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Montana SR-22 Insurance: Who Needs a Filing and for How Long

Not by that name — Montana requires a certificate of insurance filed by the insurer, which does the SR-22's job. How long it stays on file: 3 years.

Used in this state
Yes

Yes, but Montana uses it far more narrowly than most states. Section 61-6-131 attaches the filing duty to revocation only: whenever the department revokes a license or privilege to drive, that license stays revoked until the person files a certificate of insurance under § 61-6-133. A suspension does not trigger it. That distinction matters because § 61-5-205 makes most drunk driving convictions a suspension, not a revocation.

Form
Certificate of insurance filed by the insurer (no SR-22)

Montana never says "SR-22". Section 61-6-133 calls it "the written certificate of any insurance carrier" certifying that a policy is in effect, and § 61-6-132 lists it alongside a bond, a deposit of money or securities, and a certificate of self-insurance as the four ways to give proof. Neither the Motor Vehicle Division's pages nor the 99-page driver manual uses the SR-22 name anywhere; the Division simply tells you to "provide proof of liability insurance to the Motor Vehicle Division Records and Driver Control Unit in Helena". An insurer licensed in other states will usually file it on their own SR-22 form.

How long it must stay on file
3 years

Three years from the date proof was first required. Section 61-6-142 lets the department waive the filing only after three years have passed with no conviction or bail forfeiture that would require or permit another suspension or revocation — so a fresh conviction inside the window restarts the clock in practice. Two traps. The department may not release the proof at all while a damages action on the covered liability is pending, while a judgment is unsatisfied, or if you were an owner or operator in any crash causing injury or property damage within the preceding year. And surrendering your license ends the filing but not the period: applying again inside the original three years means meeting the § 61-6-301 and § 61-6-302 requirements all over again.

What triggers it
Negligent homicide resulting from the operation of a motor vehicle (§ 61-5-205(1)(a)) · Any felony in the commission of which a motor vehicle is used — which is where a fourth DUI lands (§ 61-5-205(1)(b)) · Failure to stop and render aid after a crash resulting in death or personal injury (§ 61-5-205(1)(c)) · Perjury or a false affidavit or statement under oath about the ownership or operation of a motor vehicle (§ 61-5-205(1)(d)) · Fleeing from or eluding a peace officer (§ 61-5-205(1)(e)) · Negligent vehicular assault involving a motor vehicle (§ 61-5-205(1)(f)) · Being declared a habitual traffic offender — 30 or more conviction points in three years, which revokes the license for three years (§§ 61-11-203, 61-11-211)

This list is the revocations, because under § 61-6-131 revocation is what triggers the filing. The revocations in § 61-5-205(1)(a), (b) and (d) through (f) run one year; failure to stop and render aid runs two years if the conviction was a felony under § 61-7-103. What is missing from the list is as telling as what is on it. A first, second or third conviction for driving under the influence is a suspension under § 61-5-205(2)(a), not a revocation, so it does not by itself bring a three-year certificate filing. Neither does a conviction for driving uninsured: § 61-6-304(3) suspends the license on a fourth conviction and reinstates it on "proof of compliance with 61-6-301", which means current coverage, not a certificate on file. Unpaid crash judgments work the same way — §§ 61-6-122 and 61-6-123 keep the license suspended until the judgment is satisfied and the person gives proof of compliance with § 61-6-301, a wording the 1999 legislature substituted for the old proof-of-financial-responsibility filing.

If coverage lapses
The state is told before the coverage ends, and the revocation resumes

Section 61-6-135 bars an insurer that has certified a policy from canceling or terminating it until at least ten days after filing notice of cancellation with the department — the one exception being a replacement policy that is itself certified, which terminates the old certificate on its own effective date. So Montana learns of the lapse before the gap opens. Once the certificate is gone the license may not be restored under § 61-6-131 until a new one is filed, and § 61-6-142 counts the three years from when proof was first required rather than from the refiling. Section 61-6-132(2) adds a second bite: a vehicle may not be registered or stay registered in the name of anyone required to file proof unless the proof is furnished for that vehicle.

Reinstatement fee
$100

Section 61-5-218(1) sets a flat $100 to reinstate any non-commercial license after a suspension or revocation, deposited in the general fund. Two carve-outs: a suspension or revocation under § 61-5-207 (reexamination or medical evaluation) costs nothing, and one under § 61-8-1016 (the alcohol-related administrative action) instead pays the fee in § 61-2-107. That fee is $200, half of it funding county drinking and driving prevention programs, and § 61-2-107 applies it by its own terms to any license "suspended or revoked under 61-5-205 or 61-8-1016" — which covers both the revocations that trigger a certificate filing and the § 61-5-205(2) suspensions that do not — a drunk-driving suspension pays the $200 without ever needing a filing. Read together the two sections put $300 on a § 61-5-205 revocation, and the Motor Vehicle Division publishes no fee schedule resolving the overlap. The department must waive the $100 for a person a court has found indigent under § 47-1-111 who has satisfied a § 61-5-214(2) order. None of this covers the separate replacement plate and registration receipt fees in §§ 61-3-333 and 61-3-341.

Years the filing stays on file — where Montana sits
Montana requires 3 years — the highest of the 37 jurisdictions on this site. The range runs from 1 year to 3 years.1 year3 years

Montana requires 3 years — the highest of the 37 jurisdictions on this site. The range runs from 1 year to 3 years.

How Montana compares with every other state

Every statute cited for Montana

Why the rule looks like this

More on Montana

Checked against the primary sources above on September 29, 2026. If a figure here is wrong, tell us and we will fix it — what we have corrected so far is public.