The rule: 45 calendar days from the date DEED sent your determination
If DEED has sent you a Determination of Ineligibility, the single most important fact on that page is the date. Under Minn. Stat. § 268.101, subd. 2(f), a determination of eligibility or ineligibility "is final unless an appeal is filed by the applicant or employer within 45 calendar days after sending." Two words in that sentence do most of the work. Calendar days means every day counts — weekends and holidays included — and there is no rounding to the next business day. Sending means the clock starts on the day DEED mailed or electronically transmitted the determination (the date printed on the notice), not the day you opened it. The same 45-day window applies if DEED issues an amended determination (§ 268.101, subd. 4), and it applies to your employer's appeal of a determination in your favor, too. If you have an older notice or an older guide in front of you that says 20 days, that was the law until the Legislature expanded the window for determinations issued on or after May 5, 2024. Do not rely on either number from memory — the exact deadline is printed on your determination, and you should treat that date as the last possible day, not a target.
What "filed" means — and why online filing is safest
What "filed" means is spelled out in Minn. Stat. § 268.035, subd. 17, and the answer depends on how you send it. An appeal filed online through your account at uimn.org is filed on the day DEED receives it. An appeal sent by mail is filed on the date of the U.S. Postal Service cancellation mark — the postmark, not the day you dropped it in the box and not the day it arrives. DEED also accepts appeals by fax (651-205-4007) or mail (P.O. Box 4629, St. Paul, MN 55101-4629), and a faxed or mailed appeal needs to identify who is appealing, the Issue ID from the determination, your Social Security number, and your reason for appealing. If you are anywhere near the deadline, file online: it is the only method that gives you same-day confirmation and no argument about dates. One more practical point comes from § 268.032, which requires DEED to send determinations to your "last known address." If you move and do not update your account, the determination is still validly sent to the old address and the 45 days still run.
Oslund v. The Paint Genie: the Minnesota Supreme Court says there are no exceptions
That last point is exactly what the Minnesota Supreme Court confirmed on August 5, 2026, in Oslund v. The Paint Genie, Inc., No. A24-1583 (Minn. Aug. 5, 2026). Jordan Oslund was fired in March 2024, applied for benefits, and was found ineligible for misconduct. DEED mailed the determination to his last known address on April 29, 2024. He had been evicted, was temporarily homeless, and did not receive the notice until after the deadline had passed; he filed his appeal about a month late and explained why on the appeal form. The unemployment law judge dismissed the appeal as untimely, and the Supreme Court affirmed. Reading § 268.105, subd. 1a(c) — which says the judge "must issue a decision dismissing the appeal as untimely" if it was not filed within the statutory window — the Court held that the judge has no discretion to consider an applicant's explanation for a late appeal, however sympathetic. There is no good-cause exception, no tolling, and no extension. The Court pointed out that the Legislature knows how to write a good-cause exception (it wrote one into the neighboring paragraph of the same subdivision, for people who miss their hearing) and chose not to write one here, and it reaffirmed its 1976 holding in Semanko v. Department of Employment Services that the deadline is "absolute and unambiguous." The justices acknowledged that lost mail, postal delays, and misdelivery can make this harsh, but said the fix has to come from the Legislature. The one thing a judge can still take evidence on is a genuine factual dispute about when DEED sent the determination or when you filed — which is why keeping your address current and filing in a way that leaves a record matters so much.
If your deadline is close, file today
So if your deadline is close, file today, even if your appeal is a single sentence. You do not need your documents, your witnesses, or a fully formed argument to file; you need to get a timely appeal on record. Your appeal hearing is a fresh, de novo proceeding under § 268.105, subd. 1, so everything you want the judge to consider — the reasons you were not fired for misconduct under Minnesota law, or the exception that lets you collect unemployment after quitting — gets presented at the hearing, not in the appeal form. Filing first and preparing second is the correct order. While the appeal is pending, keep requesting benefits every week; if you win, DEED can only pay weeks you actually requested. And if you have already missed the deadline, be realistic: after Oslund, an explanation will not get the appeal reinstated at the judge level, and the only arguments left are factual ones about the sending or filing dates. (The Court expressly left open constitutional challenges to the deadline's finality, but that is appellate litigation, not something to count on.) Note that the same 45-day clock runs again at each later stage — 45 days from the judge's decision to request reconsideration, and 45 days from the reconsideration decision to petition the Minnesota Court of Appeals — so the discipline of calendaring the date and filing early never stops mattering.
After you file
If you have filed on time and now need to prepare, our step-by-step guide to how to appeal a Minnesota unemployment denial covers what happens next, from the exhibit packet to the phone hearing. If you would rather not do that alone, The Unemployment Advocate offers an attorney-prepared Self-Representation Packet at a flat fee — but whatever you decide about help, decide about the appeal itself first. The deadline does not wait for either.
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