Standards & Authoritative Sources
7- FASB Accounting Standards Codification The single source of authoritative US GAAP, searchable online (free Basic View).
- Financial Accounting Standards Board (FASB) Standard setter for US GAAP; publishes Accounting Standards Updates, exposure drafts, and project updates.
- IFRS Foundation (IASB) Issuer of IFRS Accounting Standards used in 140+ jurisdictions, with a free register of issued standards.
- SEC EDGAR Full-Text Search Full-text search across public company filings; the primary corpus for disclosure research and benchmarking.
- SEC Financial Reporting Manual Division of Corporation Finance staff guidance on SEC financial statement requirements.
- SEC Staff Accounting Bulletins SEC staff interpretations on accounting and disclosure (e.g., materiality and revenue).
- AICPA & CIMA Audit and accounting guides, Technical Questions and Answers, and the Center for Plain English Accounting.
Firm Reference Libraries
8Free hubs where the major firms publish their interpretive accounting guidance.
- BDO Accounting Standards & Reporting Matters Blueprints, bulletins, and newsletters on US GAAP and SEC developments.
- Deloitte Accounting Research Tool (DART) Deloitte's Roadmap series and manuals, much of it free with registration.
- Deloitte IAS Plus Free global IFRS and US GAAP news, standards summaries, and resources.
- EY AccountingLink EY's Financial Reporting Developments publications, Technical Line guidance, and quarterly briefs.
- Grant Thornton Insights Accounting and reporting bulletins, New Developments Summaries, and quarterly updates.
- KPMG Financial Reporting View KPMG's hub of handbooks, hot topics, and CPE-eligible insights on US GAAP, IFRS, and SEC reporting.
- PwC Viewpoint PwC's accounting and reporting guides, In briefs, and In depths (free registration).
- RSM Financial Reporting Resource Center Bi-weekly Financial Reporting Insights and topic-organized accounting guidance.
Big Four Accounting & Reporting Guides
109In-depth interpretive guides from the Big Four firms. Links point to the firms' freely available PDFs, or to the guide's web page where no PDF is posted.
Deloitte
- Revenue recognition Roadmap to applying ASC 606.
EY
- Accounting changes and error corrections Financial Reporting Developments on ASC 250.
- Asset retirement obligations Financial Reporting Developments on ASC 410.
- Business combinations Financial Reporting Developments on ASC 805.
- Certain investments in debt and equity securities Financial Reporting Developments on ASC 320 and ASC 321.
- Consolidation Financial Reporting Developments on ASC 810.
- Credit impairment under ASC 326 Financial Reporting Developments on the CECL model.
- Derivatives and hedging Financial Reporting Developments on ASC 815.
- Disaggregation of income statement expenses Financial Reporting Developments on ASU 2024-03 (DISE).
- Earnings per share Financial Reporting Developments on ASC 260.
- Equity method investments and joint ventures Financial Reporting Developments on ASC 323.
- Fair value measurement Financial Reporting Developments on ASC 820.
- Foreign currency matters Financial Reporting Developments on ASC 830.
- Gains and losses from the derecognition of nonfinancial assets Financial Reporting Developments on ASC 610-20.
- Impairment or disposal of long-lived assets Financial Reporting Developments on ASC 360.
- Income taxes Financial Reporting Developments on ASC 740.
- Intangibles, goodwill and other Financial Reporting Developments on ASC 350.
- Issuer's accounting for debt and equity financings Financial Reporting Developments on debt and equity financings.
- Lease accounting Financial Reporting Developments on ASC 842.
- Pro forma financial information Guide to applying Article 11 of Regulation S-X.
- Real estate project costs Financial Reporting Developments on real estate project costs.
- Revenue from contracts with customers Financial Reporting Developments on ASC 606.
- Share-based payment Financial Reporting Developments on ASC 718.
- Statement of cash flows Financial Reporting Developments on ASC 230.
- Transfers and servicing of financial assets Financial Reporting Developments on ASC 860.
- US GAAP versus IFRS: the basics Comparison of US GAAP and IFRS Accounting Standards.
KPMG
- Accounting changes and error corrections Handbook on ASC 250.
- Accounting for bankruptcies Handbook on ASC 852 reorganizations and liquidations.
- Accounting for income taxes Handbook on ASC 740.
