PTET Filing Deadlines: 2026 Complete Guide

PTET Filing Deadlines: 2026 Complete Guide

PTET Filing Deadlines: 2026 Complete Guide

For the 2026 tax year, PTET filing deadlines are among the most valuable — and most time-sensitive — opportunities for high-net-worth business owners. Missing a pass-through entity tax (PTET) election deadline can cost you tens of thousands of dollars in lost deductions. This guide breaks down state-by-state PTET filing deadlines, payment schedules, and strategy tips so you can take full advantage of this powerful SALT workaround in 2026.

This information is current as of 5/19/2026. Tax laws change frequently. Verify updates with the IRS or your state tax authority if reading this later.

Table of Contents

• Key Takeaways
• What Is a PTET and How Does It Work?
• Why Do PTET Filing Deadlines Matter in 2026?
• What Are the 2026 PTET Filing Deadlines by State?
• How Does Michigan’s Flow-Through Entity Tax Work in 2026?
• When Are PTET Quarterly Estimated Payments Due in 2026?
• How Does the One Big Beautiful Bill Act Affect PTET Strategy?
• What Are the Most Common PTET Deadline Mistakes to Avoid?
• Uncle Kam in Action: Michigan Business Owner Saves Big
• Next Steps
• Related Resources
• Frequently Asked Questions

Key Takeaways

• PTET filing deadlines vary widely by state — missing one can forfeit the entire 2026 election year benefit.
• The PTET works as a SALT cap workaround, authorized by IRS Notice 2020-75, letting entities pay and deduct state income tax at the entity level.
• Michigan’s Flow-Through Entity Tax (FTE) requires an annual election and quarterly estimated payments in 2026.
• The One Big Beautiful Bill Act includes an expanded SALT cap — but PTET strategy remains powerful for pass-through owners.
• High-net-worth owners of S corporations, partnerships, and multi-member LLCs should confirm their 2026 PTET election status now.

What Is a PTET and How Does It Work?

A pass-through entity tax — commonly called a PTET — is a state-level income tax imposed on business entities rather than on individual owners. This distinction matters enormously. The federal SALT deduction cap, set at $10,000 per household under the Tax Cuts and Jobs Act, restricts how much state income tax individual taxpayers can deduct. However, a tax paid at the entity level bypasses this limit entirely.

The IRS blessed this strategy in Notice 2020-75, confirming that state and local income taxes paid by partnerships and S corporations are deductible as business expenses on the entity’s federal return. As a result, the tax effectively reduces each partner’s or shareholder’s share of taxable income. For high-income owners, this can translate to a significant federal tax reduction.

Who Is Eligible for the PTET?

Most states limit PTET participation to specific entity types. Generally, eligible entities include:

• S corporations
• Partnerships (including general and limited partnerships)
• Multi-member LLCs taxed as partnerships
• Some states include single-member LLCs or sole proprietorships

C corporations are generally excluded because they already pay tax at the entity level. Furthermore, many states require that all owners or partners consent to the election. This consent requirement is one reason why PTET elections require careful planning among co-owners and investors.

How Does the Deduction Flow to Owners?

Here is how the PTET deduction typically flows:

• The entity elects to pay state income tax at the entity level.
• That payment reduces the entity’s net income on the federal return.
• Each owner’s K-1 reflects lower taxable income passed through to them.
• The owner receives a state tax credit on their individual state return to avoid double taxation.

For example, consider a partnership with two equal partners each earning $500,000 in pass-through income from a state with a 6% income tax. Without a PTET election, each partner owes $30,000 in state taxes individually but can only deduct $10,000 federally. With a PTET election, the entity pays $60,000 in state taxes, reducing each partner’s federal taxable income by $30,000. At a 37% federal rate, each partner saves approximately $7,400 per year in federal taxes. Over time, this adds up quickly. That is why tracking proactive tax strategies like PTET elections is essential for high-income pass-through owners.

Why Do PTET Filing Deadlines Matter in 2026?

PTET filing deadlines are firm. Unlike many other tax elections, most states do not allow late or amended PTET elections. If you miss the deadline for the 2026 tax year, you typically must wait until 2027. For a partnership earning $2 million in annual income, missing the election could mean forfeiting $30,000 or more in federal tax savings.

