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In the last decade, the American tax code has undergone the most significant legislative changes in its history. The individual tax provisions of the 2017 Tax Cuts and Jobs Act (TCJA) were slated to expire at the end of 2025, and taxpayers, financial advisors, and estate planners endured the fiscal cliff caused by the expiration of the provisions.

The individual provisions of the 2017 Tax Cuts and Jobs Act (TCJA) were scheduled to expire at the end of 2025, and taxpayers, financial advisors, and estate planners weathered the fiscal cliff. But the passing of the One Big Beautiful Bill Act (OBBBA) put an end to that trend.

Instead of letting tax rates return to previous, higher rates, the OBBBA has altered, extended, and immobilized some fundamental components of the federal tax code.

These changes, coupled with the official IRS inflation adjustments published by Revenue Procedure 2025-32, bring welcome changes for the 2026 tax year that will impact compliance, deductions, credit phase-outs, and planning for individuals and small business owners.

To avoid any unwelcome exposure and tax friction, it is essential to recognize these changes.

The most important OBBBA change for 2026 is that the 7 marginal tax rates in the TCJA (10%, 12%, 22%, 24%, 32%, 35%, 37%) have become permanent. This will stop the top marginal rate from resetting back to 39.6% automatically, ensuring that people have a solid foundation to build their wealth and plan for retirement over multiple years.

The percentages are the same as last year, but the IRS has made a strong effort to raise income thresholds to offset the impact of core inflation.

• Single Filers: The standard 24% tax bracket starts at $105,701 up to $201,775. This can help individual tax earners to shield more of their earned income from the top 32% bracket.
• Married Filing Jointly: For dual-income families, there are also expanded parameters, with income from $211,401 to $403,550 now in the 24% marginal band.

The brackets are matched with inflation indices to prevent “bracket creep,” which occurs when the rise in salaries due to inflation in the economy moves taxpayers into higher brackets, but they have no corresponding increase in purchasing power.

The OBBBA permanently adopts the higher standard deduction model and continues the trend of phasing out mass itemization. The standard deductions increase to:

• Married Filing Jointly: $32,200 (up from $31,500 in 2025)
• Single Filers / Married Filing Separately: $16,100 (up from $15,750 in 2025)
• Head of Household: $24,150

At the same time, personal exemptions that are statutory have been kept solidly at zero. A big win for older Americans, though, was the OBBBA’s implementation of a temporary $6,000 per person “Bonus” Senior Deduction for taxpayers over the age of 65. This special allowance is allowed for those who itemize as well as those who take the standard deduction.

It’s gradually being phased out, starting at a Modified Adjusted Gross Income (MAGI) of $75,000 for those filing singly, and $150,000 for those filing jointly, before it’s eliminated in 2029, providing much relief for low- and middle-income retirees.

The most popular change in the 2026 code is the overhaul of the State and Local Tax (SALT) deduction for high earners who live in high-tax states (like California, New York, New Jersey, and Illinois). The controversial $10,000 strict cap implemented under the TCJA has been completely replaced.

The new 2026 rules significantly increase the SALT deduction limit: The limit is $40,000 for married couples filing jointly and $20,000 for single filers.

This means that the state and local sales taxes, property taxes, and income taxes (on Schedule A) can be deducted at a much higher rate than they would be otherwise.

But, in order to ensure fiscal balance, the OBBBA has a strict income-driven phase-out mechanism. The increased $40,000 threshold will gradually decrease at a MAGI of >$500,000, returning to the strict $10,000 limit for a joint filer’s MAGI>$600,000.

As for the corporate and pass-through entity side, business tax strategy needs to shift in an instant with 100% Bonus Depreciation being completely revived. Prior to the TCJA step-down schedule, bonus depreciation was reduced to 80% and 60% in the last couple of tax years, causing businesses to let capital expenditures get written off over extended asset lifecycles.

For qualified property (including machinery and equipment, computers, and specialized vehicles) placed in service in 2026, the OBBBA (and other related provisions) will retroactively give full 100% first-year expensing. For a business owner trying to minimize his/her net corporate tax liability by hastening major equipment purchases, this is a great timing advantage.

Structural Visualization: 2025 vs. 2026 Tax Parameter Variations

Table 1.1 Comparison of Tax Parameters

In addition, the amount of Section 179 expensing has been increased, the Employer-Provided Child Support Tax Credit has been dramatically improved (from $150,000 to $500,000 ($600,000 for eligible small businesses), and new tax credits and deductions have been added to encourage workplace child support programs.

The family has gotten a huge extension of the generational wealth transfer. The current lifetime estate and gift tax exclusion is increased to an unprecedented $15,000,000 per individual for 2026.

Under proper portability arrangements, this means that a married couple can pass up to $30 million to beneficiaries that is entirely free of federal estate taxes.

