Annual report [Section 13 and 15(d), not S-K Item 405]

Document and Entity Information

v3.25.3
Document and Entity Information - USD ($)
$ in Millions
12 Months Ended
Oct. 04, 2025
Dec. 05, 2025
Mar. 28, 2025
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Amendment Flag false    
Document Period End Date Oct. 04, 2025    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Trading Symbol LESL    
Entity Registrant Name LESLIE’S, INC.    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Central Index Key 0001821806    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Current Fiscal Year End Date --10-04    
Entity Filer Category Accelerated Filer    
Entity Public Float     $ 153.3
Entity Common Stock, Shares Outstanding   9,290,311  
Entity Shell Company false    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Transition Report false    
Entity File Number 001-39667    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 20-8397425    
Entity Address, Address Line One 2005 East Indian School Road    
Entity Address, City or Town Phoenix    
Entity Address, State or Province AZ    
Entity Address, Postal Zip Code 85016    
City Area Code 602    
Local Phone Number 366-3999    
Documents Incorporated by Reference

DOCUMENTS INCORPORATED BY REFERENCE

The information required by Part III of this Report, to the extent not set forth herein, is incorporated herein by reference from the Registrant’s definitive proxy statement relating to the Annual Meeting of Shareholders to be held in 2026, which definitive proxy statement shall be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this Annual Report on Form 10-K relates.

   
Title of 12(b) Security Common Stock, par value $0.001 per share    
Security Exchange Name NASDAQ    
Document Financial Statement Error Correction [Flag] false    
Auditor Name Ernst & Young LLP    
Auditor Location Phoenix, Arizona    
Auditor Firm ID 42    
Auditor Opinion [Text Block]

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Leslie’s, Inc. (the Company) as of October 4, 2025 and September 28, 2024, the related consolidated statements of operations, stockholders’ deficit and cash flows for each of the three years in the period ended October 4, 2025, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at October 4, 2025 and September 28, 2024, and the results of its operations and its cash flows for each of the three years in the period ended October 4, 2025, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of October 4, 2025, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), and our report dated December 18, 2025 expressed an adverse opinion thereon.

Opinion on Internal Control Over Financial Reporting

We have audited Leslie’s, Inc.’s internal control over financial reporting as of October 4, 2025, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, because of the effect of the material weaknesses described below on the achievement of the objectives of the control criteria, Leslie’s, Inc. (the Company) has not maintained effective internal control over financial reporting as of October 4, 2025, based on the COSO criteria.

A material weakness is a deficiency, or combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of the company’s annual or interim financial statements will not be prevented or detected on a timely basis. The following material weaknesses were identified and included in management’s assessment. Management has identified material weaknesses in controls related to the Company’s inventory and asset impairment processes.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of October 4, 2025 and September 28, 2024, the related consolidated statements of operations, stockholders’ deficit and cash flows for each of the three years in the period ended October 4, 2025, and the related notes. These material weaknesses were considered in determining the nature, timing and extent of audit tests applied in our audit of the 2025 consolidated financial statements, and this report does not affect our report dated December 18, 2025, which expressed an unqualified opinion thereon.