Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000931755-26-000003
Filing Date
2026-03-27
Accepted
2026-03-27 13:31:29
Documents
49
Period of Report
2025-12-31

Document Format Files

Seq Description Document Type Size
1 ANNUAL REPORT PURSUANT TO SECTION 13 AND 15(D) aei21-20251231.htm   iXBRL 10-K 543844
7 EX-31.1 xxiex31-1.htm EX-31.1 7603
8 EX-31.2 xxiex31-2.htm EX-31.2 7970
9 SECTION 1350 CERTIFICATIONS xxiex32.htm EX-32 8612
  Complete submission text file 0000931755-26-000003.txt   2910849

Data Files

Seq Description Document Type Size
2 INLINE XBRL TAXONOMY EXTENSION - SCHEMA aei21-20251231.xsd EX-101.SCH 31659
3 INLINE XBRL TAXONOMY EXTENSION - DEFINITION LINKBASE aei21-20251231_def.xml EX-101.DEF 108423
4 INLINE XBRL TAXONOMY EXTENSION - LABEL LINKBASE aei21-20251231_lab.xml EX-101.LAB 193630
5 INLINE XBRL TAXONOMY EXTENSION - PRESENTATION LINKBASE aei21-20251231_pre.xml EX-101.PRE 119406
6 INLINE XBRL TAXONOMY EXTENSION - CALCULATION LINKBASE DOCUMENT aei21-20251231_cal.xml EX-101.CAL 29226
53 EXTRACTED XBRL INSTANCE DOCUMENT aei21-20251231_htm.xml XML 316667
Mailing Address 30 EAST 7TH ST SUITE 1300 ST PAUL MN 55101
Business Address 30 EAST 7TH ST SUITE 1300 ST PAUL MN 55101 6512277333
AEI INCOME & GROWTH FUND XXI LTD PARTNERSHIP (Filer) CIK: 0000931755 (see all company filings)

EIN.: 411789725 | State of Incorp.: MN | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 033-85076 | Film No.: 26804758
SIC: 6500 Real Estate
(CF Office: 05 Real Estate & Construction)