When people talk about "the unemployment rate," they're almost always referring to a single headline number. But the U.S. Bureau of Labor Statistics publishes six different measures of labor underutilization — labeled U1 through U6. The U6 unemployment rate is the broadest of these, and it captures a much wider slice of economic distress than the number that typically makes the news.
Understanding U6 doesn't change how unemployment insurance works or who qualifies for benefits. But it does explain why the official unemployment rate often feels disconnected from what people actually experience in the labor market.
The BLS produces its labor underutilization measures monthly through the Current Population Survey, a household survey covering tens of thousands of U.S. households. Each measure builds on the previous one, capturing progressively broader categories of workers who aren't fully employed.
| Measure | What It Counts |
|---|---|
| U1 | People unemployed 15 weeks or longer |
| U2 | Job losers and people who completed temporary jobs |
| U3 | The "official" unemployment rate — unemployed people actively seeking work |
| U4 | U3 + discouraged workers who have stopped looking |
| U5 | U4 + marginally attached workers (want work but haven't searched recently) |
| U6 | U5 + part-time workers who want full-time work |
The U3 rate is what gets reported in headlines. The U6 rate is consistently higher — often several percentage points higher — because it includes groups that U3 ignores entirely.
U6 has three components layered together:
1. The officially unemployed (U3) People who are jobless, available to work, and have actively looked for a job in the past four weeks. This is the core of the standard unemployment rate.
2. Marginally attached workers People who want a job and have looked for work in the past year, but not in the past four weeks. This group includes discouraged workers — people who have given up searching because they believe no jobs are available for them — as well as others who've paused their search for reasons like family obligations or illness.
3. Part-time workers for economic reasons Sometimes called the underemployed, this group includes people working part-time hours who would prefer full-time work but can't find it. They are employed by the standard definition, so U3 doesn't count them at all — but U6 does.
Because U6 casts a wider net, it always produces a larger number. During periods of strong economic growth, the gap between U3 and U6 narrows — discouraged workers re-enter the job market, and employers expand part-time workers to full-time hours. During recessions, the gap widens dramatically.
For example, at the peak of the 2008–2009 financial crisis, the U3 rate reached around 10%, while the U6 rate climbed close to 17%. In strong labor markets, U3 might sit around 3–4% while U6 hovers around 7–8%. The spread between the two tells you something meaningful about the depth of hidden joblessness in any given period.
Here's the distinction that matters most for anyone filing or considering an unemployment insurance claim: U6 is a statistical measure, not a program.
Unemployment insurance is a separate system entirely. UI is administered by individual states under a federal framework, funded through employer payroll taxes, and governed by each state's eligibility rules. Whether someone qualifies for benefits depends on their base period wages, their reason for separation, and whether they meet their state's ongoing requirements — not on which BLS category they fall into.
Importantly, several groups counted in U6 typically do not qualify for standard unemployment insurance benefits:
This doesn't mean those workers have no options — some states have specific provisions for partial unemployment or work-sharing programs. But the BLS's definition of "underemployed" and a state agency's definition of "eligible for benefits" are not the same thing.
The U6 rate matters beyond statistics because it signals slack in the labor market — how much untapped or underutilized labor capacity exists. A falling U6 rate suggests that employers are not only hiring the unemployed but also pulling discouraged workers back into the market and converting part-time positions to full-time. A rising U6 rate can be an early warning that the headline unemployment figure is understating economic stress. 🔍
It also shapes policy conversations. Periods of elevated U6 have historically influenced decisions about extended unemployment benefit programs at the federal level, work-sharing legislation, and labor market support measures — though the specific programs available to workers at any given time depend on what Congress has authorized and what individual states have implemented.
U6 provides a more complete picture of labor market health than U3. But it's a macro-level measurement — it describes populations, not individual eligibility.
Whether someone counted in the U6 figure actually qualifies for unemployment insurance, partial benefits, or any other support depends entirely on the rules of the state where they worked, the specifics of their employment history, why and how their work situation changed, and how their state agency interprets their circumstances. The BLS doesn't make those determinations — state agencies do, claim by claim.