Paying the Delinquent Tax and Collecting Statutory Interest

A Government Selling Its Receivable

Property taxes fund local services with a budget set months in advance. A county can't simply wait for a delinquent property owner to finally pay. It needs the cash now this fiscal year not when levies finally come to a resolution

Many jurisdictions sell the problem rather than pursue it. An investor pays the delinquent taxes owed and in return receives a tax lien certificateThe rate the priority the redemption period it's all written into state law before you come in to bid

The municipality gets its revenue immediately. The collection headache is shifted to an individual. And the delinquent homeowner now owes an investor instead of the county with a ticking clock that the homeowner may not even know exists

Two Different Systems

Jurisdictions use one of two systems and mixing them is the quickest way to misprice what you're buying

In a lien state the vast majority of certificates are redeemed. The owner eventually pays the back taxes plus interest the lien is released and the investor never owns the property. This entire article is about that lien case where you are taking out an account receivable not a house

In a deed state the investor bids on the property directly at auction. That is an analysis of the property: appraisal condition marketability. A skill unlike anything discussed here

The Return Is Set by Statute, Until the Auction Isn't

The interest rate on a tax lien is set by law not negotiated between buyer and seller like the yield on a bond or a mortgage rate. Some states publish maximum legal rates that are high on paper reaching the mid-teens or higher annually. I want to be careful here: I'm not going to claim what any specific state's rate is because these figures vary by jurisdiction and change over time and getting it wrong in a print publication is exactly the kind of mistake that looks sloppy in an interview. Trythe general rate as a cap set by the legislature not as a market equilibrium price

That limit is exactly why the auction format is so important. Because the rate is fixed and on paper generous the competition between bidders has to be expressed in some other way. Three formats appear repeatedly. Offer the interest rate lower It allows bidders to compete by accepting a performance lower than the legal maximum up to zero if they strongly desire the certificate. Premium offer it keeps the statutory rate fixed but makes bidders pay above the face amount of the lien to win it reducing the return on total capital deployed even though the quoted rate never moves. Random selection among bidders willing to accept the full legal rate it is the closest to the advertised figure and it tends to survive only in less competitive counties where institutional money has not yet appeared

My reading is that these three formats are just three different valves for the same pressure. Wherever a legal fixed yield meets an open auction something has to give. It's never the statute

A Worked Example: From Statutory Rate to Realized Yield

Let me put illustrative numbers on this because the difference between the advertised and realized rate is the whole story and it's easy to hand-point rather than calculate

Suppose merely by way of illustration and not tied to any actual statute of any specific state that a county advertises a maximum legal rate of 18 percent per year on tax lien certificates. Bidders compete by lowering the rate and I win a certificate on a $4,000 delinquent tax bill by bidding up to 9 percent half the legal maximum. This part is easy so far. I have paid $4,000 and am owed 9 percent.cent annual interest until the owner redeems them

Here's the detail that trips people up. Some statutes don't prorate that interest from day to day. Instead they pay a fixed increment for each repayment period the owner allows to begin often six months regardless of how much of that period has actually passed. I'm clearly pointing out that this is a feature of some statutes and not others and I'm illustrating a mechanism rather than describing any state law. Where it exists however it changes the math entirely

Run the numbers three ways on that same $4,000 certificate at an offer rate of 9 percent paid in increments of 4.5 percent per six-month period initiated

Redeemed in month 3 within the first period: I collect an increase 4.5 percent of $4,000 which is $180. I held the capital for a quarter of a year. Annualized 180 divided by 4,000 is 4.5 percent and multiplying it by four to calculate it annually gives 18 percent double the 9 percent rate I actually offered

Redeemed in month 7 one month into the second period: I now collect two increments 9 percent of $4,000 or $360. I held the principal for just over seven months. Annualized 360 divided by 4,000 is 9 percent and dividing that by seven-twelfths of a year comes out to about 15.4 percent still well above my offer rate

Redeemed in month 12 right at the end of the second period: I collect the same two increments $360 but now for a full year. The annualized figure returns to exactly 9 percent the figure I actually bid

Premium bids create the opposite distortion. Imagine a different jurisdiction one in which the auction does not allow the interest rate to be lowered at all. Instead bidders compete by paying a premium above the face amount of $4,000 and the legal rate of 18 percent is paid in full prorated normally with no minimum period

