UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549   FORM 10-K    ☒
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 or  ☐
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from  to   AMERICAN
EXPRESS CREDIT ACCOUNT MASTER TRUST (Exact name of Issuing Entity as specified in its charter)   AMERICAN EXPRESS RECEIVABLES FINANCING CORPORATION III LLC (Exact name of Depositor as specified in its charter) AMERICAN EXPRESS NATIONAL BANK (Exact name of Sponsor as specified in its charter) Commission File Number of
Issuing Entity: 000-20787-07 Central
Index Key Number of Issuing Entity: 0001003509 Commission File Number of Depositor: 333-113579-02 Central Index Key Number of Depositor: 0001283434 Central Index Key Number of Sponsor: 0000949348  New York

Not Applicable(State or other Jurisdiction of
Incorporation or Organization
of the Issuing Entity)

(I.R.S. Employer
Identification Number of
the Issuing Entity)c/o The Bank of New York Mellon
Corporate Trust 240
Greenwich Street New York, New York

10286(Address of the Principal Executive Offices of the Issuing Entity)

(Zip Code of the Issuing Entity) (212) 815-6258 (Telephone Number, including area code of the Issuing Entity, c/o The Bank of New York Mellon) Securities registered pursuant to Section 12(b) of the Act: None Securities registered pursuant to Section 12(g) of the Act: None   Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities
Act. YES ☐ NO ☒ Indicate by check mark if the registrant is not required to file reports pursuant to Section 13
or Section 15(d) of the Act. YES ☐ NO ☒ Indicate by check mark whether the registrant (1) has filed all
reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days. YES ☒ NO ☐ Indicate by check mark whether the registrant has submitted
electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the
registrant was required to submit such files). YES ☒ NO ☐ Indicate by check mark whether the registrant is a large
accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of large accelerated filer, accelerated
filer, smaller reporting company, and emerging growth company in Rule 12b-2 of the Exchange Act.  Large accelerated filer

☐

Accelerated filer

☐Non-accelerated filer

☒

Smaller reporting company

☐Emerging growth company

☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period
for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Indicate
by check mark whether the registrant has filed a report on and attestation to its managements assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C.
7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐ If securities are registered pursuant to
Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by
any of the registrants executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). ☐ Registrant has no voting or non-voting common equity outstanding held by
non-affiliates.   DOCUMENTS
INCORPORATED BY REFERENCE: NONE




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PART I The following Items have been omitted in accordance with General Instruction J to Form 10-K:  Item 1.
Business.  Item 1A.
Risk Factors.  Item 1C.
Cybersecurity.  Item 2.
Properties.  Item 3.
Legal Proceedings. Item 1B. Unresolved Staff Comments. Not Applicable. Item 4. Mine Safety
Disclosures. Not Applicable. Substitute Information provided in accordance with General Instruction J to Form 10-K: Item 1112(b) of Regulation AB: Significant obligors of pool assets (Financial information). The pool assets held by the American Express Credit Account Master Trust (the Trust) do not include any significant obligors. Item 1114(b)(2) of Regulation AB: Credit enhancement and other support, except for certain derivatives instruments (Financial information). Based on the standards set forth in Item 1114(b) of Regulation AB, no information is required in response to this Item. Item 1115(b) of Regulation AB: Certain derivatives instruments (Financial information). Based on the standards set forth in Item 1115(b) of Regulation AB, no information is required in response to this Item. Item 1117 of Regulation AB: Legal proceedings. In the ordinary course of business, American Express Company and its subsidiaries (American Express) are subject to various pending
and potential legal actions, arbitration proceedings, claims, investigations, examinations, regulatory proceedings, information gathering requests, subpoenas, inquiries and matters relating to compliance with laws and regulations (collectively,
legal proceedings). Based on American Express current knowledge, and taking into consideration our litigation-related liabilities,
American Express does not believe it is a party to, nor are any of its properties the subject of, any legal proceeding that would have a material adverse effect on its consolidated financial condition or liquidity. However, in light of the
uncertainties involved in such matters, including the fact that some pending legal proceedings are at preliminary stages or seek an indeterminate amount of damages, penalties or fines, it is possible that the outcome of legal proceedings could have
a material impact on its results of operations. Certain legal proceedings involving American Express are described below. On
February 25, 2020, American Express was named as a defendant in a case filed in the Superior Court of California, Los Angeles County, captioned Laurelwood Cleaners LLC v. American Express Co., et al., in which the plaintiff seeks a
public injunction in California prohibiting American Express from enforcing its anti-steering and non-discrimination provisions and from requiring merchants to offer the service of Amex-card acceptance
for free. The case has been stayed pending the outcome of arbitration proceedings. On January 29, 2019, American Express was
named in a putative class action brought in the United States District Court for the Eastern District of New York, captioned Anthony Oliver, et al. v. American Express Company and American Express Travel Related Services Company Inc., in
which the plaintiffs are holders of MasterCard, Visa and/or Discover credit and/or debit cards (but not American Express cards) and allege they paid higher prices as a result of American Express anti-steering and
non-discrimination provisions in violation of federal antitrust law and the antitrust and consumer laws of various states. Plaintiffs seek unspecified damages and other forms of relief. The court dismissed
plaintiffs federal antitrust claim, numerous state antitrust and consumer protection claims and their unjust enrichment claim. For the remaining state antitrust or consumer protection claims, the court certified classes for (i) holders of
Visa and MasterCard debit cards in eight states and Washington, D.C.; and (ii) holders of Visa, MasterCard and Discover credit cards that do not offer rewards or charge an annual fee in two states and Washington, D.C. American Express has
appealed the courts class certification decisions. On March 8, 2016, plaintiffs B&R Supermarket, Inc. d/b/a Milams
Market and Grove Liquors LLC, on behalf of themselves and others, filed a suit, captioned B&R Supermarket, Inc. d/b/a Milams Market, et al. v. Visa Inc., et al., for violations of the Sherman Antitrust Act, the Clayton Antitrust
Act, Californias Cartwright Act and unjust enrichment in the United States District Court for the Northern District of California, against American Express Company, other credit and charge card networks, other issuing banks and EMVCo, LLC.
Plaintiffs




