About Uncirculated (AU)
About Uncirculated (AU) is a banknote condition grade describing a note that has seen minimal handling while retaining nearly all of its original structure, crispness, and visual presence.
It represents the narrow threshold between untouched preservation and the very first signs of circulation.
How It Appears
An About Uncirculated banknote typically shows only slight evidence of handling, most often limited to one or two light folds or soft bends.
The paper remains firm and largely crisp, with strong structural tension still intact. It has not yet developed the softness associated with circulated notes.
Corners are generally sharp, though they may show minimal rounding. The surface remains clean, with only faint handling traces visible under close inspection.
A common source of AU characteristics is light handling during counting or packaging, often referred to as teller handling. This may result in soft bends, counting flicks, or subtle pressure lines that do not break the paper structure.
The overall appearance remains highly attractive. Colors are vivid, details are sharp, and the note retains most of its original visual impact.
A key diagnostic feature is restraint: any sign of handling must be minimal, controlled, and not structurally disruptive.
Functional Role
The AU grade defines the boundary between fully uncirculated banknotes and those that have entered visible circulation.
It typically corresponds to grades just below the uncirculated range on the 70-point scale, most commonly around 50 to 58.
In grading practice, AU notes usually exhibit either a single stronger fold, often a central wallet fold, or a small number of light folds. These folds must remain minimal, non-disruptive, and should not develop into heavy intersecting creases.
If multiple strong folds or clear structural fatigue are present, the note generally falls into the Extremely Fine (XF) category.
Functionally, AU serves as a transitional classification, marking the final stage before a banknote leaves the uncirculated spectrum while still retaining most of its original structure and presence.
Why It Matters to Collectors
For collectors, AU represents opportunity — but also risk.
Visually, AU notes can appear nearly identical to Uncirculated examples. However, even a single fold or structural break places the note outside the UNC category, often resulting in a meaningful difference in market value.
This makes AU one of the most sensitive and frequently misinterpreted grades.
In the market, high-end About Uncirculated notes, particularly those graded around AU 58, are often informally referred to by collectors as a “heartbreaker” grade. These notes can appear virtually indistinguishable from Gem Uncirculated examples at first glance, yet a single faint fold or corner bend is enough to separate them from the UNC category and significantly reduce their value.
A critical factor is originality. Some notes are artificially improved through pressing or flattening to reduce the visibility of folds. While this may enhance appearance, it alters the natural structure of the paper.
Experienced collectors distinguish between natural AU notes and processed examples by examining paper tension, surface integrity, and light response.
An original AU note retains its natural character, with minimal but honest signs of handling. This distinction is essential for accurate grading and long-term value.
About Uncirculated vs Uncirculated (UNC)
The difference between AU and UNC lies in the presence of any handling.
UNC shows no folds, no bends, and no structural disturbance.
AU shows minimal handling, typically one or two light folds or bends.
A simple distinction:
UNC is untouched,
AU is almost untouched.
Related Terms
- Uncirculated (UNC)
- Extremely Fine (XF)
- Very Fine (VF)
- Condition Grading
- Banknote Preservation
Frequently Asked Questions
What does About Uncirculated (AU) mean?
It refers to a banknote with minimal signs of handling that remains very close to uncirculated condition.
How many folds are allowed in AU condition?
Typically one or two light folds or soft bends that do not significantly affect the structure.
Can an AU note look like UNC?
Yes, many AU notes appear nearly identical to UNC at first glance.
What is the biggest risk when buying AU notes?
Confusing naturally preserved notes with pressed or artificially improved examples.
Is AU a good condition for collecting?
Yes. It offers strong visual quality and is often a more accessible alternative to UNC.