PTET Filing Deadlines: 2026 Guide for Business Owners

PTET Filing Deadlines: 2026 Guide for Business Owners

PTET Filing Deadlines: 2026 Guide for Business Owners

Understanding PTET filing deadlines is one of the most powerful moves a high-net-worth business owner can make in 2026. The pass-through entity tax (PTET) — also called a flow-through entity tax — lets partnerships, S corporations, and LLCs pay state income tax at the entity level. This unlocks a federal deduction that bypasses the $10,000 SALT cap. Missing a PTET deadline means leaving real money on the table. Our 2026 tax strategy team breaks down every deadline you need to know.

Table of Contents

• Key Takeaways
• What Is PTET and Why Does It Matter in 2026?
• How Does the PTET Election Save Federal Taxes?
• What Are the Key PTET Filing Deadlines for 2026?
• What Are the Michigan Flow-Through Entity Tax Deadlines for 2026?
• Who Should Make the PTET Election in 2026?
• What Happens If You Miss the PTET Deadline?
• How Does the One Big Beautiful Bill Act Affect PTET in 2026?
• Uncle Kam in Action
• Next Steps
• Related Resources
• Frequently Asked Questions

Key Takeaways

• PTET filing deadlines vary by state but commonly fall on March 15, April 15, or June 15 for 2026.
• The PTET election lets partnerships and S corps bypass the $10,000 federal SALT deduction cap.
• IRS Notice 2020-75 confirms that PTET payments are deductible at the entity level, not the owner level.
• Michigan’s 2026 Flow-Through Entity Tax quarterly payment due dates are April 15, June 15, September 15, and January 15, 2027.
• Missing a PTET deadline can cost high-income owners tens of thousands of dollars in lost federal deductions.

What Is PTET and Why Does It Matter in 2026?

The pass-through entity tax — commonly called PTET — is one of the most significant tax planning tools available to business owners today. A PTET works like this: instead of state income taxes flowing to each owner’s individual return, the business entity pays them directly. The entity then deducts the payment as a business expense at the federal level. This is a legal workaround to the $10,000 State and Local Tax (SALT) deduction cap imposed by the Tax Cuts and Jobs Act.

For high-net-worth business owners, this distinction is huge. Without a PTET election, your state income taxes are capped at $10,000 on your personal return. With a PTET election, the entity deducts those same taxes with no dollar cap. IRS Notice 2020-75 confirmed this treatment is valid. The IRS officially blessed the PTET strategy in November 2020. That guidance still stands for the 2026 tax year.

Which Entity Types Can Use PTET?

Not every business qualifies. You need to check your state’s rules carefully. However, most states with PTET laws allow the following entity types to elect in:

• S corporations (most common users)
• Partnerships
• Multi-member LLCs taxed as partnerships
• Some states also allow single-member LLCs with a state-level election

C corporations generally do not use PTET because they already pay taxes at the entity level. The PTET strategy is specifically designed for pass-through entities whose owners would otherwise be stuck with the SALT cap. As of 2026, more than 30 states have enacted a PTET law, making this strategy widely available across the country.

Why 2026 Is a Critical Year for PTET

The 2026 tax year is especially important for PTET planning. The high-net-worth business owners we serve are navigating a complex landscape. The One Big Beautiful Bill Act — President Trump’s signature legislation — passed and contains provisions related to SALT deductions. The American Institute of CPAs has already submitted 193 recommendations to the IRS for the 2026-2027 Priority Guidance Plan. Many of those recommendations address PTET mechanics directly. However, as of May 2026, existing PTET elections remain valid and important. Do not wait for the legislation to settle before acting on your 2026 PTET deadlines.

How Does the PTET Election Save Federal Taxes?

Here is the core mechanic. Without a PTET, an S corporation owner with $600,000 in pass-through income pays Michigan state income tax on their personal return. Federal law caps their SALT deduction at $10,000. However, if their entity makes the Michigan Flow-Through Entity Tax election, the entity pays and deducts the state tax above $10,000. That deduction flows back to each owner as reduced taxable income on the K-1.

