In most cases you have two years to start a legal claim for an unpaid invoice in Alberta, measured from the date you knew or ought to have known you had a claim. The statute of limitations on debt in Alberta does not erase what you are owed once that window closes. It gives the debtor a defence that will defeat your claim in court, which is a different thing entirely, and the distinction determines what recovery options remain available to you.
Key Takeaways
- Alberta’s basic limitation period for most debt claims is two years from discovery.
- A separate ten-year ultimate limitation period applies, and whichever expires first controls.
- Missing the deadline does not extinguish the debt, it gives the debtor immunity from liability if they raise it.
- A partial payment or signed written acknowledgment can restart the clock, though only if it happens before the period expires.
- Alberta separately restricts agencies from pursuing non-judgment consumer accounts past six years from the last payment.
- A judgment obtained in time converts a two-year claim window into a ten-year enforcement position.
This article provides general information about Alberta limitation periods and is not legal advice. Deadlines turn on the specific facts of each account.
The Two-Year Limitation Period Under Alberta’s Limitations Act
Section 3 of Alberta’s Limitations Act sets the basic rule. A claimant must seek a remedial order within two years of the date they first knew, or in the circumstances ought to have known, three things: that the injury occurred, that it was attributable to the defendant’s conduct, and that the injury warrants bringing a proceeding.
Translated into receivables terms, the clock generally starts when payment becomes overdue and you knew or reasonably should have known the customer was not going to pay. For a straightforward unpaid invoice, that is usually the date payment was due under your terms. Whether a specific account has expired is a legal question rather than an arithmetic one, which is why accounts of real value warrant legal services input before anyone writes them off.
Why the Start Date Is Not Always Obvious
Discoverability is where most disputes about timing arise. A customer who makes partial payments, sends reassuring emails, or negotiates in apparent good faith can genuinely obscure the point at which a reasonable creditor should have recognized the account was in trouble.
That ambiguity cuts both ways. It occasionally preserves a claim a creditor assumed was dead, and it more often produces an unwelcome surprise when a court concludes the clock started earlier than the creditor believed. Treating the payment due date as your working start date is the conservative approach, and it is the approach that protects you.
The Ten-Year Ultimate Limitation Period
Alongside the two-year rule, the Act imposes a ten-year ultimate limitation period running from the date the claim arose. Whichever period expires first is the one that governs.
For ordinary commercial receivables the two-year period is almost always the binding constraint. The ten-year backstop matters mainly where a claim was genuinely undiscoverable for an extended time, which is rare in the context of an invoice you issued yourself.
What Statute-Barred Actually Means
This is the single most misunderstood point in Canadian debt recovery, and getting it wrong costs creditors money in both directions.
When Alberta’s limitation period expires, the debt does not vanish. The Limitations Act entitles the defendant, on pleading the Act as a defence, to immunity from liability. Three consequences follow.
First, the debtor has to actually raise it, since a limitation defence is not applied automatically by the court. Second, the underlying obligation continues to exist, so voluntary payment remains entirely proper and a debtor who chooses to pay is not paying something they do not owe. Third, recovery avenues that do not depend on litigation may still be open.
The practical takeaway is that an aged account has lost one specific remedy rather than all of them, and pursuing payment through a third-party collection agency can still produce recovery where a lawsuit no longer can.
What Can Restart the Limitation Clock
Two events can reset the two-year period, which means the deadline on an account is not always what the invoice date suggests.
The critical condition is timing. Both events must occur while the limitation period is still running. A payment or acknowledgment made after the two years have already elapsed does not revive a claim that has expired, so this is a reason to review live accounts carefully rather than a reason to expect expired ones to come back.
Partial Payment
A payment made toward the debt generally restarts the clock from the date of that payment. A customer who pays $500 against a $9,000 balance in month twenty has, in most circumstances, handed you a fresh two-year window from that payment date.
Written Acknowledgment of the Debt
A written acknowledgment of the obligation, signed by the person liable, can have the same effect. An email in which a customer confirms the amount owing and asks for more time may qualify, depending on its wording and how it is signed.
Both rules make your correspondence file genuinely valuable. Before assuming an account has expired, check the payment history and the email trail for anything that may have reset the period while it was still live. Consistent accounts receivable management turns that review into a five-minute exercise rather than an archaeological dig.
