Sixteenth Amendment 1913 Income Tax Ratification Origin

Bounded offline reference: The Sixteenth Amendment was ratified in 1913 and addressed federal income taxation without apportionment among states. Source: US Constitution, AmendmentXVI; National Archives. Not the first-ever US income tax or authority to infer all receipts are taxable under every present rule. Supported topic keys: summary, reference, limitations. No complete external corpus or live policy implied.

Description

The Sixteenth Amendment was ratified in 1913 and addressed federal income taxation without state apportionment.

The Sixteenth Amendment was ratified in 1913 and addressed federal income taxation without state apportionment.^{[1, 2]}

This reference places that change apart from earlier federal income-tax measures.

When to use Sixteenth Amendment 1913 Income Tax Ratification Origin

Use this tool when you need to read one of the supported offline reference entries. Establish jurisdiction, tax year, applicable authority, and eligible amounts or evidence before entering values.

How to use Sixteenth Amendment 1913 Income Tax Ratification Origin and understand its results

Establish jurisdiction, tax year, applicable authority, and eligible amounts or evidence before entering values.
Enter topic, following the field table and rules below, then run the tool.
Read result. Use the output meanings below to interpret units, signs, flags, and any nested result fields.
Correct reported input issues and run again. For a successful result, check the stated evidence coverage and assumptions before using it in your review.

Input field	Meaning	Value type	Requirement
topic	Topic	string	Required

Choose one of the exact supported topic tokens in the table below and run the tool. The implementation uses a fixed own-property lookup and returns the selected built-in text inside result.text. Unsupported tokens cause an input error. The reference text is an offline explanatory entry, not a downloaded source or a full external document.

result.text=builtInText[topic]

Symbols follow the input and output meanings and the calculation rules above.

Topic token	Built-in result.text
summary	The Sixteenth Amendment was ratified in 1913 and addressed federal income taxation without apportionment among states.
reference	US Constitution, AmendmentXVI; National Archives.
limitations	Not the first-ever US income tax or authority to infer all receipts are taxable under every present rule.

Output field	Meaning	Value type
result	Calculated observation or qualified reference	object
result.text	Text	string

json

{
  "input": {
    "topic": "summary"
  },
  "output": {
    "result": {
      "text": "The Sixteenth Amendment was ratified in 1913 and addressed federal income taxation without apportionment among states."
    }
  }
}

Limitations and assumptions

The built-in content is a small reference summary. It does not establish current tax liability, eligibility, or filing requirements, and its reference entry names sources rather than fetching them. Not the first-ever US income tax or authority to infer all receipts are taxable under every present rule.

Missing required fields, unknown fields, wrong types, and violated calculation rules are input issues. Extremely large text is rejected. Extremely large composite outputs are rejected.

Alternative or Complementary methods

For a related review, use Civil War 1861 First Federal Income Tax Repealed History: The 1861 federal income-tax measure preceded revised Civil War taxes. This historical reference distinguishes those measures from the later expiry of the temporary income tax in 1872. For a complementary step, use Revenue Act 1924 Modern Code Structure History Lookup: The Revenue Act of 1924 established the Board of Tax Appeals, an institutional milestone distinct from code codification. This reference also records that the first Internal Revenue Code dates to 1939.

References

Sixteenth Amendment 1913 Income Tax Ratification Origin — tool.io
Sixteenth Amendment (1913) — National Archives

Similar or alternative tools

Civil War 1861 First Federal Income Tax Repealed History
The 1861 federal income-tax measure preceded revised Civil War taxes. This historical reference distinguishes those measures from the later expiry of the temporary income tax in 1872.
Revenue Act 1924 Modern Code Structure History Lookup
The Revenue Act of 1924 established the Board of Tax Appeals, an institutional milestone distinct from code codification. This reference also records that the first Internal Revenue Code dates to 1939.