TAX LIEN INVESTING GUIDE
Tax Lien Investing:
The Ultimate Guide
By Saen Higgins, founder of Tax Lien Method
Tax lien certificates sit at the center of how county government actually gets paid. For more than 250 years—longer than the United States has existed as a country—counties have used them to collect the property taxes that fund roads, bridges, fire protection, and the rest of the services people expect. When a property owner does not pay, the county does not simply wait. It is required to sell the resulting tax lien certificate to the public so the money is available now, not later. The property owner is given a redemption period, typically one to three years depending on the state and county, to pay the taxes plus the interest and costs that have accrued. That period is what you are really funding.
You are not buying the property. You are putting up the money the county is owed. In return, the state sets the interest rate you earn if the owner redeems—commonly 16 percent, 18 percent, and in some states as high as 25 percent. The goal is simple: get your money back plus that interest. The property itself is not the objective. Most liens are redeemed. When they are not, the process can lead to ownership, but that is the exception, not the plan, and it requires additional steps and costs you must understand before you bid.
Tax deeds are a different strategy entirely. If your goal is ownership of the property, a tax deed sale gives you that immediately. The county has already moved past the redemption period, and the winning bidder takes title. Tax liens are about high interest rates on money you put up for the county. Tax deeds are about acquiring properties at deep discounts. Both are real options, but they are not the same investment, and treating them as if they are leads to the wrong expectations and the wrong process.
This guide walks through how the system works in practice, how to choose certificates that fit your budget, what to verify before you put money down, and the risks that come with the investment. The rules differ by state, the numbers matter, and the difference between a solid return and a problem usually comes down to the work you do before the sale.
Explore the guide
- How tax liens arise from unpaid taxes
- Tax lien certificates and tax deeds explained
- Choosing between lien investing and tax deed investing
- Understanding interest rates on tax liens
- What the redemption period means
- Responsibilities of a tax lien holder
- Property research before you purchase tax liens
- Building an investment strategy for your budget
- Finding a tax sale and researching available listings
- Setting your winning bid before the auction
- What happens at a tax deed sale
- Tax deed investing after acquisition
- Risks investors need to understand
- Frequently asked questions
- Start with education and a researched first purchase
How tax liens arise from unpaid taxes
Every county runs on property taxes. They pay for the schools, the sheriff’s deputies, the roads you drive on, and the fire truck that shows up when you call. The county can’t put those bills on hold because a homeowner fell behind. So when property taxes go unpaid, state law tells the county exactly what to do next, and in many states that means a tax sale.
How that sale works depends on where the property sits. Some states sell tax lien certificates. You put up the delinquent taxes, and the owner pays the county back with interest during the redemption period.
This is important to understand: the property owner does not owe you the money they owe the county. Period. All you’ve done is lend the county the money (kind of). When the property owner pays the county, the county will see that you are the lienholder of record, and typically they’ll pay you anywhere from five to ten business days after that. Every state sets its own rules on this, so check with the county.
This is extremely important to know. The fact that the property owner owes the county the money gives you the power of a tax lien certificate with the authority of the county. If the property owner does not pay the property taxes within the redemption period, the power and authority of the lien being first position is still held with the county. You foreclose, but you become first position because it’s a county lien, not a private lien. That said, research is key. Not every claim gets wiped out, and some liens, easements, or other claims can survive in certain states, so know what survives before you bid.
Other states skip the lien and sell tax deeds, which means the property itself goes to the winning bidder. A few states use a mix of both. I call these Dual States (states that offer both liens and deeds). The unpaid taxes start the process either way, but what you walk away with is completely different.
With a tax lien, the property owner keeps the property. You don’t become a landlord. You don’t fix the roof, chase tenants, or pay the utilities. You’re funding a debt the owner owes the county, and the law puts you first in line to be repaid. Remember, the property owes the county the taxes, NOT you.
One mistake I see all the time is assuming a lien goes to auction after exactly one year of missed taxes. It doesn’t work that way everywhere. Every state and county sets its own timeline, bidding rules, and paperwork. Read the tax sale terms for that county before you put up a dollar.
Actually, I feel this is what makes tax liens and tax deeds so fun. Every state does it differently, and every county within that state can interpret those laws differently. Which means Big Money can’t systematize this.
This is another reason blanket statements like "tax liens get sold every year that they’re not paid" are completely untrue. Every state is different, and every county within that state could interpret those rules differently. There are 3,143 counties, and they all do it differently.
