Professional Disclaimer

This article is for informational purposes only and is not intended as tax, legal, or accounting advice. Tax laws and regulations—including 1099 thresholds and BOI reporting requirements—are subject to frequent change. As of March 26, 2025, all entities created in the United States (domestic companies) and their beneficial owners are exempt from the requirement to report beneficial ownership information (BOI) to FinCEN. Only foreign-formed companies that are registered to do business in the United States are still required to file. For the latest details, visit fincen.gov/boi. This content is current as of the date of publication but may be superseded by new legislation, FinCEN updates, or IRS guidance.

Reading this article does not create a professional-client relationship. Because every situation is unique, you should not rely on this information without consulting a qualified professional. For guidance tailored to your specific facts and circumstances, please contact ProTaxMasters.

For nearly a decade, business owners and high-income earners in states like New York, California, and New Jersey have lived under the shadow of a very small number: $10,000. That was the limit: the "cap": on how much you could deduct for state and local taxes (SALT) on your federal return. Whether you paid $15,000 or $150,000 in state income and property taxes, the IRS only let you write off ten grand.

But as we settle into the 2026 tax season, the conversation has shifted dramatically. The $10,000 ceiling hasn't just been raised; it has been shattered. We are now looking at a $40,000 SALT cap environment, and if you aren’t paying attention, you are likely leaving a massive amount of money on the table.

We all know how hard it can be to keep up with the ever-changing tax code while trying to run a profitable business. Between managing staff and keeping customers happy, the last thing you want to do is decipher IRS jargon. That’s why we’re breaking down exactly why this change is happening, who it helps, and the technical "gotchas" you need to watch out for.

The History: From the TCJA to Today

To understand why a $40,000 cap is such big news, we have to look back at the Tax Cuts and Jobs Act (TCJA) of 2017. Before 2017, there was no limit on the SALT deduction. If you paid it to the state or your local municipality, you could deduct it from your federal taxable income. The TCJA changed that, capping the deduction at $10,000 to help offset the costs of other tax cuts.

For many small business owners, this felt like a double tax. You earned the money, paid the state their cut, and then were forced to pay federal tax on the money you had already given to the state.

Fast forward to 2026. Through a series of legislative adjustments and scheduled increases, that $10,000 limit has quadrupled. For the 2026 tax year, the base expansion has reached $40,400. This represents one of the most significant shifts in individual and small business tax relief we’ve seen in years.

Why the $40,000 Cap is a Game Changer for Businesses

If you are a sole proprietor, a partner in a firm, or a shareholder in an S-Corp, this change hits your personal 1040 directly. We all know how hard it can be to justify staying in high-tax jurisdictions when the federal government won't recognize those costs. The new $40,400 limit provides a much-needed "breather."

What This Means for Texas (San Marcos) Residents Specifically

If you live in Texas, you might be thinking, “Wait: we don’t even have state income tax.” True: but SALT isn’t just income tax. For many homeowners and business owners in and around San Marcos (Hays County), the pain point is often property taxes (and sometimes local sales tax), not a paycheck withholding line.

Here’s why the $40,400 cap still matters locally:

1. High property taxes can drive you over the old $10,000 cap fast. Even without Texas state income tax, a primary residence (and any additional real estate you own personally) can generate property tax bills that quickly exceed $10,000: especially if your home value has increased in recent years.
2. It’s only helpful if you itemize deductions. The SALT deduction is part of Schedule A itemized deductions. If you take the standard deduction, the higher cap won’t directly change your federal return.
3. Some property taxes may be business-related (and not limited by SALT). If you own business property or have deductible real estate taxes properly treated as a business expense, those amounts may be handled outside Schedule A. The key is classifying them correctly and documenting usage.
4. A larger cap creates planning opportunities for homeowners and SMB owners. When the cap was $10,000, many San Marcos-area taxpayers with higher property taxes got “stuck” and couldn’t benefit from paying more. With a higher cap, more of what you already pay locally may actually reduce federal taxable income (subject to the phase-out rules discussed below).

Bottom line: Texas may skip the state income tax hit, but SALT still shows up for San Marcos residents through property taxes: and the expanded cap can make those payments more valuable on your federal return.

Here is what is included in that deduction:

1. State and Local Income Taxes: The taxes withheld from your pay or paid via estimated payments.
2. Real Estate Taxes: Both on your personal residence and, in many cases, the property used for your business if not fully deducted on Schedule C.
3. Personal Property Taxes: This includes those pesky annual registration fees for business vehicles based on value.

