Basis of Presentation

6 Months Ended

Jun. 30, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

(1) Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Fastenal Company and subsidiaries (the 'Company', 'Fastenal', 'we', 'our', or 'us') have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) for interim financial information. They do not include all information and footnotes required by U.S. GAAP for a complete set of financial statements. However, except as described herein, there has been no material change in the information disclosed in the Notes to Consolidated Financial Statements included in our consolidated financial statements as of and for the year ended December 31, 2024. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair statement have been included.

Stock Split

On April 23, 2025, the Company announced a two-for-one stock split of its outstanding common stock. Holders of the Company's common stock, par value $0.01 per share, at the close of business on May 5, 2025, received one additional share of common stock for every share of common stock they owned. The stock split took effect at the close of business on May 21, 2025. All historical common stock share, per share information, stock option awards, and stockholders' equity balances for all periods presented in the accompanying Condensed Consolidated Financial Statements and Notes thereto in this quarterly report on Form 10-Q have been retroactively adjusted to reflect the two-for-one stock split.

Recently Issued Accounting Pronouncements

In December 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2023-09, Improvements to Income Tax Disclosures (Topic 740), which establishes new income tax disclosure requirements in addition to modifying and eliminating certain existing requirements. The new guidance requires consistent categorization and greater disaggregation of information in the rate reconciliation, as well as further disaggregation of income taxes paid. This change is effective for annual periods beginning after December 15, 2024. This change will apply on a prospective basis to annual financial statements for periods beginning after the effective date. However, retrospective application in all prior periods presented is permitted. ASU 2023-09 is expected to impact our income tax disclosures beginning with the consolidated financial statements included in the annual report on Form 10-K for the fiscal year ending December 31, 2025, but will have no impact on our results of operations, cash flows, or financial condition.

In November 2024, the FASB issued ASU 2024-03, Disaggregation of Income Statement Expenses (DISE), which adds new disclosure requirements including the composition of certain income statement expense line items (such as purchases of inventory, employee compensation, and 'other expenses') and a separate disclosure for selling expenses. This change is effective for fiscal years beginning after December 15, 2026, and interim periods beginning after December 15, 2027, however, early adoption is permitted. We are currently evaluating the impact that the adoption of ASU 2024-03 will have on our consolidated financial statements and disclosures and anticipate adoption in our annual report on Form 10-K for the fiscal year ending December 31, 2027.