
A Quick Tax Reference Guide for 2025-2026 U.S. Tax Filing
The 2025-26 tax season is upon us. With considerable tax changes, fading policies, new deductions, and updated limits, staying on top of your taxes can feel overwhelming. Our 2025/2026 Quick Tax Reference Guide has been designed with an aim to provide business owners and CPAs all the essential numbers and deadlines in one place. From standard mileage rates and retirement contribution limits to income tax brackets, Medicare premiums, and estate planning thresholds, you’ll find everything you need to make informed decisions, reduce risk, and plan strategically. Whether you’re a business owner planning corporate filings, a high-net-worth individual preparing for personal taxes, or an accounting professional looking for a quick reference, this simple and easy-to-use resource is designed to give you a clear picture of what’s ahead. Think of it as your roadmap for 2025/2026 taxes — it will save your time, help you avoid mistakes, and seize opportunities for maximum tax saving. [Note: This guide is based on official U.S. federal tax data for 2025/2026 from IRS, SSA, and CMS sources. We just intend to present it in a practical, easy-to-use format for businesses and individuals.] Filing Deadlines for 2025 Tax Returns Staying on top of filing deadlines is crucial to avoid penalties. This table summarizes the due dates for various returns, including extensions where applicable, so you can plan your filings efficiently. Type of Return (Calendar Year) Due Date Extended Due Date Employees – Form W-2* February 2 March 2 Recipient – Form 1099-NEC** February 2 N/A Recipient – Form 1099-MISC*** February 17 March 17 Partnerships, LLCs – Form 1065**** March 16 September 15 S Corporations – Form 1120S**** March 16 September 15 Estates and Trusts – Form 1041***** April 15 October 1 FBAR – FinCen Form 114 April 15 October 15 Corporations – Form 1120 April 15 October 15 Individuals – Form 1040 April 15 October 15 Exempt Organizations – Form 990 May 15 Nov 16 Employee Benefit Plans – Form 5500 Jul 31 Oct 15 * W-2 due to employee and SSA** Non-employee compensation*** Other payments**** Also applies to Schedules K-1, K-2, K-3 for equity holders***** File Form 7004 for automatic 5½-month extension Individual Tax Rate Schedules Understanding your tax brackets is essential for accurate planning. The following tables break down the 2025–2026 rates for different filing statuses to help you calculate your potential tax liability. 2025 Taxable Income Tax Rate / Tax Calculation Not over $23,850 10% of taxable income $23,850 – $96,950 $2,385 + 12% of the amount over $23,850 $96,950 – $206,700 $11,157 + 22% of the amount over $96,950 $206,700 – $394,600 $35,302 + 24% of the amount over $206,700 $394,600 – $501,050 $80,398 + 32% of the amount over $394,600 $501,050 – $751,600 $114,462 + 35% of the amount over $501,050 Over $751,600 $202,154.50 + 37% of the amount over $751,600 2026 Taxable Income Tax Rate / Tax Calculation Not over $24,800 10% of taxable income $24,800 – $100,800 $2,480 + 12% of the amount over $24,800 $100,800 – $211,400 $11,600 + 22% of the amount over $100,800 $211,400 – $403,500 $35,932 + 24% of the amount over $211,400 $403,500 – $512,450 $82,048 + 32% of the amount over $403,500 $512,450 – $768,700 $116,896 + 35% of the amount over $512,450 Over $768,700 $206,583.50 + 37% of the amount over $768,700 Head of Household For 2025: Taxable Income Tax Not over $17,000 10% $17,001–$64,850 $1,700 + 12% over $17,000 $64,851–$103,350 $7,442 + 22% over $64,850 $103,351–$197,300 $15,912 + 24% over $103,350 $197,301–$250,500 $38,460 + 32% over $197,300 $250,501–$626,350 $55,484 + 35% over $250,500 Over $626,350 $187,031.50 + 37% over $626,350 2026: Taxable Income Tax Not over $17,700 10% $17,701–$67,450 $1,770 + 12% over $17,700 $67,451–$105,700 $7,740 + 22% over $67,450 $105,701–$201,750 $16,155 + 24% over $105,700 $201,751–$256,200 $39,207 + 32% over $201,750 $256,201–$640,600 $56,631 + 35% over $256,200 Over $640,600 $191,171.50 + 37% over $640,600 Unmarried Individuals (Single) 2025: Taxable Income Tax Not over $11,925 10% $11,926–$48,475 $1,192.50 + 12% over $11,925 $48,476–$103,350 $5,578.50 + 22% over $48,475 $103,351–$197,300 $17,651 + 24% over $103,350 $197,301–$250,525 $40,199 + 32% over $197,300 $250,526–$626,350 $57,231 + 35% over $250,525 Over $626,350 $181,769.75 + 37% over $626,350 For 2026: Taxable Income Tax Not over $12,400 10% $12,401–$50,400 $1,240 + 12% over $12,400 $50,401–$105,700 $5,800 + 22% over $50,400 $105,701–$201,775 $17,966 + 24% over $105,700 $201,776–$256,225 $41,024 + 32% over $201,775 $256,226–$640,600 $58,448 + 35% over $256,225 Over $640,600 $192,979.25 + 37% over $640,600 Married Filing Separately For 2025: Taxable Income Tax Not over $11,925 10% $11,926–$48,475 $1,192.50 + 12% over $11,925 $48,476–$103,350 $5,578.50 + 22% over $48,475 $103,351–$197,300 $17,651 + 24% over $103,350 $197,301–$250,525 $40,199 + 32% over $197,300 $250,526–$375,800 $57,231 + 35% over $250,525 Over $375,800 $101,077.25 + 37% over $375,800 For 2026: Taxable Income Tax Not over $12,400 10% $12,401–$50,400 $1,240 + 12% over $12,400 $50,401–$105,700 $5,800 + 22% over $50,400 $105,701–$201,775 $17,966 + 24% over $105,700 $201,776–$256,225 $41,024 + 32% over $201,775 $256,226–$384,350 $58,228 + 35% over $256,225 Over $384,350 $103,291.75 + 37% over $384,350 Social Security & Self-Employment Tax Limits Social Security and Medicare taxes have annual limits. They can impact your contributions and planning. This table highlights the 2025–2026 thresholds for both employees and self-employed individuals. Tax 2025 2026 OASDI wage base $176,100 $184,500 HI wage base No limit No limit SECA OASDI earning base $176,100 $184,500 SECA HI No limit No limit Additional 0.9% Medicare Tax applies over certain thresholds. Retirement Contribution Limits Maximize your contributions to reduce taxable income and boost long-term savings. The following table shows 401(k), 403(b), SIMPLE, and IRA limits, including catch-up provisions for those 50 and older. 401(k), 403(b), 457, and SIMPLE Plans For 2025: Plan Type Elective Deferral Limit Catch-up Contribution (Age 50+) §401(k) $23,500 $7,500 §403(b) $23,500 $7,500 §457 $23,500 $7,500 SIMPLE $16,500 $3,500 For 2026: Plan Type Elective Deferral Limit Catch-up Contribution (Age 50+) §401(k) $24,500 $8,000 §403(b) $24,500 $8,000 §457 $24,500 $8,000 SIMPLE $17,000 $4,000 Traditional and Roth IRA This table outlines 2025–2026 figures for both traditional and Roth accounts,








