Irwin Schiff
E516462
Irwin Schiff was an American tax protester and author known for promoting the false claim that most U.S. citizens are not legally required to pay federal income tax, which led to multiple convictions and prison sentences.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Irwin Schiff canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5382888 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Irwin Schiff Context triple: [Irwin, hasNotableBearer, Irwin Schiff]
-
A.
Greg Shapiro
Greg Shapiro is an American film producer best known for his Academy Award-winning work on "The Hurt Locker" and other notable independent and studio films.
-
B.
Michael Markowitz
Michael Markowitz is an American comedy writer best known for co-writing the hit film "Horrible Bosses."
-
C.
Michael Rotenberg
Michael Rotenberg is a television producer and manager best known for his work on popular comedy series including It's Always Sunny in Philadelphia.
-
D.
Gus Schiff
Gus Schiff is the son of American actor Richard Schiff, known for his role as Toby Ziegler on the television series "The West Wing."
-
E.
Peter Seligmann
Peter Seligmann is an American environmentalist and business leader best known for co-founding and leading the global conservation organization Conservation International.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Irwin Schiff Target entity description: Irwin Schiff was an American tax protester and author known for promoting the false claim that most U.S. citizens are not legally required to pay federal income tax, which led to multiple convictions and prison sentences.
-
A.
Greg Shapiro
Greg Shapiro is an American film producer best known for his Academy Award-winning work on "The Hurt Locker" and other notable independent and studio films.
-
B.
Michael Markowitz
Michael Markowitz is an American comedy writer best known for co-writing the hit film "Horrible Bosses."
-
C.
Michael Rotenberg
Michael Rotenberg is a television producer and manager best known for his work on popular comedy series including It's Always Sunny in Philadelphia.
-
D.
Gus Schiff
Gus Schiff is the son of American actor Richard Schiff, known for his role as Toby Ziegler on the television series "The West Wing."
-
E.
Peter Seligmann
Peter Seligmann is an American environmentalist and business leader best known for co-founding and leading the global conservation organization Conservation International.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf |
human
ⓘ
tax protester ⓘ |
| advocatedAction | refusal to pay federal income tax ⓘ |
| areaOfActivity | United States NERFINISHED ⓘ |
| causeOfImprisonment | tax crimes ⓘ |
| citizenship | American ⓘ |
| conflictWith | United States tax law ⓘ |
| convictedInJurisdiction | United States federal courts NERFINISHED ⓘ |
| convictedOf |
aiding and assisting in the preparation of false tax returns
ⓘ
filing false tax returns ⓘ tax evasion ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| describedAs | prominent figure in the U.S. tax protester movement ⓘ |
| ideology | anti‑tax activism ⓘ |
| lawEnforcementAgencyInvolved |
Internal Revenue Service
NERFINISHED
ⓘ
United States Department of Justice NERFINISHED ⓘ |
| legalCharacterizationOfArguments | frivolous tax arguments ⓘ |
| legalFinding | obligations to pay federal income tax apply to U.S. citizens contrary to his claims ⓘ |
| legalOutcome | imprisonment for tax‑related offenses ⓘ |
| legalStatusOfClaims |
claims about non‑liability for federal income tax were false
ⓘ
tax theories were rejected by U.S. courts ⓘ |
| movement | tax protester movement in the United States ⓘ |
| notableFor |
claiming most U.S. citizens are not legally required to pay federal income tax
ⓘ
promoting tax protester arguments against the federal income tax ⓘ |
| occupation |
author
ⓘ
tax protester ⓘ |
| penalty |
multiple prison sentences
ⓘ
orders to pay restitution ⓘ |
| positionOnTaxation | denied legal obligation of most citizens to pay federal income tax ⓘ |
| subjectOf |
IRS warnings about tax scams
ⓘ
U.S. federal court decisions rejecting tax protester claims ⓘ |
| viewedByAuthoritiesAs | promoter of illegal tax schemes ⓘ |
| wroteAbout |
federal income tax
ⓘ
tax protester theories ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Irwin Schiff Description of subject: Irwin Schiff was an American tax protester and author known for promoting the false claim that most U.S. citizens are not legally required to pay federal income tax, which led to multiple convictions and prison sentences.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.