When you decide to buy your first tax lien certificate, one of the earliest choices you will make is the format: do you bid at an in-person county auction, or through an online tax lien auction platform? The answer affects more than convenience. It changes who you are competing against, what yields you can realistically expect, how much time you have for due diligence, and how steep your learning curve will be.
Online vs. In-Person Tax Lien Auctions: Which Should Beginners Start With?
This guide breaks down both formats honestly — how each one works, where each one wins, and which one most beginners should actually start with. If you are still deciding whether tax lien investing is right for you at all, start with our complete guide to tax lien certificates first.
How In-Person Tax Lien Auctions Work
The in-person tax lien auction is the original format. You travel to the county courthouse or a designated venue on the scheduled auction day, register at the door (or in advance), and bid live as each certificate is called.
The atmosphere is part of the experience. An auctioneer or county official calls each property, and registered bidders compete in real time — sometimes by raising a paddle, sometimes by calling out, depending on the county's bidding method. The pace is set by the room: a small county auction might cover a few dozen certificates in a morning, while a larger one can run all day.
In-person auctions still happen across the country, especially in smaller counties and in states that have not fully moved online. Some states run a mix — larger metro counties online, rural counties in person.
The defining feature of in-person auctions is who shows up. Because attendance requires being physically present, the bidder pool is usually smaller and more local. That smaller pool is exactly why in-person auctions often produce higher yields than their online equivalents.
How Online Tax Lien Auctions Work
Online tax lien auctions run on web platforms — most commonly Realauction, Grant Street Group, and GovEase — that let registered investors bid from anywhere. You register on the platform, deposit funds, review the published property list, and place bids (usually through a proxy bidding system that automatically bids on your behalf down to a floor you set).
Online auctions dominate the most popular tax lien states. Florida runs nearly all of its county auctions online, and Arizona has moved heavily in the same direction. For a national investor, online auctions are the only practical way to participate in markets thousands of miles away.
The format is fast and high-volume. A single online auction can process thousands of certificates, with proxy bidding settling most of them automatically. There is no auctioneer pacing the room — the platform processes bids on a schedule.
The cost of all this convenience is competition. Because anyone with a laptop and a funded account can participate, online auctions attract far more bidders, including institutional investors and funds that bid at scale. That competition compresses yields, especially on desirable properties. For the full mechanics of bidding online, see our step-by-step guide to investing in tax liens online.
Online vs. In-Person: Side-by-Side Comparison
Both formats sell the same underlying instrument — a tax lien certificate — but the experience and the economics differ meaningfully.
| Factor | In-Person Auctions | Online Auctions |
|---|---|---|
| Geographic access | Local, or requires travel | Anywhere in the U.S. |
| Bidder competition | Lower (smaller, local pool) | Higher (national plus institutional) |
| Typical yields | Often higher | Often compressed by competition |
| Pace | Slower, live calling | Fast, high volume |
| Due diligence time | Limited (around auction day) | More flexible (lists published early) |
| Cost to participate | Travel plus time off work | None beyond the deposit |
| Bidding method | Live (paddle or call-out) | Proxy bidding (set a floor) |
| Best suited for | Local investors chasing yield | National investors prioritizing access |
The single most important line in that table is competition, because it drives yield. In-person auctions in smaller counties routinely settle at higher interest rates simply because fewer investors are in the room. Online auctions in popular states get bid down hard.
The second most important line is due diligence time. At an in-person auction, you are often researching properties under time pressure on or just before auction day. Online, the property list is typically published well in advance, giving you more time to research each parcel properly — which, for beginners, is a significant advantage.
Which Should Beginners Start With?
For most beginners, the honest answer is online — for three practical reasons.
First, accessibility. You do not need to travel, take time off work, or limit yourself to your home county. You can research and participate in the states with the best beginner infrastructure (Florida, Arizona, Maryland) from your kitchen table.
