BOISE, Idaho—Idaho General Fund revenue exceeded the state’s forecast by $90.3 million during the first quarter of fiscal year 2027, finishing 6.8% above projections.
September revenue alone came in $39 million above forecast, with individual income tax collections accounting for much of the strength.
Individual income tax revenue is running 18.3% above forecast year to date, driven in part by a sharp increase in withholding collections.
Withholding revenue grew 20% during the first quarter compared with the same period last year, up from growth of 2.8% in fiscal 2026 and 5.9% in fiscal 2025.
Gov. Brad Little said the results reflect continued strength in Idaho’s economy but cautioned that the state should remain disciplined in its spending.
Sales tax collections totaled $215.1 million in September, bringing year-to-date collections to $617.4 million. Online marketplace sales were particularly strong, increasing 23.4% during the first quarter compared with a year earlier.
Revenue performance was not uniformly positive. Corporate income tax collections were $10.2 million, or 7.9%, below forecast, while sales tax collections were also slightly below forecast year to date.
State officials said they will continue monitoring revenue trends and economic conditions as the fiscal year progresses.
The report comes as Idaho continues to balance ongoing spending commitments with priorities including public schools, transportation, infrastructure and public safety.
The September report is the final monthly revenue update scheduled before the Nov. 2 election.