Let's say I win by offering a $500 bonus so my total cash outlay is $4,500. Under most of these statutes the premium is not returned to me when the lien is discharged. It is simply the cost of winning

If the owner repays after two years near the outer edge of an illustrative repayment window the interest reaches $4,000 times 18 percent times two years which equals $1,440. I get back my $4,000 principal plus that $1,440 in interest a total of $5,440 versus the $4,500 I put in.The profit is $940 on $4,500 over two years which is 20.9 percent overall or about 10.4 percent a year. Well below 18 percent simply because of the premium

Now redeem that same certificate after two months. The interest is $4,000 times 18 percent times one-sixth of a year which is equal to $120. I receive $4,120 of my $4,500 outlay. This is not simply a lower return. This is an absolute loss of $380 because I paid a premium that two months of interest cannot cover. A quick repayment the result that everyoneThey assume it is safe it is the worst outcome for a premium bidder

Two auction formats two completely different relationships between how quickly an owner repays and how well an investor does. That asymmetry is the real subject of this article. The legal rate is a maximum limit set by the legislator. What you earn depends on what valve your county uses to allow bidders to compete and then on a redemption date that you don't control and can't predict

The Security Position Is Unusually Strong

What makes the asset really interesting despite all that yield compression is the priority. Property tax liens generally remain super priority placing itself ahead of mortgages and almost everything else registered on the plot

Therefore a mortgage lender has a real incentive to pay delinquent taxes on properties it has lent and servicers routinely do so. That is one reason repayment rates are so high. The lender is protecting a much larger claim by quietly satisfying a smaller and larger claim before it can become a foreclosure issue

That same priority is what makes the eventual remedy significant rather than theoretical. If no one redeems within the legal period the certificate holder can foreclose and that foreclosure can eliminate subordinate interests including mortgages. A $4,000 lien is not really a $4,000 bet. It is an option on the entire property valued as a small debt instrument

Case Study: Tyler v. Hennepin County

The clearest lesson about the real value of that tail option and where the law has drawn a hard line around it comes from Tyler v. Hennepin County decided by the Supreme Court in 2023

Geraldine Tyler an elderly woman from Hennepin County Minnesota fell behind on the property taxes on her condominium. The underlying tax debt was small on the order of a couple thousand dollars but with interest penalties and collection costs added year after year it grew to something like $15,000 when the county moved to seize the property. I am deliberately rounding these figures. I do not have the record before me and would rather point it out than claim false accuracy

Hennepin County took the condo through tax forfeiture an additional mechanism to a deed-in-lieu of private foreclosure and then sold it for approximately $40,000. Under state law at the time the county kept the entire sale price both the approximately $15,000 it was owed and the remaining surplus of about $25,000 and returned nothing to Tyler. The Supreme Court ruled unanimously that upholding thesurplus over the actual debt was an uncompensated taking under the Fifth Amendment

I'm using a government forfeiture case instead of a private foreclosure because the two are legally distinct but the underlying question is identical: When the debt is small and the collateral is a house who is entitled to the difference? Before Tyler the answer in several states was who would take possession of the property.is rescued the same mathematics only now with a constitutional floor beneath it

Where It Goes Wrong

The obvious danger is that a small tax debt could result in the loss of valuable property and that has produced real and documented abuse not just a theoretical risk

Investigators and journalists have found cases in which liens of a few hundred dollars resulted in foreclosures against elderly or vulnerable homeowners who never understood the notices sent to them in the mail sometimes because the notices were legally sufficient but virtually incomprehensible. Fees and costs piled up on the lien balance until the bailout became unaffordable even for homeowners who wanted to pay

Bid rigging has also been reported. Investors agreed in advance not to bid against each other in tax lien auctions which nullifies the entire low bid mechanism and preserves artificially high returns at the direct expense of delinquent owners who end up paying the full legal rate that no one had to compete for

The Tyler ruling described above is the most significant response to the worst version of this pattern: complete loss of home equity over a small debt. It reformed statutes in several states and remains the most important consumer protection here although it addressed the government forfeiture side of the problem more directly than foreclosure of private liens and states have implemented it with varying degrees of generosity

Where This Breaks

I've spent this entire article treating the bid rate as something worth analyzing so let me make the case for the other side. There is a real case where the entire performance framework above is almost a fiction for an average retail bidder

