After years of limitation under the Tax Cuts and Jobs Act (TCJA), SALT deductions have undergone significant changes. As a CPA with over 15 years of experience guiding clients through complex tax landscapes, I've seen firsthand how proper SALT planning can substantially impact your bottom line.

Let me share something most taxpayers miss: The $10,000 SALT deduction cap that frustrated high-tax state residents since 2018 has been modified for 2025. The inflation-adjusted cap now stands at $12,500 for individual filers and $25,000 for married couples filing jointly. This represents a meaningful opportunity that requires strategic planning to fully leverage.

"The key to effective SALT planning isn't just knowing the deduction limits—it's understanding how to integrate them into your comprehensive tax strategy across multiple jurisdictions."

For 2025, the SALT deduction encompasses:

• State and local income taxes
• State and local property taxes
• State and local sales taxes (if you choose this instead of income taxes)

What surprises many of my clients is learning that these limitations apply differently depending on filing status, income level, and the nature of the taxes paid. The strategy that works for your neighbor might not be optimal for your situation.

Strategic Approaches to Maximize Your SALT Benefits

Income vs. Sales Tax Deduction Election

If you live in a state with no income tax (Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, or Wyoming), the choice is straightforward—deduct your sales taxes. However, for everyone else, this requires careful analysis.

Between you and me, most tax software defaults to the higher of income or sales tax without considering strategic timing. I recently helped a client who had made a major purchase (boat) save an additional $1,800 by electing to deduct sales tax for that specific year while planning to use income tax deductions the following year.

For 2025, use this decision framework:

The truth about tax planning is that you need to reconsider this election annually—particularly if your income fluctuates or you make significant purchases.

AMT Considerations for 2025

The Alternative Minimum Tax (AMT) system remains relevant for higher-income taxpayers in 2025. While fewer taxpayers are affected than in past decades, those with substantial SALT deductions may still trigger AMT calculations.

For 2025, the AMT exemption amounts have increased to:

• $87,500 for single filers
• $137,400 for married filing jointly

The phase-out thresholds have also increased to $610,000 (single) and $1,220,000 (married filing jointly).

I've found that clients with income in the $400,000-$700,000 range often benefit from multi-year tax projections to determine optimal SALT payment timing that minimizes AMT exposure.

Timing Strategies for SALT Payments

Strategic timing of SALT payments can significantly impact your federal tax liability. Here's what most people miss: December and January payments require careful consideration.

For property taxes, many jurisdictions offer payment in installments. Let me share a secret from my practice: If your total SALT deductions already exceed the cap, accelerating or deferring property tax payments across tax years can help optimize deductions.

Consider this case study: A client with consistent $18,000 annual property taxes and $15,000 state income taxes was effectively losing $23,000 in deductions each year due to the cap. By paying property taxes for the first half of each year in January and the second half in December, they maintained the same cash flow pattern while consolidating more deductions into alternating tax years. This "bunching" strategy increased their deductions by $14,000 over a two-year period.

For estimated state income tax payments, the IRS has specific rules about deductibility in the year paid. Paying your Q4 estimated state taxes in December rather than January can accelerate the deduction—provided you're not exceeding the SALT cap or triggering AMT.

Entity Structure Considerations for Business Owners

Business owners face unique SALT planning opportunities through entity structure selection. Since the TCJA, pass-through entity owners have felt the sting of limited SALT deductions on business income passed to their personal returns.

Here's a practical approach I recommend to business-owner clients:

• S-Corporation Strategy: If you operate as an S-corporation, establishing a reasonable salary can help optimize FICA taxes while potentially redirecting some state tax burden to the entity level.
• Entity-Level Tax Elections: More than 25 states now offer pass-through entity tax (PTET) elections that effectively bypass the federal SALT cap by shifting the tax to the entity level. These workarounds have received IRS blessing (Notice 2020-75) and remain viable for 2025.

I recently helped a client with $300,000 in business income save $9,400 in federal taxes by making the Connecticut pass-through entity tax election. Their business paid the state tax, received a federal deduction at the entity level (not subject to the SALT cap), and the owner received a state tax credit on their personal return.

Residence Planning: Multi-State Considerations

For clients with flexibility in their living arrangements, strategic residency planning can yield substantial tax savings. With remote work becoming permanent for many professionals, this opportunity has expanded significantly.

