If you cannot repay the loan within 6 months it will be treated as a withdrawal. Fortunately, you are over age 59-1/2 and so will avoid the 10 percent penalty for “early withdrawals”. But the amount will be included in your income for 2019 — and you will owe taxes on it. Be sure to save enough money to pay them when this year’s return is due next April. And if it is a significant amount, you might want to consult a CPA about making a quarterly estimated payment to avoid any potential penalties for under withholding.