Charles and Marcia are married cash-basis taxpayers. In Year 8, they had interest income as follows (Becker CPA Review Course):
$500 interest on federal income tax refund.
$600 interest on state income tax refund.
$800 interest on federal government obligations.
$1,000 interest on state government obligations.
What amount of interest income is taxable on Charles and Marcia's Year 8 joint income tax return?
$500
$1,100
$1,900
$2,900