Home

IRSdefined

IRSdefined is a term used in tax administration discourse to describe terms that are defined or clarified by the Internal Revenue Service in its guidance materials, forms, notices, and rulings. The term is not an official policy designation, but a conceptual label used by scholars and practitioners to differentiate definitions issued by the IRS from definitions that appear in statutes or court decisions.

Definition and scope: IRSdefined terms are those for which the IRS provides explicit meanings in instructions,

Relation to statute and regulation: IRSdefined definitions are not substitutions for statutory terms; they function to

Impact and controversy: Supporters argue that IRSdefined guidance provides clarity, consistency, and efficient administration. Critics caution

See also: Tax law, Internal Revenue Service, Administrative law, Guidance and rulings.

publications,
or
regulatory
guidance
to
ensure
consistent
administration
and
compliance.
These
definitions
can
shape
how
taxpayers
complete
forms,
determine
eligibility
for
credits
or
deductions,
or
interpret
procedural
requirements
within
the
IRS
framework.
While
rooted
in
administrative
guidance,
such
definitions
operate
alongside
statutory
text
and
judicial
interpretations,
and
they
may
be
revised
through
updates
to
publications,
revenue
rulings,
or
notices.
interpret,
implement,
or
clarify
statute
within
the
agency’s
administrative
reach.
They
can
affect
practical
compliance
and
filing
requirements,
and
taxpayers
may
rely
on
them
for
ongoing
administrative
processes.
However,
they
remain
potentially
subject
to
statutory
changes,
regulatory
updates,
or
court
review,
which
can
alter
or
supersede
prior
definitions.
that
reliance
on
agency-defined
terms
may
introduce
interpretive
variability
or
administrative
drift,
and
they
emphasize
the
need
for
transparent
rulemaking
and
clear
limits
on
how
definitions
can
evolve
over
time.