you need to know

The key shift is simple: Don’t think in account names. Think about savings in tax buckets.

There are three buckets that matter:

1. Taxable (Flexible Money)

This includes brokerage accounts and joint accounts.

You don’t get a deduction upfront, but you gain flexibility.

• Long-term capital gains are taxed at lower rates

• You can access money anytime

• Assets may receive a step-up in basis at death

  
  

This bucket gives you control when you need income.

2. Tax-Deferred (Delayed Taxes)

This includes 401(k)s, traditional IRAs, and deferred compensation.

• You get a tax break today

• Growth is tax-deferred

• Withdrawals are taxed as ordinary income

• RMDs begin later in life

  
  

This bucket is powerful, but too much of it creates future tax pressure.

3. Tax-Free (Maximum Flexibility)

This includes Roth IRAs, Roth 401(k)s, and HSAs.

• No tax deduction today

• Growth is tax-free

• Withdrawals are tax-free

• No RMDs on Roth IRAs

  
  

This is your most valuable bucket in retirement, especially when income is high.

Why Balance Matters

The goal isn’t to avoid pre-tax accounts. The goal is to build balance across all three buckets.

Each bucket has a role to play. The problem isn’t having a tax-deferred account, it’s having almost nothing else. When Bucket 2 holds almost everything and Buckets 1 and 3 are barely there, your options shrink fast.

How to start building better balance

You don’t need to overhaul everything overnight. Small, intentional shifts can make a big difference over time.

Here are a few places to start:

• Add Roth contributions to your 401(k). Even splitting contributions between pre-tax and Roth can improve your future flexibility.

• Use the backdoor Roth IRA strategy. This allows high earners to build tax-free assets each year, even above income limits.

• Build a taxable brokerage account. This is often overlooked but extremely valuable. It provides flexibility, tax efficiency, and no restrictions.

• Look for Roth conversion opportunities. Lower-income years, like early retirement, are ideal times to convert pre-tax money at a lower tax rate.

• Max and invest your HSA. It offers tax-free growth and can be used later for one of your biggest retirement expenses: healthcare.

• Be careful with deferred compensation. Too much can increase your future tax burden. Spreading payouts over time often provides better control.

Final Thoughts

Tax diversification matters just as much as investment diversification. Spreading your money across different investments can protect you from market risk. Spreading it across different tax buckets can protect you from tax risk.

And over time, that can make a meaningful difference in how much you keep.

Balanced buckets create flexibility. Flexibility creates control. And control is what allows you to use your money on your terms, not the IRS’s.

If most of your savings are sitting in tax-deferred accounts, now is a good time to take a closer look.

The earlier you start building balance, the more options you’ll have when it matters most.

 - Steve Balch, CFP®

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