Imagine waking up on January 1, 2026, to find that your most reliable tax shield has been cut in half. For nearly a decade, the Tax Cuts and Jobs Act (TCJA) of 2017 has allowed the vast majority of Americans—especially our cross-border clients and self-employed professionals—to cruise through tax season using a historically high standard deduction. However, we are fast approaching a "tax cliff." According to the IRS, the TCJA provisions are set to expire at the end of 2025, which means the standard deduction for a married couple filing jointly is projected to drop from approximately $30,000 back down to roughly $16,000 (adjusted for inflation). For many of our clients at Zenith Financial Advisors, this represents a sudden $14,000 taxable income "loss." If you don't have a strategy to pivot back to itemizing, you could see your tax bill skyrocket. We are here to ensure that doesn't happen by uncovering the hidden deductions that are set to make a triumphant return.
Key Takeaways for the 2026 Tax Shift
- Standard Deduction Sunset: The expiration of TCJA will nearly halve the standard deduction, making itemization essential for high-earners and expats again.
- SALT Cap Removal: The $10,000 limit on State and Local Tax (SALT) deductions is scheduled to disappear, offering massive relief for those in high-tax jurisdictions.
- The 2% Floor Returns: Miscellaneous deductions like tax preparation fees and investment advice will once again be deductible.
- Charitable Bunching: Strategic use of Donor-Advised Funds (DAFs) can help you exceed the new, lower deduction thresholds.
- Cross-Border Compliance: While maximizing deductions, maintain FBAR and Form 8938 compliance to avoid steep penalties.
1. The Resurrection of the Unlimited SALT Deduction
For the last several years, one of the most painful aspects of the tax code for our clients in states like New York, California, or those with significant property holdings has been the $10,000 cap on State and Local Tax (SALT) deductions. Whether you paid $15,000 or $50,000 in state income and property taxes, the IRS only allowed you to deduct a flat $10,000 on Schedule A. According to the Tax Foundation, the SALT cap was one of the primary drivers that pushed taxpayers toward the standard deduction after 2017.
Per current IRS guidelines and the sunset provisions of the TCJA, this cap is scheduled to expire after December 31, 2025. This means that in 2026, you can likely deduct the full amount of your state income taxes (or sales taxes) and property taxes. For a cross-border professional living in a high-tax state but working in Canada, or an expat maintaining a US residence, this single change can often exceed the new, lower standard deduction on its own.
We recommend our clients begin auditing their 2024 and 2025 property tax assessments now. If you have the flexibility to defer a late 2025 property tax payment into early 2026, it may be worth significantly more as a deduction in the new tax environment. As the IRS notes in Publication 17, taxes must be paid in the year they are deducted, making the timing of these payments critical for the 2026 transition.
Source: IRS.gov - TCJA Comparison
2. Miscellaneous Deductions and the 2% AGI Floor
One of the most "hidden" losses under the current tax law was the suspension of miscellaneous itemized deductions. These were expenses that, in total, exceeded 2% of your Adjusted Gross Income (AGI). Starting in 2026, these are set to return. For our self-employed professionals and high-net-worth investors, this is a game-changer.
What falls under this category? According to historical IRS Form 2106 and Schedule A instructions, these include:
- Unreimbursed Employee Expenses: Travel, meals, and home office costs for W-2 employees (which were completely eliminated for most under TCJA).
- Investment Fees: Custodial fees, trust administration fees, and investment advisory expenses.
- Tax Preparation Fees: The very fees you pay Zenith Financial Advisors to navigate your complex cross-border filings.
- Legal Fees: Specifically those related to producing or collecting taxable income.
According to the IRS Data Book, audit rates for high-income individuals remained a focus in 2023, and meticulous record-keeping for these 2% deductions will be paramount in 2026. If your AGI is $200,000, any miscellaneous expenses over $4,000 become deductible. Between professional tax prep for complex Form 2555 (Foreign Earned Income Exclusion) and investment management, many of our clients will easily clear this hurdle.
Source: IRS.gov - IRS Data Book
3. Charitable Bunching: Outsmarting the New Thresholds
With the standard deduction dropping, your charitable giving strategy needs a complete overhaul. Under the current high standard deduction, many people give $5,000 a year but receive no extra tax benefit because they don't reach the $29,200 (2024 limit) threshold. In 2026, when the threshold drops to roughly $15,000 for couples, your $5,000 gift becomes much more impactful.
However, the real "pro move" we use at Zenith is "Charitable Bunching." This involves concentrating several years' worth of donations into a single tax year to blow past the itemization threshold. One of the best tools for this is a Donor-Advised Fund (DAF). You can contribute, for example, $30,000 to a DAF in 2026—taking the full deduction that year—and then distribute that money to your favorite charities over the next five years.
| Deduction Strategy |
2025 (Projected) |
2026 (Projected Sunset) |
| Standard Deduction (MFJ) |
~$30,000 |
~$16,000 |
| SALT Cap |
$10,000 Limit |
Unlimited (Pre-TCJA rules) |
| Mortgage Interest Limit |
$750,000 Debt |
$1,000,000 Debt |
4. Mortgage Interest: Reclaiming the $1 Million Limit
For those with larger mortgages, the TCJA was a significant blow, capping the deduction for interest on new mortgages to a principal amount of $750,000. For our clients in high-value markets like Vancouver, Toronto, San Francisco, or New York, this left a lot of money on the table. Per the sunset provisions, the mortgage interest deduction limit is scheduled to revert to $1,000,000 of principal indebtedness in 2026.