Moreover, PTET deadlines are distinct from regular tax filing deadlines. In many states, the PTET election must be made by a specific date — often before the tax return is due or even before the tax year ends. Therefore, waiting until April is usually too late. Business owners, their CPAs, and high-net-worth investors with pass-through entities need to act early in the year.

Three Types of PTET Deadlines to Track

Understanding which type of deadline applies to your entity is critical:

• Election deadline: The date by which the entity must formally opt into the PTET regime for the current year.
• Estimated payment deadlines: Quarterly due dates for making payments to avoid underpayment penalties.
• Return filing deadline: The date by which the PTET return or related schedule must be filed with the state.

Each state handles these dates differently. Consequently, owners with multi-state pass-through entities face a patchwork of deadlines. This complexity is exactly why professional tax advisory services focused on pass-through strategies are in high demand for 2026.

What Are the 2026 PTET Filing Deadlines by State?

More than 36 states have now enacted some form of pass-through entity tax. Each state sets its own rules for the election window, payment schedule, and return deadline. Below is a summary of major states with active PTET programs for the 2026 tax year. Always verify deadlines with your state’s department of revenue, as legislatures can change rules mid-year. You can find official guidance at IRS.gov business tax resources.

2026 PTET Deadline Comparison — Key States

State	Program Name	2026 Election Window / Key Deadline	Eligible Entities	Notes
New York	NY PTET	March 15, 2026 (first quarter estimated payment)	Partnerships, S corps	Annual election; return due March 15
California	CA PTE Tax	June 15, 2026 (estimated payment due)	Qualified S corps, partnerships	Must pay by June 15 to claim credit
New Jersey	NJ BAIT	Annual election; quarterly installments	Partnerships, S corps	Elective; individual credit available
Michigan	MI FTE Tax	Annual election; Q1 est. payment April 15, 2026	S corps, partnerships, LLCs	Election must be made timely each year
Illinois	IL PTE Tax	Annual election; return due April 15	Partnerships, S corps	Mandatory for some entities
Connecticut	CT PTE Tax	Mandatory; quarterly payments required	Partnerships, S corps	One of the first mandatory PTET states
Colorado	CO PTE Tax	Annual election; estimated payments required	Partnerships, S corps	Active 2026 legislation changes possible
Massachusetts	MA PTE Surcharge	Annual return deadline April 15	Qualified PTEs	2% surcharge on income over $1M applies

Note: These dates reflect established patterns from prior years and available 2026 guidance. Always confirm current-year deadlines with your state’s department of revenue or a qualified tax professional. Many states publish updates on their official tax policy pages throughout the year.

States Without a PTET (or Limited Programs)

Not every state has enacted a PTET. States without an individual income tax — such as Texas, Florida, Nevada, Wyoming, and Washington — generally do not offer a PTET because there is no state income tax to pay at the entity level. However, Washington’s capital gains tax has created new planning considerations for some business owners in 2026.

If you own interests in multiple pass-through entities across different states, proper entity structuring and careful PTET coordination across jurisdictions becomes essential to maximize your overall deduction.

How Does Michigan’s Flow-Through Entity Tax Work in 2026?

Michigan enacted its Flow-Through Entity Tax as part of a broader strategy to help business owners in the state bypass the $10,000 federal SALT cap. For 2026, Michigan FTE participants must make the annual election and follow a quarterly payment schedule. Ann Arbor business owners and Michigan entrepreneurs operating S corporations or partnerships should confirm their FTE election status immediately if they have not done so.

Ann Arbor’s business community — home to a vibrant mix of technology firms, professional services practices, and real estate partnerships — has increasingly leveraged the Michigan FTE to offset the impact of the SALT cap. If your Ann Arbor-based entity has not yet reviewed its 2026 FTE options, use our Ann Arbor Small Business Tax Calculator to estimate your potential 2026 savings before the election window closes.

Michigan FTE Tax Rate and Mechanics

Michigan’s FTE tax applies the state individual income tax rate to the entity’s Michigan-source income. For 2026, the Michigan individual income tax rate is 4.05% (verify the current rate with the Michigan Department of Treasury as the legislature has adjusted this rate in recent years). The tax is paid by the entity, reducing each member’s or shareholder’s share of pass-through income on their federal Schedule K-1.

