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One Big Beautiful Bill Act: Significant Tax Changes

Written by Gerry O'Connell, Enrolled Agent, Tax Planning Partner | Aug 8, 2025 9:44:48 PM

Significant Tax Changes from the One Big Beautiful Bill Act (OBBBA)

Individual Taxation in the OBBBA

1. 2017 Tax Cuts Made Permanent

Makes the 2017 Tax Cuts and Jobs Act (TCJA) tax brackets and standard deduction permanent for all taxpayers, preventing any scheduled tax increases for tax year 2026. Higher rates are now permanently removed.

2025 Tax Bracket Comparison: "Old" vs. OBBBA (Made Permanent)

Bracket

“Old” Rate

OBBBA Rate

2025 Income Range (Single)

2025 Income Range (Married Filing Jointly)

Bracket 1

10.0%

10.0%

$0 – $11,925

$0 – $23,850

Bracket 2

15.0%

12.0%

$11,926 – $48,475

$23,851 – $96,950

Bracket 3

25.0%

22.0%

$48,476 – $103,350

$96,951 – $206,700

Bracket 4

28.0%

24.0%

$103,351 – $197,300

$206,701 – $394,600

Bracket 5

33.0%

32.0%

$197,301 – $250,525

$394,601 – $501,050

Bracket 6

35.0%

35.0%

$250,526 – $626,350

$501,051 – $751,600

Bracket 7

39.6%

37.0%

Over $626,350

Over $751,600

Note: These are 2025 inflation-adjusted federal tax brackets. Under OBBBA, Tax Cuts and Jobs Act's (TCJA) lower rates and structure are made permanent and will continue to adjust annually for inflation.

 

Higher Standard Deduction Made Permanent - Comparison: 2024 vs. 2025 and Following

Standard Deduction by Filing Status

Filing Status 2024 Standard Deduction 2025+ New Law (Permanent) Increase
Single $14,600 $15,750 +$1,150
Head of Household $21,900 $23,625 +$1,725
Married Filing Jointly $29,200 $31,500 +$2,300
Married Filing Separately $14,600 $15,750 +$1,150

 

2025 Senior Tax Deduction Summary - Effective for Tax Year 2025

This table summarizes the total federal tax deduction available to senior taxpayers (age 65 and older) under OBBBA for the tax year 2025. The new $6,000 senior above-the-line deduction (up to $12,000 per couple) is in addition to the standard deduction and the traditional age-based extra deduction.

Filing Status

Standard Deduction

Age/Blind Deduction

OBBBA Senior Bonus (Above-the -Line)

Total Potential Deduction

Single (65+)

$15,750

$2,000

$6,000

$23,750

Married Filing Jointly (One 65+)

$31,500

$1,600

$6,000

$39,100

Married Filing Jointly (Both 65+)

$31,500

$3,200

$12,000

$46,700

All 2025+ standard deductions are indexed for inflation

 

2. $2,200 Child Tax Credit - Effective for Tax Year 2025

Raises the child tax credit to $2,200 per child. The refundable portion of the credit, referred to as the Additional Child Tax Credit (ACTC), is adjusted for inflation and, for the 2025 tax year, is set at $1,700. Credit begins to phase out for taxpayers with adjusted gross income (AGI) in excess of $400,000 in the case of married taxpayers filing jointly and $200,000 for all other taxpayers. It completely phases out when the taxpayer’s modified adjusted gross income (MAGI) reaches $ 240,000 and $440,000 MFJ.

 

3. Tip Income Deduction

Creates an above-the-line deduction of tip-based earnings capped at $25,000 per individual. The deduction is phased out by $100 for each $1,000 by which the taxpayer’s MAGI exceeds $150,000 ($300,000 MFJ) and completely phases out when the taxpayer’s MAGI reaches $400,000 ($550,000 MFJ). Effective for 2025 through 2028.

 

4. Overtime Pay Deduction

Creates an above-the-line deduction for qualified overtime compensation. Maximum annual deduction is $12,500 ($25,000 for joint filers). The deduction is phased out by $100 for each $1,000 by which the taxpayer’s MAGI exceeds $150,000 ($300,000 MFJ) and completely phases out when the taxpayer’s MAGI reaches $275,000 ($550,000 MFJ). Effective for 2025 through 2028.

 

5. New Car Loan Interest Deduction

Permits up to $10,000 of interest deduction on a qualified passenger vehicle. Must be new auto loans for U.S.-assembled cars bought 2025–2028; begins to phase out for singles over $100,000 or joint filers over $200,000, and completely disappears where income exceeds $150,000 for singles and $250,000 MFJ. Above the line deduction. Car must be for personal use - not a business asset.