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allege that the defendants, through EMVCo, conspired to shift liability for fraudulent, faulty and otherwise rejected consumer credit card transactions from themselves to merchants after the
implementation of EMV chip payment terminals. Plaintiffs seek damages and injunctive relief. An amended complaint was filed on July 15, 2016. On September 30, 2016, the court denied American Express motion to dismiss as to claims
brought by merchants who do not accept American Express cards, and on May 4, 2017, the California court transferred the case to the United States District Court for the Eastern District of New York. On August 28, 2020, the court granted
plaintiffs motion for class certification. In July 2004, American Express was named as a defendant in a putative class action filed
in the Southern District of New York and subsequently transferred to the Eastern District of New York, captioned The Marcus Corporation v. American Express Co., et al., in which the plaintiffs allege an unlawful antitrust tying arrangement
between certain of American Express charge cards and credit cards in violation of various state and federal laws. The plaintiffs in this action seek injunctive relief and an unspecified amount of damages. In 2006, Mawarid Investments Limited filed a request for confidential arbitration under the 1998 London Court of International Arbitration
Rules in connection with certain claims arising under a shareholders agreement between Mawarid and American Express Travel Related Services Company, Inc. relating to a joint venture between the parties, Amex (Middle East) BSC(c) (AEME). In 2008, the
tribunal rendered a partial award, including a direction that an audit should take place to verify whether acquirer discount revenue related to transactions occurring with airlines located in the Middle East region had been properly allocated to
AEME since its inception in 1992. In September 2021, the tribunal rendered a further partial award regarding the location of transactions through non-physical channels. In May 2022, the tribunal further
clarified the 2021 partial award and the discount rate that should apply to transactions through non-physical channels. In May 2020, American Express began responding to a review by the Office of the Comptroller of the Currency (OCC) and the Department of
Justice (DOJ) Civil Division regarding historical sales practices relating to sales to small business customers in the United States. In January 2021, American Express received a grand jury subpoena from the United States Attorneys Office for
the Eastern District of New York (EDNY) regarding these sales practices issues, as well as a Civil Investigative Demand from the Consumer Financial Protection Bureau (CFPB) pertaining to its investigation into sales practices related to consumers.
American Express has also been made aware of a related investigation by the New York Department of Financial Services (NYDFS). In January
2023, the CFPB notified American Express that its investigation was completed and that it does not intend to recommend an enforcement action be taken against American Express at this time. In July 2023, American Express reached a settlement with the
OCC to resolve its review of historical sales practices to certain U.S. small business card customers that occurred between 2015 and 2017. The DOJ, EDNY and NYDFS investigations are ongoing, and American Express is cooperating with all
inquiries. PART II The following
Items have been omitted in accordance with General Instruction J to Form 10-K:  Item 5.
Market for Registrants Common Equity, Related Stockholder Matters and Issuer Purchases of Equity
Securities.  Item 6.
[Reserved]  Item 7.
Managements Discussion and Analysis of Financial Condition and Results of Operations.  Item 7A.
Quantitative and Qualitative Disclosures About Market Risk.  Item 8.
Financial Statements and Supplementary Data.  Item 9.
Changes in and Disagreements with Accountants on Accounting and Financial Disclosure.  Item 9A.
Controls and Procedures. Item 9B. Other Information. Not
Applicable. Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections. Not Applicable.