By allowing you to deduct up to $40,400, the government is effectively allowing business owners to shield a much larger portion of their income from federal taxation. For someone in the 32% or 35% tax bracket, moving from a $10,000 deduction to a $40,400 deduction could result in nearly $10,000 in actual cash savings on their tax bill.

The Technical Details: Annual Increases and the 2030 Sunset

It is important to realize that this isn't a permanent "fix." The current tax law has structured this as a temporary bridge. The cap is designed to increase by 1% annually through the end of the decade.

• 2026: $40,400
• 2027: $40,804
• 2028: $41,212
• 2029: $41,624
• 2030: The cap is currently scheduled to revert permanently back to $10,000.

This creates a high-stakes "window of opportunity." If you have been putting off major equipment purchases that trigger high sales tax, or if you have been debating whether to accelerate certain property tax payments, the next three years are your primary window to maximize these deductions before the door slams shut again in 2030.

The "Phase-Out" Trap: Do You Qualify?

Of course, the IRS rarely gives a gift without a few strings attached. The expanded SALT cap is subject to an income phase-out. This is where professional planning becomes essential.

The full $40,400 deduction is only available to those with a Modified Adjusted Gross Income (MAGI) of $505,000 or less (for the 2026 tax year). If you are married filing separately, that threshold drops to $252,500.

If your income exceeds these limits, your deduction begins to "phase out" at a rate of 30 cents for every dollar you earn over the threshold. However, there is a floor: your deduction will never fall below the original $10,000 limit.

For example, if you are a high-performing S-Corp owner taking home $600,000 in distributions and salary, you are roughly $95,000 over the threshold. Your $40,400 deduction would be reduced by $28,500 (30% of $95,000), leaving you with a deduction of $11,900. While still better than $10,000, it’s a far cry from the full $40,400.

Important Filing Dates and Deadlines

Today is Monday, March 23, 2026. If you are an S-Corp or Partnership owner, you probably know that the March 15th deadline for your entity returns has just passed. If you didn't file or didn't file an extension, now is the time to panic: just a little: and then call us.

For everyone else, the big dates are approaching fast:

1. April 15, 2026: Deadline for Individual 1040 returns and C-Corporation returns (Form 1120).
2. April 15, 2026: Deadline for your first 2026 Estimated Tax Payment.
3. October 15, 2026: Final deadline for those who filed an extension in April.

If you are looking to take advantage of the SALT cap changes, your 1040 filing (due April 15) is where the magic happens. Ensure your records for property taxes and state estimates are airtight. Check out our Quick-Start Guide to Tax Preparation Services to make sure you have everything ready before the clock strikes midnight on the 15th.

Strategic Planning: Beyond the SALT Cap

While the $40,400 cap is great news, smart business owners don't stop there. Many states have implemented Pass-Through Entity Tax (PTET) elections. This allows an S-Corp or Partnership to pay the state tax at the entity level.

Why does this matter? Because entity-level taxes are deducted on your Schedule E or K-1 before the income ever hits your personal return. This effectively bypasses the SALT cap entirely.

If your state has a PTET and your income is well above the $505,000 phase-out limit, the SALT cap expansion might not even be your best move. This is exactly why cookie-cutter tax software can’t replace a human expert. We all know how hard it can be to figure out which strategy yields the highest net savings without running the numbers both ways.

How ProTaxMasters Can Help

Navigating the transition from a $10,000 cap to a $40,400 cap: while dodging phase-out rules and considering PTET elections: is a lot to handle. At ProTaxMasters, we specialize in helping small business owners maximize their deductions while staying fully compliant with the latest IRS updates.

We don't just "do taxes"; we build strategies. Whether you need to look at our 2026 pricing options to get your return started or you want to read more about specific business strategies on our Tax & Bookkeeping Blog, we are here to support you.

Don't let the 2026 tax season be the year you overpay the government. The rules have changed in your favor for the first time in a long time.

Your Next Steps:

1. Gather your 2025 records: Specifically, look for all state income tax payments and property tax receipts.
2. Calculate your MAGI: Determine if you are nearing the $505,000 phase-out threshold.
3. Consult an expert: Reach out to the team at ProTaxMasters to ensure your entity structure is optimized for these new limits.

The window for the $40,400 cap is open, but it won't stay that way forever. Let's make sure your business gets every penny it deserves.

Check out what our clients are saying about our professional services here!