Client Knowledge Center
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Federal and State Tax Filing Deadlines
Individual Returns (Form 1040)
Federal deadline: April 15, 2026
IRS Individual tax filing infoExtension requested by April 15, 2026 (Form 4868): extends deadline to October 15, 2026
IRS Extensions infoIf residing outside the US on April 15: automatic extension to June 15, 2026
IRS: International Individuals
Business Returns
Corporations (Form 1120): April 15, 2026
IRS Corporation tax infoS Corporations (Form 1120S) & Partnerships (Form 1065): March 17, 2026
IRS S Corporation info
IRS Partnership infoExtension (Form 7004): adds six months
Estimated Tax Payment Due Dates (Individuals and Businesses)
1st Quarter: April 15, 2026
IRS Estimated Tax info2nd Quarter: June 15, 2026
3rd Quarter: September 15, 2026
4th Quarter: January 15, 2026
Quarterly payments apply if you have income not subject to tax withholding (e.g., self-employment, investments).
IRS: Estimated taxes and payment methodsSee the IRS Tax Calendar for full federal compliance dates and deadlines:
IRS Tax Calendar -
New Tax Law Alerts & Key Changes:
SALT Deduction Cap Increased
For tax years 2025–2029, the cap on state and local tax (SALT) deductions rises from $10,000 to $40,000 per household ($20,000 per spouse if filing separately).*Cap increases to $40,400 in 2026, with a 1% increase for the subsequent years before returning to $10,000 in 2030.
The cap phases out for high earners (MAGI over $500,000).
Gambling Loss Deduction Change
Starting with the 2026 tax year, individuals may deduct only 90% of their gambling losses against winnings (previously 100%).Standard Deduction Increases
For 2026, the standard deduction rises to $32,200 for married couples filing jointly; $16,100 for single filers; $24,150 for heads of household.Charitable Deduction for Non-itemizer
Individuals who do not itemize can deduct up to $1,000 ($2,000 for married filing jointly) for qualified charitable contributions, effective with the 2026 tax year.Tip and Overtime Income Deductions
Temporary deductions introduced for tip and overtime income (specific limits and phaseouts apply), available tax years 2025–2028.Bonus Depreciation & Section 179 Expensing
Permanent 100% bonus depreciation for qualifying property after Jan 19, 2025.
Section 179 expensing increased (limit now $2.5 million).
Other Highlights
New tax-advantaged savings account for children (“Trump Accounts”) effective 2026.
Car loan interest deduction for new US-assembled vehicles available short-term (2025-2028).
Please reach out for personalized guidance on how these changes may affect your 2025–2026 returns, planning, and estimated payments.
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