This is the sixth time he has been called to assist in investigations. He is expected to be charged at the Kuala Lumpur Sessions Court tomorrow.
Some 20 supporters were seen gathering outside the MACC building before his arrival.
His eldest daughter, Nurulhidayah, has called for friends and family members to gather at the MACC headquarters tonight in a sign of solidarity with the Umno president.
She has also called for another gathering at the Sessions Court tomorrow morning.
Zahid has been questioned by MACC on the alleged abuse of funds at Yayasan Akal Budi four times since July.
He spent nearly 11 hours in questioning during his last session on Friday.
Zahid, who is chairman of his family foundation, said he told MACC in July that RM800,000 had been reimbursed to the foundation two years ago.
He blamed an employee for making a mistake in issuing a cheque from the foundation to pay for his credit card bills, saying he had earlier instructed the employee to prepare the payment from his personal bank account.
He was also questioned that month in relation to another case on an alleged meeting with a member of Saudi Arabia’s royal family in 2015, who is said to have donated money to former prime minister Najib Razak.