Let me walk you through how this works:

• Domicile Establishment: Establishing tax domicile in a lower-tax state requires more than just purchasing property. You must demonstrate clear intent through:
  • Physical presence (typically 183+ days)
  • Voter registration and driver's license changes
  • Banking and financial account relocations
  • Community involvement
  • Personal property movement
• Statutory Residency Management: Even with domicile established elsewhere, exceeding presence thresholds in high-tax states (like New York's 183-day rule) can trigger statutory residency status and full taxation.

One client who splits time between Florida and New York meticulously tracks their location and maintains detailed documentation of travel, saving approximately $27,000 annually in state income taxes.

"The most significant SALT savings I see often come not from deduction optimization but from strategic residency planning—particularly for retirees and remote workers who have geographic flexibility."

SALT Workarounds: Entity-Level Tax Elections

States continue to refine their PTET programs, and for 2025, they represent one of the most powerful SALT strategies for business owners.

For states offering these elections, consider these implementation steps:

• Eligibility Assessment: Verify entity type eligibility in your state (typically partnerships and S-corporations qualify)
• Election Timing: Most states require annual elections with specific deadlines
• Cash Flow Planning: Entity-level taxes may accelerate payment timing compared to individual estimated payments
• Owner Consent: Many states require unanimous owner consent
• Accounting Method Adjustments: Accrual-method taxpayers may have different timing considerations

I recommend creating a multi-year projection before making these elections, as they can affect basis calculations and may not benefit all owners equally if they have differing tax situations.

Property Tax Optimization Strategies

Property taxes often represent the largest SALT expense for many clients. Here are proven strategies to ensure you're not overpaying:

• Assessment Challenges: Approximately 20-40% of properties are assessed above their proper value. A successful appeal typically reduces taxes for multiple years going forward.
• Exemption Verification: Many jurisdictions offer various exemptions including:
  • Homestead exemptions
  • Senior citizen reductions
  • Veterans benefits
  • Agricultural use adjustments
  • Energy improvement credits
• Improvement Timing: Planning the timing of property improvements can help manage assessment increases and related tax burdens.

I recently helped a client challenge their property assessment in Bergen County, New Jersey, resulting in a $3,200 annual property tax reduction. The process required gathering comparable sales data, photographs documenting property condition issues, and a professional appraisal—but the return on investment was realized within four months.

Charitable Giving as a SALT Alternative

Charitable giving represents an excellent alternative for taxpayers limited by the SALT cap. For those who are charitably inclined, these strategies deliver multiple benefits:

• Donor-Advised Funds (DAFs): These allow for contribution bunching while maintaining consistent giving patterns. You receive the deduction in the year of contribution but can distribute to charities over time.
• State Tax Credit Programs: Many states offer tax credits for contributions to qualifying organizations. These programs essentially convert nondeductible state taxes into fully deductible charitable contributions.

One particularly effective strategy I've implemented with clients is utilizing state tax credit programs for educational institutions. In South Carolina, for example, contributions to certain scholarship organizations generate a dollar-for-dollar state tax credit (subject to limitations) while creating a federal charitable deduction.

"The intersection of state tax credit programs and federal charitable deductions creates one of the few legitimate 'double-dip' opportunities in the tax code. When properly structured, these strategies can significantly outperform direct SALT payments."

Planning for Major Life Events

Major life transitions offer critical SALT planning opportunities that, if missed, cannot be recovered. Here's how to approach common scenarios:

• Home Purchase/Sale: Property tax assessments often reset upon sale. Research assessment practices in potential locations before purchasing. In some jurisdictions, property tax increases are capped for existing owners but reset upon sale—a hidden cost of moving.
• Retirement: State taxation of retirement income varies dramatically. For 2025, several states have modified their retirement income exclusions, creating planning opportunities for recent and soon-to-be retirees.
• Business Sale: Business sale proceeds may create substantial one-time state tax liabilities. Pre-sale residency planning (established well in advance) can significantly impact after-tax proceeds.

Conclusion

Effective SALT planning requires a holistic approach that considers federal and state interactions, timing strategies, and structural opportunities. The most impactful tax planning happens throughout the year, not just at filing time.

The 2025 changes to the SALT landscape present meaningful opportunities for taxpayers who approach them strategically. While these strategies can significantly reduce your tax burden, they require careful implementation and documentation.

Ready to implement these strategies for your specific situation? Schedule your personalized SALT planning session today to ensure you're not leaving money on the table.