Each Michigan owner then claims a credit on their individual Michigan income tax return for their share of the FTE tax paid. This structure prevents double taxation while still delivering the federal deduction benefit. In practice, the net Michigan tax cost to owners is near zero — but the federal deduction remains fully intact.

Michigan FTE 2026 Key Dates to Know

• Annual election: Must be made for each tax year; typically filed with the Michigan Department of Treasury
• Q1 estimated payment: April 15, 2026
• Q2 estimated payment: June 15, 2026
• Q3 estimated payment: September 15, 2026
• Q4 estimated payment / annual return: January 15, 2027 / March 31, 2027

Always confirm these exact dates with the Michigan Department of Treasury, as administrative changes can affect due dates. Underpayment of FTE estimated taxes can trigger penalties, just like federal estimated tax underpayments.

When Are PTET Quarterly Estimated Payments Due in 2026?

Quarterly estimated payments under PTET programs generally mirror federal and state individual estimated tax schedules. However, there are important differences. Failing to make adequate quarterly PTET payments in 2026 can result in underpayment penalties at the entity level — in addition to any individual-level penalties on underpaid estimated income taxes.

2026 Quarterly PTET Estimated Payment Schedule

Quarter	Income Period	Typical Due Date (2026)	Notes
Q1	Jan 1 – Mar 31	March 15 or April 15, 2026	Varies by state; NY uses March 15
Q2	Apr 1 – May 31	June 15, 2026	CA requires a single payment by June 15
Q3	Jun 1 – Aug 31	September 15, 2026	Most states follow this date
Q4	Sep 1 – Dec 31	January 15, 2027	Or final return by March/April 2027

California’s PTET operates differently from most states. To claim the pass-through entity tax credit for the 2026 tax year, the entity must make a payment of at least $1,000 by June 15, 2026. Moreover, the total payment for 2026 must equal the lesser of 100% of the prior year’s PTET liability or 90% of the current year’s liability. Missing this June 15 date is one of the costliest PTET errors California business owners make.

New York PTET Quarterly Payment Rules

New York requires a PTET election and mandates quarterly estimated payments. The election must be made through the New York Department of Taxation and Finance’s online portal. For 2026, if you made a NY PTET election, your Q1 estimated payment was due March 15, 2026. Subsequent payments follow on June 16, September 15, and December 15, 2026. The annual PTET return is due March 15, 2027.

Entities that underpay their New York PTET estimated taxes face a penalty based on the prevailing interest rate set by the New York Department of Taxation and Finance. Proper planning through a qualified tax preparation and filing service helps avoid these costly penalties.

How Does the One Big Beautiful Bill Act Affect PTET Strategy?

The One Big Beautiful Bill Act was one of the most significant pieces of tax legislation in recent years. According to the AICPA’s 2026-2027 Priority Guidance Plan recommendations, the law includes an expanded cap on state and local tax deductions. Specifically, the SALT deduction cap was raised significantly from the prior $10,000 limit — a change that has implications for high-income taxpayers and their PTET planning.

Does an Expanded SALT Cap Make PTET Less Valuable?

Not necessarily — and here is why. The expanded SALT cap under the One Big Beautiful Bill Act is reported to phase out at higher income levels. High-net-worth individuals earning above certain thresholds may face a reduced individual SALT deduction even under the new law. For these taxpayers, the PTET remains a powerful strategy because it delivers an above-the-line business deduction rather than an itemized deduction subject to caps and phase-outs.

Furthermore, the AICPA has specifically requested IRS guidance on how the new SALT provisions interact with existing PTET rules. Until that guidance is finalized, cautious planning recommends maintaining PTET elections in 2026 rather than abandoning them in anticipation of new rules that may not fully materialize as expected. Consult a specialized tax advisor to model both scenarios before making a final decision.

2026 SALT Deduction Landscape — Key Points

• The One Big Beautiful Bill Act expanded the SALT cap, but phase-outs apply at high income levels.
• PTET deductions are taken at the entity level — not subject to the individual SALT cap.
• IRS guidance on the interaction between new SALT rules and PTET is pending for 2026.
• Owners with multiple entities or high combined incomes benefit most from PTET in 2026.
• For 2026, the 2026 standard deduction for married filing jointly is $32,200, up from prior years — reinforcing the importance of above-the-line deductions like PTET.

