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Tax Advisor Weekly — September 12, 2025

Harness · September 12, 2025

As new rules from Trump’s “Big Beautiful Bill” take shape, the IRS has begun previewing major changes to the 2026 W-2 and W-4 forms, including new codes for tip and overtime deductions. At the same time, legal and economic clouds are gathering: the Supreme Court has agreed to fast-track a decision on the legality of Trump’s sweeping tariffs, which could trigger billions in taxpayer refunds. And fresh revisions from the Bureau of Labor Statistics reveal that nearly 1 million jobs were overcounted earlier this year—adding urgency to calls for monetary easing.

This week’s top stories:

  • New W-2 and W-4 Forms Preview OB3 Tax Changes
  • Supreme Court to Hear Trump Tariff Challenge
  • Treasury: Refunds Coming if Tariffs Ruled Illegal
  • BLS Revises Jobs Data Down by 911,000
  • Bessent Denies Tariffs Hurt Consumers, Despite Data



Let’s read more.

1. New W-2 and W-4 Forms Preview OB3 Tax Changes


USA Today by Medora Lee

The IRS has released draft versions of the 2026 W-2 and W-4 forms to accommodate Trump’s new tax law provisions, including untaxed tips, overtime pay deductions, and enhanced deductions for seniors.

Key updates:

  • Box 14b: Will now track “Treasury tipped occupation code”
  • Box 12 codes:

    • TA – Employer contributions to Trump Accounts
    • TP – Total tips exempt under new law
    • TT – Deductible overtime pay



The W-4 now includes new lines for:

  • Car loan interest
  • Increased senior deductions
  • Higher thresholds for SALT and medical expenses



What it means: Advisors and payroll teams should prepare for increased complexity in reporting and withholding processes starting in 2026.

Read the full article

2. Supreme Court Will Fast-Track Trump Tariff Case


Yahoo Finance

Following a federal appeals court ruling that many of Trump’s “reciprocal” tariffs were illegal, the Supreme Court has agreed to hear the case this fall—setting up a rare, high-speed review.

Why it matters:

  • Trump wants the EU to impose matching 100% tariffs on China and India
  • If the Court rules against him, trade deals may unravel
  • Trump says losing the case would mean “unwinding” deals with Japan, South Korea, and others



Advisor takeaway: Be prepared for client questions about cross-border strategy and potential retaliatory tariffs ahead of the ruling.

Read the full article

3. Treasury: Half of Tariff Revenue May Be Refunded


CNN by Auzinea Bacon

Treasury Secretary Scott Bessent has confirmed that if the Supreme Court rules against Trump’s tariffs, the U.S. would refund about half of the collected customs duties.

Details:

  • Refunds could total tens of billions
  • Bessent insists “numerous legal avenues” still exist
  • Economist Joe Brusuelas: Tariffs are slowing hiring in goods-producing sectors



Advisor insight: Watch closely for potential refund mechanisms and advise affected importers and exporters to prepare documentation in case rebates are issued.

Read the full article

4. BLS Revises Jobs Down by 911,000


New York Times

The Bureau of Labor Statistics’ annual benchmark revision shows that the economy added 911,000 fewer jobs through March 2025 than initially reported.

Why this matters:

  • The jobs revision spans Biden’s last months and early Trump tenure
  • May support Fed case for cutting interest rates
  • Manufacturing, retail, and hospitality sectors saw the largest revisions



Fed response: Governor Waller had cited the expected revision as a reason to support a September rate cut. Now that it’s confirmed, it strengthens the argument for easing.

Read the full article

5. Bessent Denies Tariffs Are a “Tax on Americans”


The Guardian

In a weekend interview, Treasury Secretary Scott Bessent refused to admit that Trump’s tariffs were impacting American consumers—despite corporate warnings and consumer price impacts.

Context:

  • John Deere, Nike, and Black & Decker have warned of major cost increases
  • Manufacturing jobs have dropped by 42,000 since April
  • Bessent claims tariffs are about “balance,” not revenue



Advisor takeaway: Expect continued questions about how tariffs flow through to pricing—and watch for Q4 economic data to reflect broader impacts.

Read the full article

Your Takeaway This Week


This week’s tax and policy news highlights the compounding complexity advisors must manage: new tax form codes, ongoing tariff litigation, revised economic data, and a Treasury Department forced to prepare for massive refund payouts.

As policies shift and agencies reorient, your clients need more than compliance—they need clarity. From W-2 changes to supply chain exposure, it’s time to make strategic planning personal, detailed, and future-ready.

Ready to Elevate Your Tax Strategy?


Talk to Harness today to see how our platform supports modern advisors and their clients.

Schedule an introduction today.


Disclaimer:

Tax related products and services provided through Harness Tax LLC. Harness Tax LLC is affiliated with Harness Wealth Advisers LLC, collectively referred to as “Harness Wealth”. Harness Wealth Advisers LLC is a paid promoter, internet registered investment adviser. Registration does not imply a certain level of skill or training. This article should not be considered tax or legal advice and is provided for informational purposes only. Please consult a tax and/or legal professional for advice specific to your individual circumstances. This article is a product of Harness Tax LLC.

Content should not be regarded as a complete analysis of the subjects discussed. Certain information contained herein has been obtained from third party sources and such information has not been independently verified by Harness Wealth. No representation, warranty, or undertaking, expressed or implied, is given to the accuracy or completeness of such information. Harness Wealth does not assume any responsibility for the accuracy or completeness of such information. Harness Wealth does not undertake any obligation to update the information contained herein as of any future date.

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