Wisconsin: Statute of Limitations on Debt Collection

Requirements one by one

Governing law

Wisconsin's contract-debt deadline lives in ch. 893 of the Wisconsin
Statutes, "Limitations of Commencement of Actions and Proceedings," under
the subchapter "Actions Relating to Contracts and Court Judgments." Unlike
states that split written from oral contract debt into separate sections,
Wisconsin uses one section, § 893.43(1), for both. The surrounding sections
in the same subchapter fill in the rest of the picture: § 893.45 governs
acknowledgments and new promises, § 893.48 preserves the separate effect of
an actual payment, § 893.07 is Wisconsin's borrowing statute for debt that
arose elsewhere, and § 893.05 states what expiration actually does to the
claim.

How long you have on a written debt

Six years from accrual. Section 893.43(1) covers "any contract, obligation,
or liability, express or implied, including an action to recover fees for
professional services", a promissory note, a signed credit card
agreement, or any other written contract for the payment of money falls
squarely inside this single period. (A narrow carve-out in § 893.43(2), not
relevant to ordinary debt collection, gives motor-vehicle insurance policy
claims only 3 years.)

How long you have on an oral or unwritten debt

Also six years. Wisconsin's contract-limitations statute makes no
distinction at all between a written and an oral or unwritten debt, § 893.43(1) applies the identical 6-year period to both, unlike the roughly
2:1 written-vs-oral split common in many other states. An informal loan, a
verbal agreement, or an open account with no signed writing behind it gets
exactly the same six years as a signed note.

When the clock starts

The date of breach or default. Wisconsin's own courts have squarely rejected
importing a discovery rule into ordinary contract claims: in CLL Associates
v. Arrowhead Pacific Corp., the Wisconsin Supreme Court held that "a
contract cause of action accrues at the time of the breach. The discovery
rule is inapplicable." That means the clock starts running on the missed
payment or other breach itself, regardless of when the creditor actually
notices or investigates it.

Can a payment or promise restart the clock?

Yes, in two different ways that work independently of each other. A general
"acknowledgment or promise" of a new or continuing contract only counts if
it's a signed writing: § 893.45 says no such acknowledgment or promise is
"sufficient evidence of a new or continuing contract ... unless the same be
contained in some writing signed by the party to be charged thereby."
Separately, § 893.48 preserves the effect of an actual payment of principal
or interest without requiring any writing at all, it says nothing in the
surrounding sections "shall alter, take away or lessen the effect of a
payment of any principal or interest made by any person." Wisconsin case law
gives that preserved payment effect real teeth: in St. Mary's Hospital
Medical Center v. Tarkenton, the Wisconsin Court of Appeals held that
"partial payment of an obligation made prior to the running of the statute
of limitations tolls the statute and sets it running from the date of
payment." This session's research found no statute or case addressing
whether a payment made after the 6-year period has already fully run can
revive an already-expired claim, the case law located concerns a payment
made before the deadline passes.

Is there a special rule for consumer debt?

No. Wisconsin does not carve out a shorter (or longer) limitations period
specifically for consumer-credit-transaction debt; the same 6-year period
under § 893.43(1) applies whether the debt is a personal credit card balance
or a commercial account. (The separate Wisconsin Consumer Act, chs. 421-427,
does give a consumer up to 6 years to sue a creditor for violating its
disclosure and collection rules, but that is the consumer's own claim
against the creditor for the creditor's conduct, not the creditor's deadline
to sue the consumer on the underlying debt, so it's a different clock
entirely.)

What if the debt originated in another state?

Wisconsin's borrowing statute, § 893.07, does not carry the resident
carve-out that some other states' borrowing statutes do. It applies the
shorter of Wisconsin's own period or the period of the state where the
claim arose, regardless of the parties' residency: no action may be
maintained in Wisconsin if the foreign period has already expired
(§ 893.07(1)), and no action may be maintained even if the foreign period
hasn't expired but Wisconsin's own shorter period has (§ 893.07(2)). Prior
to 1979, Wisconsin's borrowing statute exempted Wisconsin residents from the
shorter foreign period; the current version, in place since 1979, applies
the shorter period across the board.

What actually happens once the deadline passes?