- AI and automation in financial reporting Guide to applying AI and automation in the reporting process.
- Asset acquisitions Handbook on ASC 805-50.
- Bitcoin custodians Whitepaper on the role of custodians in bitcoin adoption and ownership.
- Business combinations Handbook on ASC 805 and noncontrolling interests.
- Climate risk in the financial statements Handbook on the effects of climate risk on the financial statements.
- Consolidation Handbook on ASC 810 (VIE and voting interest models).
- Contingencies, commitments and guarantees Handbook on ASC 450 and ASC 460.
- Credit impairment Handbook on the ASC 326 CECL model.
- Crypto asset lending Lenders' accounting for loans of crypto intangible assets.
- Crypto intangible assets Accounting and reporting for crypto intangible assets under ASC 350-60.
- Crypto intangible assets (investment companies) Investment company accounting for crypto intangible assets.
- Crypto staking activities Accounting for crypto staking rewards.
- Debt and equity financing Handbook on debt versus equity classification and financing transactions.
- Derivatives and hedging Handbook on ASC 815.
- Digital assets: IFRS vs US GAAP How digital-asset accounting differs between IFRS and US GAAP.
- Discontinued operations and held-for-sale disposal groups Handbook on ASC 205-20 and ASC 360-10.
- Earnings per share Handbook on ASC 260.
- Economic disruption Handbook on accounting through economic disruption and uncertainty.
- Employee benefits Handbook on ASC 712 and ASC 715.
- Equity method of accounting Handbook on ASC 323.
- Fair value measurement Handbook on ASC 820.
- Financial statement presentation Handbook on overall financial statement presentation.
- Foreign currency Handbook on ASC 830.
- GHG emissions reporting Handbook on greenhouse gas emissions reporting.
- Going concern Handbook on the ASC 205-40 going concern assessment.
- IFRS compared to US GAAP Handbook comparing IFRS Accounting Standards to US GAAP.
- IFRS vs US GAAP: CARES Act CARES Act accounting under IFRS compared to US GAAP.
- Impairment of nonfinancial assets Handbook on goodwill, intangible, and long-lived asset impairment.
- Internal control over financial reporting Handbook on designing and evaluating ICFR.
- Inventory Handbook on ASC 330.
- Investment companies Handbook on ASC 946.
- Investments Handbook on debt and equity securities (ASC 320 and ASC 321).
- Leases Handbook on ASC 842.
- Long-duration contracts (insurance) Handbook on the LDTI insurance standard (ASU 2018-12).
- NFTs Accounting for nonfungible tokens.
- Public offerings: non-US issuers Filing requirements for non-US issuers in US public offerings.
- Public offerings: US issuers Filing requirements for US issuers in public offerings.
- Real estate lessor guide ASC 842 lessor accounting for real estate.
- Real estate revenue ASC 606 revenue for real estate.
- Reference rate reform Handbook on ASC 848 (LIBOR transition).
- Research and development Handbook on ASC 730.
- Revenue for franchisors ASC 606 revenue for franchisors.
- Revenue for software and SaaS ASC 606 revenue for software and SaaS.
- Revenue recognition Handbook on ASC 606.
- SEC reporting for business combinations Regulation S-X Rule 3-05 and Article 11 pro forma requirements.
- Segment reporting Handbook on ASC 280 (post ASU 2023-07).
- Service concession arrangements Handbook on ASC 853.
- Share-based payment Handbook on ASC 718.
- Software and website costs Handbook on ASC 350-40 and ASC 985-20.
- Stablecoins Accounting and reporting considerations for stablecoins.
- Statement of cash flows Handbook on ASC 230.
- Tax credits Handbook on accounting for tax credits and credit investments.
- Transfers and servicing of financial assets Handbook on ASC 860.
PwC
- Bankruptcies and liquidations Guide on ASC 852.
- Business combinations and noncontrolling interests Guide on ASC 805 and ASC 810.
- Consolidation Guide on ASC 810 (VIEs and voting interests).
- Crypto assets Guide to accounting for crypto assets.
- Derivatives and hedging Guide on ASC 815.
- Equity method investments and joint ventures Guide on ASC 323.
- Fair value measurements Guide on ASC 820.
- Financial statement presentation Guide on overall financial statement presentation.
- Financing transactions Guide on debt, equity, and financing arrangements.
- Foreign currency Guide on ASC 830.
