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401(k)

type of retirement/pension plan in the United States
Thing general Q1206798
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401(k)

Summary

401(k) ranks in the top 1% of general entities by monthly Wikipedia readership (2,595 views/month).[1]

Key Facts

  • 401(k) is in the country of United States[2].
  • Internal Revenue Code is named after 401(k)[3].
  • 401(k) is a type of retirement plans in the United States[4].
  • 401(k) is a type of defined contribution plan[5].
  • 401(k) is a type of pension fund[6].
  • 1978 marks the founding of 401(k)[7].
  • 401(k)'s official website is recorded as https://www.irs.gov/retirement-plans/401k-plans[8].
  • 401(k)'s different from is recorded as Thrift Savings Plan[9].

Body

Definition and Type

Recorded subclass of include retirement plans in the United States[4], defined contribution plan[5], and pension fund[6].

Origins

Internal Revenue Code is named after 401(k)[3]. 1978 marks the founding of 401(k)[7].

Why It Matters

401(k) ranks in the top 1% of general entities by monthly Wikipedia readership (2,595 views/month).[1] 401(k) has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[10] 401(k) is known by 17 alternative names across languages and contexts.[11]

Related Entities

United States

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [10] ↑ . Wikidata sitelinks. wikidata.org.
  3. [11] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). 401(k). Retrieved April 10, 2026, from https://4ort.xyz/entity/401-k
MLA “401(k).” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/401-k.
BibTeX @misc{4ortxyz_401-k_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{401(k)}}, year = {2026}, url = {https://4ort.xyz/entity/401-k}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 401(k) — https://4ort.xyz/entity/401-k (retrieved 2026-04-10)

Canonical URL: https://4ort.xyz/entity/401-k · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 1d ago · Twofivesixbot bot · 2026-05-27 view diff on Wikidata ↗
    Country → —
    Inception → +1978-00-00T00:00:00Z
    Encyclopædia britannica online id → money/401k
    Subclass of → —
    + 9 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|2 */ [[Property:P8189]]: 987007546299705171, mv to monolingual text names on J9U statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.