Idaho Statute of Limitations on Business Debt: What Creditors Owed by a Boise Company Need to Know

A creditor owed by an Idaho company has five years to sue on a contract founded on a signed writing, four years on an oral agreement or an open account, four years on a sale of goods, and eleven years on a judgment. Those periods come from the Idaho Code, and the one most trade creditors live under is the four years, because most receivables are a stack of invoices and a course of dealing, not a signed instrument.

Four years is shorter than it sounds. The statute does not pause while your customer in Meridian promises a check. Below is what the statutes say, where the clock starts, what moves it, and what to do with a Boise account that has gone quiet. Laws vary by state and this is general information, not legal advice.

Key takeaways

• Idaho Code 5-216 gives five years to an action on a contract, obligation or liability founded upon an instrument in writing. Idaho Code 5-217 gives four years to one not founded upon a writing, which is where an oral agreement and most open accounts land.
• A contract for the sale of goods gets four years under Idaho Code 28-2-725, and the original agreement can cut that to as little as one year but cannot extend it. The clock starts at the breach whether or not the seller knew of it.
• Under Idaho Code 5-238 a written acknowledgment or promise has to be signed by the debtor to restart the period, but any payment of principal or interest counts as a new signed promise to pay the rest. A real payment moves the clock. A phone call does not.
• A judgment can be sued on for eleven years under Idaho Code 5-215, a recorded judgment is a lien on the debtor's real property for ten years under 10-1110, and 10-1111 lets the court renew it before the lien expires, which restarts the period.
• Idaho requires a collection agency to hold a license from the Department of Finance under Idaho Code 26-2223, and the Act covers any account, bill, claim or other indebtedness, commercial accounts included.

How long do you have to sue on a business debt in Idaho?

Direct answer

Five years on a contract, obligation or liability founded upon an instrument in writing under Idaho Code 5-216. Four years on one not founded upon a writing under 5-217, which covers an oral agreement and an open account. Four years on a sale of goods under 28-2-725. Eleven years on a judgment under 5-215.

Idaho draws the line most states draw and Oregon does not: it asks whether the obligation is founded upon an instrument in writing. Idaho Code 5-216 gives five years to an action upon any contract, obligation or liability founded upon an instrument in writing. Idaho Code 5-217 gives four years to one not founded upon an instrument of writing. A signed credit agreement or a promissory note: five years. A phone order or a string of invoices that nobody ever signed: four.

For a trade creditor the honest answer is that most accounts are four year accounts. An invoice is a bill, not a contract the customer signed. Plan every Idaho account around four years and treat the extra year under 5-216 as something your signed paperwork may earn you, not something you have by default.

Idaho has no separate section for an account the way Oregon does, and nothing in the chapter says a running account is measured from the last item. The clock starts when the cause of action accrues, which for an unpaid invoice is the day it went unpaid. Whether a continuous trading relationship is one running obligation or a series of invoices, each with its own clock, is a question for an Idaho attorney with the ledger in front of them. The conservative assumption is that each invoice ages on its own. The judgment period under 5-215 is the outlier, and it gets its own section below.

Does a signed credit application give an Idaho open account five years or four?

Direct answer

It depends on what the writing says. Plan on four. Idaho Code 5-217 puts a contract not founded upon an instrument in writing at four years, and an open account built on invoices and a course of dealing is usually that. A signed instrument that sets out the obligation to pay is what 5-216 rewards with five.

Credit managers in the Treasure Valley ask me this more than anything else, and I will not pretend the statute gives a crisp answer. The phrase in 5-216 is founded upon an instrument in writing. A signed credit application that states the terms of sale and an agreement to pay for purchases on credit gives a creditor a real argument that the account is founded on a writing. One that only collects trade references and a tax ID number is a writing too, but the obligation to pay does not rest on it, and I would not expect it to buy an extra year.

Three practical points follow. Get the credit application signed, with the paragraph that says the customer agrees to pay on the stated terms in it, because that sentence makes it an instrument rather than a form. Keep the signed copy where you can find it in five years, because a writing you cannot produce is an unwritten contract. And do not let the possibility of five years change how you work the account. An Idaho receivable approaching four years old has lost most of its value whatever the statute says. Washington and Oregon give six years to an account whether or not anything was signed, which makes a signature worth more in Boise than in Portland or Seattle.