Watch the video where I walk you through how delinquent taxes become tax liens, and subscribe to my YouTube channel for more lessons like this.
Tax lien certificates and tax deeds explained
It’s actually very simple. When a property owner fails to pay their property taxes, some counties have the right to offer those up to investors like you and me. When you put up those monies for those delinquent taxes, you are giving the money to the county. You are not buying somebody’s property.
The county, in return, will give you the interest rate that is charged to the delinquent taxpayer; 16 to 18% is typical. In return, the property owner gets a redemption period to pay it back to the county. You pretty much have nothing to do with the property; you’re dealing with the county. That’s the beauty of it!
A tax deed transfers whatever interest the county is selling after a completed tax foreclosure or deed sale. When you are buying a tax deed, that property owner typically has been delinquent for at least four years. The county has foreclosed on the property, and the last act of foreclosure is selling it for the back taxes and any penalties and consequences that have gone into the property.
You will own the property at that point free and clear of all liens and encumbrances. This is a straight deed. Research is key, though. In certain states, some liens, easements, or other claims can survive a tax deed sale, so check before you bid.
There are a few states out there that offer the purchase of a deed and the property owner still has a redemption period. This goes back to knowing what you’re doing. Every state’s different, and every county is different within those states.
Put simply: tax liens are about repayment. Tax deeds are about acquisition. Both require research before you pay taxes, fees, or an auction deposit.
A tax deed does not promise you an empty house or clear title. Every tax deed state follows its own process, and in some states the former owner keeps rights even after the sale.
Choosing between lien investing and tax deed investing
For lien investing, ask yourself two questions. Do you want income from redemptions? And are you prepared to enforce your rights if the taxes stay delinquent?
For tax deed investing, you’re buying a property, so budget like an owner: the purchase, repairs, carrying costs, and future property taxes. A listing photograph won’t show you the roof, the foundation, or who is living there.
I tell beginners to screen single-family homes in an area they know, whether they’re looking at tax liens or tax deeds. Commercial property takes different expertise. Start your real estate investing with a small investment, and understand both the property and the taxes behind it.
Understanding interest rates on tax liens
The advertised interest rate is usually a ceiling set by state law, not a promise. Arizona sets a maximum of 16% a year on delinquent taxes, but its tax lien sale awards each lien to the bidder who accepts the lowest rate. Florida also awards certificates through rate bidding, and its ceiling is 18%.
Competition pushes interest rates down. The maximum tells you the most you can earn on delinquent taxes. It doesn’t tell you what you will earn on every investment.
Use a hypothetical tax lien of $1,800 at a 24% annual rate. After 12 months, simple interest is $432, so you’d get back $2,232 before fees. Those numbers show the arithmetic. They are not a property any county is offering.
At six months, the same example produces $216. That’s the part people miss. If the owner redeems early, a lien paying an annual rate doesn’t necessarily pay a full year’s interest. Your real number depends on the state law, your accepted bid, any minimum charges, and timing.
Hypothetical $1,800 principal at 24% simple annual interest, excluding fees.
What the redemption period means
The redemption period is the time the owner, and others with a legal interest in the property, have to pay the delinquent taxes and charges. While you hold tax liens, that is the time your money is working.
One to three years is common, but there is no universal redemption period. Arizona generally lets you start a foreclosure action three years after the lien sale. Florida generally lets you apply for a tax deed two years after April 1 of the year the certificate was issued. Those are the earliest dates you can act. Nothing transfers automatically when they arrive.
Some tax deed sales have a redemption period too. Harris County, Texas, describes two years for residence homesteads and 180 days for non-homestead properties. Confirm your parcel’s category and when the clock starts.
Calendar the redemption period, every notice, every deadline, and the expiration date. Match your investment horizon to that time frame. Some property owners pay early. When the taxes stay unpaid, your money stays tied up longer.
Responsibilities of a tax lien holder
As a tax lien holder, you keep your own records and follow the required procedures. Track the property, certificate number, purchase date, accepted rate, and any later taxes. Keep the county collecting office’s contact details in the same file.
When the property owner pays, the county collecting office handles the redemption under local law. Typically, that’s five to ten business days, but every state sets its own rules. Don’t assume every county pays out redeemed taxes on the same schedule.
Owners aren’t the only ones who pay. Mortgage lenders sometimes redeem tax liens to protect their position. Before you buy, learn who has the right to pay and how the county confirms redemption of tax liens. Review the other liens anyway.