What Are the Most Common PTET Deadline Mistakes to Avoid?

Even experienced business owners make avoidable PTET errors. These mistakes are especially costly because most states do not allow relief for late PTET elections. Below are the top mistakes to watch out for in 2026 and how to prevent them through proactive tax planning strategies.

Mistake 1: Assuming Last Year’s Election Carries Over

Many states require a new PTET election each year. Unlike some recurring tax elections, PTET elections do not automatically renew. However, a few states — including New York — allow a continuing election until it is revoked. Always confirm your state’s rules before assuming your 2025 election is still active for 2026.

Mistake 2: Missing the Estimated Payment Deadlines

Making the PTET election is only the first step. You must also make timely estimated payments throughout 2026 to avoid penalties. In California, the single June 15 deadline catches many owners off guard. In Michigan, missing any quarterly payment triggers underpayment interest on the shortfall.

Mistake 3: Failing to Coordinate with Co-Owners

Many states require unanimous or majority consent from all partners or shareholders to make a PTET election. If even one partner objects — or is simply not informed — the election may be invalid. Therefore, early communication among all owners is essential. Build PTET election consent into your annual partnership or operating agreement review process.

Mistake 4: Ignoring Multi-State Obligations

Business owners with pass-through income from multiple states must track each state’s PTET rules independently. Each state’s election window, payment schedule, and credit mechanism differs. A Michigan-based partnership with rental income in Illinois and consulting income in New York must separately navigate three PTET regimes for 2026. Working with a business tax specialist who understands multi-state PTET compliance is critical for avoiding missed deadlines.

Mistake 5: Overlooking the Individual Credit Claim

The PTET only avoids double taxation if owners properly claim their proportionate credit on their individual state tax return. Failing to claim this credit results in paying state income tax twice — once at the entity level and again at the individual level. Review your state’s individual tax return instructions carefully. For complex situations, resources at the Tax Policy Center provide helpful background on how these credits work across jurisdictions.

For Ann Arbor business owners and Michigan entrepreneurs, now is the right time to model your 2026 PTET strategy. Use our Small Business Tax Calculator for Ann Arbor to project your estimated tax savings before the next quarterly deadline.

 

 

Uncle Kam in Action: Michigan Business Owner Saves Big

Client Snapshot: Marcus is a 52-year-old managing partner of a mid-sized Ann Arbor technology consulting firm. The firm operates as a Michigan LLC taxed as a partnership with four partners.

Financial Profile: The firm generates approximately $3.2 million in annual revenue. Marcus’s share of partnership income is $620,000 per year. Before working with Uncle Kam, Marcus itemized on his individual federal return but was capped at the $10,000 SALT deduction limit — despite paying over $25,000 in Michigan income taxes each year.

The Challenge: Marcus had heard about the Michigan Flow-Through Entity Tax but was uncertain whether it was worth the administrative burden. His prior CPA had not discussed PTET elections. As a result, Marcus had forfeited the FTE benefit entirely in a prior year — losing approximately $37,000 in potential federal deductions. He came to Uncle Kam frustrated and determined not to miss another deadline.

The Uncle Kam Solution: Uncle Kam’s team immediately confirmed all four partners were willing to consent to the Michigan FTE election for 2026. The team then calculated the optimal quarterly estimated payment amounts to avoid underpayment penalties while maximizing the 2026 deduction. Additionally, the team identified that two partners also had New York-source income from a real estate partnership — triggering separate NY PTET obligations that needed to be tracked.

The Results:

• Tax Savings (Michigan FTE): $22,940 in additional federal deductions for Marcus alone, generating approximately $8,488 in federal tax savings at his 37% marginal rate.
• Tax Savings (NY PTET): An additional $4,200 in federal savings from the New York election.
• Total Federal Tax Savings (Marcus): $12,688 in the first year — compared to zero the prior year.
• Investment: Uncle Kam’s annual advisory engagement was $4,800.
• First-Year ROI: 164% return on investment ($12,688 saved / $4,800 invested).

Marcus’s story is not unique. Business owners across Michigan miss PTET deadlines every year — not from carelessness, but because these rules are genuinely complex and change frequently. Proactive planning with the right advisor turns PTET filing deadlines from a source of anxiety into a reliable annual tax savings system. See more results like Marcus’s at Uncle Kam’s client results page.