- Health care entities Industry guide for health care entities.
- IFRS and US GAAP: similarities and differences Comparison of IFRS and US GAAP.
- Income taxes Guide on ASC 740.
- Insurance contracts Guide on ASC 944 for insurance entities (post ASU 2018-12).
- Inventory Guide on ASC 330.
- Investment companies Industry guidance for investment companies (ASC 946).
- Leases Guide on ASC 842.
- Loans and investments Guide on loans and debt and equity investments.
- Not-for-profit entities Guide on ASC 958.
- Pensions and other employee benefits Guide on ASC 715.
- Pharmaceutical and life sciences Industry GAAP issues and solutions.
- Property, plant, equipment and other assets Guide on ASC 360.
- Reference rate reform Guide on ASC 848.
- Revenue from contracts with customers Guide on ASC 606.
- Stock-based compensation Guide on ASC 718.
- Transfers and servicing of financial assets Guide on ASC 860.
- Utilities and power companies Industry guide for utilities and power companies.
Other Firm Accounting & Reporting Guides
69In-depth interpretive guides from national and mid-tier accounting firms. Links point to the firms' freely available PDFs, or to the guide's web page where no PDF is posted.
Baker Tilly
- ASC 606 revenue recognition e-book E-book on applying ASC 606.
- ASC 606 revenue recognition resource page Hub of ASC 606 revenue recognition resources.
- ASC 842 compliance for nonpublic entities What nonpublic entities can expect under ASC 842.
- ASC 842 leases guidebook Guidebook on adapting lease accounting to ASC 842.
- Lease accounting resource page Hub of ASC 842 and GASB 87 lease accounting resources.
BDO
- Accounting for cryptocurrencies Blueprint on accounting for crypto assets.
- Accounting for leases under ASC 842 Guide on lessee and lessor accounting under ASC 842.
- COVID-19 accounting and reporting considerations Accounting and reporting considerations arising from COVID-19.
- Financial reporting considerations for tariffs Financial reporting implications of tariffs.
- Identifying performance obligations in the software industry Supplement to the ASC 606 Blueprint for software.
- Lease accounting for the retail and restaurant industries Blueprint on ASC 842 for retail and restaurant entities.
- Revenue recognition under ASC 606 Blueprint on ASC 606.
- Understanding GASB Implementation Guide No. 2025-1 Public sector guidance on GASB Implementation Guide 2025-1.
CLA
- Applying Topic 606 using various contract examples ASC 606 illustrated with contract examples.
- How to apply new revenue recognition rules to your construction company ASC 606 for construction companies.
- Impact of revenue recognition standards Overview of the impact of ASC 606.
- Independent school revenue recognition for tuition Tuition revenue recognition for independent schools.
- PPP FAQ accounting questions Accounting questions on Paycheck Protection Program loans.
- Preparing for changing revenue recognition guidelines Preparing to adopt ASC 606.
- Steps to prepare for new lease standards Steps to prepare for ASC 842.
- Technology companies and revenue recognition ASC 606 for technology companies.
Crowe
- 2024 AICPA & CIMA Conference highlights Highlights from the 2024 AICPA & CIMA Conference on SEC and PCAOB developments.
- 2024 illustrative financial statements: financial institutions Illustrative financial statements for financial institutions.
- 2025 illustrative financial statements Illustrative financial statements for 2025.
- Applying the new revenue recognition standard to financial institutions ASC 606 for financial institutions.
- Implementing the new revenue recognition standard for restaurant and retail ASC 606 for restaurant and retail entities.
- Q1 2025 accounting and financial reporting developments Quarterly accounting and financial reporting developments.
- Revenue recognition under ASC 606 Presentation on the five-step ASC 606 model.
- SEC comment letters in the life sciences industry 2025 edition of SEC comment letter trends for life sciences.
Forvis Mazars
- ASC 842 considerations and best practices Considerations and best practices for ASC 842.
- ASC 842 refresher: modifications and impairment Lease modifications and impairment under ASC 842.
- Cost Accounting Standards compliance guide Guide to Cost Accounting Standards compliance.
- Details on FASB's new public company expense disclosures DISE disclosures under ASU 2024-03.
- FASB finalizes common control lease relief Common control lease arrangements under ASC 842.
- FASB quarterly update, 1Q 2025 FASB standard-setting update for the first quarter of 2025.
