The 2025 U.S. tax year, a.k.a. Tax Season 2026, brings significant and wide-ranging changes that affect individuals, businesses, and multi-state taxpayers. This guide compiles the most important federal updates, highlights areas where states may differ, and provides direct links to IRS forms and authoritative guidance so taxpayers can find answers quickly.

Overview — the new federal baseline
Congress enacted a major tax package in 2025 that adjusted many 2017 Tax Cuts and Jobs Act (TCJA) era rules and added new taxpayer-focused benefits. The IRS has published summaries and fact sheets describing these changes in their official website. Please click the link: https://www.irs.gov/newsroom/one-big-beautiful-bill-provisions

We have compiled and simplified the important key changes and benefits that all taxpayers need to know.

Individual Taxpayer Highlights
Standard deduction increases (tax year 2025, filed 2026):

  • Single / Married Filing Separately: $15,750 
  • Head of Household: $23,625 
  • Married Filing Jointly: $31,500

These amounts were increased for inflation and adjusted in law. Higher standard deductions mean more taxpayers will find the standard deduction is advantageous compared to itemizing. Official IRS inflation-adjustment guidance for exact brackets and thresholds is here: https://www.irs.gov/newsroom/irs-releases-tax-inflation-adjustments-for-tax-year-2026-including-amendments-from-the-one-big-beautiful-bill

Additional Senior Deduction (Temporary Benefit)
For tax years 2025–2028, taxpayers aged 65+ may receive a bonus deduction (an additional $6,000 on top of the usual age/blind additional standard deduction). This raises the effective standard deduction for many seniors and retirees.

Child and Family Credits
The Child Tax Credit (and related family credits) received modest increases and continues to have income-based phaseouts. The Child Tax Credit is worth up to $2,200 per qualifying child. If taxpayers have little or no federal income tax liability, they may qualify for the Additional Child Tax Credit (ACTC), up to $1,700 per qualifying child, depending on the income. Taxpayers must have earned income of at least $2,500 to be eligible for the ACTC.

Taxpayers qualify for the full amount of the Child Tax Credit for each qualifying child if they meet all eligibility factors and the annual income is not more than $200,000 ($400,000 if filing a joint return). Parents and guardians with higher incomes may be eligible to claim a partial credit.

For complete eligibility rules, see: IRS — Child Tax Credit: https://www.irs.gov/credits-deductions/individuals/child-tax-credit

Worker-Focused Provisions
The 2025 law introduced targeted exclusions and deductions for certain types of earned pay, including capped exclusions for qualifying tip income and for some overtime wages. These provisions are limited by income phaseouts and by other eligibility tests. Visit the IRS— Worker deductions & provisions fact sheets for detailed rules: https://www.irs.gov/newsroom/one-big-beautiful-bill-act-tax-deductions-for-working-americans-and-seniors

Gig Economy Reporting (1099-K, 1099-NEC)


1099-K threshold: The new law restored the higher reporting threshold for third-party settlement organizations — generally the $20,000 and 200 transactions rule in applicable periods. See the IRS FAQ on Form 1099-K: https://www.irs.gov/newsroom/irs-issues-faqs-on-form-1099-k-threshold-under-the-one-big-beautiful-bill-dollar-limit-reverts-to-20000

1099-NEC & 1099-MISC: The contractor reporting landscape changed in the legislation. Filers and payers must review IRS instructions for current thresholds and filing rules. IRS — About Form 1099-NEC:https://www.irs.gov/forms-pubs/about-form-1099-nec

Important reminder: Even if the gig economy workers do not receive a 1099, all taxable income must be reported on your return.

Business & Pass-Through Entity

100% bonus depreciation: The legislation made bonus depreciation more favorable in tax season 2026, allowing many qualifying business assets placed in service to be expensed immediately rather than depreciated over many years. This change enhances cash-tax planning for businesses that purchase equipment, machinery, and qualifying property.

R&D expensing: Domestic research costs became more favorably treated, allowing many businesses to deduct qualifying R&D expenses in the year incurred. This is especially important for tech, manufacturing, and life sciences companies.

International tax changes (GILTI / NCTI): The international provisions were revised, including changes to the treatment of Global Intangible Low-Taxed Income (GILTI), sometimes referred to in guidance by new names (e.g., Net CFC Tested Income). Multinational corporations should work closely with international tax advisors to model the changes.

Opportunity zones: The law adjusted the rules around Opportunity Zone investments and made certain provisions permanent, encouraging long-term capital deployment into designated communities.


Key Dates: https://www.irs.gov/individual-tax-filing

  • Federal filing deadline (tax year 2025 returns): April 15, 2026
  • Typical extension filing deadline (if extension approved): October 15, 2026

Primary IRS forms and pages (clickable links):

Other helpful IRS pages:

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