The Frisco Engineer Who Ran Out of Buckets

Last October a software architect in Frisco pulled up his payroll dashboard and realized his 401(k) had hit the 2026 IRS maximum of $24,500 — in September. Three more months of paychecks were coming, and he had nowhere tax-efficient left to send them.

He wasn’t broke. He wasn’t reckless. He was simply a disciplined saver who’d outrun his containers. If you’re reading this in the 380 corridor — Frisco, Prosper, Celina, McKinney — there’s a better-than-average chance your household income looks similar. A dual-income couple clearing $250K in Collin County can max two 401(k)s and still have five figures left begging for a strategy.

This is the guide for that leftover money — ranked by tax efficiency and long-term leverage. And fair warning: #5 on this list is the one most financial blogs leave out entirely.

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The 2026 Contribution Landscape: Know Your Ceilings

Before you can overflow, you need to know exactly where the walls are. Here’s the current IRS ceiling structure for 2026:

Add it up: a married couple under 50 with family HSA coverage could shelter roughly $65,150 across qualified accounts before a single dollar hits a taxable bucket. That’s significant — but for households along the Frisco–Plano tech corridor earning $300K+, there’s still a meaningful surplus with nowhere obvious to go.

The question isn’t whether you should keep saving. It’s where — and in what order. Think of it as a waterfall: you fill each bucket in sequence, and when one overflows, the next one catches the runoff.

The Tax-Advantaged Tier: Roth IRA, HSA & Mega Backdoor Roth

1. Roth IRA (or Backdoor Roth)

If your modified adjusted gross income is under $153,000 (single) or $242,000 (married filing jointly), you can contribute directly to a Roth IRA — up to $7,500 in 2026. Every dollar grows tax-free and comes out tax-free in retirement. No required minimum distributions, ever.

Above those thresholds? The Backdoor Roth conversion is still available: contribute to a traditional IRA (non-deductible), then convert to a Roth. It’s legal, it’s common, and your CPA should be able to execute it in one afternoon.

In Texas, where there’s no state income tax, a Roth is arguably more powerful than in California or New York — because you’ll never owe state tax on the withdrawals either. It’s a permanent 0% state tax rate baked into your retirement income. That’s the kind of structural advantage worth acting on.

2. Health Savings Account (HSA)

The HSA is the only account in the entire tax code with a triple tax advantage: contributions are pre-tax, growth is tax-free, and withdrawals for qualified medical expenses are tax-free. After age 65, it functions like a traditional IRA for non-medical expenses (taxed as income, but no penalty).

For 2026, individual coverage allows up to $4,400 in contributions, and family coverage allows up to $8,750. You must be enrolled in a high-deductible health plan (HDHP) to qualify.

The advanced move: don’t spend your HSA on today’s copays. Pay medical bills out of pocket, let the HSA invest and compound for decades, and reimburse yourself in retirement — there’s no time limit on qualified reimbursements.

3. Mega Backdoor Roth (After-Tax 401(k) Contributions)

If your employer’s plan allows after-tax contributions beyond the $24,500 employee deferral, you may be able to contribute up to the combined employer + employee ceiling of $72,000. That after-tax money can then be converted to a Roth — either in-plan or via rollover. This is the single largest tax-free wealth pipeline available under current law.

Not every plan supports this. Check with your HR department or plan administrator. If yours does, this one move could dwarf everything else on the list.

The Hidden Tier: Cash Value Life Insurance as a Wealth Vehicle

This is the section most financial blogs skip — and it’s exactly where the conversation gets interesting.

Once your 401(k) is maxed, your Roth is funded, and your HSA is full, you’ve exhausted the IRS-sanctioned buckets. But cash value life insurance sits outside that system entirely. There’s no IRS contribution cap. Growth is tax-deferred. And when structured properly, policy loans allow you to access your money tax-free — without triggering capital gains, without affecting your Social Security taxation thresholds, and without generating a 1099.

4. Whole Life Insurance with Paid-Up Additions

A participating whole life policy from a mutual carrier pays annual dividends that can be reinvested as paid-up additions — essentially purchasing micro-layers of additional coverage that further increase cash value. The growth is contractually guaranteed at a minimum rate, with dividends added on top (not guaranteed, but mutual carriers like MassMutual and Penn Mutual have paid dividends for over a century).

Proverbs 13:22 reads: “A good man leaveth an inheritance to his children’s children.” The dual-purpose nature of whole life — living wealth and a death benefit — is the only instrument in this entire list that lets you build retirement income while simultaneously constructing a legacy for the next generation.

