In most states, PTE payment due dates for calendar-year entities fall on April 15, June 15, September 15, and either December 15 or January 15 for the four quarterly estimates, with the annual return and any remaining balance due March 15. More than 35 states now offer a pass-through entity tax election, and while the schedule is broadly consistent, the fourth-quarter date, the election deadline, and the penalty rules differ enough that you need to confirm the specifics with your state’s revenue department before the first installment.
The Quarterly Estimated Payment Schedule
Calendar-year entities in most states follow a four-installment schedule that mirrors federal estimated tax deadlines:
- First quarter: April 15
- Second quarter: June 15
- Third quarter: September 15
- Fourth quarter: December 15 or January 15 of the following year
The fourth-quarter date is where states diverge most. Some set it in December to collect revenue before year-end; others push it to January 15 to align with federal estimated tax conventions. New York uses a different schedule entirely, starting its first estimated payment on March 15 rather than April 15.
When a due date falls on a weekend or legal holiday, the deadline shifts to the next business day. Timing within the day matters too. Payments must be initiated through the state’s electronic system or received by the close of business on the due date. Starting a bank transfer at 11 p.m. on the due date doesn’t count in states that require the funds to clear by the due date rather than merely be initiated.
Fiscal-Year Entities
If your entity operates on a fiscal year rather than a calendar year, installments are typically due on the 15th day of the 4th, 6th, and 9th months of the fiscal year, plus the 1st month of the following year. The annual return follows the same offset from your fiscal year-end.
The Election Deadline Comes First
Before any PTE payment can be made, the entity must file a formal election with its state revenue department. Miss this and the quarterly schedule doesn’t matter, because the entity has no PTE tax to pay.
The election deadline varies by state, but most require it on or before the date of the first estimated payment for the tax year. In practice, that often means sometime between March 15 and April 15 for calendar-year entities, though a handful of states set the deadline alongside the prior year’s return filing. Once made, the election is almost always irrevocable for that tax year.
Missing the election window means the entity cannot participate in the PTE tax regime until the following year, and the owners lose the federal deduction benefit for the entire missed year. There is no general federal provision for late PTE election relief, and most states are equally rigid. This is where most costly mistakes happen: an accountant prepares the estimated payments but forgets the separate election form, and the payments get credited as something else.
One eligibility note before you plan around any of these dates. PTE elections are designed for multi-member entities taxed as partnerships or S corporations, including multi-member LLCs that elect partnership taxation. Single-member LLCs taxed as disregarded entities and sole proprietors are not eligible in any state that offers the election.
The Annual Return and Final Payment
The annual PTE return is generally due on March 15 for calendar-year entities, the same deadline as federal partnership and S corporation returns. Any remaining tax balance not covered by the four quarterly installments must also be paid by March 15.
This is the deadline that catches people. The entity can request a six-month extension to file its return, which pushes the paperwork deadline to September 15, but the extension does not extend the payment deadline. Every dollar still owed after March 15 accrues penalties and interest regardless of whether a valid extension is on file.
Penalties for Missing a Deadline
Missing a quarterly installment triggers underpayment interest that accrues from the original due date, not from when the state sends a notice. Rates and penalty structures vary by state, and they add up quickly when compounded over three or four missed quarters.
For late payment of the final balance, the federal comparison gives a sense of scale: the IRS charges a late-payment penalty of 0.5% per month on unpaid balances, up to a maximum of 25%, plus interest that compounds daily at the federal short-term rate plus three percentage points.1Internal Revenue Service. Topic No. 653, IRS Notices and Bills, Penalties and Interest Charges State PTE penalties vary widely. Some states charge a flat percentage per month on the unpaid balance; others use an annual interest rate set by the state revenue commissioner. None of them waive penalties just because you filed an extension.
Safe Harbors
Most states offer safe harbors modeled on the federal estimated tax rules. At the federal level, taxpayers generally avoid underpayment penalties by paying at least 90% of the current year’s tax or 100% of the prior year’s tax, whichever is smaller.2Internal Revenue Service. Estimated Taxes State PTE safe harbors tend to follow the same pattern, though the exact percentages differ. Some states require 110% of the prior year’s liability for higher-income entities.
A new entity making its first PTE election has no prior-year PTE tax to reference, so the 90%-of-current-year test is usually the only available safe harbor in year one. Size your quarterly installments accordingly.
The California June 15 Trap
California imposes a 12.5% reduction to the owner-level tax credit if the entity misses or underpays the June 15 installment. That penalty applies for tax years 2026 through 2030 and hits the owners rather than the entity, making it easy to overlook until individual returns are filed. If you operate in California, treat the June 15 date as harder than the others.
How to Pay and Prove You Paid
Nearly every state that offers a PTE election requires or strongly encourages electronic payment. The two main options are ACH debit, where you authorize the state to pull funds from the entity’s bank account through the state’s online portal, and ACH credit, where the entity’s bank pushes the payment to the state. Some states mandate electronic payment above certain dollar thresholds.
For entities that aren’t required to pay electronically, mailing a check with the appropriate payment voucher is usually an option. The check should reference the entity’s federal employer identification number and the specific tax year.
After any electronic payment processes, the state system generates a confirmation number. Keep that confirmation alongside the entity’s tax records. It is the only proof of timely payment if a dispute arises later.
What to Have Ready Before the First Payment
Getting the paperwork right before the first payment deadline prevents rejected filings and misapplied payments. At minimum, the entity needs its federal employer identification number, its state-issued tax account number, and the distributive share of income allocated to each participating owner. The entity name and address on all PTE forms must match the records on file with both the state revenue department and the secretary of state. A mismatch as minor as an outdated address can delay processing or misdirect a payment.
Confirm the state PTE rate early in the year. Rates vary significantly, with some states applying a flat rate and others using graduated brackets that can reach above 10% for entities with large taxable income. Getting the rate right up front means the quarterly installments are sized correctly and there is no large balance surprise at March 15.