At the same time, the Alternative Minimum Tax (AMT) exemption parameters are further expanding according to IRS indexing rules. The AMT exemption will increase to $90,100 for single taxpayers and $140,200 for married couples filing jointly in 2026.

Importantly, the phase-out thresholds are still high, with middle-to-upper-class professionals not accidentally falling into that parallel tax calculation system, since the thresholds are $1,000,000 for joint filers.

The OBBBA has announced a special income tax deduction for tips and overtime pay for blue-collar and service-industry workers in an unprecedented move to prevent wage compression due to inflation, which will be in effect through December 31, 2028.

Qualified Tips: Workers in industries that “customarily and regularly” receive tips can now deduct 100% of their qualified tip income from federal ordinary income tax, provided the tips are reported transparently to employers.

Overtime Compensation: The overtime deduction has a very steep phase-out for high earners to make sure that this relief doesn’t go to them and goes to the vulnerable economic groups. Once an individual’s MAGI exceeds $150,000 ($300,000 for joint filers), the deduction starts to be reduced by 10% for every dollar earned until it’s gone for those with high incomes.

The OBBBA acknowledges that the constantly rising standard deduction has lowered the tax benefit of giving to a charity, and has completely recalibrated the way that a charitable donation is reported on a tax return.

But for the millions of Americans who do not itemize their deductions on Schedule A, the 2026 tax code introduces a brand new ‘Above-the-Line’ Universal Charitable Deduction. This makes it easy for non-itemizers to claim cash contributions directly as a deduction from their gross income for up to $1,000 for a single person and $2,000 for married couples filing jointly.

On the other hand, the law strangles the rich and the liberal by adding a charitable floor of 0.5% of Adjusted Gross Income (AGI) to the fiscal budget. If you itemize, charitable gifts will only be deductible when they go beyond 0.5% of your AGI. Any amount less than this mathematical minimum may no longer be used to reduce taxable income.

The fiscal policy landscape is expected to be more stable in 2026. The OBBBA provides outstanding planning opportunities through the extension of the TCJA brackets, an increase in the SALT cap, and reinstatement of 100% business depreciation. The full benefits must be realized through proactive coordination with an authorized tax consultancy

The new $40,000 State and Local Tax (SALT) deduction is extremely beneficial, but comes with income limitations. The married filing jointly Modified Adjusted Gross Income (MAGI) phase-in limit is $500,000, and you can claim your full $40,000 of state income and property taxes on Schedule A.

But as soon as your joint MAGI crosses $500,000, the limit is decreased pro rata. The cap decreases gradually with every dollar you make over it, down to $600,000. Once you hit $600,000 of MAGI, the increased benefit disappears, and the allowable SALT deduction returns to the $10,000 flat deduction. The $20,000 limit for single filers is similarly reduced by a pro rata amount, reducing from $250,000 to $300,000 of individual MAGI.

The OBBBA’s new “Bonus” Senior Deduction is intended to offer targeted structural tax relief to senior citizens. In order to claim the full $6,000 deduction, a taxpayer would need to reach age 65 by December 31, 2026. One of the most significant benefits of this new item is that it offers structural flexibility – it’s not just for those with the standard deduction, it’s also available for itemizers who wish to take advantage of the $6,000 senior bonus.

But it is clearly linked to income restrictions. The deduction is still in full effect for those with single MAGI up to $75,000 and joint MAGI up to $150,000. An income above these thresholds will eliminate the credit, which would mean that wealthy retirees would be unable to benefit from the credit.

Instead of the cost being depreciated over a number of years, the OBBBA allows companies to claim the full benefit of the cost of certain capital purchases in the first year of use. This 100% write-off is available only if the property qualifies as the IRS defines “qualified property” under Section 168(k).

This includes qualified improvement property (QIP) for commercial interiors, manufacturing machinery, office furniture, and computer systems and off-the-shelf software with a 20-year or less useful life. In addition, certain commercial vehicles weigh more than 6,000lb, often dubbed the “heavy SUV loophole”, that qualify as long as they are used mainly for business purposes. Structural buildings and land acquisitions are not eligible.

Under the 2026 tax framework solidified by the OBBBA, the Child Tax Credit stands at a maximum of $2,200 per qualifying child aged 16 or younger, reflecting a modest inflation adjustment from prior periods. The credit remains highly accessible for middle-class families, as the phase-out thresholds are locked at a high baseline: single parents can earn up to $200,000 and married couples up to $400,000 before the credit begins to diminish.

However, for lower-income households with minimal or zero income tax liability, the refundable portion of the credit is legally capped at a lower threshold of $1,700 per child. To claim any portion of the refundable credit, the family must demonstrate earned income of at least $2,500 for the tax year.