 

6. Temporary State and Local Tax (SALT) Cap Increase

Raises SALT deduction to $40,000 ($20,000 MFS) for households earning below $500,000 in 2025, phasing out between $500,000 and $600,000, but not below $10,000. Reverting to $10,000 in 2030.

Provision

Details

New SALT Cap (2025–2029)

Increased from $10,000 to $40,000 in 2025; rises 1% per year until 2029

Reversion (2030+)

Cap reverts to $10,000 unless extended by future legislation

Phase-Out Threshold

$500,000-$600,000 AGI (MFJ); cap reduced by 30% of excess income. $10,000 cap above $600,000.

Phase-Out Floor

Deduction cannot drop below $10,000

Married Filing Single Threshold and Cap

$250,000- $300,000 AGI threshold; $20,000 cap

Annual Inflation Adjustment

Both cap and phase-out thresholds increase 1% per year (2025–2029)

PTET Workaround

Preserved for pass-through entities with anti-abuse provisions

Effective Tax Year

Applies to tax year 2025 (filed in 2026)

 

7. Special Senior Bonus Deduction - Effective for 2025

Effective for 2025 through 2028, individuals who are age 65 and older may claim an additional above-the-line deduction of $6,000 ($12,000 total for a married couple where both spouses qualify). This new deduction is in addition to the current traditional age-based extra deduction standard deduction for seniors under existing law. This special deduction is “in lieu” of the “No Tax on Social Security” campaign promise. Deduction is available for both itemizing and non-itemizing taxpayers. The $6,000 exemption deduction begins to phase out by 6% by the amount a taxpayer’s MAGI exceeds $75,000 ($150,000 MFJ) and varies by filing status as detailed below:

Filing Status

Maximum Deduction

Phaseout Range

Single

$6,000

$75,000–$175,000

Head of Household (HOH)

$6,000

$75,000–$175,000

Married Filing Jointly (One spouse 65+)

$6,000

$150,000–$250,000

Married Filing Jointly (Both spouses 65+)

$12,000

$150,000–$350,000

Married Filing Separately (MFS)

$0

N/A

 

8. "MAGA" Newborn Savings Accounts / Trump's Accounts - Effective for 2026

Taxpayers can make an election on behalf of their eligible child to have $1,000 treated as a tax payment for the taxable year. The $1,000 will be deposited into a Trump account established on behalf of the child. An eligible child, defined as a U.S. citizen child born in 2025 through 2028 for whom no previous election has been made. The account is treated in the same manner as an IRA (cannot be a ROTH IRA) with special rules, during the period when the beneficiary is under age 18.

Additional contributions to the Trump accounts can be made from parents, relatives, and other taxable entities, as well as nonprofit and government entities. Contributions to the accounts can only be made after-tax (except for employer contributions up to $2,500, which can be pre-tax) if made prior to the child turning age 18, and aggregate contributions are limited to $5,000 annually (adjusted for inflation beginning with the 2028 taxable year).

The funds from the accounts cannot be distributed prior to the calendar year in which the child turns age 18. Distributions will be taxed like any other IRA. Because the contributions made by parents and other relatives are made after-tax, these contributions would not be subject to tax when withdrawn.

No income cap specified.

 

9. Charitable Donations - Effective for 2026

Establishes a new above-the-line charitable contribution deduction of up to $1,000 for single filers and $2,000 for married couples filing jointly, available to non-itemizers making cash donations to qualified charitable organizations. No income limitation applies to this deduction, thereby broadening access and encouraging wider participation in charitable giving.


The existing rule allowing deductions for cash gifts to public charities up to 60% of AGI is made permanent. 


For itemizing taxpayers, beginning in tax year 2026, the charitable deduction will only be allowed if total contributions exceed 0.5% of the taxpayer’s AGI. This introduces a new minimum threshold for deductibility of itemized charitable contributions.

Summary of OBBBA Charitable Donation Provisions

Provision

Description

Effective Year

Above-the-Line Deduction for Non-Itemizers

Deduction of up to $1,000 (single) / $2,000 (joint) for cash donations to public charities

2026

New Floor for Itemizers

Only donations exceeding 0.5% of AGI are deductible

2026

Corporate Donation Floor

Corporations can deduct donations only above 1% of taxable income (still capped at 10%)

2026

Cap for High-Income Taxpayers

Maximum tax benefit limited to 35% for taxpayers in the 37% bracket

2026

60% AGI Limit for Cash Gifts Made Permanent

Temporary rule (cash donations to public charities deductible up to 60% of AGI) is now permanent

2026

Tax Credit for Scholarship Donations

Non-refundable credit up to $1,700 for donations to scholarship-granting organizations (non-itemizers OK)

2027

 

10.  Estate and Gift Tax Exclusion Raised to $15M Per Taxpayer - Effective for 2026 

Removes the potential 50% reduction permanently – makes the higher exemption permanent. The $15 million per individual ($30 million for married couples) exclusion will be inflation-adjusted annually and also applies to the generation-skipping transfer tax exemption.

