Resources and topics in SEC reporting.

Data Quality

Public companies can access free validation rules to find and resolve errors in XBRL filings. The XBRL US Center for Data Quality funds the work of the Data Quality Committee to develop these rules. Issuers are encouraged to use software applications that have been certified to successfully run the most current set of rules. See a list of certified applications.

The DQC recently published a Q&A for issuers pertaining to situations where the SEC test filing system may return warnings for several conditions which should be evaluated to ensure that there are no false positives.  Read the Q&A on SEC Test Filing Warnings.

FAST Act (cover page tagging)

The SEC’s FAST Act Modernization and Simplification of Regulation S-K, requires companies, subject to Inline XBRL compliance, to tag the cover pages of Forms 10-K, 10-Q, 8-K, 20-F and 40-F using Inline XBRL.  Compliance phases in over a three year period, matching the Inline XBRL compliance dates requirement noted above. Read a Q&A about FAST Act requirements.

Inline XBRL

For Operating Companies: The SEC final rule phases in over three years. Large accelerated filers start with their first fiscal period ending on or after June 15, 2019; accelerated filers with their first fiscal period ending on or after June 15, 2020; and all other filers (including foreign private issuers) with their first fiscal period ending on or after June 15, 2021. Regardless of phase, all filers comply beginning with the first 10-Q submitted after the compliance date. Read a Q&A on Inline XBRL requirements based on informal SEC discussions.

For Funds: Fund compliance also phases in over three years but will start later: large fund groups (net assets of $1 billion or more as of the end of their most recent fiscal year) comply two years after the effective date of the amendments; and all other funds comply three years after the effective date of the amendments. The 15 business day filing period for risk/return summary XBRL data is eliminated. Read a Q&A on the rule and implementation based on informal SEC discussions.

Find out what Inline XBRL is and how it impacts stakeholders.

The latest tagged as 'Inline XBRL'


Click on titles below or browse additional resources.

Q&A – Inline XBRL - Page posted July 8, 2019

CFA Institute on XBRL and Audit - News Item posted March 26, 2019

SEC Updates Interactive Data Test Suite - News Item posted February 18, 2019

Education and Tools

To further improve the quality of public company financials, filers and filing agents should get the proper training through XBRL US educational programs, including workshops, the online certificate program and webinars. Become an SEC Filer Member, to gain access to a database of XBRL data for peer analysis, a tool to compare changes in new taxonomy releases, comprehensive validation rules and reduced rates on educational programs. Members can login and use these tools. Public company accountants should also learn about tools and services from XBRL US Members like the samples noted at right.

Legislative and Regulatory

XBRL US actively advocates the use of XBRL to the SEC, other government agencies. Learn more on the Advocacy page.

Current SEC-Accepted Taxonomies

Use the links below to browse approved and supported taxonomies or view the entire collection of XBRL Taxonomies for SEC reporting initially developed in the United States, including superseded versions of US GAAP, Mutual Fund and Credit Rating Agency taxonomies.

XBRL Taxonomy

2019 US GAAP Financial and SEC Reporting Taxonomies

Status: accepted and supported


XBRL Taxonomy

US Mutual Fund Risk/Return Taxonomy, 2018

Status: accepted and supported


XBRL Taxonomy

2018 US GAAP Financial and SEC Reporting Taxonomies

Status: accepted and supported


XBRL Taxonomy

Record of Credit Ratings Taxonomy, 2015

Status: accepted and supported


XBRL Taxonomy

US Mutual Fund Risk/Return Taxonomy, 2012

Status: accepted and supported



Browse all US SEC XBRL Taxonomies || Browse all US XBRL Taxonomies

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