An over-the-counter tax lien list is a county’s inventory of delinquent property tax liens that went unsold at the annual public auction and are now available for direct purchase at a fixed price. Because no investor bid on these certificates during the competitive sale, they carry the statutory maximum interest rate allowed in the state, often somewhere between 8% and 18% per year. You buy them from the county treasurer or tax collector on a first-come, first-served basis at face value plus a small processing fee. The catch is that these liens went unclaimed for a reason, and the property behind each one deserves careful review before you spend anything.
Why These Liens Sit on a List
Every lien on the list started at auction. A property owner fell behind on taxes, the county attached a lien for the unpaid amount, and the lien went to a public sale. In most tax lien states, bidders compete by accepting progressively lower interest rates, so attractive properties get bid down into the low single digits. When no one bids at all, the county strikes the lien off to itself and drops it into what’s variously called an over-the-counter inventory, an assignment list, or a repository.
Roughly 15 states run pure tax lien systems, with a handful more using hybrid lien-and-deed models. Not every tax lien state operates an over-the-counter program, so the first call is always to the specific county treasurer’s office to confirm one exists and get the current rules.
Where to Find the List
The county treasurer or tax collector holds the list. Some counties post it on the county website. Others require you to visit in person or call to request a copy. A growing number use third-party auction platforms that host both the live sale and the post-auction inventory, which means registering on a private site rather than dealing with the county directly.
Lists refresh after each annual sale, once the county tallies which certificates went unsold. In active jurisdictions the inventory shifts more often, because property owners redeem their liens (pay the debt off) and those entries disappear without notice. Some counties update monthly; others only when they process a new batch of redemptions. Checking back regularly matters, because the better liens get taken quickly.
What You’ll See on Each Entry
An over-the-counter listing gives you the basic identifiers for the lien and the property behind it. A typical entry includes:
- Parcel identification number, the unique code the county uses in its records
- Legal description with lot number and subdivision or tract information
- Delinquent taxpayer name as recorded when the lien was created
- Face value: unpaid taxes, penalties, accrued interest, and administrative fees to date
- Certificate number for that specific lien
- Year of delinquency, since a single property can carry multiple liens for different tax years
The face value is what you pay. There is no bidding, so you either buy at the listed amount or you don’t.
Why the Interest Rate Is Higher Than at Auction
At a live auction, competing bidders drive rates down. A certificate with a 16% statutory ceiling might close at 3% or 4% on a desirable property. Over-the-counter liens skip that process entirely. Because no one bid, the certificate keeps whatever rate the county assigned when it was struck off, which is almost always the state maximum. That rate applies from the date of the original sale, not the date you buy, so you earn interest on the full time the lien has been outstanding.
The obvious question is why no one bid. Usually the property looked unattractive to every investor in the room: low market value, unclear title, physical problems, or a location that makes foreclosure impractical. A high rate on a lien that never redeems is worth nothing if your principal never comes back.
How to Buy an Over-the-Counter Lien
The purchase process varies by county but generally follows the same pattern. You submit a purchase application or assignment request to the tax collector, identifying the specific liens you want by parcel number and certificate number. Errors in either number can get an application rejected, so verify them against the list.
Most counties require a completed W-9 before processing any purchase. The W-9 gives the county your taxpayer identification number so it can report interest paid to you on Form 1099-INT once payments hit $10 or more in a year.1Internal Revenue Service. About Form 1099-INT, Interest Income Without a W-9 on file, expect the county to withhold a portion of your interest under federal backup withholding rules.2Internal Revenue Service. Form W-9 Request for Taxpayer Identification Number and Certification
Payment typically must be in certified funds: a cashier’s check, money order, or wire transfer. Some counties accept electronic payment through their portal, but personal checks are rarely honored. Administrative fees run roughly $10 to $75 per lien on top of the face value. After payment clears and the county verifies the owner hasn’t redeemed the lien in the meantime, you receive a tax lien certificate showing your investment, the interest rate, and the redemption deadline.
What You’re Actually Buying
The certificate is not the property. It’s the right to collect interest when the owner pays off the delinquent taxes, and the right to pursue foreclosure if they don’t. The window during which the owner can pay you off and keep the property is the redemption period, and it varies dramatically by state, from as short as 60 days to four years or more.
When the owner redeems, the county pays you back your principal plus accrued interest at the certificate rate. That is the outcome most lien investors want: a predictable return with no property to manage. If the owner doesn’t redeem within the statutory window, you gain the right to initiate foreclosure, which can eventually lead to a tax deed transferring ownership to you.
One detail trips up new buyers. You may need to pay subsequent years’ taxes on the same property to protect your original lien. If a later year’s lien is sold to a different investor, that investor could foreclose and wipe out your position. Experienced buyers budget for these subsequent payments as part of the strategy.
