Is Paying Off Your Mortgage in Your Late 50s the Right Move?

Key Takeaways High earners maxing out 401(k)s at $24,500 are only saving about 8% of a $300,000 income in their primary retirement account. The mega backdoor Roth strategy can increase total 401(k) contributions to $72,000 annually with tax-free growth. A comprehensive approach can create nearly $3 million in additional retirement wealth over 20 years. It's 2026. You're checking all the boxes. You're earning upwards of $300,000 annually, and you're maxing out your 401(k) every year. You've reached the $24,500 contribution limit and feel confident about securing your financial future. Then you realize $24,500 represents less than 8% of your income. Over 20 years, this gap adds up to millions in lost opportunity. Thankfully, you're not stuck with the basic 401(k) playbook. There are sophisticated strategies beyond your contribution limit. 5 Strategic Moves for High Earners with Maxed-Out 401(k)s Here are five sophisticated strategies that can help you build wealth beyond your basic 401(k) contributions. All projections assume a 7% average annual return and are estimates for illustrative purposes. 1. Mega Backdoor Roth Contributions If your employer's 401(k) plan allows after-tax contributions, this could be your biggest opportunity. With employee contributions, employer match, and after-tax contributions, the combined 401(k) limit for 2026 is $72,000 ($80,000 if you're 50 or older). The mega backdoor Roth works because you immediately convert those after-tax contributions into a Roth account, where they grow tax-free forever. The catch: Not all employers offer this option. You need a plan that permits after-tax contributions and in-service Roth conversions. The impact: The available space for after-tax contributions depends on your employer match. With a typical employer match of 3-6% (roughly $10,000-$21,000 on a $350,000 salary), you could contribute approximately $26,500-$37,000 annually. At 7% average returns over 20 years, this creates approximately $1.1-$1.5 million in additional tax-free retirement savings. 2. Donor-Advised Funds for Charitable Giving If you're charitably inclined, donor-advised funds (DAFs) offer a way to bunch several years of charitable contributions into one tax year, maximizing your itemized deductions while still spreading your giving over time. You get an immediate tax deduction for the full contribution, but you can recommend grants to charities over many years. The funds grow tax-free in the meantime. The catch: Once you contribute to a DAF, the money is irrevocably committed to charity. You can't get it back for personal use. The impact: Contributing $50,000 to a DAF in a high-income year (versus giving $10,000 annually) can create immediate federal tax savings of $15,000-$18,500 while still allowing you to support the same charities over five years. 3. Taxable Brokerage Accounts with Tax-Loss Harvesting Once you've maximized tax-advantaged accounts, strategic taxable investing becomes your next move. The key is working with a financial advisor who implements systematic tax-loss harvesting throughout the year. Tax-loss harvesting involves selling investments at a loss to offset capital gains elsewhere. Done strategically, this can save thousands in taxes annually. The catch: Long-term capital gain rates (0%, 15%, or 20%) are lower than ordinary income tax rates, but you're still paying taxes on gains. It's less tax-efficient than retirement accounts, but far better than ignoring tax optimization. The impact: For high earners in the 35-37% ordinary income brackets, the difference between long-term capital gains (20%) and ordinary rates is significant. Effective tax-loss harvesting on $50,000 in annual gains over 20 years could save $150,000+ in taxes. 4. Health Savings Account (HSA) Triple Tax Advantage HSAs offer a unique triple tax benefit: tax-deductible contributions, tax-free growth, and tax-free withdrawals for qualified medical expenses. With 2026 contribution limits of $4,400 for individuals and $8,750 for families, this adds another powerful layer to your strategy. You can invest HSA funds just like an IRA and let them grow for decades. After age 65, you can withdraw the funds for any purpose, medical or otherwise. The catch: You must have a high-deductible health plan to qualify for an HSA. After age 65, non-medical withdrawals are taxed as ordinary income (like traditional IRA distributions), but you still benefit from the upfront deduction and decades of tax-free growth. The impact: Contributing the family maximum ($8,750) annually for 20 years at a 7% average annual return creates approximately $355,000-$360,000 in tax-advantaged savings. 5. Backdoor Roth IRA Contributions Not to be confused with mega backdoor Roth contributions! Even if your income exceeds the Roth IRA contribution limits, you can still fund a Roth through the backdoor method: make a non-deductible contribution to a traditional IRA, then immediately convert it to a Roth IRA. The catch: If you have existing traditional IRA balances, the pro-rata rule complicates things. You may want to consider rolling those funds into your 401(k) first if your plan allows. The impact: Contributing $7,000 annually through the backdoor Roth for 20 years at 7% average annual return creates approximately $285,000-$290,000 in tax-free retirement savings. What Compounding These Strategies Looks Like Over 20 Years Let’s look at approximate outcomes based on a 7% average annual return. 401(k) Only: Annual contribution: $24,500 Total after 20 years: ~$1M 401(k) + Mega Backdoor Roth: Annual contribution: $72,000 Total after 20 years: ~$3M Note: Mega backdoor Roth space varies based on your employer's match. These calculations assume you're maximizing the total annual limit. Comprehensive Approach (under age 50): Mega Backdoor Roth: ~$3.0M HSA: ~$350K-$360K Backdoor Roth IRA: ~$285K-$290K Strategic taxable investing with tax-loss harvesting Total retirement savings: ~$3.6M+, plus taxable investments Comprehensive Approach (ages 50-59): With higher contribution limits and catch-up contributions, total retirement savings can reach ~$4M+ over 20 years. Comprehensive Approach (ages 60–63 with enhanced catch-up contributions) Higher contribution limits during peak earning years allow for meaningful acceleration of retirement savings. The exact impact depends on timing, contribution duration, and existing balances. The Bottom Line The difference between stopping at your basic 401(k) and implementing a comprehensive strategy can approach $3 million or more in additional retirement wealth over time. Why Strategic Coordination Matters These aren't either/or decisions. The most effective approach coordinates multiple strategies while ensuring everything works together. At Five Pine Wealth Management , we help high-earning clients build comprehensive plans that go beyond the 401(k). We coordinate your employer benefits, tax strategies, and investment accounts to create a cohesive approach that maximizes your wealth-building potential. This requires working across several areas: Analyzing your employer's 401(k) plan for mega backdoor Roth opportunities Implementing systematic tax-loss harvesting in taxable accounts Coordinating Roth conversions and backdoor contributions Optimizing your HSA as a long-term retirement vehicle Ensuring charitable giving strategies align with your tax situation Maximizing catch-up contributions when you reach milestone ages As fiduciary advisors, we're legally obligated to act in your best interest. That means we're focused on strategies that serve your goals, not products that generate commissions. Ready to see what's possible beyond your 401(k)? Email us at info@fivepinewealth.com or call 877.333.1015 to schedule a conversation about your specific situation. Frequently Asked Questions (FAQs) Q: Does my employer's 401(k) plan automatically allow mega backdoor Roth contributions? A: No. You need a plan that permits after-tax contributions and in-service conversions to Roth. Check with your HR department. Q: How do I prioritize which investment strategies to use? A: Generally, maximize employer match first (it's free money), then fully fund your 401(k), explore Mega Backdoor Roth if available, max out your HSA, consider backdoor Roth IRA contributions, and then move to taxable accounts with tax-loss harvesting. We can help determine the right sequence for your circumstances.