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PART III The following Items have been omitted in accordance with General Instruction J to Form 10-K:  Item 10.
Directors, Executive Officers and Corporate Governance.  Item 11.
Executive Compensation.  Item 12.
Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.  Item 13.
Certain Relationships and Related Transactions, and Director Independence.  Item 14.
Principal Accountant Fees and Services. Substitute Information provided in accordance with General Instruction J to Form 10-K: Item 1119 of Regulation AB: Affiliations and Certain Relationships and Related Transactions. Information required by Item 1119 of Regulation AB has been omitted from this report
on Form 10-K in reliance on the Instruction to Item 1119. Item 1122 of
Regulation AB: Compliance with Applicable Servicing Criteria. Each of American Express Travel Related Services Company, Inc.
(TRS) (for itself and on behalf of its wholly owned subsidiary, American Express National Bank (AENB)), and The Bank of New York Mellon (each, a Servicing Participant) has been identified by the registrant as a
party participating in the servicing function with respect to the pool assets held by the Trust for all or a portion of the period covered by this Form 10-K. Each of the Servicing Participants has completed a report on an assessment of compliance with the servicing criteria applicable to such
Servicing Participant (each, a Report on Assessment) as of and for the year ended December 31, 2023, which Reports on Assessment are attached as exhibits to
this Form 10-K. In addition, each of the Servicing Participants has provided an attestation report (each, an Attestation Report) by a registered independent public accounting
firm regarding its related Report on Assessment. Each Attestation Report is attached as an exhibit to this Form 10-K. Vendors A Servicing Participant may
engage one or more vendors, who are not considered servicers for purposes of Regulation AB, to perform specific and limited, or scripted activities that address all or a portion of one or more servicing criteria applicable to such Servicing
Participant. In general in these cases, the Servicing Participant has instituted policies and procedures to monitor whether such vendors activities comply in all material respects with such servicing criteria, and may elect to take
responsibility for assessing compliance with the servicing criteria applicable to such vendors activities in such Servicing Participants Report on Assessment. Where the Servicing Participant has not instituted such policies and procedures, or where the Servicing Participant does not otherwise elect
to take responsibility for assessing its vendors activities, the vendor is itself treated as a Servicing Participant and is required to provide its own Report on Assessment and related Attestation Report. Platform Level Reports Regulations of
the Securities and Exchange Commission require that each Servicing Participant complete a Report on Assessment at a platform level, meaning that the transactions covered by the Report on Assessment should include all asset-backed
securities transactions involving such Servicing Participant that are backed by the same asset type. During 2023, TRS proprietary facilities conducted paper payment remittance processing services and performed billing dispute services. The
Bank of New York Mellon is Trustee of the Trust. In its Report on Assessment attached as Exhibit 33.2 to this Form 10-K, The Bank of New York Mellon defines its platform to include publicly
issued (i.e., transaction-level reporting initially required under the Securities Exchange Act of 1934, as amended) asset-backed securities issued on or after January 1, 2006 that are subject to Regulation AB (including transactions subject to
Regulation AB by contractual obligation) for which The Bank of New York Mellon provides trustee, securities administration, paying agent or custodial services, as defined and to the extent applicable in the transaction agreements, other than
residential mortgage-backed securities and other mortgage-related asset-backed securities. Neither TRS nor the Trust is an affiliate of
The Bank of New York Mellon. Item 1123 of Regulation AB: Servicer Compliance Statement. Each of TRS and AENB has been identified by the registrant as a servicer or subservicer with respect to the pool assets held by the Trust for
the period covered by this Form 10-K. Each of them has provided a Statement of Compliance for the period covered by this Form 10-K (a Compliance
Statement), in each case signed by an authorized officer thereof. Each Compliance Statement is attached as an exhibit to this Form 10-K.




