NAICS 2027 Update: Timeline, Status, and Business Preparation Guide
NAICS 2027 Update: Timeline, Official Status, and What Businesses Should Watch
The 2027 NAICS revision process is underway, but the final 2027 NAICS classification has not yet been released. This page tracks the official update process, explains what is known as of March 20, 2026, and outlines how businesses, analysts, and data users can prepare for future NAICS changes without relying on unofficial code lists.
2027 NAICS is not final yet
- The NAICS update process is a five-year review managed through OMB and the ECPC.
- The initial solicitation for possible 2027 revision proposals was published in December 2024.
- OMB has stated that the updated 2027 NAICS classification is expected to be published during calendar year 2026, with availability on the Census website in January 2027.
The original tentative schedule changed
- The Census fact sheet showed an original tentative schedule that included an October 2025 ECPC recommendation notice and a March 2026 OMB final decision notice.
- Census later announced that the second Federal Register notice, originally planned for fall 2025, was delayed.
- Because of that delay, businesses should treat this as a live monitoring page rather than a finalized 2027 code reference.
NAICS is an establishment-based classification system
NAICS is used to classify establishments, meaning individual business locations, by type of economic activity. It is designed for statistical purposes and is maintained through a structured review process so the classification can stay relevant as industries evolve.
That matters because many businesses assume NAICS updates happen automatically or all at once across every agency. In practice, the official classification may be published on one schedule, while adoption, mapping, crosswalk use, vendor updates, and internal business record cleanup may happen over time.
2027 NAICS revision timeline
OMB request for possible revisions
OMB published a Federal Register notice requesting comments on possible revisions to portions of NAICS for 2027.
Fact sheet milestones were subject to change
The Census fact sheet listed tentative milestones that included ECPC recommendations in October 2025 and OMB final decisions in March 2026, but that schedule was expressly labeled subject to change.
Second notice delayed
Census announced that the second Federal Register notice, originally planned for fall 2025, was delayed and said ECPC recommendations were expected in early 2026.
Expected publication window
OMB stated that the updated 2027 NAICS classification is expected in calendar year 2026 and that NAICS 2027 will be available on the Census Bureau website in January 2027.
What we can say confidently right now
- The 2027 revision process is active.
- The current public materials emphasize review of potential revisions, not a full unofficial rewrite of every code.
- The official 2027 classification is still expected to be published through the formal OMB and Census process.
What users should avoid assuming
- No final 2027 NAICS code list should be treated as official until it is formally published.
- Businesses should not assume every agency, vendor, lender, or procurement workflow will switch on the same day.
- Unofficial predictions about exact code changes may be incomplete or wrong until the final release appears.
How businesses can prepare for NAICS 2027 now
You do not need to wait for the final 2027 publication to begin preparing. The practical step now is to make sure your current primary NAICS code, supporting business description, and internal classification logic are already well documented under the current framework.
- Confirm your current primary NAICS code still reflects your main revenue-generating or production activity.
- Document your actual business activity in plain language so future code review is faster and more defensible.
- Track where your NAICS code is used today, including registrations, compliance forms, lenders, suppliers, internal data, and marketing databases.
- Prepare for mapping work between current NAICS and future revisions once official 2027 materials are released.
Why NAICS revisions affect more than one page on your site
NAICS changes can affect classification consistency across business listings, data onboarding, research systems, industry reports, vendor files, analytics workflows, and procurement-related records. Even when a business activity does not change, the surrounding reference structure may change.
That is why many organizations need more than a code lookup. They need a documented decision trail that explains why a code is used now, what may change later, and how future updates should be reviewed.
What we will add as official materials are released
- Official notice updates and milestone tracking
- 2022 to 2027 transition notes where applicable
- Business guidance on how to review existing classifications
- Support for businesses that need help validating their current NAICS selection
NAICS 2027 update questions
- Is NAICS 2027 final yet?
No. As of March 20, 2026, the final 2027 NAICS classification has not yet been released on the official Census NAICS site. - Will all NAICS codes change in 2027?
Not necessarily. NAICS revisions review the structure for possible updates, but that does not mean every code changes. - Should a business change its NAICS code now because 2027 is coming?
Usually, the correct move is to verify whether your current code is accurate today and then monitor official 2027 publication materials before making any transition decisions. - Why is there uncertainty in the 2027 schedule?
The Census fact sheet described a tentative schedule, and Census later announced that a planned follow-up notice was delayed. - What should businesses do while waiting for the final 2027 release?
Document current business activity, confirm current primary classification logic, and prepare for future mapping once official 2027 materials are published.