Missing the New York PTET election deadline means losing a full year of federal tax savings, with no extensions and no exceptions. For partnerships and S corporations on Long Island, that is a real dollar loss with no recovery until the following tax year. At Heritage Accountants & Advisors , we offer business consulting services across Long Island to closely held business owners who depend on this election. Here is what is at stake.
The March 15 deadline is absolute. Missing it forfeits the PTET election for the entire tax year.
The lost federal deduction can cost owners tens of thousands of dollars in a single year.
Quarterly estimated payments follow the election, and underpayment triggers additional penalties.
The 2025 SALT cap increase changes the math for some owners. Model your specific situation before deciding.
The New York Pass-Through Entity Tax (PTET) allows eligible partnerships and S corporations to pay state income tax at the entity level, creating a fully deductible federal business expense. This bypasses the $10,000 individual SALT deduction cap introduced by the 2017 Tax Cuts and Jobs Act.
The New York State Department of Taxation and Finance administers the PTET under Tax Law Article 24-A . Eligible entities generally include qualifying partnerships and New York S corporations whose owners are subject to New York personal income tax. Eligibility depends on the entity structure and ownership composition.
Missing the March 15 election deadline generally prevents an eligible entity from electing PTET for that tax year. New York currently provides no statutory late-election relief or filing extension for PTET elections.
New York requires the election through the entity's Business Online Services account by March 15 of the tax year. A proposal to extend this to September 15 was excluded from New York's final FY2026 budget.
One common mistake: many owners file a return extension and assume it covers the PTET election. It does not. The return extension and the PTET election are two separate filings. Filing Form 7004 does nothing to preserve the PTET election.
The consequences are direct:
Owners lose the federal deduction for entity-level state tax
The $10,000 SALT cap applies in full at the individual level
Each owner pays full New York personal income tax individually
The opportunity is gone until the following year
For a Long Island business owner with $200,000 in state and city tax liability, the lost federal deduction at the 37% bracket represents approximately $74,000 in additional federal tax for that year.
Each owner receives a credit on their New York personal income tax return equal to their share of the PTET paid by the entity. Any excess credit is refundable.
Once an election is made, quarterly estimated payments follow a fixed schedule:
Each payment must equal at least 25% of the required annual PTET. Underpayment carries interest-based penalties set by the New York Department of Taxation and Finance.
Not always. The right answer depends on each owner's income, residency, federal bracket, and how entity income is allocated.
The One Big Beautiful Bill Act , signed into law July 4, 2025, raised the individual SALT deduction cap from $10,000 to $40,000 for taxpayers with modified adjusted gross income under $500,000. The increase is temporary and reverts to $10,000 in 2030. That changes the calculation for some owners. This is where financial service consulting firms add value: modeling both scenarios with your actual numbers before the deadline arrives.
Our team provides business consulting services on Long Island to help owners make this decision with accurate projections. With Big 4 backgrounds and AICPA membership, Heritage Accountants & Advisors applies the same rigor to small business consulting services that larger firms reserve for corporate clients.
Financial consulting for businesses in NY means year-specific planning, not generic advice repeated every April. Contact Heritage Accountants & Advisors at (631) 543-7700 or info@heritage.cpa to review your PTET election.
Disclaimer: This article is for informational purposes only and does not constitute professional tax, legal, or financial advice. Tax laws are subject to change and individual circumstances vary. Please consult with your tax advisor regarding your specific situation.
