IHSC Treas 310 indicates a deposit related to the Internal Revenue Service (IRS) and typically refers to a payment from the U.S. Treasury, often for tax refunds or other federal payments. The "310" code specifically signifies that it is a direct deposit transaction. If you see this on your bank account, it usually means you have received funds from the IRS, such as a tax refund or stimulus payment. Always check your IRS account or relevant documentation for details regarding the specific payment.