My 3 Biggest Tax Lien Mistakes (And What They Cost Me)

Mistake 1: Ignoring the Title Search

My third certificate purchase taught me a lesson I will never forget. I bought a lien on a property in a county I had not researched deeply. The minimum bid was $3,200, the appraised value was $180,000, and I thought I had found a goldmine.

What I missed was a senior tax lien from a different taxing jurisdiction. In Texas, different entities can levy separate taxes. School districts, city governments, water authorities, and hospital districts can all file liens. I had checked the county tax records but not the city or school district records.

When the owner redeemed, the senior lien was paid first from the redemption proceeds. I received my principal but only partial interest. The mistake cost me about $800 in lost interest. It also taught me that the auction list is not the full picture. You need to check all taxing jurisdictions that have a claim on the property.

Mistake 2: Chasing High Appraised Values

Early on, I thought the best certificates were the ones with the biggest gap between the minimum bid and the appraised value. A $200,000 property with a $3,000 minimum bid looked like a steal. I bought several of these in a county I will not name.

What I learned is that high appraised values in certain counties do not always mean high property quality. Some counties appraise properties at values far above what they would sell for in the open market. The gap between bid and value can be misleading.

More importantly, I learned that certificates on high-value properties in low-demand areas have lower redemption rates. Owners in those areas are more likely to walk away from the property entirely, which sounds good until you realize you now own a property in an area where nobody wants to buy. Foreclosing on a $200,000 property that would sell for $60,000 is not a win.

Now I focus on properties in the $50,000 to $150,000 range in counties with active real estate markets. The redemption rates are higher, and if I do end up owning the property, I have a better chance of selling it.

Mistake 3: Not Tracking Deadlines

This is the embarrassing one. I owned a certificate that had been active for 14 months. I knew the deadline was coming but I did not have it written down anywhere reliable. I told myself I would check it next month.

The owner redeemed on month 16. I did not notice for three weeks. By the time I contacted the county, the payment had been processed and I had missed three weeks of interest on a $4,500 certificate. It cost me about $58. Not a lot of money, but it was money I left on the table because I was disorganized.

That is the mistake that motivated me to build a proper tracking system. If you are buying more than five certificates, you need a system that tells you what is happening without you having to remember. Spreadsheets work. Calendars work. LienSimple works. But nothing works if you do not use it.

I now check my portfolio every Sunday morning. It takes five minutes. I look at which certificates are approaching their deadlines, which ones have redeemed, and whether my expected interest matches the county records. Five minutes a week saves me from leaving money on the table.

The Real Cost of Mistakes

Add up my three mistakes. $800 from the senior lien, plus a certificate that sat for 18 months in a slow market, plus $58 in missed interest. Total direct cost: about $858. Plus the opportunity cost of having capital tied up in underperforming certificates.

But here is what I tell new investors. $858 in mistakes on a $40,000 portfolio over two years is a 2.1% drag. That is not nothing, but it is also not catastrophic. And every mistake taught me something that made my next purchase better.

If you buy your first certificate today, you will make mistakes. Accept that. The goal is not to avoid every mistake. The goal is to keep mistakes small, learn from them, and build systems that prevent the same mistake twice.

Marcus Field Notes: Systems Beat Discipline

I used to think successful investing was about discipline. Make good choices consistently and you win. Now I think it is about systems. Build systems that make good choices easy and bad choices hard.

Tracking is a system. Research is a system. County selection is a system. When you build a system, you do not have to rely on willpower or memory. The system runs in the background and catches you when you forget.

My system is simple. I research counties during the first week of the month. I buy during the second week. I track every purchase immediately. I review every Sunday. That rhythm took me two years to develop, but it is the reason I have not made a significant mistake since my first year.

Start your system today. Even if it is just a spreadsheet with columns for county, amount, rate, and deadline. That spreadsheet is worth more than any investing advice I could give you.