A Simple PTET Tax Savings Example

Consider this scenario for the 2026 tax year. An S corporation owner in Michigan earns $500,000 in pass-through income. Michigan’s state income tax rate is 4.25%. Here is what the math looks like:

Scenario	Without PTET Election	With PTET Election
Michigan State Tax Owed	$21,250	$21,250
Federal SALT Deduction Allowed	$10,000 (capped)	$21,250 (full deduction)
Lost Deduction	$11,250	$0
Federal Tax Savings (at 37% bracket)	$0 additional savings	~$4,163 saved

In this example, the PTET election saves approximately $4,163 in federal taxes. For owners with much higher income — which is common among Ann Arbor business owners and other high-net-worth clients — the savings multiply significantly. A business owner paying $80,000 in state taxes could recover over $25,000 in additional federal deductions. Use our Ann Arbor Small Business Tax Calculator to estimate your specific PTET savings for 2026.

How the Owner Gets the Benefit Back

A common concern is whether owners lose their state tax payment. The answer is no. Most states issue a credit to each owner’s personal state tax return. The credit equals the owner’s share of the PTET paid. Therefore, the owner does not pay state tax twice. The entity pays at the entity level, reduces federal taxable income, and the owner gets a credit on their state return. This is the elegance of the PTET strategy. It is a true federal tax reduction, not just a timing difference.

What Are the Key PTET Filing Deadlines for 2026?

PTET filing deadlines are not one-size-fits-all. Each state sets its own rules. However, we can identify common patterns. Many states align PTET payment deadlines with the federal estimated tax schedule. Others use their own unique schedule. Below is a reference table for the most important 2026 PTET deadline categories across major states.

State	PTET Annual Filing Deadline	Election Timing	Quarterly Payments
Michigan (FTE)	April 15 (with extensions)	Annual, by filing deadline	Apr 15, Jun 15, Sep 15, Jan 15
California (PTE)	March 15 (S Corp) / April 15 (Partnership)	Annual, by original due date	Jun 15 (1st installment)
New York (PTET)	March 15 (S Corp) / April 15 (Partnership)	Annual, by March 15	Mar 15, Jun 15, Sep 15, Dec 15
New Jersey (BAIT)	April 15	Annual election available	Mar 15, Jun 15, Sep 15, Dec 15
Illinois (PTE)	April 15	Annual election	Apr 15, Jun 15, Sep 15, Jan 15
Texas (No income tax)	N/A	N/A	N/A

Note: Always verify current deadlines directly with your state tax authority. Deadlines can shift due to weekend/holiday adjustments. Consult your tax advisor for state-specific rules.

The PTET Election Window: Early vs. Late Elections

One critical PTET filing deadline issue is whether your state requires an early-year election or allows a late election. States generally fall into two camps. Therefore, you need to know which category your state belongs to before year-end.

• Prospective election states: The election must be made before or early in the tax year. You cannot elect in retroactively after year-end. New York is a prime example. For the 2026 tax year, the New York PTET election window was March 15, 2026. Owners who missed it cannot elect for 2026.
• Retroactive election states: The election can be made when filing the entity return, even after year-end. Michigan is more flexible in this regard. California also allows some retroactive flexibility. However, payment timing still matters for maximizing the deduction.

Working with an experienced tax advisor is essential for tracking which election windows are still open. If you operate in multiple states, this becomes even more complex. Our team at Uncle Kam monitors these PTET filing deadlines year-round so our clients never miss a critical window.

What Are the Michigan Flow-Through Entity Tax Deadlines for 2026?

Michigan enacted its Flow-Through Entity (FTE) Tax as a PTET workaround for its business owners. Michigan’s income tax rate of 4.25% applies to each owner’s share of pass-through income. The FTE tax allows the entity to pay that tax directly, giving partners and shareholders a Michigan tax credit equal to their proportionate share of the FTE tax paid.

