The Tax Cuts and Jobs Act (TCJA) of 2017 fundamentally changed the tax landscape for many households, particularly those in high-tax states like California. The legislation initially placed a $10,000 cap ($5,000 if married filing separately) on the federal deduction for state and local taxes.

Recent tax legislation in President Trump’s One Big Beautiful Bill has temporarily increased this cap to $40,000 for single and joint filers ($20,000 for married filing separately) for tax years 2025 through 2029.

However, this higher cap phases out for taxpayers with modified adjusted gross income above $500,000 ($250,000 for married filing separately), gradually phasing down to $10,000 at income levels of $600,000 and above. These thresholds increase by 1% annually through 2029. After 2029, the cap returns to $10,000 ($5,000 for married filing separately).

This means that even if you’re paying substantial amounts in California state income taxes and property taxes, there are limits to how much you can deduct on your federal return depending on your income level. Earn too little and there’s no benefit. Earn too much and there’s no benefit – which is why working with a wealth and tax professional that understands the nuances of a high-income, high-tax state like California is beneficial.

For many Silicon Valley tech professionals, particularly those in high-cost areas or with substantial income, the combined total of state income taxes and property taxes may still exceed the applicable federal cap. As a result, a portion of those state and local taxes paid doesn’t reduce federal taxable income.

This creates planning considerations regarding the timing and structure of your tax payments. At Traveka Wealth, we work specifically with high-earning tech professionals in Silicon Valley and the Los Altos area, helping them navigate their wealth and associated California tax complexities.

So, Who Does the SALT Deduction Cap Benefit?

Those who are high-earners in high-tax states that have a large amount of itemized deductions, high state income and property tax, and significant charitable donations.

The Timing Question: Prepaying State Income Taxes

One strategy that often comes up in tax planning discussions is the concept of prepaying state income taxes. The concept is straightforward: if you’re going to owe state taxes anyway, paying them before year-end could potentially accelerate the deduction.

However, the reality is more nuanced. The IRS has specific rules about when prepaid state income taxes are deductible. Generally, prepaid estimated state income taxes can be deductible in the year paid, but only to the extent you have a reasonable basis to expect to owe them based on your income and tax situation. You can’t simply overpay your state taxes to manufacture a larger deduction.

Additionally, if you’re already at the applicable federal SALT cap for your income level, prepaying state income taxes may not provide any federal benefit for that year. The relevant consideration is whether prepaying shifts deductibility to a year where it may have different tax implications, perhaps a year with lower income or different tax circumstances.

For tech professionals with variable income due to RSU vesting, stock option exercises, or fluctuating bonuses, this timing consideration can be particularly relevant. A large ISO exercise or concentrated RSU vesting event might create situations where state tax liability varies significantly year to year.

The Property Tax Prepayment Strategy

Another commonly discussed approach involves prepaying property taxes. Unlike state income taxes, property tax prepayment has some different considerations under current tax law.

Many counties and municipalities allow you to pay your property taxes before they’re officially due. The question is whether prepaying property taxes in December for the following year creates a deductible expense in the current year.

Following the 2017 tax reform, the IRS clarified that you can only deduct property taxes in the year they’re assessed and imposed by the taxing authority, not simply when you choose to pay them. This means that prepaying next year’s property taxes in December typically won’t create a current-year deduction if those taxes haven’t yet been assessed by your local government.

However, if your locality assesses property taxes in the fall and allows payment through the following spring, there may be different timing scenarios to evaluate. For example, if your property taxes are assessed in October but not due until April of the following year, paying them in December may allow you to claim that deduction in the current tax year, assuming you’re not already at the applicable federal cap limit.

Strategic Considerations

Effective tax planning requires looking beyond a single tax year. Here are factors to consider when evaluating SALT deduction strategies:

Your Multi-Year Tax Picture: Rather than optimizing for a single year, consider your expected tax situation over several years. Are you anticipating a significant income spike due to equity compensation events? Will you be in a higher or lower tax bracket in coming years? These considerations are relevant when evaluating whether acceleration or deferral strategies may apply to your situation.

The Interplay with AMT: For those dealing with Alternative Minimum Tax considerations, particularly relevant if you’re exercising Incentive Stock Options, state and local tax deductions aren’t allowed for Alternative Minimum Tax purposes, which may affect the analysis.

State-Specific Rules: Different states have different rules about estimated tax payments, when they’re due, and how they’re calculated. Understanding your specific state’s requirements is essential before implementing any prepayment strategy.

Documentation and Compliance: Any tax strategy requires proper documentation and compliance with both federal and state rules. This isn’t an area where assumptions should be made without proper research or guidance.

The Bigger Picture: SALT deduction optimization should be viewed as one component of your overall tax strategy, not an isolated decision. How does it interact with your retirement account contributions, charitable giving, equity compensation planning, and other elements of your financial plan?

When Prepayment Strategies May Be Relevant

While prepaying taxes isn’t a universal solution, there are scenarios where it may be relevant to consider:

• You’re in a year where your income is unusually low, and you expect to be below the SALT cap
• You’re transitioning between states and want to manage which state receives the deduction
• You’re approaching retirement or a career transition that will significantly change your income profile
• You have unusual one-time income that creates planning considerations across multiple tax categories

For tech professionals, these situations might arise during gap years between companies, sabbaticals, or when strategic timing of equity compensation events creates income variability. Traveka Wealth is a true independent fiduciary that legally operates in your best interest, therefore, we can work with you to see what situations can work best for your financial goals.

Planning for Uncertainty

One of the challenges with SALT deduction planning is the uncertainty about future tax law. The current elevated SALT cap is temporary, scheduled to revert to $10,000 after 2029. However, tax law can change at any time, and planning based solely on scheduled sunsets carries risk. Flexibility and adaptability remain important principles when developing tax strategies in an evolving legislative environment.

Have more questions about your wealth in a high state tax environment? Schedule some time to chat with us.

---

This material is for informational purposes only and does not constitute an offer to sell or the solicitation of an offer to purchase any security or investment product or services. The content of this material is provided solely for your personal use and shall not be deemed to provide access to any particular transaction or investment opportunity. Traveka Wealth, LLC (“Traveka”) does not intend the information in this material to be investment advice, and the information presented in this material should not be relied upon to make an investment decision. Any third-party information contained herein was prepared by sources deemed to be reliable but is not guaranteed.  All opinions expressed by the participants are solely opinions and should not be relied upon as potential or actual results.

Certain of the information contained herein has been obtained from third- party sources and has not been independently verified. It is made available on an “as is” basis without warranty. Any strategies or investment programs described in this presentation are provided for educational purposes only and are not necessarily indicative of securities offered for sale or private placement offerings available to any investor. 

The views expressed in the referenced materials are subject to change based on market and other conditions. This document contains certain statements that may be deemed forward-looking statements. Please note that any such statements are not guarantees of any future performance; actual results or developments may differ materially from those projected. Any projections, market outlooks, or estimates are based upon certain assumptions and should not be construed as indicative of actual events that will occur. Historical performance results for investment indices and/or product benchmarks have been provided for general comparison purposes only, and do not include the charges that might be incurred in an actual portfolio, such as transaction and/or custodial charges, investment management fees, or the impact of taxes, the incurrence of which would have the effect of decreasing historical performance results. If performance fees are stated, the performance returns are net of fees which include expense ratios and other fees of the underlying investments but does not include Traveka’s advisory fees. Traveka’s advisory fee will reduce the returns shown in this document.