Enum Form8949Box 

pub enum Form8949Box {
    C,
    F,
    I,
    L,
}

The Form 8949 “box” (the reporting category). We only ever emit the conservative “not reported to the IRS” default, YEAR-AWARE:

• pre-TY2025 digital-asset sales used the securities boxes → C (ST) / F (LT), “not reported on a 1099-B”.
• TY2025+ the 2025 Form 8949 added digital-asset-specific boxes and the i8949 states “Do not use box C to report digital asset transactions. Use box I” / “Do not use box F… Use box L” → I (ST) / L (LT), “not reported on a 1099-DA”.

We NEVER auto-assign the 1099-reported boxes (A/B/D/E pre-2025; G/H/J/K from 2025): the model carries no 1099-B / 1099-DA signal (D4), and asserting a broker form was issued / basis reported would fabricate an unsubstantiated box. The box_needs_review flag surfaces exchange dispositions that MAY carry a broker form, to be reclassified on the actual return (G/H or J/K from 2025).

Variants

C

Box C — short-term, not reported on a 1099-B (pre-TY2025 digital-asset default).

F

Box F — long-term, not reported on a 1099-B (pre-TY2025 digital-asset default).

I

Box I — short-term digital-asset sale NOT reported on a 1099-DA (TY2025+ default).

L

Box L — long-term digital-asset sale NOT reported on a 1099-DA (TY2025+ default).

Trait Implementations

impl Clone for Form8949Box

fn clone(&self) -> Form8949Box

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Form8949Box

impl Debug for Form8949Box

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Form8949Box

impl PartialEq for Form8949Box

fn eq(&self, other: &Form8949Box) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Form8949Box