How do you get a tax delinquent property list?

How the list is built

The source of record is the county treasurer or tax collector. Each year the office bills every parcel, and parcels that miss the due date move onto a delinquency roll. The roll carries the parcel number, the owner of record, the tax years unpaid and the amount due with interest and penalties.

Counties then act on that roll on a calendar set by state law. The Cook County Treasurer, for example, offers delinquent taxes at its annual sale as "the full delinquent tax amount due, plus interest and penalties," and says it expects the next sale in December 2026. It also posts a list of properties with delinquent tax year 2023 taxes.

Three different lists come out of this one record:

• The delinquency roll. Every parcel behind on tax. This is the largest list and the earliest signal.
• The sale or auction list. Parcels the county has advertised for a tax sale on a stated date. This is a short list and it shrinks as owners pay.
• The post-sale list. Parcels where a lien was sold or a deed was issued, now inside a redemption window.

A usable lead list starts with the roll, matches each parcel to the assessor record for property type and value, and standardizes the owner mailing address. See the absentee owner list page for how that matching works.

Lien states and deed states

States split into two models. In a lien state, the county sells the tax debt as a lien or certificate, and the owner keeps title until a redemption period ends. In a deed state, the county sells the property itself at auction after the delinquency. Some states use a hybrid. Check your state statute before you act on any list.

State	Model	What the statute says	Source
Florida	Lien (tax certificate)	The collector advertises and sells certificates on or before June 1 or the 60th day after delinquency, whichever is later. A holder may apply for a tax deed 2 years after April 1 of the year the certificate was issued. The owner may redeem any time before a tax deed is issued.	Fla. Stat. 197.402, 197.502, 197.472
Arizona	Lien	The county treasurer secures unpaid taxes by selling the tax liens and foreclosing the right to redeem.	A.R.S. 42-18101
Texas	Deed (auction)	The officer sells the property and prepares a deed to the purchaser. In-person sales run on the first Tuesday of a month. The owner may redeem within 180 days after the deed is filed for record, or within 2 years for homestead, agricultural and mineral property sold to a buyer other than a taxing unit.	Tex. Tax Code 34.01, 34.21
Illinois (Cook County)	Annual sale of delinquent taxes	Delinquent taxes are offered at an annual sale. Buyers register and post collateral or a bond.	Cook County Treasurer

This table covers four jurisdictions. It does not cover all 50 states, and rates, periods and deadlines change by statute. Confirm the current rule with the county before you bid or mail.

Federal tax liens are a separate signal

A county tax delinquent list shows unpaid property tax owed to the county. A federal tax lien is a different debt, owed to the IRS. The IRS describes the Notice of Federal Tax Lien as a public document that alerts creditors to the government's legal claim against property.

Federal law sets where the notice goes. For real property, 26 U.S.C. 6323(f) says the notice is filed in the office the state designates for the county where the property sits. If the state has not designated one, the filing goes to the clerk of the U.S. district court for that judicial district.

The IRS says it releases a lien within 30 days after the debt is paid. It also describes withdrawal routes that remove the public notice while the liability remains. A lien list therefore needs a release check, the same way a county roll needs a paid-off check.

What a record contains and the filters

County rolls are thin. A vendor comparison dated 04/08/2026 says county portals typically give the parcel number, owner name and amount owed. An investor guide dated 01/04/2026 adds property address and years delinquent for county lists, and says paid lists add the owner mailing address, phone numbers, property characteristics and estimated equity.

Field	From the county roll	Added by matching
Parcel number	Yes
Owner of record	Yes
Property address	Yes
Amount owed	Yes
Tax years unpaid	Often
Owner mailing address	Sometimes	Assessor record
Property type, year built, last sale		Assessor and recorder records
Estimated value and equity		Value model plus recorded mortgages
Phone and email		Consumer file, carrier line-type data
Roll date and sale date	Varies

Filters that matter

A bare roll includes rental towers, vacant lots and government parcels. Filters turn it into a list you can work.

Filter	Why it matters	Common setting
Years delinquent	One year is often a timing lapse; several years signals hardship or abandonment	1 to 3 years is the window the 01/04/2026 guide calls best; 5 or more can mean serious issues
Amount owed	Small balances get paid; large balances against low value are not worth the deal	Compare to estimated value
Owner-occupied	Occupants respond differently than absentee owners	Split the list in two
Equity	Equity above the amount owed leaves room for a seller	Estimated value minus mortgages minus tax owed
Sale date	Sets urgency and the redemption clock	Keep parcels with a date ahead
Property type	Single family and small multifamily are easiest to resell	Drop vacant land and commercial unless you buy those

Stack signals when you can. See the all motivated-seller lists, the vacant property list and high equity homeowner list pages.

