The 2025 Form 990-T Direct Pay Deadline Is November 16
An extended 2025 Form 990-T is due Monday, November 16, 2026, and a direct pay election under Section 6417 only counts if it’s on that return. If your organization placed a solar or geothermal system in service during its 2025 tax year, extended instead of filing, and doesn’t yet have a pre-filing registration number, registration is the piece to move on now. The IRS asks organizations to register at least 120 days before the return is due, including extensions, and for a November 16 date that window closed on July 19.
The credit doesn’t shrink if you’re late. It’s gone for that year.
Why the extended Form 990-T deadline is November 16, not November 15
Form 990-T has two due dates and the one quoted most often is the wrong one for a typical nonprofit.
An employees’ trust under section 401(a), an IRA, a Roth IRA, a Coverdell ESA, or an Archer MSA files by the 15th day of the 4th month after year end. That’s where April 15 comes from.
Everyone else, which means essentially every 501(c)(3), school district, municipality, hospital and housing authority reading this, files by the 15th day of the 5th month. For a calendar-year organization that’s May 15. A timely Form 8868 adds six months, which lands on November 15, 2026. That’s a Sunday, and the instructions push a weekend due date to the next business day, so the real date is Monday, November 16.
If your tax year isn't the calendar year, run your own math instead of borrowing this date. Take your year end, count five months, land on the 15th, then add six months. A June 30 year end produces a November 15 original date and a May 15 extended one, each pushed to the next business day if it lands on a weekend or holiday, a completely different calendar from this one.
How long IRS pre-filing registration takes, and when to contact the IRS
Every property has to be registered through IRS Energy Credits Online before the return is filed, and each one gets a number that goes on Form 3800 and on the source credit form. Leave the number off and the election is treated as ineffective, however complete the rest of the return is.
Publication 5884 is blunt about how the queue works: the IRS generally reviews and processes submissions in the order it receives them, and a registrant cannot request expedited handling. It does say the review team may prioritize by entity type as a filing deadline approaches, with a warning attached: registrants in that position should anticipate that the return carrying the election may undergo heightened scrutiny.
The IRS publishes no estimate of how long review takes. What it publishes instead is when to start worrying. From the registration page, you should contact the IRS if your extended due date is 60 days out or less and you still have no number, or if your package has been sitting more than 90 days with no status change in the last 30.
Read that first threshold against the calendar. For a calendar-year 2025 filer, 60 days out was September 17, 2026. If you registered and you’re still waiting, you are already inside the window where the IRS wants to hear from you, and you have been since that date.
What we see in practice. The fastest turnaround this practice has seen on a clean, complete package is about 21 days. Most take longer. A package that comes back with questions starts the wait over, and you can’t edit a package while it’s under review, only after the IRS returns it. Registering the same property twice to get a second place in line does not work, and the IRS asks you not to do it.
Registration closes before the deadline does. Publication 5884 says the IRS will process registration requests only up to the point where the registrant can still timely file, and that it will decline to review registrations or issue numbers if timely filing is impossible. Past that point there is no number to put on the return.
What to do if you extended, filed without the election, or did neither
You extended by May 15 and haven’t filed. You have until November 16. Start registration today if it isn’t started, and gather eligible basis, the placed-in-service documentation, and the records behind any bonus you plan to claim while the registration sits in the queue. That work runs in parallel.
You filed on time and left the election off. There’s a narrow path. Section 301.9100-2(b) gives an automatic six-month window from the original due date, but only if you timely filed and did not take an extension. Corrective action means filing an amended Form 990-T with the completed Form 3800 and source credit form attached, within six months of May 15, 2026, with “FILED PURSUANT TO ยง 301.9100-2” written at the top. Talk to someone this week if this is you, because the window is short and the conditions are strict.
You neither filed nor extended. Every published path is closed. The election has to be on an original return filed by the due date including extensions. It can’t be made for the first time on an amended return, withdrawn on one, or made through an administrative adjustment request. There’s no relief under section 301.9100-1 or 301.9100-3. Rev. Proc. 2024-39, which gave some entities an automatic six-month reprieve, covered only tax years ending on any day from December 31, 2023 through November 30, 2024, so it doesn’t reach a 2025 year. The one published exception is disaster relief, so check whether your county was covered by a declaration that postponed filing dates.
What a Form 990-T elective payment return has to include
An organization filing solely to make the election still files a real return: Form 990-T carrying the election, Form 3468 computing the investment credit for each property, and Form 3800 carrying the amount onto the return. The registration number goes on both Form 3800, Part III, column (b) and Form 3468, Part I, line 1. The elected amount lands on Form 990-T, Part III, line 6g, pulled from Form 3800, Part III, line 6, column (j). Our walkthrough of the filing sequence covers how the pieces fit together.
Two mechanics that catch people:
- A section 511 organization has to file electronically. An applicable entity that isn’t a section 511 organization or trust may paper file to Ogden, but for most nonprofits e-filing is mandatory, which adds a software dependency on top of the registration dependency. Finding out in the second week of November that your provider can’t transmit a 990-T with Form 3800 is a bad week.
- Registration numbers are annual. A number issued for a 2024 property does not carry to the 2025 return. If you claimed last year, you register again.
Filing early does not get you paid earlier
Under the statute you aren’t entitled to the payment until the return’s due date, even if you file before it. The IRS says entities that file by the due date and elect properly can generally anticipate payment within 45 days of that due date.
So filing on October 20 instead of November 10 doesn’t move the money. What early filing buys you is margin: time to fix a rejected e-file, a wrong registration number, or a missing attachment while the deadline is still ahead of you.
What to do this week
Day 1Confirm your date and your status
Calendar-year filers land on November 16, 2026. Confirm a Form 8868 was actually filed by May 15. A 501(c)(3) with a section 6011 or 6033(a) filing obligation never had the automatic paperless extension, and for tax years beginning in 2024 and later the IRS tells government and tribal entities to use Form 8868 as well. For a 2025 year, the paperless extension is not the answer for anyone filing Form 990-T.
Day 1Start or check registration
If it isn't submitted, submit it. If it is and you have no number with 60 days or less to go, use Secure Messaging in your Clean Energy account to ask about it. That's the IRS's own instruction, not an escalation.
Week 1Pull the file
Eligible basis, placed-in-service documentation, sourcing and labor records for any bonus, and the grant or bond documents that can reduce the credit.
Week 2Confirm you can actually transmit
Whoever prepares the return should verify their software handles a 990-T with Form 3800 and an elective payment election before November.
Before the dateFile complete
Registration numbers on Form 3800 and the source form, everything attached, filed on an original return. There is no second version of this that works.
Sitting on an unfiled 2025 return? GreenFile Advisory handles Section 6417 filings for tax-exempt owners, including pre-filing registration and the return itself. Tell us your placed in service date and whether you extended, and we'll work through where your filing stands and what the calendar still allows.
Form line references are to the 2025 revisions of Forms 990-T, 3468 and 3800. Check line numbers against the revision you file.
Have a project and a deadline?
GreenFile Advisory handles the filing side of Section 6417 direct pay: eligibility confirmation, IRS pre-filing registration, and the Form 990-T with the elective pay election. Filing and compliance only, so we are not competing with your installer or your financing.
This article is general information, not tax advice, and it reflects IRS guidance as of September 21, 2026. Deadlines and eligibility depend on your organization's tax year and entity type. Please confirm your own facts with a qualified tax professional before relying on anything here.