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PART IV Item 15. Exhibits and Financial Statement Schedules. (a)  (1) Not applicable. (2) Not applicable. (3) The
exhibits filed in response to Item 601 of Regulation S-K are listed in the Exhibit Index. (b)  The exhibits filed in response to Item 601
of Regulation S-K are listed in the Exhibit Index. (c)  Not
applicable. Item 16. Form 10-K Summary. Not applicable.




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EXHIBITS The following exhibits are filed as part of this Annual Report or, where indicated, were heretofore filed and are hereby incorporated by reference (*
indicates exhibits electronically filed herewith).  3.1

Amended and Restated Limited Liability Company Agreement of American 
Express Receivables Financing Corporation III LLC (incorporated herein by reference to Exhibit 3.1 of Form S-3/A, filed April 20, 2004, File No.333-113579).3.2

Amendment Number One to the Amended and Restated Limited Liability Company Agreement of American Express Receivables Financing Corporation III
 LLC, dated as of April 1, 2018 (incorporated herein by reference to Exhibit 3.1 of Form8-K, dated April 1, 2018,
File No.000-20787-07).4.1

Fourth Amended and Restated Pooling and Servicing Agreement, dated as of April 
1, 2018, among American Express Receivables Financing Corporation III LLC, as Transferor, American Express Travel Related Services Company, Inc., as Servicer, and The Bank of New York Mellon, as Trustee and Securities Intermediary (incorporated herein by
 reference to Exhibit 4.1 of Form8-K, dated April 1, 2018,
File No.000-20787-07).4.2

Amended and Restated Receivables Purchase Agreement, dated as of April 
1, 2018, between American Express National Bank and American Express Receivables Financing Corporation III LLC (incorporated herein by reference to Exhibit 4.3 of Form8-K, 
dated April 1, 2018, File No.000-20787-07).4.3

Series 2021-1 Supplement, dated as of November 
17, 2021, supplementing the Fourth Amended and Restated Pooling and Servicing Agreement, dated as of April 
1, 2018, as amended from time to time (incorporated herein by reference to Exhibit 4.1 of Form 8-K, dated November 17, 2021, File No.000-20787-07).4.4

Series 2022-1 Supplement, dated as of March 
18, 2022, supplementing the Fourth Amended and Restated Pooling and Servicing Agreement, dated as April 
1, 2018, as amended from time to time (incorporated herein by reference to Exhibit 4.1 of Form 8-K, dated March 18, 2022, File No.000-20787-07).4.5

Series2022-2 Supplement, dated as of May 
24, 2022, supplementing the Fourth Amended and Restated Pooling and Servicing Agreement, dated as of April 
1, 2018, as amended from time to time (incorporated herein by reference to Exhibit 4.1 of Form8-K, dated May 24, 2022, File No.000-20787-07).4.6

Series2022-3 Supplement, dated as of August 
16, 2022, supplementing the Fourth Amended and Restated Pooling and Servicing Agreement, dated as of April 
1, 2018, as amended from time to time (incorporated herein by reference to Exhibit 4.1 of Form8-K, dated August 16, 2022, File No.000-20787-07).4.7

Series2022-4 Supplement, dated as of November 
3, 2022, supplementing the Fourth Amended and Restated Pooling and Servicing Agreement, dated as of April 
1, 2018, as amended from time to time (incorporated herein by reference to Exhibit 4.1 of Form8-K, dated November 3, 2022, File No.000-20787-07).4.8

Series2023-1 Supplement, dated as of June 
14, 2023, supplementing the Fourth Amended and Restated Pooling and Servicing Agreement, dated as of April 1, 2018, as amended from time to time (incorporated herein by reference to Exhibit 4.1 of Form 8-K, dated June 14, 2023, File No.000-20787-07).4.9

Series2023-2 Supplement, dated as of June 
14, 2023, supplementing the Fourth Amended and Restated Pooling and Servicing Agreement, dated as of April 1, 2018, as amended from time to time (incorporated herein by reference to Exhibit 4.2 of Form 8-K, dated June 14, 2023, File No.000-20787-07).4.10