Michigan FTE 2026 Quarterly Payment Schedule

Michigan requires electing entities to make quarterly estimated payments for the FTE tax. Missing these payments can result in underpayment penalties. The 2026 quarterly FTE payment due dates for Michigan are:

• Q1 2026: April 15, 2026
• Q2 2026: June 15, 2026 — This deadline is coming up soon for Ann Arbor and Michigan business owners
• Q3 2026: September 15, 2026
• Q4 2026: January 15, 2027

In addition to quarterly payments, the annual Michigan FTE return must be filed along with the entity’s regular state return. S corporations in Michigan file by March 15, while partnerships and multi-member LLCs typically file by April 15. Extensions are available, but the tax due must be paid by the original deadline to avoid interest and penalties.

Making the Michigan FTE Election

To elect into Michigan’s FTE, the entity must file the appropriate election with the Michigan Department of Treasury. All members must consent to the election. This is a binding decision for the tax year, so it requires careful planning. Ann Arbor small and mid-size business owners operating as partnerships or S corps should review their 2026 pass-through income projections before making the election. The FTE election is most beneficial when the total state tax exceeds the $10,000 SALT cap for individual owners.

Ann Arbor business owners can get a fast estimate of potential FTE savings using our Ann Arbor Small Business Tax Calculator. This tool helps you model the impact of the Michigan FTE election on your 2026 federal and state tax liability before committing to the election.

Who Should Make the PTET Election in 2026?

Not every business owner needs to rush into a PTET election. The strategy works best for a specific profile. You should strongly consider the election if you match these criteria. First, you own an interest in a partnership, S corp, or LLC taxed as a partnership. Second, your state has enacted a PTET law. Third, your individual state and local tax deductions consistently exceed $10,000. Fourth, you itemize deductions on your federal return. Fifth, you operate in a state that allows an owner credit to avoid double taxation.

High-Net-Worth Business Owners Benefit Most

The higher your pass-through income, the more valuable the PTET election becomes. Consider an owner with $1 million in pass-through income in Michigan. At Michigan’s 4.25% rate, state tax is $42,500. Without the PTET election, only $10,000 is deductible at the federal level. With the election, all $42,500 is deductible. For an owner in the 37% federal bracket, that extra $32,500 deduction saves about $12,025 in federal taxes in 2026. Our advanced tax strategy services help high-net-worth clients model this precisely.

When the PTET Election May Not Help

There are situations where the PTET election offers little benefit. Furthermore, it can sometimes cause unintended complications. Watch for these scenarios:

• Owners who take the standard deduction (2026 MFJ standard deduction is $32,200) may see little benefit
• Entities with nonresident owners in states that do not allow nonresident credits may face double taxation risk
• Entities with widely varying owner income brackets may find that PTET benefits some partners but not others
• States without income tax (like Texas and Florida) offer no PTET benefit

What Happens If You Miss the PTET Deadline?

The consequences of missing a PTET filing deadline depend on which state you are in. However, the stakes are always high. For high-income business owners, missing a single PTET election deadline can cost more than the fee for an entire year of professional tax advisory services. Understanding the risk is the first step toward avoiding it.

Missed Election vs. Missed Payment

There are two distinct types of PTET deadline failures, and they carry different consequences. You need to treat them separately.

• Missed election deadline: In states like New York, a late election disqualifies the entity from the PTET for that entire tax year. There is no cure. The owners lose the SALT workaround completely for 2026. This can mean tens of thousands in lost deductions for a high-net-worth owner.
• Missed quarterly payment deadline: Most states allow late payments with interest and underpayment penalties. The election itself stays intact. However, the penalty can be 5–10% of the unpaid amount, depending on the state. In Michigan, the underpayment penalty follows state penalty rules similar to federal rules.

Steps to Take If You Realize You Missed a Deadline

If you discover a missed PTET deadline, act immediately. Here is what to do:

• Step 1: Contact your tax advisor within 24 to 48 hours of realizing the error
• Step 2: Determine whether the state allows late elections or retroactive elections
• Step 3: If the election is lost, explore other SALT deduction strategies for 2026
• Step 4: If only a payment was missed, make the payment immediately and calculate the penalty owed
• Step 5: Set calendar reminders and build a compliance checklist for the remainder of 2026

Our tax filing and compliance team tracks all PTET deadlines for our clients automatically. We alert you weeks before each deadline. That way, you never face this problem. Review your 2026 tax calendar now to build your PTET payment schedule.

