16-character property ID calculated from the block-lot property identifier (block_lot) by the Regional Data Center. For records where it is not possible to determine the property ID from the block-lot identifier, the property ID field is empty. (Note that a property does not have to be a parcel of land. Some liens are on mobile homes.)

The block-lot property identifier for the property on which the lien has been placed. Original format recorded by Allegheny County's Department of Court Records

The date where the lien (or satisfaction) was originally filed. In cases where the existence of a satisfaction is inferred from a combined lien/satisfaction record, the filing date of the satisfaction is unknown and the filing date field is empty. For pre-1995 liens, this is the date that the lien was digitally filed.

The year for which the unpaid taxes were not paid.

The identifier for the Delinquent Tax Docket (DTD) that contains all the information about the history of the lien. This can be used to look up a given lien in the Department of Court Records system (see http://dcr.alleghenycounty.us).

This indicates which kinds of liens this lien is. (Types include [but are not limited to] "School District Tax Lien", "Allegheny County Tax Lien", "Pgh Water & Sewer Tax Lien", and "Township & School Tax Lien". The last is an example of multiple liens being combined under a single Delinquent Tax Docket. This practice has been recently discontinued.)

The name of the city, township, or borough where the property is located.

If the property is in the City of Pittsburgh, the City of Clariton, the City of Duquesne, or the City of McKeesport, this field gives the ward that the property is in.

Tax lien dockets consist of a series of entries (beginning with "Tax Lien" and sometimes ending with an entry indicating how the lien was terminated (e.g., "Exoneration" or "Satisfaction")). This represents the last docket entry as of the date that the data was pulled (some date between 2013 and the present), so in many cases more entries have been made in the intervening time.

The total amount in dollars of the original lien(s).

Where this data has been made available, the entity to which the lien has been assigned is given. For liens filed after 2013, this information is generally unavailable due to the typical delay between when the lien is filed and when it is assigned.

This field is only present in the "Tax Liens with Current Status" table. This field indicates whether any data in this repository shows that the lien has been satisfied, exonerated, or struck from the record.