More than the ordinary affirmative-defense default. Section 893.05 states
plainly: "When the period within which an action may be commenced on a
Wisconsin cause of action has expired, the right is extinguished as well as
the remedy." Wisconsin courts have described this as meaning the statute of
limitations doesn't just bar the remedy the way it does in many states, it extinguishes the cause of action itself, creating a corresponding right
for the defendant to insist on that bar. That's a real, substantive
difference from an ordinary affirmative defense, even though it operates
through the same courtroom mechanism (the debtor still has to raise it in
the lawsuit).

What trips people up

Because Wisconsin doesn't shorten the deadline for oral or open-account
debt, assuming a verbal loan or informal tab has a shorter clock than a
signed note is a mistake here, both get the same six years. The
acknowledgment-versus-payment distinction is also easy to get backwards: a
signed letter promising to pay only counts if it's actually signed, while an
unsigned, wordless payment can restart the clock on its own. And Wisconsin's
"right is extinguished" language in § 893.05 is easy to over-read, it
doesn't mean the debt vanishes for every purpose (it can still be reported
or voluntarily paid), only that the legal right to force payment through a
lawsuit is gone once the six years run.

Common questions

Does the 6-year period apply to my credit card debt?
Yes. A credit card balance falls under § 893.43(1)'s single 6-year period,
whether or not there's a signed cardholder agreement behind it, Wisconsin
doesn't split written from unwritten debt the way many states do.

I made a small payment on an old debt, did that restart the clock?
If the payment was made before the 6-year deadline had already run, yes:
Wisconsin case law treats a partial payment of principal or interest as
tolling the statute and restarting it from the date of payment, with no
signed writing required.

Can a debt collector still sue me after the statute of limitations runs?
By Wisconsin's own statute, no, § 893.05 says the right itself, not just
the remedy, is extinguished once the period runs. As a practical matter you
would still need to raise the expired deadline as a defense if you're sued.

Does the debt just disappear once the time limit passes?
Not entirely. It can still be reported and voluntarily paid; what's gone
under Wisconsin law is the legal right to force payment through a lawsuit.

Statutes and sources

• Wis. Stat. § 893.43(1), "an action upon any contract, obligation, or
  liability, express or implied ... shall be commenced within 6 years after
  the cause of action accrues or be barred.", https://law.justia.com/codes/wisconsin/chapter-893/section-893-43/
  (accessed 2026-07-09)
• Wis. Stat. § 893.45, "No acknowledgment or promise shall be sufficient
  evidence of a new or continuing contract ... unless the same be contained
  in some writing signed by the party to be charged thereby.", https://law.justia.com/codes/wisconsin/chapter-893/section-893-45/
  (accessed 2026-07-09)
• Wis. Stat. § 893.48, "Nothing contained in ss. 893.44 to 893.47 shall
  alter, take away or lessen the effect of a payment of any principal or
  interest made by any person ...", https://law.justia.com/codes/wisconsin/chapter-893/section-893-48/
  (accessed 2026-07-09)
• Wis. Stat. § 893.07, "If an action is brought in this state on a
  foreign cause of action and the foreign period of limitation which
  applies has expired, no action may be maintained in this state ...", https://law.justia.com/codes/wisconsin/chapter-893/section-893-07/
  (accessed 2026-07-09)
• Wis. Stat. § 893.05, "When the period within which an action may be
  commenced on a Wisconsin cause of action has expired, the right is
  extinguished as well as the remedy.", https://law.justia.com/codes/wisconsin/chapter-893/section-893-05/
  (accessed 2026-07-09)
• CLL Associates v. Arrowhead Pacific Corp., 174 Wis. 2d 604, 497 N.W.2d
  115 (1993), "A contract cause of action accrues at the time of the
  breach. The discovery rule is inapplicable," per the official § 893.43
  annotation at
  https://docs.legis.wisconsin.gov/document/statutes/893.43 (accessed
  2026-07-09).
• St. Mary's Hospital Medical Center v. Tarkenton, 103 Wis. 2d 422, 309
  N.W.2d 14 (Ct. App. 1981), "Partial payment of an obligation made prior
  to the running of the statute of limitations tolls the statute and sets
  it running from the date of payment," per the official § 893.43
  annotation at
  https://docs.legis.wisconsin.gov/document/statutes/893.43 (accessed
  2026-07-09).