Using direct deposit is faster than waiting for your check in the mail, the IRS said, and it also enables you to save time transferring accounts where you want your money to go.
It also means no one will steal your check out of your mailbox or find itself lost en route.
To tell the IRS how you want the refund divided, use Form 8888. The form asks you to list account numbers, bank routing numbers and totals.
The form can also be used to invest in U.S. Savings Bonds.
"Your refund should only be deposited directly into accounts that are in your own name, your spouse’s name or both if it’s a joint account," the IRS said.
"You can buy U.S. Series I Savings Bonds with a portion or all of your tax refund for yourself or anyone," the IRS said. "Issued by the Department of the Treasury, Series I bonds are low-risk bonds that grow in value for up to 30 years. While you own them they earn interest and protect you from inflation."