Due Diligence Before You Pay
The county has no duty to tell you whether a property is worth anything. Over-the-counter liens went unsold because auction bidders passed on them, and the reasons are usually discoverable with modest research. Before committing money, work through at least the following:
- Check assessed value and recent comparable sales. If the lien amount approaches or exceeds market value, the owner has little reason to redeem.
- Verify the property type. Many over-the-counter liens attach to vacant lots, drainage easements, unusable slivers, or abandoned structures. A lien on a residential home is a different investment from a lien on a landlocked quarter-acre.
- Run a title search. Look for mortgages, judgment liens, HOA liens, or other encumbrances. Property tax liens generally take priority, but the full picture matters if you ever foreclose.
- Look at the physical property. Drive by it, or pull satellite imagery. Dilapidated structures, visible dumping, or proximity to industrial sites are warnings.
- Check environmental records. Most beginners skip this step, and it is potentially the most expensive mistake possible.
Risks That Catch Buyers Off Guard
Environmental Liability
If you foreclose and take ownership of a contaminated property, you can be personally liable for cleanup costs under federal environmental law. Under CERCLA, the current owner of a site where hazardous substances were released is liable for remediation, regardless of who caused the contamination.3Office of the Law Revision Counsel. 42 USC 9607 – Liability A limited innocent-purchaser defense exists for buyers who conducted thorough environmental due diligence before acquiring the property, but it requires proving you had no reason to know about the contamination at purchase.4Office of the Law Revision Counsel. 42 USC 9601 – Definitions Cleanup costs regularly run into six or seven figures. A $500 lien on a contaminated lot can turn into a financial catastrophe.
Bankruptcy by the Property Owner
If the owner files bankruptcy, an automatic stay halts most collection actions against them, including your ability to foreclose.5Office of the Law Revision Counsel. 11 USC 362 – Automatic Stay Your lien survives and the debt doesn’t disappear, but your enforcement timeline stretches while the case plays out. Under Chapter 13 the debtor can roll the delinquent taxes into a three- to five-year repayment plan, which means you eventually get paid on the court’s schedule, not yours.
Properties No One Will Redeem
The most common risk is the most mundane. You buy a lien on a property the owner has effectively abandoned. If taxes exceed value, no rational owner redeems. You hold a certificate that earns interest on paper but produces no cash. You could foreclose, but then you own a property no one wanted, and you’re on the hook for maintaining it, insuring it, and paying future taxes. This is how most over-the-counter losses happen: not through legal drama but through buying liens on worthless land at the maximum rate and watching them sit forever.
Lien Priority and the IRS
Property tax liens sit high in the hierarchy of claims against real estate. A local real property tax lien that takes priority over security interests under state law also takes priority over a federal tax lien filed by the IRS.6Office of the Law Revision Counsel. 26 USC 6323 – Validity and Priority Against Certain Persons The IRS confirms this superpriority in its own procedures.7Internal Revenue Service. 5.17.2 Federal Tax Liens That said, if the IRS holds a lien on the property, it retains a 120-day right of redemption after a tax foreclosure sale, during which it can pay the purchase price and take the property. Mortgage lenders also have a strong incentive to pay off delinquent taxes rather than let a tax lien investor foreclose and extinguish their security interest. When a lender redeems, you get principal and interest back, which is a fine result, but you lose any chance at acquiring the property.
Tax Treatment of What You Earn
Interest from tax lien certificates is ordinary income, taxable in the year received. Federal law defines gross income to include interest from any source.8Office of the Law Revision Counsel. 26 USC 61 – Gross Income Defined The county reports it to you and the IRS on Form 1099-INT once payments reach $10 in a calendar year.1Internal Revenue Service. About Form 1099-INT, Interest Income Below that threshold you still owe tax; the reporting requirement is on the payer, but the income obligation is on you.
If the Lien Ripens Into a Deed
If the redemption period expires and the owner has not paid, you can convert your lien into ownership. The path varies by jurisdiction but generally involves notifying every party with a recorded interest in the property (the owner, mortgage holders, other lienholders), publishing legal notices in a local newspaper, and filing proof of notification with the county. The county then issues a tax deed transferring the property to you.
A tax deed does not automatically give you clean, marketable title. Prior owners, mortgage holders, or heirs may retain residual claims, and title insurance companies are often unwilling to insure a tax deed without a court order clearing those claims. That order comes from a quiet title action, a lawsuit asking the court to confirm your ownership and extinguish competing interests. A straightforward single-property quiet title can run $2,750 or more, with costs rising when multiple claimants are involved. Budget for it before treating the property as a windfall, because without a quiet title judgment, selling or refinancing can be difficult or impossible.
Who Cannot Buy
Most jurisdictions bar certain people from purchasing to prevent conflicts of interest. County employees involved in the tax sale process are commonly disqualified, as are elected officials with oversight of the tax collector’s office. Some states extend the ban to immediate family members. Rules vary, so if you have any connection to local government, check with the county before submitting an application. Applying while disqualified can void the transaction and, in some places, carry additional penalties.