- New guidance on accounting for government grants New FASB guidance on accounting for government grants.
- New JV accounting rules: fair value Joint venture formation accounting at fair value (ASU 2023-05).
- Prepared for new fair value guidance for restricted equity securities? Fair value guidance for restricted equity securities (ASU 2022-03).
- Private company accounting relief projects move forward Update on private company accounting relief projects.
- Quarterly financial reporting update Quarterly accounting and financial reporting update.
- Sale and leaseback transactions accounting refresher Sale and leaseback transactions under ASC 842.
Grant Thornton
- Applying ASC 360 to right-of-use assets Impairment of right-of-use assets under ASC 360.
- ASU 2021-09 discount rate guidance for nonpublic lessees Discount rate practical expedient for nonpublic lessees.
- Changing economic and fiscal policy: reporting considerations Accounting and financial reporting considerations of policy change.
- FASB introduces disaggregated income statement expense disclosures DISE disclosures under ASU 2024-03.
- Implementing the new revenue guidance in the technology industry ASC 606 for the technology industry.
- Leases: navigating the guidance in ASC 842 Comprehensive guide to ASC 842.
- Navigating the guidance in ASC 718, share-based payments Comprehensive guide to ASC 718.
- Revenue from contracts with customers: navigating ASC 606 and ASC 340-40 Comprehensive guide to ASC 606 and ASC 340-40.
- Sales and transfers of nonfinancial assets: applying ASC 610-20 Guide to ASC 610-20.
RSM
- A guide to accounting for derivatives and hedge accounting Guide on ASC 815.
- A guide to lease accounting Guide on ASC 842.
- A guide to lessee accounting under ASC 842 Lessee accounting under ASC 842.
- A guide to revenue recognition Guide on ASC 606.
- Accounting for income taxes: current and deferred taxes Current and deferred taxes under ASC 740.
- Early lease terminations, reduced payments and subleases Lease modification scenarios under ASC 842.
- Financial reporting implications of tariffs Accounting brief on the financial reporting implications of tariffs.
- Leases: overview of ASC 842 Overview of ASC 842.
- Lessee accounting for tenant improvement allowances Tenant improvement allowances under ASC 842.
- Lessor accounting under ASC 842 Lessor accounting under ASC 842.
- Revenue recognition considerations for consumer products ASC 606 for consumer products.
- Revenue recognition considerations for financial institutions ASC 606 for financial institutions.
- Revenue recognition considerations for not-for-profit organizations ASC 606 for not-for-profit organizations.
- Revenue recognition for business and professional services ASC 606 for business and professional services.
- Revenue recognition for federal government contractors ASC 606 for federal government contractors.
- Revenue recognition for industrial entities ASC 606 for industrial entities.
- Revenue recognition in the life sciences industry ASC 606 for life sciences.
- Revenue recognition: overview of ASC 606 Overview of ASC 606.
- US GAAP to IFRS comparisons Comparison of US GAAP and IFRS.
Newsletters & Blogs
6- Accounting Accidentally Ken Boyd, author of several "For Dummies" accounting titles, explains core accounting concepts and the CPA exam for students and professionals.
- Deep Quarry Olga Usvyatsky uses data to uncover trends in financial disclosure and reporting, from SEC comment letters to restatement red flags.
- The Dig Investigative journalist Francine McKenna digs into accounting, auditing, and governance issues at public and pre-IPO companies.
- FinAcco Insights Technical accounting articles on revenue, leases, financial instruments, crypto, and valuation from a specialist advisory firm.
- GAAPSavvy Angela Liu's field-notes newsletter on what is actually happening on the ground in corporate accounting, including revenue recognition and the accounting/AI intersection.
- TechAccountingPro Practical US GAAP research and solutions with a focus on digital-asset and crypto accounting, presentation, and audit readiness.
Profession, Practice & Careers
2- Ambition, Aligned Devon Coombs (CPA, formerly Deloitte and Google Cloud) on AI strategy, finance leadership, and purpose-driven careers for finance professionals.
- Jason Staats CPA Jason Staats on running modern accounting firms, covering practice management, accounting technology, and AI tooling.
Data
1- Estimated Normal Useful Life Study by ASA β Machinery & Technical Specialties Committee Estimated Normal Useful Lives for Machinery and Equipment