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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)

Accounts Receivable and Allowances

Accounts  receivable  represent  uncollected  payments  from  customers  and  payments  collected  by  channel 
partners from customers on the Company’s behalf which have not yet been remitted to the Company. Accounts 
receivable are recorded at the invoiced amount net of the allowance for credit losses and do not bear interest. 
The  Company’s  accounts  receivable  balances  as  of December  31,  2023,  2024,  and 2025  and  June  30,  2026 
(unaudited) were $10 million, $95 million, $909 million, and $5.8 billion, respectively.

The  Company  regularly  monitors  collections  and  payments  from  customers  and  maintains  an  allowance  for 
credit losses for estimated losses resulting from the inability of customers or channel partners to make or remit 
required  payments.  Management  estimates  the  Company’s  allowance  for  credit  losses  by  considering  factors 
such as historical credit loss experience and current conditions, the length of time accounts receivable are past 
due,  customer  payment  histories,  any  specific  customer  collection  issues  identified,  and  current  market 
conditions which may affect customer financial condition. This assessment is performed on an aggregate basis 
when similar characteristics exist within a customer group and on an individual basis when specific customers 
with collectability risks are identified. The Company writes off accounts receivable against the allowance when 
management determines a balance is uncollectible and no longer actively pursues collection of the receivable.

Changes in the allowance for credit losses were as follows (in millions):

Balance at beginning of period

Change in allowance for credit losses

Write-off of uncollectible accounts receivable

Balance at end of period

Property and Equipment, Net

Year Ended December 31,

2024

2025

Six Months 
Ended June 30,
2026

(unaudited)

$

$

— $

5 $

5

—

20
(8)

5 $

17 $

17

57
(3)

71

Property  and  equipment  is  stated  at  cost  less  accumulated  depreciation.  Depreciation  is  recorded  using  the 
straight-line  method  over  the  estimated  useful  lives  of  the  related  asset,  ranging  from three  to  five  years. 
Leasehold improvements are amortized over the shorter of estimated useful life or the remaining lease term.

The  Company  estimates  the  useful  lives  of  property  and  equipment  upon  initial  recognition  and  periodically 
evaluates the useful lives and whether events or changes in circumstances warrant a revision to the useful lives.

Maintenance and repair costs that do not extend the useful life of the assets are expensed as incurred.

When assets are retired or otherwise disposed of, the cost and accumulated depreciation are removed from the 
accounts and any resulting gain or loss is reflected in the consolidated statements of operations in the period 
realized. 

Software Development Costs

Software development costs include costs to develop advanced AI models and related software solutions used to 
deliver  the  Company’s  services  to  external  users.  Software  development  costs  also  include  costs  to  develop 
software solely for internal use and applications used to support the Company’s operations. Model development 
costs  are  generally  expensed  as  incurred  due  to  the  significant  development  uncertainty  inherent  in  the 
development process. 

The Company capitalizes qualifying software development costs when (i) management, with relevant authority, 
has  authorized  and  committed  to  fund  the  software  project  and  (ii)  it  is  probable  that  the  project  will  be 
completed  and  the  software  will  be  used  to  perform  its  intended  function.  Capitalization  ceases  when  the 
software  is  substantially  complete  and  ready  for  its  intended  use,  including  the  completion  of  all  significant 
testing. Software development costs capitalized were not significant for the years presented.

F-18

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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

How this was made

Read in full.
Kept in context.

A snapshot of the filing dated , rather than a live record of later events.

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.

What the evidence labels mean
Reported in filing
A company disclosure, with the period and accounting basis retained.
Company estimate / company claim
An estimate or assertion attributed to the company, with its uncertainty preserved.
Our calculation
A derived figure using cited inputs. It is not a separately reported company metric.
Customer example
A selected case study, with its measurement limits. It is not representative ROI.
Proposed / conditional
A status qualifier for an arrangement that is not yet effective or depends on stated conditions.

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.