If the taxes stay delinquent, you have to evaluate the remedy state law gives you. Foreclosure takes more than waiting out the redemption period. Notices, filings, title work, and foreclosure costs all affect an investment secured by the property.
Talk to an attorney before you enforce. Tax liens often come ahead of mortgage liens, but not every claim disappears. Before you acquire property for delinquent taxes, look at existing liens, surviving liens, and the notice you must give mortgage lenders. Again, I’m going to repeat: every single state and county operates differently. Know the local laws and procedures before you proceed on any tax lien or tax deed for that matter.
Property research before you purchase tax liens
My property research starts with the parcel identification number. I match it to the county maps, address, and photographs. That one step keeps you from buying tax liens on the wrong property.
Verify the legal description and boundaries in the official county records. Confirm access, zoning, and permitted use, and whether the listing is a whole home, a narrow strip of land, or some other interest. Make sure the taxes match the property being offered.
Estimate market value from recent comparable sales. The assessed value used for property taxes and an after-repair estimate serve different purposes. An address that looks valuable deserves the most careful look at the actual property and its condition.
Check delinquent taxes, current taxes, special assessments, code violations, and recorded claims, including liens in the mortgage history. For tax deeds, find out which taxes and obligations follow you after the deed is issued.
Look for flooding, contamination, demolition orders, and occupancy. Photographs help, but they don’t show you the inside.
Before you purchase tax liens, write down a conservative value, the additional taxes, and your worst-case expenses. If the market or the title is unfamiliar, talk to local real estate professionals.
Confirm parcel identity, condition, title, value, and required taxes before committing funds.
Building an investment strategy for your budget
Decide how much capital you’ll commit, and keep a separate reserve. Tax liens tie up your money until the delinquent taxes are redeemed, the rights are transferred, or enforcement is finished. Tax deeds add expenses after you acquire the property.
Your risk tolerance sets your deal size. Use money you don’t need for your regular bills, and compare fees and taxes against expected earnings before you buy tax liens.
I bought my first lien for $54 to learn the mechanics. In the same presentation, I walk through a $178.95 example. Tax liens under $200 exist, but availability and restrictions depend on the state and county. Florida, for example, restricts public sales of certain homestead certificates below $250.
Choose your investment strategy before you commit. Evaluate most tax lien certificates for one thing: repayment. For tax deeds, estimate what you’d net if you sell, rent, or renovate. Tax deed investing requires conservative costs, including taxes.
Finding a tax sale and researching available listings
Start with the official source: the county treasurer, tax collector, clerk, or the sale administrator the county has appointed. Ask for the tax sale listings, registration instructions, and current auction terms. Confirm any third-party auction link through the county government’s own website before you pay a deposit.
Some counties offer unsold tax liens through assignments after the tax lien sale. Researching that leftover inventory helped me find opportunities beyond the auction. Screen the property and the taxes just as carefully.
Tax deeds show up in resale programs, too. Ask what interest is conveyed, which taxes remain due, and whether the former owner’s rights have ended. Unsold tax deeds deserve extra scrutiny.
Many counties run their sales online. Confirm the rules, deposit, funding method, auction date, taxes, and cancellation terms with the county.
Watch one auction before you bid at one. See how investors register, bid, and pay for tax liens.
Setting your winning bid before the auction
In a rate-bidding tax lien sale, the investor who accepts the lowest interest wins. In a price-bidding tax deed sale, the highest bidder generally wins. Other formats exist, so learn how this county runs its sale.
For tax liens, set a minimum return after fees. For tax deed investing, start with a conservative resale value and subtract repairs, taxes, title work, holding costs, selling expenses, and your margin. What’s left is your limit.
The winning bidder must meet the deposit and payment deadlines. Florida generally requires you to fund a certificate within 48 hours after notification. Its tax deed auctions generally require full payment within 24 hours, excluding weekends and legal holidays. Check the county’s instructions for taxes and charges.
Keep your limit. A winning bid has to fit your plan. Passing on overpriced tax liens or tax deeds protects your capital.
What happens at a tax deed sale
A tax deed sale starts the same way a tax lien sale does, with unpaid property taxes. In a tax deed system, though, you’re going for ownership, not certificate income.
In Florida, the certificate holder’s application leads to the auction, and the winning bidder acquires the property interest offered. Holding the certificate doesn’t guarantee you get the property when the owner fails to redeem. Someone can outbid you.
