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The documentS–1Anthropic, PBC26 OCT 2026 · 421 PP.
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Table of Contents

Anthropic, PBC
Notes to Consolidated Financial Statements
(Continued)

The components of the provision for income taxes were as follows (in millions):

Current:

Federal

State

Foreign

Total current provision for income taxes

Deferred:

Federal

State

Foreign

Total deferred provision for (benefit from) income taxes

Year Ended December 31,
2024

2025

2023

$

— $

— $

—

2

2

—

—

—

—

—

4

4

—

—
(3)

(3)

Total provision for income taxes

$

2 $

1 $

The following is a reconciliation of the statutory federal income tax rate to the Company’s effective tax rate:

—

—

17

17

—

—

3

3

20

U.S. Federal statutory tax rate

State and local income taxes, net of Federal income tax effect

Foreign tax effects

Research and development credits

Changes in valuation allowances

Mark to market

Other

Provision for income taxes

Pre-tax book income

U.S. Federal statutory tax rate
State and local income taxes, net of Federal income tax effect(1)
Foreign tax effects

Tax credits

Changes in valuation allowances

Nontaxable or nondeductible items

Mark to market

Other nondeductible expenses (no item >5%)

Changes in unrecognized tax benefits

Other

Provision for income taxes

Year Ended December 31,

2023

2024

21.0 %
3.6 %
(0.1)%
1.4 %
(9.4)%

(16.2)%

(0.4)%

(0.1)%

21.0 %
2.4 %
— %
2.2 %
(12.2)%

(13.6)%
0.2 %
— %

Year Ended December 31, 2025

Amount

Percent

$

(41,945)

(8,808)

(47)

34
(404)

1,870

7,192

5

165

13

20

$

21.0 %
0.1 %
(0.1)%
1.0 %
(4.5)%

(17.1)%
— %
(0.4)%
— %
— %

______________
(1) State taxes in California made up the majority (greater than 50%) of the tax effect in this category. 

F-54

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  1. Founders’ letterp. 3SEC
  2. Defined termsp. 12SEC
  3. Prospectus summaryp. 16SEC
  4. Risk factorsp. 38SEC
  5. Management’s discussion & analysisp. 144SEC
  6. Businessp. 190SEC
  7. Governancep. 254SEC
  8. Executive compensationp. 275SEC
  9. Related-person transactionsp. 293SEC
  10. Principal & selling stockholdersp. 299SEC
  11. Capital-stock rightsp. 303SEC
  12. Shares eligible for future salep. 318SEC
  13. Underwritingp. 327SEC
  14. Auditor change & expertsp. 345SEC
  15. Financial statements & notesp. 347SEC
  16. Part II & exhibit indexp. 413SEC

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3primary reviewers
421pages reviewed
43image instances checked

The review

Three primary reviewers read non-overlapping ranges of the complete main filing. All 43 embedded image instances were transcribed and visually reviewed, including the founders’ letter, charts, and customer case studies. Financial tables were also checked visually for dates, units, and column alignment.

A separate reviewer checked the draft’s calculations, accounting interpretations, and customer qualifications. An additional check covered the later merged findings. The result is 62 findings and 21 customer examples.

The boundary

Companion contracts and other exhibits named in the filing’s index are separate documents and were not independently reviewed. Customer outcomes, technical benchmarks, forecasts, and scientific priority claims remain attributed company or customer disclosures.

The numbers

Dollar figures are U.S. dollars. H1 means the six months ended June 30; Q2 means the three months ended June 30. The 2026 interim financial statements are unaudited. Our calculations show their inputs and are labeled separately from reported values.

Blank fields stay undisclosed. Figures with different periods, conditions, or potentially overlapping scopes are kept separate. An earlier tender price is not an IPO price.

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About updates. This edition is tied to the October 26, 2026 filing. Any later revision should identify its new source date and preserve the basis of earlier claims.

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Anthropic · Form S-1PDF 1

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Filed October 26, 2026. PDF is approximately 46 MB and opens only when requested. Section links may precede the exact cited paragraph.