Next Steps

PTET filing deadlines move fast. Here is what you should do right now to protect your 2026 tax savings:

1. Confirm your 2026 PTET election status with your tax advisor for every state where your entity has taxable income.
2. Schedule your quarterly estimated payments for the remainder of 2026 — including the June 15 and September 15 deadlines.
3. Coordinate with all co-owners to ensure unanimous consent for any pending elections in your state.
4. Model your PTET savings against the new expanded SALT cap under the One Big Beautiful Bill Act to determine the optimal strategy for your entity.
5. Connect with Uncle Kam for a personalized PTET strategy review — explore our 2026 tax strategy services or check the Uncle Kam Tax Calendar for upcoming deadlines.

Use our Ann Arbor Small Business Tax Calculator to get a quick estimate of your 2026 Michigan FTE savings before your next quarterly payment deadline.

Related Resources

• 2026 Tax Strategy Planning for Business Owners
• Entity Structuring for Pass-Through Owners
• Advanced Tax Strategies for High-Net-Worth Individuals
• Uncle Kam 2026 Tax Deadline Calendar
• Tax Preparation and Filing Services

Frequently Asked Questions

What happens if I miss the PTET filing deadline in my state?

In most states, missing the PTET election deadline means you lose the benefit for the entire tax year. There is no late-election relief. Furthermore, if you made estimated payments but missed the formal election, those payments may be refunded or misapplied. The loss can be substantial — potentially tens of thousands of dollars in forfeited federal deductions. Plan well ahead of each state’s deadline and work with a professional who tracks these dates proactively through a solid tax advisory relationship.

Can both an S corporation and a partnership elect PTET in the same state?

Yes, in most states. The PTET is available to eligible pass-through entities regardless of whether they are taxed as S corporations or partnerships. However, the specific rules, tax rates, and credit mechanisms can differ between entity types. For example, some states calculate PTET differently for S corporations versus partnerships based on their respective state tax treatment. Review your state’s PTET statute carefully, or consult with a tax professional who specializes in multi-entity structures.

How does the One Big Beautiful Bill Act change my PTET strategy in 2026?

The One Big Beautiful Bill Act raised the individual SALT deduction cap, which reduces — but does not eliminate — the value of PTET for some taxpayers. High-income owners above the phase-out thresholds still benefit significantly from paying state taxes at the entity level. Additionally, IRS guidance on how the new SALT cap interacts with PTET is still pending as of May 2026. Do not abandon your PTET election based on incomplete guidance. Instead, model both scenarios with your advisor and make an informed, data-driven decision.

Does Michigan’s FTE election automatically renew each year?

No. Michigan’s Flow-Through Entity Tax election must generally be made on an annual basis. The entity’s designated representative or authorized officer completes the election through the Michigan Treasury Online portal. Once the election is made, the entity is obligated to make quarterly estimated payments throughout the year. Missing the election or failing to make adequate payments can result in underpayment penalties. Consult the Michigan Department of Treasury website for the most current 2026 election procedures and confirm the exact deadline with your tax professional each year.

Is PTET strategy worth the complexity for smaller pass-through entities?

It depends on the state tax rate and the owners’ federal marginal rates. Generally, the PTET strategy delivers meaningful savings when the entity’s state taxable income exceeds $100,000 and the owners are in the 32% to 37% federal tax bracket. For smaller entities, the compliance cost may exceed the benefit. However, in high-tax states like California (13.3% top rate), New York (10.9% top rate), and New Jersey (10.75% top rate), even mid-size pass-through entities can realize significant net savings. Use the Uncle Kam tax calculators to run a quick cost-benefit analysis for your specific situation.

What IRS guidance governs the PTET deduction at the federal level?

The foundational federal guidance is IRS Notice 2020-75, which confirmed that state and local income taxes imposed on and paid by a partnership or S corporation are deductible in computing the entity’s non-separately stated income or loss. This notice made clear that these payments are not subject to the individual $10,000 SALT cap. As of 2026, final IRS regulations on this topic have not yet been issued, but Notice 2020-75 remains in effect as the controlling guidance. Stay current with any IRS updates that may finalize these regulations.

Last updated: May, 2026