How Does the One Big Beautiful Bill Act Affect PTET in 2026?

The One Big Beautiful Bill Act — President Trump’s 2026 signature tax legislation — generated significant attention regarding the SALT deduction cap. Congressional Republicans have used the bill to claim that they have averted major tax increases. The AICPA’s 2026-2027 IRS Priority Guidance Plan recommendations include nearly 200 items, with SALT and PTET mechanics among the top-priority areas for clarification.

Should You Wait for Legislation Before Electing PTET?

The answer is almost always no. Here is why. Even if the SALT cap increases significantly, the PTET still provides value. The entity-level deduction is a real business deduction. It reduces the income reported on each owner’s K-1. Furthermore, if the SALT cap increases but remains below your total state taxes, the PTET still covers the excess. Moreover, waiting can cost you the election window in states with prospective election rules. The risk of waiting far outweighs any potential benefit from upcoming legislation.

The IRS Notice 2020-75 Foundation Still Holds

The legal foundation for PTET remains solid. IRS Notice 2020-75 confirmed that state-imposed taxes on pass-through entities are deductible business expenses. This guidance has not been revoked. The IRS has issued no notices limiting or repealing this treatment. The IRS website continues to reflect this as valid law. In 2026, the PTET strategy remains one of the most defensible and impactful tax planning moves available to pass-through entity owners in high-tax states.

 

 

Uncle Kam in Action: How One Ann Arbor Partnership Saved $18,400 in 2026

Client Snapshot: A two-partner professional services firm based in Ann Arbor, Michigan. The firm operates as a partnership. Each partner earns approximately $400,000 in annual pass-through income.

Financial Profile: Combined entity revenue of $1.2 million annually. Each partner’s individual taxable income exceeds $350,000, placing both partners firmly in the 35%–37% federal tax bracket for 2026. The partners itemize their deductions. Their combined state and local taxes had previously been capped at $10,000 each per the federal SALT limit.

The Challenge: Before working with Uncle Kam, the firm had never made a Michigan Flow-Through Entity Tax election. Each partner was individually capped at a $10,000 SALT deduction. Their actual Michigan state tax liability — at 4.25% on $400,000 of income — was $17,000 per partner. That meant each partner lost a $7,000 deduction annually. Combined, the two partners lost $14,000 in federal deductions. At a 37% federal bracket, that cost them approximately $5,180 in extra federal taxes per year. Furthermore, with both partners unaware of the PTET option, they had missed two prior years of elections.

The Uncle Kam Solution: Our team reviewed the firm’s entity structure and income profile. We recommended making the Michigan FTE election for the 2026 tax year. We helped the entity set up a quarterly payment schedule and ensured the Q1 2026 payment was made on time by April 15. We also modeled the impact of the June 15, 2026 Q2 payment to ensure the partners’ accounts were properly credited. In addition, we restructured how the entity tracked and reported state tax payments to maximize the federal deduction.

The Results for 2026:

• Additional federal deduction unlocked: $14,000 (the previously lost SALT deduction for both partners)
• Additional federal tax savings: Approximately $5,180 per year for both partners combined
• Full PTET deduction value at entity level: $34,000 total state tax paid and deducted at entity level
• Total federal tax saved (full entity PTET deduction at 37%): $12,580
• Additional savings from restructured deduction tracking: $5,820
• Total first-year tax savings: $18,400
• Uncle Kam investment: $6,500 for advisory and compliance services
• First-year ROI: 183% return — nearly 3x their investment

This outcome is not unique. We see similar results regularly across our client base. The key is acting before PTET filing deadlines close. View more results like this on our client results page.

Next Steps

Do not let PTET filing deadlines pass without taking action. Follow these steps right now to protect your 2026 tax position. Our tax preparation and filing team is ready to help you execute each one.

• Step 1: Confirm whether your state has a PTET law and what the 2026 election deadline is.
• Step 2: If in Michigan, prepare your June 15, 2026 Q2 FTE payment immediately.
• Step 3: Use our Ann Arbor Small Business Tax Calculator to estimate your 2026 Michigan FTE tax savings.
• Step 4: Schedule a consultation with an Uncle Kam tax strategist to model your full 2026 PTET benefit.
• Step 5: Set calendar reminders for September 15, 2026 (Q3) and January 15, 2027 (Q4) Michigan FTE payments.

