By Tracy Byrnes
For nearly a decade, financial planners operated under an artificial clock: the scheduled expiration of the Tax Cuts and Jobs Act. Conversations revolved around sunsets and legislative risk, and planning was defensive.
The One Big Beautiful Bill Act (OBBBA), signed on July 4, 2025, ended much of that uncertainty. Individual rates, estate exemptions, and important structural provisions are now effectively permanent. Predictability shifts the advantage to advisors willing to engineer outcomes across decades instead of managing around April 15.
Here are five structural shifts that will define the next era of financial planning.
Deduction planning is over. With the enhanced standard deduction locked in for 2026 -- $32,200 for joint filers and $16,100 for singles -- many people no longer need to itemize. The key question is no longer "What can we deduct?" It is: "In which year should this income exist?"
However, the new law adds layers of complexity. Consider that taxpayers age 65-plus can claim an additional deduction of up to $6,000 ($12,400 for couples), though this phases out for joint filers with a modified adjusted gross income over $150,000.
Another area of new complexity concerns those in high-tax states like New Jersey. The state and local tax, or SALT, deduction cap has been raised to $40,000 through 2029, with a phase-out beginning at $500,000 of income. A new 0.5% adjusted gross income floor for itemized charitable contributions makes "bunching" strategies essential to maximize tax alpha.
Multiyear modeling is key. With brackets stabilized, legislative volatility declines -- but income drift increases. Clients gradually migrate upward as income compounds. OBBBA introduces a cap on itemized deductions specifically for those in the 37% bracket (taxable income over $768,600 for joint filers).
Smoothing lifetime marginal rates matters more than minimizing this year's bill. Advisors who aren't projecting across multiple years are missing a chance to help clients save money.
Use Roth catch-ups. Beginning in 2026, individuals with prior-year wages above $150,000 must use a Roth to make age-50-plus catch-up contributions. The 2026 catch-up limit for 401(k) plans is $8,000 for those aged 50 to 59. This structurally increases the share of tax-free capital on future retiree balance sheets. Firms that master withdrawal design, including factoring in Medicare income related monthly adjustment amount threshold management, will outperform those focused solely on contribution maximization.
QSBS is an important tool. Qualified Small Business Stock (QSBS) remains an important provision. Under Section 1202, eligible shareholders may exclude up to 100% of capital gains (up to the greater of $10 million or 10 times basis). QSBS eligibility must be established at formation; by the time a company prepares for exit, the window is often closed.
Allocate capital across generations. The federal estate tax exemption is set at $15 million per person for 2026, and will be indexed for inflation annually starting in 2027. Plus, the new law also introduces " Trump Accounts," special traditional IRAs seeded with a $1,000 federal contribution for children born between 2025 and 2028. Families may contribute up to $5,000 annually after tax. While they don't replace 529 plans (as withdrawals for education are taxable), they institutionalize retirement compounding from birth.
The OBBBA didn't simplify financial planning. It eliminated uncertainty -- and with it, excuses. The next decade won't be defined by who picks the best stock. It will be defined by who delivers the most efficient after-tax result across decades.
Tracy Byrnes is the vice president of Women & Investing at Lebenthal Global Advisors and the author of, Deduct Everything! What You Need to Know about Trump's Tax Cuts and the One Big Beautiful Bill . She holds the Certified Divorce Financial Analyst (CDFA) certification.
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March 24, 2026 12:40 ET (16:40 GMT)
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