Medical Debt Statute of Limitations in Montana
Last verified 2026-07 · Source: Mont. Code Ann. § 27-2-202(2) ✓ verified · 3 sources
The deadline
5 years
from Date of last service rendered or date of first missed payment; accrues when cause of action arises (typically date of breach), under Mont. Code Ann. § 27-2-202(2).
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If you're researching medical debt collection in Montana, the single most important number is 5 years. That's how long Mont. Code Ann. § 27-2-202(2) gives you to sue over unpaid medical bills, counted from Date of last service rendered or date of first missed payment; accrues when cause of action arises (typically date of breach). File even one day late and the court will almost certainly dismiss the case, no matter how strong it is.
Montana Deadlines for Related Claims
| Claim type | Deadline | Statute |
|---|---|---|
| Medical Debt | 5 years | Mont. Code Ann. § 27-2-202(2) |
| Car Accident | 3 yrs | Mont. Code Ann. § 27-2-204(1) |
| Credit Card Debt | 5 yrs | Mont. Code Ann. § 27-2-202(2) |
| Medical Malpractice | 2 yrs | Mont. Code Ann. § 27-2-205 |
| Wrongful Death | 3 yrs | Mont. Code Ann. § 27-2-204(2); § 27-1-513 |
| Personal Injury | 3 yrs | Mont. Code Ann. § 27-2-204(1) |
| Dog Bite | 3 yrs | Mont. Code Ann. § 27-2-204 |
| Slip and Fall | 3 yrs | Mont. Code Ann. § 27-2-204(1) |
| Defamation | 2 yrs | Mont. Code Ann. § 27-2-204(3) |
| Breach of Contract | 8 yrs | Mont. Code Ann. § 27-2-202(1) |
When the Clock Starts
In Montana, the limitations period for medical debt collection generally begins on Date of last service rendered or date of first missed payment; accrues when cause of action arises (typically date of breach). Montana does not apply a general discovery rule to this claim type — the date of the event controls, which makes early action critical.
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Exceptions That Can Extend the Deadline
- Minors: the clock is generally paused while the injured person is under 18.
- Fraudulent concealment: if the defendant actively hid the wrongdoing, the deadline may be extended until it was or should have been uncovered.
- Defendant leaves the state: absence can pause the clock in many circumstances.
- Government-claim trap: Montana Tort Claims Act (MCA § 2-9-301 et seq.) applies to tort claims against government-run facilities; contract claims for medical debt against public hospitals are generally governed by § 27-2-202 without additional pre-suit notice requirements.
Medical bills treated as open accounts or unwritten contracts = 5 years under MCA § 27-2-202(2). If a patient signed a formal written financial agreement, the written-instrument provision of § 27-2-202(1) (6 years) may apply. Most Montana medical debt is collected under the 5-year open-account provision. Minor tolling is governed by MCA § 27-2-401.
Source: Mont. Code Ann. § 27-2-202(2), official Montana statute · verified 2026-07
What to Do Before the Deadline Runs
- Pin down your accrual date — the day the clock started — and calendar the deadline conservatively.
- Preserve evidence now: photos, records, witness contacts, bills. Evidence decays faster than deadlines.
- Send preservation/notice letters where required (especially for Montana government defendants).
- If the deadline is inside 6 months, treat it as urgent — filing suit is the only reliable way to stop the clock.
How Montana Compares to Nearby States
| State | Deadline | Statute |
|---|---|---|
| Montana | 5 years | Mont. Code Ann. § 27-2-202(2) |
| North Dakota | 6 yrs | N.D.C.C. § 28-01-16(1) |
| South Dakota | 6 yrs | S.D. Codified Laws § 15-2-13 |
| Wyoming | 10 yrs | Wyo. Stat. § 1-3-105(a)(i) |
| Idaho | 5 yrs | Idaho Code § 5-216 |
Frequently Asked Questions
How long do I have to sue over unpaid medical bills in Montana?
You have 5 years from Date of last service rendered or date of first missed payment; accrues when cause of action arises (typically date of breach), under Mont. Code Ann. § 27-2-202(2).
Can I still sue after 5 years in Montana?
Usually no — courts dismiss claims filed after the statute of limitations expires. Narrow exceptions (tolling for minors, fraudulent concealment) can extend the deadline; whether one applies depends on your facts.
What if the victim was a minor?
Montana generally pauses ("tolls") the deadline while the injured person is under 18, giving them time to file after reaching adulthood. Special limits can still apply, so check the statute.
Is the deadline different for claims against the government?
Montana Tort Claims Act (MCA § 2-9-301 et seq.) applies to tort claims against government-run facilities; contract claims for medical debt against public hospitals are generally governed by § 27-2-202 without additional pre-suit notice requirements.
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Sources
- Official Montana Code Annotated — MCA § 27-2-202, Actions Based on Contract or Other Obligation
- Corroborating Justia: Montana Code Annotated § 27-2-202 (2025) — Actions Based on Contract or Obligation
- Corroborating FindLaw: Montana Code Ann. § 27-2-202 — Contract and Obligation Limitations Periods
- Verified 2026-07 under our 4-step process — every line checked against the sources above. How we verify
This page is legal information, not legal advice. Deadlines have exceptions that depend on your facts — confirm with a licensed Montana attorney.