Donors to Idaho's Council for the Deaf and Hard of Hearing may get a new tax break. A committee in the state House has passed a measure to boost the income tax credit for several state agencies including the Council for the Deaf and Hard of Hearing. The governor supports the move. The measure would increase the credit from $100 to $500 for a single filer and from $200 to $1,000 for a couple. The change for companies would be $5000, up from $1,000.