Extension season for 2025 tax returns runs through October 15, 2026, a Thursday. It's accounting's second busy season, five compressed weeks of client calls. What's different in 2026 is who's answering: firms are working this deadline with fewer people than they've had in years, because the graduating classes behind today's staff have been shrinking since 2021.
October 15 is a real deadline — here's exactly what it covers
October 15, 2026 is the final deadline for anyone who filed Form 4868 by April 15 to request the automatic six-month extension — sole proprietors, freelancers, retirees, and any individual filer. The extension only moves the paperwork deadline, not the payment one: any balance owed for 2025 was due back in April, and interest plus a late-payment penalty have been accruing on unpaid amounts ever since (IRS, 2026). For anyone still finishing a return, October 15 is the last stop, with no second extension for individual filers outside a handful of disaster-relief exceptions.
The people answering that deadline have been getting scarcer for three straight years
The accounting pipeline has been shrinking since well before this year's extension season landed on the calendar. Bachelor's and master's degrees in accounting fell to 55,152 in the 2023-24 academic year, the third straight annual decline, following drops of 9.6% and 7.4% in the two years before it (Journal of Accountancy, 2025). New CPA exam candidates fell from 42,626 in 2023 to 28,082 in 2024 (Journal of Accountancy, 2025). The Bureau of Labor Statistics still projects roughly 115,300 accountant and auditor job openings a year through 2035, in a field that keeps needing more people than it's producing (BLS, 2026).
There's a real bright spot in the same data. Accounting program enrollment jumped 12.4% in spring 2025, to 266,506 students, the highest total since 2020 (Journal of Accountancy, 2025). But enrollment today doesn't become a licensed preparer answering phones this October — that pipeline runs several years long. The firms working through this extension season are staffed by the smaller graduating classes of 2022 through 2024, not by the recovery that's still sitting in class.
| Metric | Recent figure | Change | Year reported |
|---|---|---|---|
| Accounting bachelor's + master's degrees (2023-24) | 55,152 | -6.6% YoY, 3rd straight decline | 2025 |
| New CPA exam candidates | 28,082 (2024) vs. 42,626 (2023) | -34% | 2025 |
| Accounting program enrollment, spring 2025 | 266,506 students | +12.4% YoY, highest since 2020 | 2025 |
| Projected accountant/auditor job openings | ~115,300/year through 2035 | 5% employment growth vs. 3% avg. | 2026 |
Why a missed call this month isn't the same as a missed call any other month
Every other seasonal-crunch post on this site is about a lost lead — a contractor's phone rings while they're on a roof, and the bid goes to whoever picks up next. Extension season runs differently. A meaningful share of the calls hitting a CPA firm's line this month are existing clients checking on their own October 15 deadline: confirming a return was actually filed, adding a 1099 that just showed up, asking whether the extension covers what they think it covers. An unanswered call from that client isn't just a bad experience — if it means their own filing slips past the deadline, the penalty lands on them, and the firm inherited that risk the moment the call went to voicemail.
The new-client calls carry a different urgency. Someone calling a CPA firm for the first time in October isn't browsing three quotes over a weekend — they have a federal deadline bearing down on them personally and a short list of firms still willing to take on a return this late. A call that isn't picked up doesn't sit in a queue; it goes to the next name on that list.
What that looks like in Montana right now
Montana's accounting labor market is small enough that the national numbers show up quickly at the local level. LC Staffing, the Kalispell-based firm that places finance and accounting talent across Kalispell, Missoula, and Bozeman, puts it plainly on its own site: finding accounting and finance professionals with the right skills and the right cultural fit "is not easy" (LC Staffing, 2026). The Montana Society of CPAs' own job board carried a Missoula controller opening ($100,000-$125,000) and a Helena tax-professional role ($95,000+) at the time of this research — two listings, not a mountain of data, but a real, current signal that Montana firms are actively short-staffed heading into extension season (Montana Society of CPAs, 2026).
What actually helps for the next five weeks
- Route every call through something that always picks up, so the two or three people still doing returns aren't also running the front desk.
- Let routine status checks — has my return been filed, did the extension go through — get answered immediately, without pulling a preparer out of a return to say yes.
- Flag new-client, first-time calls for a same-day callback instead of a voicemail — that's the caller with the shortest patience and the most other options.
- Log every call so nothing about the firm's busiest month depends on someone's memory of who called and why.