 

11.  Capital Gains Tax Step-Up Preserved 

 Maintains the step-up in basis for inherited assets, avoiding capital gains tax at death.

 

12.  Repeal Clean Energy Credits – Effective for Tax Year 2025 

Eliminates green-energy credits (EVs, solar, wind, hydrogen, etc.), with some as early as September 30, 2025.

Federal Energy Efficiency Tax Credits Overview

Item

Credit Type

Max Benefit

Expiration Date

Eligibility

Solar Panels

Residential Clean Energy

30% of the cost

12/31/2025

Yes

Battery Backup (≥3 kWh)

Residential Clean Energy

30% of the cost

12/31/2025

Yes

EV Charger*

EV Charger Installation

Up to $1,000

06/30/2026

ZIP-based

Heat Pump (HVAC)

Energy Efficiency Upgrade

Up to $2,000

12/31/2025

Yes

ENERGY STAR Refrigerator

Energy Efficiency Upgrade

Up to $600

12/31/2025

Yes

ENERGY STAR Windows

Energy Efficiency Upgrade

Up to $600

12/31/2025

Yes

Hot Water Heater (Tankless/Heat Pump)

Energy Efficiency Upgrade

$600–$2,000

12/31/2025

Yes

Solar-Integrated Roofing

Residential Clean Energy

30% of the cost

12/31/2025

If solar-integrated

Electric Oven

Not Qualified

N/A

No

Gas Stove

Not Qualified

N/A

No

Microwave

Not Qualified

N/A

No

Standard Roof (Shingles Only)

Not Qualified

N/A

No

Commercial Electric Vehicle

Commercial Clean Vehicle

Up to $40,000

09/30/2025

Business use

EV (New)

Clean Vehicle Credit

Up to $7,500

09/30/2025

If it meets income/price limits

EV (Used)

Used Clean Vehicle Credit

Up to $4,000

09/30/2025

If it meets income/price limits

*EV Charger Credit requires property to be in a qualified low-income or rural area for eligibility.

 

13.  529 Plan Expansion – Effective for 2025 

K–12 tuition withdrawal limit doubled up to $20,000 per year and expanded K–12 expenses to cover books, tutoring, test prep, online learning, and educational therapy.

Broadens scope beyond traditional college education, and 529 funds can now be used for vocational, trade, and credentialing programs. Tax-free rollovers from 529 plans to ABLE accounts are now permanently allowed.

ABLE account enhancements like Saver’s Credit and ABLE-to-Work contributions are also made permanent. No stated income cap on withdrawing funds from a 529 plan.

529 Plan Changes Summary - Most Effective 7/5/2025

Provision

Description

Effective Date

Notes

K–12 Education Limit Increase

Annual tax-free withdrawal limit raised from $10,000 to $20,000 per beneficiary

July 5, 2025

Applies to tuition at elementary & secondary schools

Expanded K–12 Expenses

Includes books, tutoring, test prep, online resources, and educational therapy

July 5, 2025

Includes students with disabilities

Post-Secondary Credentialing

529s can now fund vocational, trade, and certification programs

July 5, 2025

Includes program fees, books, supplies, and exams

529-to-ABLE Rollovers (Permanent)

Tax-free rollover to ABLE accounts is now a permanent provision

Immediately

Beneficiary must be the same or a qualified family member

Other ABLE Enhancements

Saver’s Credit and ABLE-to-Work contributions rules made permanent

Immediately

Improves long-term disability savings planning

State Tax Treatment

May vary by state — check for conformity with federal rules

Varies by state

Important for K–12 and new qualified expense categories

 

14. Health Savings Accounts (HSAs)

Permanent allowance for first-dollar telehealth coverage under high deductible health plans (HDHPs) without affecting HSA eligibility. Afforable Care Act (ACA) marketplace Bronze and Catastrophic plans now count as HDHPs for HSA eligibility. Up to $150/month (individual) or $300/month (family) in Direct Primary Care fees are now HSA-eligible.

OBBBA HSA Changes Summary

Provision

Description

Effective Date

Included in Final Bill?

