Where OBBBA cuts the biggest tax

After months of debate surrounding President Donald Trump’s signature One Big Beautiful Bill (OBBBA), financial advisors and clients are finally feeling the impact this tax filing season.

Non-partisan, non-profit newsletter Tax Foundation Shows exactly how the changes will affect individual taxpayers across the country, providing the first geographically detailed and dollar-focused picture of the law’s implications for households and planning strategies.
Tax Foundation researchers analyzed the impact of the OBBBA by estimating national tax changes using a general equilibrium model. They then distributed those changes to counties based on 2022 IRS data, which shows how different taxpayers filed in each region.

Their approach accounts for key provisions of the OBBBA, including amendments Itemized deductions, charitable contributions, standard deductions and moreallowing them to provide a detailed country-wide view of who is earning or paying more under the law.

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Nationally, the average tax per filer would be $3,813 in 2026, according to data from the Tax Foundation, driven by a combination of individual and business tax changes under the bill.

Individual tax changes, such as expanded deductions and credits, account for about $2,272 of that average cut, while business tax provisions contribute about $1,541 per taxpayer. Tax Foundation researchers project that the average tax will fall to about $2,590 in 2030 as some deductions expire, then rise to about $3,163 by 2035 as inflation increases the nominal value of permanent provisions.

Despite the wide range of benefits, geographic differences are evident. Taxpayers in Wyoming ($5,478), Washington ($5,445) and Massachusetts ($5,259) will receive the largest average tax deductions in 2026, while filers in states like West Virginia ($2,448) and Mississippi ($2,386) will receive the smallest.
Teton County, Wyoming, in particular, will experience an extraordinary reduction of $39,316 per taxpayer on average, the highest in the nation, followed closely by Pitkin County, Colorado ($22,717) and Smith County, Utah ($15,477) — likely reflecting the law’s benefits in areas with high levels of family and business ownership. Conversely, more rural counties such as Loup County, Nebraska (about $731) will see a much smaller average decrease.

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According to the Tax Foundation, the anticipated tax relief stems from the OBBBA closure in the individual income tax provisions of the 2017 Tax Cuts and Jobs Act. By making these rates, brackets and discount rules permanent, the legislation prevents what would have been a tax increase for about 62% of filers in 2026 when the TCJA expires. In other words, a significant portion of the “cut” reflects the avoidance of higher taxes rather than the introduction of entirely new breaks.

But OBBBA also lies in additional comfort. Makes the law New Deductions for Earned Income and Overtime Payexpands the child tax credit and standard deduction, and creates business-friendly conditions such as 100% bonus depreciation and full cost perpetuation for domestic research and development.

An analysis of the tax base shows that both the individual and business segments are meaningful in reducing the average tax liability.

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With average tax cuts varying widely by geography and income group, Tax Foundation research indicates that all tax planning will be less effective under the OBBBA. Where a customer lives now plays a measurable role in how profitable they are, and that reality should shape the conversation this filing season and beyond.

This dynamic is particularly evident in state and local tax deficits. OBBBA temporarily Raises the salt cap $40,000 before returning to $10,000 after 2029, a change that Garrett Watson, director of policy analysis at the Tax Foundation, said would affect taxpayers differently by location.

Consumers in high-tax coastal states are likely to feel the change most acutely. For these families, the timing of government tax payments, income recognition and so on The decision to dispense A standard deduction versus a claim can significantly change the after-tax results.

High-income customers present another layer of complexity. While the law is locked in TCJA-era rates and Expands estate and gift exemptionsWhile reducing the threat of near-term tax increases, these same rules may shape long-term asset transfer strategies. With less pressure to transfer assets for estate tax reasons, advisors may need to rethink how charitable givingRetirement income and legacy goals are aligned with a more stable rate structure.

At the practical level, OBBBA is now fully embedded in the planning environment. Advisers should reassess whether itemizing remains viable under the revised SALT, mortgage interest and charitable deduction rules. Consumers with adjusted or overtime income will need more accurate reporting to get the new deductions, and high-net-worth households should review their estate documents in light of the expanded exemptions. As many regulations expire or are replaced in the coming years, ongoing monitoring—rather than one-time adjustments—will be necessary.