Does a sale of goods get a different period in Idaho?

Direct answer

Idaho Code 28-2-725 requires an action for breach of any contract for sale to be commenced within four years after it accrued, and the original agreement may reduce that to not less than one year but may not extend it. The claim accrues at the breach whether or not the seller knew of it.

Idaho's Uniform Commercial Code, Article 2, governs contracts for the sale of goods, which covers most of the distributors, manufacturers, food processors and farm suppliers reading this. Where the general chapter would give a signed supply agreement five years, 28-2-725 gives a contract for sale four. If you sell product on a signed master agreement to a customer in Nampa, you are on the four year clock, not the five.

Three things in the section deserve a credit manager's attention. The period can be shortened by agreement, down to one year, and the original agreement controls, so a customer's purchase order terms or a master supply agreement you signed years ago can do exactly that, and more than one seller has found the one year clause after the year had run. The period cannot be extended by agreement, so a clause in your own terms claiming six years does nothing. And the cause of action accrues when the breach occurs, regardless of the aggrieved party's lack of knowledge of the breach, which for a nonpayment means the due date, not the day someone in accounts receivable noticed.

Does a payment or a promise to pay restart the clock in Idaho?

Direct answer

A payment does. Idaho Code 5-238 says any payment of principal or interest is equivalent to a new promise in writing, duly signed, to pay the residue of the debt. An acknowledgment or promise counts only if it is contained in some writing signed by the party to be charged. A voicemail promising a check changes nothing.

Idaho puts both rules in one section, and it is more generous to creditors than most of its neighbors. The first half of 5-238 is the familiar one: no acknowledgment or promise takes the case out of the chapter unless it is contained in some writing signed by the party to be charged. The controller's email confirming the balance and committing to a schedule is a writing, and whether a typed name on it is a signature is a question for an Idaho attorney, so get the email anyway. The phone call is worth nothing here, however sincere it sounded.

The second half is the Idaho twist. Any payment of principal or interest is equivalent to a new promise in writing, duly signed, to pay the residue of the debt. A customer in Idaho Falls who sends five hundred dollars against a twelve thousand dollar balance has, in the words of the statute, made a new signed promise to pay the rest, and the period on the residue runs from that payment.

Two cautions. The section does not say that a payment made after the period has already run brings a dead claim back, so do not rely on a late payment to resurrect an expired account without asking an Idaho attorney. And money sent for a new order and applied by your system to the oldest invoice is an entry you may have to defend, so apply payments the way the customer directed. When a customer offers a small payment to buy time, take it, document it and keep working the account. The payment helps you. The time does not.

What if the claim arose in another state, or the customer left Idaho?

Direct answer

Idaho Code 5-239 is a borrowing statute: a claim that arose in another state or country and is time barred there cannot be maintained in Idaho, unless the creditor has been an Idaho citizen holding it since it accrued. Under 5-229, a defendant's time out of the state after the claim accrues does not count against you.

Idaho's rule is the opposite of Oregon's and closer to Utah's. Oregon imports the other state's limitation period, longer or shorter. Idaho Code 5-239 only closes a door: when a cause of action arose in another state or a foreign country and is barred there by the lapse of time, it shall not be maintained in Idaho either. The exception is for one who has been a citizen of this state and has held the cause of action from the time it accrued.

For an out of state creditor chasing an Idaho customer the practical reading is simple. If the claim arose in your state and your period is shorter, the shorter period follows you to Boise. If yours is longer, Idaho does not lend you the extra time. Work the account against the shortest period any plausible state would apply.

Idaho Code 5-229 tolls the period while a defendant is out of the state. Read that narrowly. An LLC with a registered agent on file with the Secretary of State can be served while its owner is at a cabin in Montana. Treat tolling as a question for an Idaho attorney, not as time you have.

How long can an Idaho judgment be enforced?

Direct answer

Eleven years for an action upon a judgment under Idaho Code 5-215. A judgment recorded with the county recorder is a lien on the debtor's real property in that county for ten years from the date of the judgment under 10-1110, and 10-1111 lets the court renew it before the lien expires, which restarts the eleven years.

