Can I buy OTC tax liens remotely, or do I have to appear in person?

It depends entirely on the county. Florida and Arizona allow fully remote OTC purchases through their online portals. Indiana and many Illinois counties require in-person visits to the county office. Call the treasurer's office directly before you travel anywhere — procedures change year to year and aren't always updated on the county website.

If a lien went unsold at auction, doesn't that mean the property is worthless?

Not necessarily. Many properties go unsold because auction bidders avoid anything that requires research — rural land, odd-shaped lots, properties with non-IRS title encumbrances. A lien on a 20-acre agricultural parcel in Iowa might go unsold simply because online bidders didn't recognize the value. The unsold status is a signal to investigate more carefully, not a verdict on the property's worth.

What happens if I buy an OTC lien and the county made an error on the original assessment?

This is a real risk. If the underlying assessment is successfully challenged after you purchase the certificate, the lien amount can be reduced or voided, and the county typically refunds only what they received — not your expected interest. In some states, you have no recourse against the county for assessment errors made before you purchased. Always cross-check the parcel ID, legal description, and assessed value in the county records before funding.

How do I find out what OTC liens are available in a specific county right now?

Call the county treasurer or tax collector directly and ask if they maintain an OTC list. Many counties post lists on their websites under 'unsold certificates' or 'struck-off' properties. In Florida, most tax collectors publish OTC lists within 30–60 days of the annual auction in late May. In Arizona, the county treasurer's online portal is updated in real time. Some rural counties have no online list and will email you a spreadsheet on request.

Can two investors buy OTC liens on the same property for different tax years?

Yes, and this happens regularly. Each tax year generates a separate lien, and each can be held by a different investor. If you hold a 2021 certificate and someone else holds a 2022 certificate on the same parcel, neither of you can foreclose without dealing with the other. In most states, the senior lien holder (earliest year) controls the foreclosure process, but subsequent lien holders must be notified and their amounts included in any deed application. Before buying OTC, check whether prior-year certificates are outstanding and who holds them.

How to Buy OTC Tax Liens

You can buy over-the-counter (OTC) tax liens directly from the county treasurer's office after they go unsold at the annual auction — no bidding, no competition, and the interest rate is fixed at the statutory maximum for that state.

Most investors fixate on live auctions and miss this entirely. Counties are left holding unsold certificates every year, and they'll sell them to whoever walks in — or in many cases, submits a simple written request — at full face value plus the maximum statutory rate. In New Jersey, that's 18%. In Florida, it's 18%. In Illinois, it can reach 36% on the penalty side. The certificates are already registered, the redemption clock is already running in many states, and you're stepping in mid-cycle.

Why Liens Go Unsold in the First Place

Auction bidders drive rates down. In a competitive Florida tax sale, certificate interest often gets bid down to 0.25% or lower on desirable properties. Investors pass entirely on properties with title problems, low assessed values, mobile homes on leased land, or parcels in flood zones. Those certificates go unsold — and that's where the OTC opportunity sits.

The properties aren't always junk. Rural vacant land, small commercial buildings in slow markets, and properties with deferred maintenance all get passed over at auction regularly. Some are legitimately problematic; others were simply ignored because competitive bidders focus on residential properties with clear title.

How the OTC Process Works by State

The mechanics vary, but the structure is consistent: after the auction closes, unsold liens become available directly through the county. Florida counties post their OTC lists on the county tax collector's website within weeks of the auction, typically in June. You submit a request form, fund the purchase, and receive the certificate — often within five business days.

Arizona is similar. Maricopa and Pima counties maintain searchable OTC lists on their treasurer portals year-round. You can buy online, and the certificate is issued immediately. The statutory rate is 16% annually.

Illinois works differently. Unsold liens from the annual tax sale go into a "Scavenger Sale" held every two years in Cook County. Outside Cook, individual counties handle OTC sales by direct request to the county clerk. Rates there are structured as penalties — 18% per six-month redemption period, not annualized — which is why the effective APR can look extreme on paper.

Some states, like Indiana, require you to appear in person at the county auditor's office and fill out a form. Others, like Georgia, don't have a traditional lien system at all and go straight to deed — which changes the math entirely.

Always confirm the current OTC list directly with the county. Florida's OTC process and statutory rates are documented in detail at taxsaleninja.com/states/fl.

What to Check Before You Buy OTC

The lien itself is not the risk. The property behind it is. Before purchasing any OTC certificate, run through these specific checks:

Title search: Look for IRS federal tax liens, which have a 120-day right of redemption after your foreclosure — even if state law gives the property owner only 90 days. An IRS lien doesn't kill the deal, but it adds time and legal cost. A title search from a local abstractor runs $150–$300 in most rural counties.

Property condition: Use county GIS and Google Street View at minimum. A structure worth $8,000 in a declining market doesn't support a $4,500 lien if you end up with the deed — especially once you factor in back utilities, county code violations, and demolition costs that can run $5,000–$12,000 in many Midwestern cities.

Redemption history: Ask the county if the prior owner has made any payments since the auction. A property that sat unsold at auction and has already had partial redemption activity is worth closer attention — it signals someone still cares about the property.

Assess the assessed value vs. market value gap: Counties in agricultural states often assess at 40–60% of market value. A $10,000 assessed value parcel might be worth $22,000–$25,000 on the open market, which changes the risk profile significantly.

Warning: OTC liens in counties with active demolition programs — Detroit, Cleveland, Baltimore — can foreclose into properties the city has already condemned. The county will still sell you the lien. They are not required to disclose active condemnation orders, and a condemned structure often means your deed comes with a mandatory demolition order and a bill from the city ranging from $8,000 to $15,000.

Funding and Holding the Certificate

OTC liens are cash purchases. No financing exists for individual tax certificates. You're writing a check or wiring funds to the county treasurer. Minimum purchases vary — some counties sell individual $200 certificates; others require a $1,000 minimum per transaction.

Once you hold the certificate, you'll need to track the redemption deadline precisely. Most states give property owners 2–3 years to redeem. Florida gives 2 years from the certificate issuance date. Arizona gives 3 years. If the owner redeems, you collect your principal plus accrued interest. If they don't, you apply for a tax deed — and that's where the real paperwork begins.

Miss the application deadline and your certificate can expire worthless. Set a calendar reminder 90 days before the earliest deed application window opens.

The Deed Application Process

Applying for a tax deed is not automatic. In Florida, you pay the county an application fee ($175–$250 depending on the county) plus the cost to notify all lien holders and title interest holders. The county then schedules a public auction of the property — you bid in your certificate value, and if no one outbids you, you get the deed. If someone does outbid you, you receive your certificate value back plus interest. You don't get to just keep the property quietly.

Illinois foreclosure is a judicial process. After the redemption period, you file in circuit court, serve the property owner, and obtain a court order. Attorney fees in downstate Illinois counties typically run $800–$1,500 for an uncontested foreclosure. Budget 6–12 months from filing to deed.

Tracking Your OTC Portfolio

Once you own more than a handful of certificates, tracking becomes the job. Each certificate has its own redemption deadline, deed application window, and county-specific renewal requirements — some states require annual registration fees to keep the certificate active. A missed renewal in Arizona voids the certificate entirely.

Spreadsheets work at small scale. At 20+ certificates across multiple counties, you need a purpose-built tracking system or you will miss a deadline. The cost of missing one application — losing a certificate you paid $3,000 for — exceeds any software cost many times over.