NUVEEN SELECT TAX FREE INCOME PORTFOLIO
COMPANY
N-2ASR
FORM
2026-06-17
FILING DATE
None
PERIOD END
139
FACTS
SIC None
CIK 0000883618
Taxonomy US GAAP 2026  
SIC None
CIK 0000883618
Taxonomy US GAAP 2026  
Standard Concepts
61
Extended Concepts
0
0%
Extended Concepts
ERROR
for submission type N-2ASR, Offering 1, Rule 457(r), header:wellKnownSeasonedIssuerFlag value "absent" must be true when Rule 457(r) is specified.
ERROR
for submission type N-2ASR, Offering 3, Rule 457(r), header:wellKnownSeasonedIssuerFlag value "absent" must be true when Rule 457(r) is specified.
ERROR
The footnote with id Footnote000044 and text 'The Registrant previously registered 14,000,000 Common Shares in reliance on Rule 457(c) under the S' is not connected to any fact. Please remove the footnote, or link it to a fact.
What are errors?
What are errors?
Indicate problems with an XBRL formatted filing that are sufficient grounds for SEC rejection of the XBRL portion of the filing.
Data Quality Errors
0
What are data quality errors?
What are data quality errors?
Indicate areas that may not meet the standards set by the Data Quality Committee (DQC), and may reveal areas where the XBRL can be improved.
WARNING
1 fact(s) appearing in ix:hidden were eligible for transformation: dei:EntityFileNumber
What are possible issues?
What are possible issues?
Indicate areas of interest as to the quality of an XBRL formatted filing, and in some cases reveal opportunities for improvement of the XBRL filing.