The eleven years in 5-215 is longer than any contract period in the state. The lien is separate. Under 10-1110 a certified transcript or abstract of the judgment may be recorded with any county recorder, and from recording it is a lien on the judgment debtor's non-exempt real property in that county, owned then or acquired before the lien expires. The lien continues ten years from the date of the judgment unless the judgment is satisfied or stayed on appeal.

Idaho Code 10-1111 is the renewal section. On motion made before the lien expires, the court that entered the judgment may renew it, the renewed lien continues ten years from the renewal order, the original judgment date and priority are kept, and the time for an action on the judgment under 5-215 restarts. A creditor who records the judgment where the debtor owns land and renews before year ten can hold an Idaho judgment for as long as the debtor stays in business, and a customer with nothing to take today in Caldwell may not be in that position in six years. Let the lien lapse and you start over at the back of the line.

Can you take an Idaho business debt to small claims court?

Direct answer

Yes, within limits. Idaho Code 1-2301 gives the small claims department of the magistrate division jurisdiction over claims to recover money where the amount does not exceed $15,000. Under 1-2307 no attorney may appear for any party at the trial, and an assignee of the claim, including a licensed collection agency, may bring the action.

Idaho's small claims department sits inside the magistrate division in each county, and the legislature raised the ceiling to $15,000 in its 2026 session, which covers a meaningful share of commercial invoices. The claim is filed where the defendant resides or where the cause of action arose, and there is no jury.

The rule that makes Idaho different is in 1-2307. No attorney at law shall appear before the court on behalf of any party at any trial, pretrial matter or posttrial motion in the small claims department. An attorney can advise you beforehand, but at the hearing it is you, or your credit manager, against whoever the customer sends. The same section lets any assignee of a claim, including a licensed collection agency, bring the action.

Two cautions before you file. The $15,000 figure is a ceiling on the claim, not an invitation to cut a larger balance down to fit. And a filing is public and adversarial, and a customer with a story about the goods will tell it to the magistrate. For most accounts in the range we handle, from $1,000 to hundreds of thousands of dollars, the right first step is still a professional collection effort before anyone files anything. Once a claim moves toward court the interest question gets decided by the contract and by Idaho Code 28-22-104, which sets a legal rate of twelve percent a year on money after it becomes due when no written contract fixes a different rate, and on an open account unpaid three months after the last item. An agency effort costs nothing unless it collects, and it keeps the courthouse in reserve.

Does a collection agency need an Idaho license?

Direct answer

Yes. Under Idaho Code 26-2223 no person may, without complying with the Idaho Collection Agency Act and obtaining a license from the director of the Department of Finance, operate as a collection agency in the state or engage in the business of collecting payment for others of any account, bill, claim or other indebtedness. Commercial accounts are included.

The Idaho Collection Agency Act is Title 26, chapter 22 of the Idaho Code, and the Department of Finance administers it. Section 26-2223 lists what a person may not do without a license, and the list is written around debts generally: operate as a collection agency in this state; collect or receive payment for others of any account, bill, claim or other indebtedness; solicit or advertise in the state to collect for another. Nothing in it limits the Act to consumer debt. The word consumer appears only in the subsection about credit repair. A firm that collects commercial accounts in Idaho needs the license.

The exemptions in 26-2239 confirm it. They cover attorneys, regulated lenders, banks, government agencies, real estate brokers, escrow and mortgage businesses, court appointed receivers and a collector working only for related companies. There is no exemption for commercial collections.

For a creditor the lesson is to ask. An agency that cannot show you its Idaho license is an agency whose demand letters your customer can ignore. That is why it is important to use a certified commercial collection agency. Sven works with C2C Resources, which is licensed as a collection agency in Idaho, certified by the Commercial Law League of America, endorsed by the International Association of Commercial Collectors, and carries a $500,000 surety bond. C2C has collected more than $1 billion for 35,000+ clients since 2002, and its collectors average more than 25 years in the work. Our where we collect page lists the states we work, Idaho included.

What should a creditor do with a Boise account right now?

Direct answer

Sort the paperwork into signed and unsigned, because that decides four years or five. Fix the dates: the due date of each invoice, the last payment and any signed acknowledgment. Read your own terms and the customer's for a limitations clause on goods. Put the account on hold. Then place it while most of the four years are ahead.