5. Indexed Universal Life (IUL)

An IUL links cash value growth to a market index (often the S&P 500) with a floor — typically 0% — meaning your account value doesn’t decline when the market drops. There’s a cap on upside in exchange for that downside protection, but for a post-401(k) overflow vehicle, the risk profile is compelling: you participate in market gains without absorbing market losses.

This structure is particularly useful for North Texas business owners and high-earning W-2 professionals who’ve already saturated tax-deferred accounts and want interest arbitrage — the ability to borrow against a growing asset at a net cost that approaches zero.

Why Wall Street Doesn’t Mention It

Here’s a First Principles observation: Wall Street’s business model earns management fees on assets under management. A dollar inside a life insurance policy is a dollar that isn’t inside a brokerage account generating a 1% annual fee. The incentive structure doesn’t reward financial media for educating you about this category. That’s not a conspiracy — it’s just economics.

Think of it like this: a hardware store doesn’t advertise the rental shop next door, even if the rental shop is the better choice for your project. You have to walk over there yourself.

If this concept resonates, our deeper guide on using life insurance to create generational wealth walks through the mechanics step by step.

The Flexible Tier: Brokerage Accounts, 529 Plans & Real Estate

6. Taxable Brokerage Account

No tax deduction on contributions. No tax-free growth. So why does it make the list? Flexibility. There are no contribution limits, no income restrictions, no age-based withdrawal penalties, and no required minimum distributions. You can invest in individual stocks, ETFs, index funds, bonds — whatever you want — and access the money at any time for any reason.

The tax-efficient approach: favor low-turnover index ETFs, hold positions for longer than a year to qualify for long-term capital gains rates (0%, 15%, or 20% depending on income), and use tax-loss harvesting to offset gains.

For many high-earning families in Frisco and Plano, a brokerage account serves as the “bridge” — the money you’ll draw from between early retirement (say, age 55) and when you can tap retirement accounts penalty-free at 59½.

7. 529 College Savings Plan

If you have children or grandchildren, a 529 plan offers tax-free growth and tax-free withdrawals for qualified education expenses. Texas doesn’t offer a state deduction (because there’s no state income tax), but the federal tax-free growth alone is meaningful over 10–18 years of compounding.

The SECURE 2.0 Act sweetened the deal: unused 529 funds can now be rolled into a Roth IRA for the beneficiary (subject to annual contribution limits and a 15-year account age requirement). That means a 529 is no longer a “use it or lose it” bet — it’s a flexible generational savings tool.

Honorable Mention: Real Estate

North Texas real estate — particularly along the US-380 growth corridor from Denton through Prosper and into McKinney — continues to attract families relocating from higher-cost metros. Rental property offers cash flow, depreciation deductions, and long-term appreciation. But it’s illiquid, management-intensive, and leveraged. It belongs in the plan for the right family, but it’s not a passive “next bucket” the way the other six are.

If you go this route, make sure your investment property is properly insured. The risks — liability, wind/hail damage, vacancy — are real and specific to this region.

Side-by-Side Comparison: All 7 Overflow Vehicles

Notice the pattern: only two vehicles on this list provide a death benefit alongside wealth accumulation. If your wealth-building strategy in your 30s and 40s only accounts for accumulation and ignores transfer, you’re solving half the equation.

And here’s the part that should stop you mid-scroll: every other vehicle on this list terminates its value at your death. Cash value life insurance is the only one that amplifies its value at death — delivering a tax-free death benefit that can be multiples of what you contributed. That’s not a feature. That’s a structural category difference.

The Waterfall Order We Recommend

There is no universal “right answer,” but for a typical North Texas dual-income family, here’s the priority sequence we walk through at The Agent’s Office®:

1. 401(k) up to employer match — free money first, always.
2. Roth IRA (or Backdoor Roth) — $7,500 of permanent tax-free growth.
3. HSA — triple-tax advantage; invest it and don’t touch it.
4. Max remaining 401(k) — up to $24,500.
5. Cash value life insurance — uncapped, tax-advantaged, with a death benefit.
6. Mega Backdoor Roth — if your plan allows it.
7. Taxable brokerage / 529 — flexibility and education funding.

Step 5 is where we come in. If you’ve already done steps 1–4 and still have surplus cash flow, the old “buy term and invest the difference” mantra starts to break down — because at that point, the “difference” is going into fully taxable accounts with zero legacy benefit.