Telehealth Coverage

Permanent allowance for first-dollar telehealth coverage under HDHPs without affecting HSA eligibility

Plan years starting in 2025

Yes

Bronze & Catastrophic Plans

ACA marketplace Bronze and Catastrophic plans now count as HDHPs for HSA eligibility

Jan 1, 2026

Yes

Direct Primary Care (DPC) Fees

Up to $150/month (individual) or $300/month (family) in DPC fees now HSA-eligible

Jan 1, 2026

Yes

HSA contributions after enrolling in Medicare Part A

Would have allowed contributions post-Medicare enrollment

No

Higher contribution limits for low-income individuals

Proposed expansion of contribution caps

No

Combined catch-up contributions for spouses

Would have allowed one combined catch-up for both spouses aged 55+

No

Fitness/gym expense reimbursement

Up to $500/year in gym or fitness fees using HSA

No

60-day retroactive reimbursements

Proposed coverage of medical expenses incurred before HSA opened

No

HSA eligibility with spousal  Flexible Spending Account (FSA) or clinic access

Would have removed disqualifications tied to spouse’s FSA or employer clinic

No

 

15. Mortgage Interest Deduction

 Permanently extends the TCJA’s limitation of qualified residence interest deduction for the first $750,000 in home mortgage acquisition debt.

 

Business Taxation in the OBBBA

 

1. 100% Bonus Business Depreciation Made Permanent

Allows for the immediate expensing of 100% of qualifying property costs, permanently restoring the full write-off for businesses without income limits. Applied to property acquired after January 19, 2025.

 

2. Full R&D Expensing
Permanently allows full expensing of domestic specified research or experimental

expenditures (SREs) starting with the 2025 taxable year, reversing prior amortization rules— available to all businesses, no income limitation. Small business taxpayers (i.e., those with average annual gross receipts of $31 million or less) can apply the change retroactively to taxable years beginning after December 31, 2021. In addition, all taxpayers who capitalized domestic research or experimental expenses between December 31, 2021, and January 1, 2025, may elect to accelerate the deduction of any remaining unamortized amounts over one or two years.

 

3.  Section 199A Qualified Business Income (QBI) Deduction 

Makes the 20% QBI deduction permanent and adds a minimum deduction of $400 for taxpayers with at least $1,000 of QBI from an active trade or business, adjusted for inflation. Beginning with the 2026 taxable year, the phaseout ranges for purposes of computing the §199A deduction are increased from $50,000 ($100,000 MFJ) to $75,000 ($150,000 MFJ), which means that the size of the phaseout range is now wider.

Phaseout Ranges by Filing Status

Filing Status

2025 Threshold Amount

2025 Phaseout Ends

Married Filing Jointly

$394,600

$494,600

All Other Taxpayers

$197,300

$247,300

 

4.  Qualified Opportunity Zone (QOZ): New Series Approved – Effective for Tax Year 2027  

Permanently extends Opportunity Zones and introduces a new series of designated zones with a 5-year deferral of original gain. Enhanced tax incentives for rural QOZs. 

Qualified Opportunity Zone Changes - 2027 Onward

Category

OBBBA Changes

Permanence & New Designation Cycle

• Makes QOZ program permanent
• New zone designations every 10 years (starting 2026, effective 2027–2036)

Rolling 5-Year Gain Deferral

• For investments from Jan 1, 2027 onward
• Gain deferral lasts 5 years or until asset sale

Basis Step-Ups

• Standard QOFs: 10% step-up at 5 years (no more 7-year bonus)
• QROFs (Rural Funds): 30% step-up at 5 years; only 50% substantial improvement required

Long-Term Hold Rules

• No capital post-acquisition gains tax after 10 years on QOZ investment - step-up to FMV for 10 to 30 years
• After 30 years, step-up is fixed; future gains are taxable

Zone Eligibility Changes

• Lowered income threshold: ≤70% of area median
• Eliminated contiguous tract rule
• Overall zone count reduced by ~20–22%

 

5.  Qualified Small Business Stock (QSBS): Expanded Reliefs

Existing rules unchanged. For new investments made after July 4, 2025, there are new rules. Potential for partial relief after as little as three years. 

Qualified Small Business Stock (QSBS) - Two Regimes

Feature

Pre-OBBB (Before July 4, 2025)

Post-OBBB (On or After July 4, 2025)

Holding Period Requirement

≥ 5 years for 100% gain exclusion

≥ 3 yrs → 50%, ≥ 4 yrs → 75%, ≥ 5 yrs → 100%

Exclusion Cap

$10M or 10× basis (whichever is greater)

$15M or 10× basis (indexed from 2027)

Issuer Gross Asset Limit

≤ $50M

≤ $75M (indexed from 2027)

Applies To

Stock issued before July 4, 2025

Only to stock issued on or after July 4, 2025

Other QSBS Rules (e.g., entity type, active business)

Unchanged

Unchanged

 

6.  Section 179 Expensing

Raises the maximum Section 179 expensing limit to $2.5 million, reduced by the amount by which the cost of qualifying property exceeds $4 million, both of which will be adjusted annually for inflation. 

 

7.  Corporate Charitable Contribution Deduction

Establishes a floor of 1% of taxable income to deduct charitable contributions, up to a ceiling of 10% of taxable income. Effective after December 31, 2025. 

If you have any questions about these updates, please contact BakerAvenue.