What to check before you pay

1. Roll date. Ask when the roll was pulled. A list pulled before the last payment deadline can carry many parcels that have since paid.
2. Paid-off parcels. Ask whether the vendor removes parcels that paid. If not, you mail to people who already cured the debt.
3. Redemption status. Parcels already sold are in a redemption window. Florida lets the owner redeem any time before a tax deed issues. Texas gives 180 days or 2 years depending on property type and buyer.
4. Spot check. Pull 25 records in your own county and look up three on the treasurer's site. Owner names and amounts should match.
5. Duplicates. Ask whether the list is deduplicated by owner.

Price benchmarks

All figures below are published ranges from third parties, not quotes. Counties set their own fees.

Source	Published range	Note
County list, per parcel	$0.01 to $1.50; $0.25 is the most common	Investor blog, undated
County list, full file	$100 to $500 typical	Same blog
County bulk data fee	Roughly $25 to $100	01/04/2026 guide
Third-party list, per record	$0.05 to $0.15	01/04/2026 guide, vendor-reported
County file marketplace	From $27 raw or $39 enriched per county; $79 per month subscription	04/08/2026 vendor page, vendor-reported

Worked example (illustrative parcel count): a county with 4,000 delinquent parcels at the most common $0.25 per parcel costs 4,000 x $0.25 = $1,000. The same file at the low end of the third-party range, $0.05 per record, costs 4,000 x $0.05 = $200. The county file is raw. The third-party file adds mailing address and equity, so compare like for like.

Who uses it, and the rules

• Investors and wholesalers. Mail the owners before the sale date, offering a quick purchase. They filter for equity above the amount owed.
• Tax lien and tax deed buyers. Use the sale list to pick parcels to bid on. They read the statute for each state, because the redemption period sets their return and their risk.
• Agents. Work the owner-occupied subset for listing conversations with owners who need to sell before a sale.
• Tax resolution firms. Use federal lien filings, not the county roll, to find people with IRS debt.

For mail design, see direct mail prospecting. For owners already in court, see the pre-foreclosure list. For heirs of deceased owners behind on tax, see probate leads.

Compliance notes

Treat a tax-delinquent owner as a person under financial stress. Mail is the lowest-risk channel. If you call or text, scrub against the Do Not Call Registry and your state list first. Do not describe yourself as the county or imply an affiliation.

Next step

For the absentee subset of any county, see the absentee owner counts by state. Send your target counties to get counts to see how many parcels match your filters.

Questions people ask

Q01Is a tax delinquent list public record?

The underlying roll is. A county treasurer or tax collector keeps unpaid tax by parcel, and most counties publish it or release it on request, sometimes for a fee. The combined list with phones and equity is a product built on top of that record.

Q02What is the difference between a delinquent list and a tax sale list?

A delinquent list shows every parcel behind on tax. A tax sale list shows only the parcels the county has advertised for sale or auction on a set date. Parcels paid before the sale drop off the sale list, so it is shorter and changes up to the sale date.

Q03Does a federal tax lien appear on the county tax delinquent list?

No. A federal tax lien is the government's legal claim against a taxpayer's property for unpaid federal tax, made public through a filed notice. It sits in a different record from the county property tax roll, so you need a separate source for it.

Q04How often does a tax delinquent list go stale?

Quickly. Owners pay, sales run, and the roll changes after each deadline. A list pulled before a sale date can list parcels that were redeemed or sold weeks later. Ask for the roll date and re-check against the county before mailing.

Q05Can I contact owners on a tax delinquent list?

Yes, with limits. Mail is the safest channel. Calls and texts fall under federal and state telemarketing rules. Scrub phones against the Do Not Call Registry first.

Sources

1. 26 U.S.C. 6323(f), place for filing notice of a federal tax lien (Cornell LII)law.cornell.edu
2. IRS: Understanding a federal tax lienirs.gov
3. Texas Tax Code 34.21, right of redemption (Texas Legislature)statutes.capitol.texas.gov
4. Texas Tax Code 34.01, sale of property (Texas Legislature)statutes.capitol.texas.gov
5. Texas Tax Code 34.21 text (secondary copy)texas.public.law
6. Florida Statutes 197.402, advertisement and sale of tax certificatesflsenate.gov
7. Florida Statutes 197.502, application for tax deedflsenate.gov
8. Florida Statutes 197.472, redemption of tax certificatesflsenate.gov
9. Arizona Revised Statutes 42-18101, sale of tax liensazleg.gov
10. Cook County Treasurer, tax sale informationcookcountytreasurer.com
11. Investor guide to county delinquent tax list pricing (undated, published ranges)retipster.com
12. Tax delinquent property list guide, dated 01/04/2026 (vendor-reported prices)remaildirect.com
13. Delinquent list tools by county, dated 04/08/2026 (vendor-reported prices)liensuite.com