Not provided for or included in the regular federal government budget; funded by sources other than the federal budget; now also with reference to the fiscal policy of other countries.
Origin
1970s; earliest use found in The New York Times.
Definition of off-budget in US English:
off-budget
adjective
US
Not provided for or included in the regular federal government budget; funded by sources other than the federal budget; now also with reference to the fiscal policy of other countries.