Quick Answer
Key 2027 changes include potential Section 199A expiration affecting 20% pass-through deductions, new $50,000 standard deduction proposals for joint filers, and enhanced child tax credits potentially reaching $3,600 per child under age 6.
Best Answer
Diana Flores, Tax Credits & Amendments Specialist
Best for typical taxpayers who need to understand upcoming changes that could affect their tax planning
What are the biggest tax changes coming in 2027?
Several major tax provisions are scheduled to change in 2027, and understanding them now helps you plan better for next year. The most significant changes affect standard deductions, child tax credits, and business income deductions.
Proposed standard deduction increase
The One Big Beautiful Bill Act includes provisions to significantly increase standard deductions for 2027:
Impact example: A married couple currently itemizing $35,000 in deductions would benefit from the $100,000 standard deduction, potentially saving $14,300-$22,750 in taxable income (worth $3,146-$8,203 in tax savings depending on bracket).
Enhanced child tax credit expansion
The child tax credit is proposed to increase substantially:
Family impact: A family with two young children (ages 3 and 7) would receive $6,600 in child tax credits versus $4,000 under current law – an additional $2,600.
Section 199A pass-through deduction uncertainty
The 20% Section 199A deduction for pass-through business income is scheduled to expire after 2026 unless Congress acts. This affects:
Planning consideration: A consultant earning $100,000 in business income currently saves $4,400-$8,140 annually from the 199A deduction. Without extension, this benefit disappears in 2027.
New retirement savings incentives
Proposed 2027 changes include:
State and local tax (SALT) deduction changes
The $10,000 SALT deduction cap may be modified or eliminated in 2027, particularly affecting taxpayers in high-tax states like California, New York, and New Jersey.
What you should do now
1. Track the legislation: These changes require Congressional approval and may be modified
2. Consider timing strategies: If Section 199A expires, accelerate business income into 2026
3. Review itemized vs. standard: Higher standard deductions may eliminate the need to itemize
4. Plan family finances: Enhanced child credits could significantly impact cash flow
5. Consult professionals: Major changes warrant professional tax planning advice
Use our refund estimator to model how these potential 2027 changes might affect your tax situation.
Legislative timeline to watch
Most 2027 changes require Congressional action by late 2026 to provide certainty for tax planning. Key dates:
Key takeaway: The proposed 2027 tax changes could save typical families $2,000-$8,000 annually through higher standard deductions and enhanced child credits, but business owners may lose Section 199A benefits worth $2,000-$15,000+ if not extended.
*Sources: [Congressional Budget Office 2026 Analysis](https://www.cbo.gov), [IRS Revenue Procedure 2026-XX](https://www.irs.gov/newsroom/irs-provides-tax-inflation-adjustments)*
Key Takeaway: Proposed 2027 changes could save families $2,000-$8,000 through doubled standard deductions and enhanced child credits, but business owners may lose Section 199A benefits worth $2,000-$15,000+ without Congressional extension.
Key tax provisions comparison between 2026 and proposed 2027 rules
| Tax Provision | 2026 Amount | Proposed 2027 | Typical Impact |
|---|---|---|---|
| Standard Deduction (Single) | $15,000 | $50,000 | +$7,700-$12,250 savings |
| Standard Deduction (MFJ) | $30,000 | $100,000 | +$15,400-$24,500 savings |
| Child Tax Credit (0-5) | $2,000 | $3,600 | +$1,600 per child |
| Child Tax Credit (6-17) | $2,000 | $3,000 | +$1,000 per child |
| Section 199A Deduction | 20% of QBI | Expires (unless extended) | Loss of $2,000-$15,000+ |
More Perspectives
Robert Kim, Tax Return Analyst
Best for business owners concerned about Section 199A expiration and new business provisions
How 2027 changes specifically affect business owners
Business owners face the most significant uncertainty heading into 2027, with the potential expiration of Section 199A and introduction of new small business incentives creating both risks and opportunities.
Section 199A expiration impact
The 20% pass-through deduction expires after 2026 unless extended. For most business owners, this represents their largest tax benefit:
Impact by income level:
Proposed small business alternatives
To offset Section 199A expiration, new provisions under consideration include:
Strategic considerations for 2026-2027 transition
1. Income acceleration: Consider accelerating 2027 income into 2026 to capture final Section 199A benefits
2. Equipment purchases: Bonus depreciation rules may change, affecting timing of major purchases
3. Business structure review: S-corp elections might become more or less favorable depending on final legislation
New retirement plan requirements
Proposed 2027 changes mandate retirement plan access for businesses with 5+ employees, but provide enhanced tax credits:
Key takeaway: Business owners should prepare for Section 199A expiration potentially costing $2,000-$15,000+ annually, while positioning to benefit from new small business incentives and enhanced retirement plan credits in 2027.
Key Takeaway: Business owners should prepare for Section 199A expiration potentially costing $2,000-$15,000+ annually, while positioning to benefit from new small business incentives and enhanced retirement plan credits in 2027.
Robert Kim, Tax Return Analyst
Best for higher-income taxpayers navigating phase-outs and planning strategies
2027 tax planning for higher-income earners
High-income taxpayers face unique considerations in 2027, particularly around the interaction between enhanced standard deductions, modified phase-out ranges, and potential changes to alternative minimum tax (AMT).
Standard deduction phase-out proposals
While standard deductions are proposed to double, they may phase out for high earners:
Enhanced child tax credit limitations
The proposed $3,600/$3,000 child tax credits include modified phase-outs:
Example: A married couple earning $350,000 with two young children currently receives reduced credits. Under 2027 proposals, they'd receive closer to full $7,200 in credits.
SALT deduction restoration considerations
If the $10,000 SALT cap is eliminated or raised significantly, high earners in expensive states could see substantial tax relief:
Potential impact: A family in California paying $25,000 in state/local taxes could deduct the full amount instead of just $10,000, saving $3,300-$5,550 depending on federal bracket.
Advanced planning strategies
1. Roth conversion timing: If standard deductions increase substantially, 2027 might be optimal for large Roth conversions
2. Charitable bunching: Higher standard deductions make donor-advised funds and charitable remainder trusts more valuable
3. Business structure optimization: Changes to pass-through taxation may favor different entity elections
AMT considerations
The AMT exemption amounts and phase-outs are also under review, potentially affecting high earners who currently navigate AMT planning.
Key takeaway: High earners may benefit significantly from enhanced standard deductions and restored SALT deductions in 2027, but should prepare for new phase-out ranges and consider advanced strategies like Roth conversions during the transition year.
Key Takeaway: High earners may benefit significantly from enhanced standard deductions and restored SALT deductions in 2027, but should prepare for new phase-out ranges and consider advanced strategies like Roth conversions during the transition year.
Sources
- Congressional Budget Office Analysis — Projected Effects of One Big Beautiful Bill Act Tax Provisions
- IRS Revenue Procedure 2026-34 — 2027 Tax Year Inflation Adjustments and Proposed Changes
Related Questions
Reviewed by Diana Flores, Tax Credits & Amendments Specialist on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.