Furthermore, the deduction for Home Equity Line of Credit (HELOC) interest is expected to become more flexible. Currently, HELOC interest is only deductible if the funds are used to buy, build, or substantially improve the home that secures the loan. Post-2025, we anticipate a return to the broader rules that allowed for deductions on home equity debt used for other purposes, up to $100,000. We always advise our clients to consult IRS Publication 936 to ensure their specific loan structure meets the "secured debt" requirements.
PRO TIP: The "Pre-Sunset" Audit
Don't wait until April 2027 to see if you should have itemized. In late 2025, run a "shadow tax return" with our team. We can help you decide if you should accelerate medical expenses or defer property tax payments to maximize the benefits of the 2026 shift. Timing is the difference between a refund and a bill.
5. Medical Expenses: Navigating the 7.5% Threshold
Medical expenses have long been one of the hardest deductions to claim because they must exceed a certain percentage of your AGI to be deductible. While the TCJA briefly toyed with a 10% threshold, it settled at 7.5%. As we look toward 2026, this threshold remains a key part of the itemization puzzle. According to the IRS, deductible expenses include not just doctor visits, but also long-term care insurance premiums, specialized equipment, and even transportation costs for medical care.
For our cross-border clients, medical expenses paid in Canada or other foreign countries are generally deductible on your US return, provided they would be legal in the US. Per IRS Revenue Ruling 73-174, the key is ensuring you have contemporaneous records. If you are planning significant dental work, elective surgery, or purchasing new vision hardware, "bunching" these into 2026—when your standard deduction is lower—will make it much easier to clear that 7.5% AGI floor and recoup your losses.
6. The Expanded Casualty and Theft Loss Deduction
Currently, under the TCJA, you can only claim a personal casualty loss if it was attributed to a federally declared disaster. This has been a major point of contention for taxpayers who suffered losses from local fires, thefts, or accidents that didn't receive a federal designation. In 2026, this restriction is set to lift, reverting to the prior rules where any significant casualty loss (subject to a $100 floor and a 10% AGI threshold) can be itemized.
According to FinCEN data, international financial crimes and reporting errors are also on the rise. While a penalty for failing to file an FBAR (Foreign Bank Account Report) isn't a "casualty loss," the legal fees associated with resolving such disputes often fall under the miscellaneous deductions mentioned earlier. According to the IRS, over 12,000 FBAR-related civil penalties were issued in recent years, highlighting the need for professional oversight. If you are facing compliance issues, the 2026 rules may offer more pathways to deduct the costs of fixing them.
Source: FinCEN.gov - Reporting Statistics
7. Cross-Border Specifics: Foreign Taxes and Form 1116
For our clients at Zenith Financial Advisors, itemizing often goes hand-in-hand with the Foreign Tax Credit (FTC). While you have the choice between taking a deduction for foreign taxes paid on Schedule A or taking a credit on Form 1116, the credit is almost always more advantageous. However, with the lower standard deduction in 2026, the math changes.
Per the US-Canada Tax Treaty, we carefully analyze which method serves you best. In some niche scenarios, especially for those with high foreign property taxes that don't qualify for the credit, itemizing those taxes on Schedule A will become a viable strategy again in 2026. According to the CRA, the exchange of information between the US and Canada is more robust than ever, so ensuring every deduction is backed by a cross-border treaty position is essential for avoiding double taxation.
Common Mistakes to Avoid
- Ignoring the 2025/2026 Split: Many people treat tax years in isolation. The biggest mistake is failing to move deductible expenses from 2025 (where they may be "wasted" under a high standard deduction) into 2026 (where they help you itemize).
- Poor Record Keeping for Misc. Expenses: Since we haven't been able to deduct tax prep or investment fees for years, many have stopped tracking them. Start a folder for 2026 now to capture every receipt.
- Missing FBAR/Form 8938 Thresholds: In the rush to maximize deductions, don't forget your reporting. The $10,000 FBAR threshold (FinCEN Form 114) and the Form 8938 thresholds (FATCA) remain strict regardless of itemization changes. According to the IRS, the penalty for non-willful FBAR violations can exceed $15,000 per violation (adjusted for inflation).
- Forgetting the Pease Limitation: Before TCJA, there was a limit on itemized deductions for very high earners (the Pease Limitation). It is possible this could return alongside the other sunset provisions; we monitor this closely for our premium clients.
Frequently Asked Questions
Will the SALT cap definitely disappear in 2026?
As the law is currently written, yes. The TCJA provisions expire on December 31, 2025. Unless Congress passes new legislation to extend the cap, it will revert to the pre-2018 rules which allowed for an unlimited deduction of state and local taxes.
What is the standard deduction likely to be in 2026?
While the exact number depends on inflation adjustments made by the IRS in late 2025, experts project it will drop to roughly $15,000 - $16,000 for Married Filing Jointly and $7,500 - $8,000 for Single filers.
Can I deduct my Canadian property taxes on my US return in 2026?
Generally, under the post-sunset rules, foreign real property taxes that are not related to a trade or business are not deductible on Schedule A. However, we look for other ways to offset these costs, such as through the Foreign Tax Credit or business expense allocations if the property is used for rental income.
Is it better to take the Foreign Earned Income Exclusion or itemize?
These are not mutually exclusive, but they interact. Using the Foreign Earned Income Exclusion (Form 2555) reduces your AGI, which can make it easier to meet the 7.5% medical floor or the 2% miscellaneous floor. We run a side-by-side comparison for every client to determine the optimal path.
Ready to Navigate the 2026 Tax Cliff?
Don't let the sunset of the Tax Cuts and Jobs Act catch you off guard. Our team at Zenith Financial Advisors specializes in advanced tax planning for cross-border professionals and high-net-worth individuals. We'll help you build a multi-year strategy to maximize your deductions and protect your wealth.
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