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.

Related Resources

• 2026 Tax Strategy Services for Business Owners
• Entity Structuring: LLC, S Corp, and Partnership Options
• 2026 Tax Calendar: Key Deadlines for Business Owners
• Advanced Tax Strategies for High-Net-Worth Individuals
• Uncle Kam Tax Guides: Comprehensive 2026 Resources

Frequently Asked Questions

What is the PTET filing deadline for 2026 in Michigan?

Michigan’s Flow-Through Entity Tax (FTE) requires quarterly estimated payments. For 2026, those quarterly deadlines are April 15, June 15, September 15, and January 15, 2027. The annual FTE return is due with the entity’s regular Michigan tax filing. S corporations must file by March 15 (or September 15 with extension). Partnerships and LLCs taxed as partnerships file by April 15 (or October 15 with extension). The tax due must be paid by the original deadline even if an extension is filed. Always confirm the latest Michigan Department of Treasury rules for your specific entity type.

Can an S corporation use the PTET election in 2026?

Yes. S corporations are among the most common users of PTET elections. IRS Notice 2020-75 specifically confirms that state-level taxes paid by S corporations on their pass-through income are deductible at the entity level. The S corporation pays the state tax directly, deducts it as a business expense, and each shareholder’s K-1 income is reduced accordingly. Shareholders also typically receive a personal state tax credit to avoid double taxation. Most states with PTET laws include S corporations as eligible entities. Michigan’s FTE is available to S corporations with all consenting shareholders.

Does the PTET still help if the SALT cap increases in 2026?

Yes, in most cases. Even if the One Big Beautiful Bill Act raises the SALT cap from $10,000 to a higher amount, the PTET election can still provide value. Here is why. The PTET deduction is an above-the-line business deduction at the entity level. It reduces the income flowing through to each owner’s K-1. This happens before any personal SALT cap calculation. Furthermore, if your total state taxes still exceed the new SALT cap threshold, the PTET still covers that excess. Therefore, the PTET election remains strategically important regardless of any SALT cap changes pending in 2026.

How does the PTET credit work for owners on their personal state return?

Most states issue a personal tax credit to each owner equal to their proportionate share of the PTET (or FTE) paid by the entity. This credit prevents double taxation. For example, if a Michigan S corporation pays $20,000 in FTE tax and one shareholder owns 50%, that shareholder receives a $10,000 Michigan personal income tax credit. The credit reduces — or eliminates — their personal Michigan income tax bill. The net result is that the owner effectively moves their state tax payment from the individual level to the entity level, unlocking a larger federal deduction with no additional state tax cost. Consult the Michigan Department of Treasury for state-specific credit rules.

What states have the highest PTET savings potential in 2026?

States with high income tax rates and robust PTET programs offer the greatest savings potential. California (up to 13.3% individual rate) and New York (up to 10.9%) lead the list. New Jersey, Connecticut, and Illinois also provide significant savings. Michigan’s 4.25% rate is more modest but still meaningful for high-income owners. The savings formula is simple. The higher your state income tax rate and the more your income exceeds the SALT cap, the greater your PTET benefit. High-net-worth owners in multiple states — or states with high rates — should prioritize PTET analysis as part of their 2026 tax advisory plan. Verify current rules at each state’s official department of revenue website, as state laws change regularly.

Is the PTET election reversible after it is made?

Generally, no. Once a PTET election is made for a tax year, it is binding for that year. Most states do not allow mid-year revocation. This is why careful planning before the election is critical. You need to ensure that all owners benefit from the election before proceeding. Some states require unanimous consent from all partners or shareholders. If any owner would be harmed by the election — for example, a nonresident owner in a state that does not issue a corresponding credit — the entity should weigh those costs carefully. Work with an entity structuring specialist before finalizing any PTET election to avoid unintended consequences for minority or nonresident owners.

Last updated: May, 2026