OBBBA Tax Changes: What Retirees Need to Know for 2026

On July 4, 2025, President Trump signed the One Big Beautiful Bill Act (OBBBA) into law — the largest tax legislation since the Tax Cuts and Jobs Act of 2017.[1] The bill is sprawling, covering everything from child tax credits to defense spending. But for retirees and near-retirees, a handful of provisions deserve close attention because they directly change the math on Roth conversions, charitable giving, income planning, and tax bracket strategy for 2026 and beyond.

Below is a retiree-focused breakdown of the provisions that matter most, with the numbers you need to plan around.

1. TCJA Tax Rates Made Permanent

The single biggest provision for retirees: the individual income tax rates from the 2017 Tax Cuts and Jobs Act are now permanent.[1] Without the OBBBA, the seven brackets (10%, 12%, 22%, 24%, 32%, 35%, 37%) would have reverted to the pre-2018 rates (10%, 15%, 25%, 28%, 33%, 35%, 39.6%) starting January 1, 2026.

For 2026, the key brackets for married filing jointly are:[2]

• 10% on income up to $24,800
• 12% on income from $24,800 to $100,800
• 22% on income from $100,800 to $211,400
• 24% on income from $211,400 to $403,550
• 32% on income from $403,550 to $512,450
• 35% on income from $512,450 to $768,700
• 37% on income above $768,700

Why it matters for retirees:If you were planning aggressive Roth conversions before a 2026 “sunset” that would push rates higher, that urgency is gone. The 22% and 24% brackets — the sweet spot for most retiree Roth conversions — are now the permanent landscape. You can spread conversions over more years without racing a deadline.

However, “permanent” in tax law means “until Congress changes it again.” Future legislation could still alter rates. The current rates simply have no built-in expiration date.

2. New Senior Standard Deduction ($4,000 / $8,000)

The OBBBA created a brand-new additional standard deduction specifically for taxpayers age 65 and older.[3] This is on top of the existing elderly/blind additional standard deduction that has existed for decades.

For 2026, the new deduction amounts are:

• $4,000 for single filers age 65+
• $8,000 for married filing jointly (both spouses 65+)

Combined with the existing additional standard deduction ($1,600 per single filer 65+, $1,300 per married spouse 65+) and the regular standard deduction ($16,100 single / $32,200 MFJ for 2026), a married couple where both spouses are 65+ can take a total standard deduction of approximately $42,800.[2]

Critical limitation: The new senior deduction phases out for higher earners. It begins to phase out at AGI of $75,000 (single) or $150,000 (MFJ) and is fully eliminated at $100,000 / $200,000.[3]It is also temporary — available only for tax years 2025 through 2028.

Planning angle:For retirees with modest income, this extra deduction effectively creates a larger “zero tax” zone. A 65+ couple filing jointly with only Social Security and small IRA withdrawals could have over $42,000 in gross income before paying any federal tax. This changes the calculus for Roth conversions — you can convert more at the 0% effective rate.

3. Charitable Deduction Floor (0.5% of AGI)

The OBBBA introduced a floor on charitable contribution deductions for itemizers.[3] Starting in 2026, only charitable contributions that exceed 0.5% of your adjusted gross income are deductible. Contributions below that floor generate no tax benefit.

For a retiree with $120,000 AGI, the floor is $600. If you give $2,000 to charity, only $1,400 is deductible. For small givers, this effectively eliminates the charitable deduction entirely.

Retiree strategy — QCDs: Qualified Charitable Distributions remain unaffected by this floor.[4]A QCD is a direct transfer from your IRA to a qualifying charity (available after age 70-1/2). The distribution is excluded from gross income entirely — it never appears in AGI, so the 0.5% floor is irrelevant. For 2026, the QCD limit is $111,000 per person.

Bunching strategy:If you prefer to itemize charitable contributions rather than use QCDs, consider “bunching” — concentrating two or three years of giving into a single year (often through a donor-advised fund) to exceed both the 0.5% floor and the standard deduction threshold. In alternating years, take the standard deduction.

4. AMT Exemption Phaseout Doubles in Speed

The Alternative Minimum Tax (AMT) exemption phaseout rate was doubled by the OBBBA from 25 cents per dollar to 50 cents per dollar of income above the phaseout threshold.[5] For 2026, the AMT exemption for married filing jointly is approximately $133,300, with the phaseout beginning at $1,252,700.[2]

Who is affected: Most retirees never encounter the AMT because the TCJA dramatically reduced the number of taxpayers subject to it by raising the exemption and limiting SALT deductions. However, retirees in high-tax states who itemize large state tax deductions, or those exercising incentive stock options in retirement, should verify their AMT exposure. The faster phaseout means the exemption disappears at a lower income level than before.

5. Enhanced Child Tax Credit and “Trump Accounts”

While not directly a retiree provision, the OBBBA increased the child tax credit to $2,500 per qualifying child(up from $2,000) for 2025–2028.[3] The refundable portion also increased. For grandparents who claim grandchildren as dependents, this may provide a larger credit.

The bill also created “Trump Accounts” — tax-advantaged savings accounts for children born from 2025 onward, seeded with a $1,000 government contribution.[1] Contributions are not deductible but earnings grow tax-free if used for qualified purposes. Grandparents looking for tax-efficient ways to save for grandchildren now have another option alongside 529 plans.

6. What the OBBBA Did Not Change (But Retirees Should Know)

Several provisions retirees care about were not altered by the OBBBA:

• ACA subsidy cliff: The enhanced premium tax credits from the Inflation Reduction Act expired at the end of 2025. The OBBBA did not extend them. The 400% FPL cliff is back for the 2026 plan year.
• NIIT threshold: The 3.8% Net Investment Income Tax still applies above $200,000 (single) / $250,000 (MFJ) with no inflation indexing.[5]
• Social Security taxation thresholds: The provisional income thresholds ($25,000 / $32,000) remain unchanged and are still not indexed for inflation.
• IRMAA brackets: Medicare surcharge thresholds continue to be set by CMS annually with no legislative changes.
• RMD rules: The SECURE 2.0 Act RMD age (73 in 2023, 75 in 2033) was not modified.

Planning Implications: Putting It All Together

The OBBBA creates a new planning landscape for retirees. Here are the key takeaways:

Roth conversion pacing:With TCJA rates permanent, there is less urgency to cram conversions into a single year before a sunset. Instead, optimize for filling brackets precisely — especially the 12% and 22% brackets — while staying below IRMAA tiers and the ACA cliff.

Leverage the senior deduction:If you are 65+ with AGI under $150,000 (MFJ), the extra $8,000 deduction creates room for larger tax-free Roth conversions or more IRA withdrawals at the 0% effective rate. But act before 2029 — this provision expires after tax year 2028.

Shift charitable giving to QCDs: The 0.5% AGI floor makes QCDs even more advantageous than before. If you are over 70-1/2 and give to charity, a QCD from your IRA is almost always superior to an itemized deduction now.

Check your AMT exposure: If you live in a high-tax state and exercise stock options or have large SALT exposure, the faster AMT phaseout may affect you. Run the numbers or consult a tax professional.