Second, due diligence time. Online auctions publish property lists in advance, so you can take days to research parcels instead of scrambling on auction morning. For a beginner who has not yet built fast due diligence instincts, this matters enormously.
Third, lower stakes for learning. Online platforms let you participate in smaller increments and use proxy bidding to enforce discipline. You can buy one or two small certificates, watch how the redemption process plays out, and learn the full cycle before committing more capital.
The trade-off you accept by starting online is yield compression. You will win fewer high-rate certificates than you might at a sleepy in-person county auction. But for a beginner, the value of accessibility and due diligence time outweighs the yield you give up — especially because chasing high yields without experience is how beginners end up with bad properties.
There is one exception worth naming: if you happen to live near a county that still runs in-person auctions and has low competition, starting in person can give you access to higher yields than you will find online. If that describes your situation, it is worth considering — but go in having done your homework first.
When In-Person Auctions Still Win
In-person auctions are not obsolete. They retain real advantages for the right investor.
Lower competition. Smaller and rural county auctions attract fewer bidders, which means certificates often settle closer to the statutory maximum interest rate. An investor willing to travel to a less popular county can find yields that simply do not exist in Florida's online auctions.
Less institutional presence. The funds and large-scale bidders that crowd online auctions usually do not bother with small in-person county sales. That leaves more room for individual investors.
Relationship building. Regular attendance at a county auction builds familiarity with the county staff, the local market, and the recurring bidders. Over time, that local knowledge becomes an edge.
Some states and counties simply have not moved online. If the market you want to invest in runs in-person auctions, that is your only option — and learning to operate in that format is non-negotiable.
Combining Both Formats (and Where Live Education Fits)
Many experienced tax lien investors do not choose one format permanently. They start online for accessibility, then add specific in-person county auctions where the yields justify the travel. The two formats become complementary tools rather than an either-or decision.
The same logic applies to how you learn. Some investors absorb material best through self-paced online study they can revisit on their own schedule. UTL's online tax lien training is built for exactly that — a structured curriculum covering both auction formats, state-by-state rules, and due diligence frameworks.
Others learn best in a room with a live instructor and other investors working through real examples together. Our partner brand Tax Lien Wealth Builders runs in-person tax lien investing events that cover the same core material in a workshop format. The right choice mirrors the auction question itself: it comes down to how you learn and operate best.
Frequently Asked Questions
Are online tax lien auctions safe?
Yes. Online tax lien auctions run on established platforms used by county governments, and the certificates you buy are the same legal instruments you would buy in person. The safety question is really about due diligence — the platform is secure, but it is still your responsibility to research the underlying property before bidding. The risk in tax lien investing comes from bad properties, not from the auction format.
Do in-person auctions have better deals?
Often, yes — in the sense of higher yields. In-person auctions in smaller counties attract fewer bidders, so certificates frequently settle at higher interest rates than the same certificates would online. The trade-off is access: you have to be there in person, which limits how many auctions you can attend and which markets you can reach.
Can I attend a tax lien auction in another state?
For online auctions, yes — most platforms accept registrations nationwide, and you can bid in any state that allows non-resident investors. For in-person auctions, you can physically travel to and bid at an out-of-state county auction, though some states require non-residents to register as a foreign entity or appoint a local registered agent. Check the specific county's rules before traveling.
Which states still use in-person tax lien auctions?
Many states use a mix, with larger metro counties moving online and smaller rural counties staying in person. The specifics change over time and vary county by county, so the reliable approach is to check the tax collector or treasurer website for the specific county you are targeting rather than relying on a state-wide assumption.
Final Thoughts and Next Steps
The format debate has a clear default for beginners: start online for the accessibility and due diligence time, then add in-person county auctions later if the yields justify the travel. Neither format is inherently better — they serve different investors and different stages.
Whichever way you start, the framework matters more than the format. Explore UTL's self-paced tax lien investing courses to learn both formats properly, or talk to a tax lien investing coach about which approach fits your situation.