Start with institutional bidding. In competitive countries big funds now reduce rates or raise premiums much more aggressively than an individual would because they are optimizing the deployment of large amounts of capital with a small constant spread over their own cost of funds not overall performance. Once that amount of money appears in one county the realized rate for everyone else is compressed toward that amount. A retail bidder is no longer competing against the statute.lower and a greater appetite for reduced returns and that fund usually wins

Second priority and the foreclosure option are worth exactly nothing if the parcel under the lien is worth nothing. A landlocked lot a structure that can no longer be economically repaired a parcel that no one would want even for free - all of this shows up on tax sale lists. Make a blind offer without inspecting the package and the security you thought you had is a claim against the dirt that no one wants regardless of what the statute says about priority

Third and this is the one I find really difficult to understand: the entire example above assumes that you know when redemption occurs. You don't. The timing of redemption is set by the owner's finances and decisions that you cannot observe so any expected return calculated before the auction is an estimate with a wide band of error around it largely unknowable. I can calculate the annualized return after the fact for a single certificate with complete precision exactly as I did above. I cannot calculate it in advance for a portfolio withtrue confidence because the distribution of repayment dates across hundreds of parcels is not something a bidder can see before bidding

Put those three together and the honest version of the argument is not a high statutory yield. It's closer to a small uncertain spread on its own cost of capital guaranteed by guarantees of varying and sometimes negative quality with a low probability and high return if a package is never redeemed. That's a real strategy. It's just a lot less exciting than the number printed in the statute

What an Investor Actually Faces

The practical friction here is more mundane than any headline suggests

due diligence It has to happen parcel by parcel because a lien on a contaminated site a landlocked lot or a structure with no economic value is a lien that may never be worth executing. Investors who buy listings blind end up owning rights to worthless land priority or not

Subsequent taxes Typically the certificate holder must pay it to protect the position as the parcel continues to accumulate new tax bills each year the previous one remains unresolved. This is ongoing capital not a one-time purchase

foreclosure It's its own legal procedure with its own costs and deadlines and notice requirements that are strict for the same reason they are strict in a quiet title action: courts don't want to extinguish an owner's rights over a technicality no one told them about

The timing of the exchange is unpredictable so even a certificate that will clearly be redeemed will eventually leave you uncertain when the check arrives. The worked example above should make it clear that eventually it's not a detail you can ignore

How I Actually Think About Tax Lien Yields

My honest reaction when I first read about investing in tax levies was that it sounded almost too good: a double-digit return super priority and guaranteed by the government. The way I use this now is quite the opposite. I consider the statutory rate to be the least informative number on the page a limit that almost no one earns

If I were studying a specific county's tax sale instead of bidding on one I would look first at the auction results not the statute. What did the winning bidders actually get on average in the last cycle? A legal maximum of 18 percent in a county where the average winning bid was 2 percent indicates that the real market is a crowded institutional tight-margin business regardless of what the legislature prints. The same 18 percent ceiling in a county wherecertificates reached the maximum rate or close to it says the opposite: capital has not yet found this corner of the market

So I'd like to know the redemption statistics not just the rate. What fraction of certificates are redeemed within the first period compared to redemption up to the legal limit? Given how sensitive the annualized figure is to the exact time the redemption occurs the form of that distribution matters more than the overall rate

The most transferable lesson the one worth carrying over to other corners of finance is that a quoted rate set by anyone other than a real market is never the rate you actually get once real capital is allowed to compete for it. Cap rates behave this way. Credit spreads on a new bond issue behave this way. A statutory tax levy rate is simply the clearest version of the pattern because the ceiling is written into the law where it isYou can read it and you can see auction after auction exactly how short the market is. None of this is a recommendation to go shopping for tax liens. It's closer to a case study on what happens when a fixed price meets an open offer

The Bottom Line

Investment in tax liens exists because a municipality wants its tax revenue now and is willing to sell the collection problem to get it backed by a claim that exceeds the mortgage. The rate a legislature sets is a ceiling not a promise and bid auctions premium bids and institutional competition exist to erode the distance between that ceiling and what an investor actually collects. The timing of repayment does the rest sometimes inflating the annualized return beyond the bid rate;sometimes as with a premium paid just before a quick payback turning a supposedly secure fixed return into a total loss. The rare end result a lien that is never redeemed and ends in foreclosure is both the largest possible reward and after Tyler v.Hennepin County is now limited by a constitutional floor under owner's equity. My conclusion is to read the auction results before the statute because the printed rate was never the figure that really mattered