The Separate Six-Year Rule for Consumer Accounts
Alberta layers a second timeline on top of the Limitations Act, and it applies specifically to collection agencies rather than to creditors generally.
Under the Collection and Debt Repayment Practices Regulation, a licensed collection agency is prohibited from attempting to collect an unpaid account from an Alberta resident more than six years after the date of last payment, with judgment debts excepted. This is a regulatory restriction on collection activity, distinct from the two-year court deadline.
Two points follow for creditors. Consumer accounts carry a hard outer boundary on agency collection activity that commercial accounts do not, and obtaining a judgment before that boundary arrives removes the restriction entirely.
How a Judgment Changes the Timeline
Winning a judgment before the limitation period expires transforms your position. Instead of a two-year claim window you hold an enforceable court order, and under the Limitations Act a claim based on a judgment for the payment of money carries a ten-year period rather than the standard two.
Enforcement carries its own deadlines. A writ of enforcement registered at the Personal Property Registry expires after two years, and the judgment creditor must file a status report before expiry to keep it active. Creditors let writs lapse routinely, and the Alberta Courts guidance on enforcing a judgment sets out the registration and renewal requirements in detail.
Claims up to $100,000 can be pursued through the Alberta Court of Justice, which is why navigating small claims court in Alberta is a realistic route for a large share of commercial receivables rather than something reserved for major disputes.
Why Two Years Is Shorter Than It Looks
On paper, two years sounds generous. The usable portion is considerably shorter, because a claim has to be assessed, documented, and filed before the deadline, not on it.
Consider a typical sequence. An invoice goes unpaid at 30 days. Internal reminders run through 90 days. A collections conversation happens somewhere around six months. The account then sits while someone decides what to do. By the time a creditor seriously considers legal action, twelve to eighteen months have often passed, and the file still needs review, document assembly, and preparation before anything reaches a courthouse.
An account handed to a collection agency with three months remaining is a materially different proposition from the same account handed over at nine months, because the range of available options narrows as the deadline approaches.
Protecting Your Position Before the Clock Runs Out
Five steps keep your options open:
- Record the limitation date on every overdue account. Add a field to your aging report showing the date two years from when payment became due.
- Audit your receivables quarterly for expiry risk. Anything approaching the eighteen-month mark needs a decision, not another reminder.
- Keep the correspondence trail. Emails acknowledging the balance and records of partial payments are the evidence that may extend your window.
- Escalate before the final quarter of the period. Handing an agency a file with weeks remaining severely limits what can be done with it.
- Get a legal assessment on accounts worth pursuing. Whether a period has expired or been validly reset is a legal determination, and the answer is not always the one the invoice date suggests.
Common Questions About Alberta Limitation Periods
The questions below come up constantly, and the answers are frequently the opposite of what creditors expect.
Can I still collect a debt that is more than two years old?
Yes, in the sense that the debt still exists and payment can still be sought. What you generally lose is the ability to enforce it through the courts if the debtor raises the limitation defence.
Does the two-year period start from the invoice date or the last payment?
It runs from when you knew or ought to have known you had a claim, which for most invoices is the payment due date. A partial payment made while the period is still running can restart it from the date of that payment.
Do the same rules apply everywhere in Canada?
No. Limitation periods are provincial. Several provinces use two years while others use six, and the rules governing whether a debt becomes merely unenforceable or is fully extinguished also differ. Multi-province receivables need to be assessed jurisdiction by jurisdiction.
Does sending an account to collections stop the clock?
No. Placing an account does not suspend or extend the limitation period. Only a qualifying payment, a qualifying acknowledgment, or the commencement of a legal proceeding affects it.
What if my customer is a business rather than an individual?
The two-year court deadline applies the same way. The difference is that commercial debt collection is not subject to the six-year restriction that applies to consumer accounts, so the collection window and the litigation window diverge.
Find Out Which of Your Accounts Are Still Actionable
Alberta courts have very limited room to relieve against an expired limitation period. An account that lapses stays lapsed, and the creditor rarely finds out until the defence appears in a statement of defence.
Any receivable outstanding longer than a year deserves a straight answer to one question: how much time is left on it, and is it worth escalating before that time runs out. That triage is quick, and it is far cheaper than discovering the answer in court.
Contact Bison Credit Solutions to have your aged receivables assessed against their limitation deadlines while options remain open.
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