Puerto Rico Business Tax Extension 2026: 2025 Tax-Year Filing Guide
LLC & Partnership · S Corporation · C Corporation · Fiduciary
For calendar-year 2025 returns, Puerto Rico pass-through returns are generally due March 31, 2026, while corporate and fiduciary returns are generally due April 15, 2026. A six-month extension generally moves those deadlines to September 30 or October 15, 2026, respectively. The applicable return and extension form depend on the entity and tax classification. For federal filing details, see our IRS Form 7004 business tax extension guide. Last updated: September 10, 2026.
Need a pro? Connect with a U.S.-based CPA or EA to prepare and file your PR return.
Remember, payment is still due by the original deadline. In other words, extensions only extend filing time.
Puerto Rico (PR) rules depend on entity type. Next, confirm the entity’s classification, file the required extension or retain federal proof when applicable, and pay required tax by the original deadline.
Puerto Rico LLC Tax Extension: Filing Details
A calendar-year partnership or LLC taxed as a partnership generally files Form 480.20(EC), as applicable, when a Puerto Rico filing obligation applies. For the 2025 calendar-year return, the extended filing deadline is September 30, 2026.
In addition, the extension applies to filing time only. Therefore, pay required Puerto Rico tax by the original deadline to limit penalties and interest.
The extension applies to filing time only. Pay required Puerto Rico tax by the original deadline to limit penalties and interest.
Puerto Rico S Corporation Tax Extension: Filing Details
For an S corporation, a calendar-year business generally files Form 480.20 when it has a Puerto Rico filing obligation. For the 2025 calendar-year return, the extended filing deadline is October 15, 2026.
Puerto Rico C Corporation Tax Extension: Filing Details
For a C corporation, a calendar-year business generally files Form 480.20 or Form 480.20(U) and must follow Puerto Rico corporate-income-tax extension rules. For the 2025 calendar-year return, the extended filing deadline is October 15, 2026.
The extension applies to filing time only. Pay required Puerto Rico tax by the original deadline to limit penalties and interest.
The extension applies to filing time only. Pay required Puerto Rico tax by the original deadline to limit penalties and interest.
Fiduciary, Estate, and Trust Filing Details
Finally, a calendar-year estate or trust generally files Form 480.80(F) when it has a Puerto Rico fiduciary filing obligation. For the 2025 calendar-year return, the extended filing deadline is October 15, 2026.
Quick Reference: Deadlines and Forms
The table below provides a quick reference to Puerto Rico business tax extensions. For broader business-extension guidance, see our business tax extension guide.
| Entity Type | PR Return Form | Extension Method | Extended Deadline |
|---|---|---|---|
| LLC / Partnership | Form 480.20(EC) | Federal 6-month; Form AS 2644 | September 30, 2026td> |
| S Corporation | Form 480.20 | Form AS 2644 | Oct. 15, 2026 |
| C Corporation | Form 480.20 / Form 480.20(U) | Form AS 2644 | Oct. 15, 2026 |
| Fiduciary / Estate / Trust | Form 480.80(F) | Form AS 2644 | Oct. 15, 2026 |
Frequently Asked Questions
Quick answers about Puerto Rico business tax extensions – but always confirm the current rules with the Puerto Rico Division of Taxation.
Visit PR tax agencyYes. However, the applicable entity-specific requirements listed above must be satisfied. If you need an individual rather than business extension, see our Puerto Rico individual tax extension. Puerto Rico grants extensions to LLCs, partnerships, S corporations, C corporations, and fiduciaries, but the rules – including which form to file, how long the extension lasts, and the payment threshold – vary by entity type.
Generally no. In other words, pay required tax by the original deadline and confirm the current state payment rules. An extension of time to file does not extend the time to pay – failing to pay by the original deadline can result in penalties and interest, even if the return is filed within the extended window.
No. In practice, partnerships, S corporations, C corporations, and fiduciaries can use different original dates, extension periods, or forms. For 2025 calendar-year returns filed in 2026, partnerships and LLCs taxed as partnerships get a six-month extension (Sept. 15), while the others generally get a six-month extension (Oct. 15).
Review the Puerto Rico Division of Taxation guidance for the entity’s return. Additionally, the DOR publishes the most current forms (Form AS 2644, Form AS 2644, Form AS 2644, etc.) and any changes to extension periods or payment thresholds.
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