Series2023-3 Supplement, dated as of September 
19, 2023, supplementing the Fourth Amended and Restated Pooling and Servicing Agreement, dated as of April 1, 2018, as amended from time to time (incorporated herein by reference to Exhibit 4.1 of Form 8-K, dated September 19, 2023, File No.000-20787-07).4.11

Series2023-4 Supplement, dated as of September 
19, 2023, supplementing the Fourth Amended and Restated Pooling and Servicing Agreement, dated as of April 1, 2018, as amended from time to time (incorporated herein by reference to Exhibit 4.2 of Form 8-K, dated September 19, 2023, File No.000-20787-07).4.12

Omnibus Amendment to Group II Series Supplements, dated as of October 
2, 2009, among American Express Receivables Financing Corporation II, American Express Receivables Financing Corporation III LLC, American Express Receivables Financing Corporation IV LLC, American Express Travel Related Services Company, Inc. and The Bank
 of New York Mellon (incorporated herein by reference to Exhibit 4.3 of Form8-K, dated October 2, 2009, File No.000-20787-07).4.13

Omnibus Amendment to Series Supplements, dated as of January 
29, 2014, among American Express Receivables Financing Corporation II, American Express Receivables Financing Corporation III LLC, American Express Receivables Financing Corporation IV LLC, American Express Travel Related Services Company, Inc. and The
 Bank of New York Mellon (incorporated herein by reference to Exhibit 4.2 of Form8-K, dated January 29, 2014, File No.000-20787-07).




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4.14

Omnibus Amendment to Series Supplements, dated as of July 
20, 2016, among American Express Receivables Financing Corporation II, American Express Receivables Financing Corporation III LLC, American Express Receivables Financing Corporation IV LLC, American Express Travel Related Services Company, Inc. and The
 Bank of New York Mellon (incorporated herein by reference to Exhibit 4.2 of Form8-K, dated July 20, 2016, File No.000-20787-07).4.15

Omnibus Amendment to Series Supplements, dated as of April 
1, 2018, among American Express Receivables Financing Corporation III LLC, American Express Travel Related Services Company, Inc. and The Bank of New York Mellon (incorporated herein by reference to Exhibit 4.2 of Form8-K, dated April 1, 2018, File No.000-20787-07).10.1

Amended and Restated Asset Representations Review Agreement, dated as of April 
1, 2018, among American Express Receivables Financing Corporation III LLC, American Express Travel Related Services Company, Inc. and Clayton Fixed Income Services LLC (incorporated herein by reference to Exhibit 10.1 of Form8-K, dated April 1, 2018, File No.000-20787-07).31.1*

Certification of Chen Wang pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 for the period from and including January 1, 2023 to and including December 
31, 2023.33.1*

Report on Assessment of Compliance with Servicing Criteria of American Express Travel Related Services Company, Inc. and American Express National Bank.33.2*

Report on Assessment of Compliance with Servicing Criteria of The Bank of New York Mellon.34.1*

Attestation Report of PricewaterhouseCoopers LLP on Assessment of Compliance with Servicing Criteria relating to American Express Travel Related Services Company, Inc.34.2*

Attestation Report of KPMG on Assessment of Compliance with Servicing Criteria relating to The Bank of New York Mellon.35.1*

Servicer Compliance Statement of American Express Travel Related Services Company, Inc.35.2*

Servicer Compliance Statement of American Express National Bank.99.1

Third Amended and Restated Supplemental Servicing Agreement, dated as of April 
1, 2018, among American Express Travel Related Services Company, Inc., American Express National Bank and American Express Receivables Financing Corporation III LLC (incorporated herein by reference to Exhibit 4.4 of Form8-K, dated April 1, 2018, File No.000-20787-07).99.2

Second Amended and Restated Defaulted Receivables Supplemental Servicing Agreement, dated as of April 
1, 2018, among American Express Travel Related Services Company, Inc., American Express National Bank and American Express Receivables Financing Corporation III LLC (incorporated herein by reference to Exhibit 4.5 of Form8-K, dated April 1, 2018, File No.000-20787-07).




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SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on
its behalf by the undersigned, hereunto duly authorized.  AMERICAN EXPRESS CREDIT ACCOUNT MASTER TRUSTBy:

AMERICAN EXPRESS RECEIVABLES FINANCING CORPORATION III LLC,
DepositorBy:

/s/ Chen WangName:

Chen WangTitle:

President (Senior officer in charge of
securitization)
 Dated: March 21, 2024