There are several states that are going to this format of what I call a Dual State. Illinois and Colorado are the ones on the top of my mind. So, in other words, when you buy a tax lien certificate now in both Colorado and Illinois, instead of foreclosing on the property to acquire ownership, the county is going to foreclose it and bring it to a tax deed sale. And the way to get ownership of the property would be to go to the deed sale and put in a bid.
Florida is a Dual State: certificates first, tax deeds later. The opening bid includes specified taxes, fees, and other costs, and homestead property adds another consideration. Verify the county’s calculation before you bid.
After the sale, follow the recording requirements. A tax deed doesn’t give you immediate access or insurable title in every case. Review the purchase with an attorney before you enter the property.
Tax deed investing after acquisition
Tax deed investing continues after the auction. Confirm ownership, occupancy, insurance, and current property taxes. Buying tax deeds below market value still requires an operating budget.
Before you plan to sell the property, find out whether buyers and lenders will accept the title. A title company or attorney can tell you whether more work is needed. Tax deeds with unresolved defects or taxes are harder to sell to buyers using a mortgage.
For foreclosed homes, estimate repairs at current local prices. When you sell, count commissions, closing costs, taxes, and holding expenses. A cheap tax deed still loses money when the exit costs more than the proceeds. Study the resale market first.
In my training, I cover resale, renovation, and rental. Choose based on the property, the market, and your resources. Once you acquire a property through tax deed investing, the future taxes are yours.
Risks investors need to understand
Tax lien investing and tax deed investing can both lose you principal. Enforcement rights under state law are not federal government insurance, and a county-run tax sale doesn’t guarantee a profitable investment.
Tax liens don’t trade like stocks. Plan for uncertain timing on redemptions, and understand transfers and expiration before you commit funds.
When rights are foreclosed, what survives matters. Florida law preserves certain government-held liens in some circumstances. Arizona preserves certain assessments and easements. Never assume a foreclosed property comes free of everything, and budget for future taxes.
Respect property owners throughout. Holding tax liens doesn’t give you the right to enter the property or pressure anyone. Florida limits early demands for payment. Work through the proper county channels.
Tax deeds expose you to title disputes, occupancy problems, and environmental conditions. Paying delinquent taxes doesn’t give you possession, and owning the property changes your responsibilities.
An owner’s bankruptcy or disputed notices can complicate enforcement of tax liens. Whether rights are actually foreclosed depends on the procedure. Have an attorney assess legal issues before the foreclosure process.
Some foreclosed properties produce significant profits. Others cost more than expected. Investigate the investment, taxes, and property yourself. County involvement doesn’t eliminate risk.
Research first, fund within your limit, then monitor redemption or manage the acquired asset.
Frequently asked questions
How profitable is tax lien investing?
Profit depends on your accepted rate, holding period, fees, and enforcement costs. In the hypothetical $1,800 example, 24% for one year produces $432 before costs. Real tax liens deliver different results depending on when the owner redeems, and the advertised maximum doesn’t guarantee your earnings.
For tax deed investing, measure net resale proceeds against every acquisition and carrying cost, including taxes. That’s a different calculation from a redeemed lien, and neither promises fixed income in a changing market.
What are the disadvantages of tax lien investing?
Illiquidity, competitive bidding, strict deadlines, and possible loss. A lien holder needs good records and reserves for fees and taxes. Tax liens on poor collateral are expensive to enforce, and tax deeds bring property condition and possession risks.
Can you buy property in Texas by paying back taxes?
No. Paying someone else’s back taxes doesn’t make the property yours. Texas investors generally acquire the interest offered at the Constable Sale and receive the appropriate deed. Harris County requires immediate payment and describes the former owner’s post-sale redemption rights.
Treat Texas as a redeemable deed market. Review each property’s redemption period, taxes, and title before you buy or sell.
What is the best state to buy tax lien certificates?
No single state is best for every investor. Compare capital requirements, accepted returns, available inventory, and legal procedures. Arizona and Florida are useful starting points because their rules clearly lay out bidding and enforcement for delinquent taxes. Tax deeds need a separate assessment.
Start with education and a researched first purchase
In tax lien investing, new and experienced investors both do better with a process they can repeat. Mine starts with understanding the state and county rules, building a short list, and verifying the property before you pay the taxes. Tax liens and tax deeds reward preparation, not rushed decisions.
Review each investment before you pay. If you might end up owning the property, decide how you’ll sell it before you buy.
Subscribe to Saen Higgins on YouTube for more lessons on tax liens and tax deeds. Click here for your free download with more information.
Education only. Returns are not guaranteed. Consult qualified legal and tax advisers about your circumstances before investing.