Here is the order I would work an Idaho account in. First, the documents. Find the signed credit application, the purchase orders and the invoices, and sort them into what the customer signed and what it did not. That sort is the limitation analysis in Idaho, because 5-216 and 5-217 turn on it.

Second, the dates. The due date of each unpaid invoice, since the conservative view is that each one ages on its own. The date and amount of the last payment, because under 5-238 that payment is a new signed promise and the period on the residue runs from it. The date of any email in which the customer acknowledged the balance.

Third, the terms. Read your own credit agreement for interest and service charges, because a charge that first appears on a past due statement is the first thing a customer disputes. Read the customer's paper for a limitations clause on goods.

Fourth, decide. Four years goes faster than it sounds, and a two year old Idaho account has lost the people who approved the purchase and most of its leverage. The neighboring states are in the Washington, Oregon, Utah, Nevada and Colorado guides, and the full statute of limitations by state table covers a customer anywhere else. Idaho construction creditors have a second, much shorter clock, the lien deadline, covered in the construction collections guide.

Book a Call with Sven

Prefer the phone? 866-341-6316. Or schedule a free consultation online. You can see how the process works on our commercial debt collection services page, and the resources page has credit application and collection letter templates for the paperwork side of this.

Frequently asked questions

Is the Idaho statute of limitations different for a business debt than for a consumer debt?

Idaho Code 5-216 and 5-217 apply to contracts generally, business or consumer. What differs is the paperwork around a commercial account: a signed credit application, purchase orders and a payment history that decide whether the claim is founded on a writing, when each invoice came due and whether the sale of goods rule applies instead. We handle commercial (B2B) claims only, so this article is written for the creditor side of a business account.

Our Boise customer never signed anything. How long do we have in Idaho?

Four years. Idaho Code 5-217 gives four years to an action on a contract, obligation or liability not founded upon an instrument in writing, which is where an oral agreement and an account built on invoices and a course of dealing land. A sale of goods is also four years under 28-2-725. The five years in 5-216 belongs to a claim founded on a signed instrument, so without a signature you have lost a year, not the claim.

The customer sent a small payment last month. Did that restart the Idaho clock?

Under Idaho Code 5-238, any payment of principal or interest is equivalent to a new promise in writing, duly signed, to pay the residue of the debt, so a payment on an existing debt starts the period again on the balance. Record what the payment was for and how it was applied. Whether a payment made after the period has already run revives an expired claim is a question for an Idaho attorney, not something to plan on.

Can we charge interest on a past due Idaho invoice if our terms never mention it?

Idaho sets a legal rate by statute for money after it becomes due, and for an open account unpaid three months after the date of the last item, where there is no express written contract fixing a different rate. Where you extended credit terms such as net 30, any service charge or interest belongs in the written credit agreement the customer signed, and a charge that appears for the first time on a past due statement is the first thing a customer disputes.

What size of claim can you help with?

We work commercial claims from $1,000 to hundreds of thousands of dollars, under 120 days past due, on contingency, so there is no fee unless we collect. Commercial (B2B) collections only. We do not collect consumer debt. That covers accounts owed by companies in Boise, Meridian, Nampa, Caldwell, Idaho Falls, Pocatello, Twin Falls, Coeur d'Alene and the rest of Idaho. Yes, we collect internationally. Talk to us about your specific account.

Sources: Idaho Code as published by the Idaho Legislature at legislature.idaho.gov: Title 5, chapter 2 (5-215, 5-216, 5-217, 5-229, 5-238 and 5-239), Title 28, chapter 2 (28-2-725), Title 28, chapter 22 (28-22-104), Title 10, chapter 11 (10-1110 and 10-1111), Title 1, chapter 23 (1-2301 and 1-2307) and Title 26, chapter 22, the Idaho Collection Agency Act (26-2222, 26-2223 and 26-2239), all reviewed October 2026. Laws vary by state and change over time, and the facts of each account matter. This article is general information from a commercial collections professional, not legal advice, and it is not a substitute for advice from an Idaho attorney. Written by Sven Nelson, The Guy That Gets You Paid.