The minimum HBP repayment will be reported as income on Line 129 (RRSP income). Use the "RRSP" tab > "RRSP Profile" and select Home Buyers Plan repayment. Continue until you reach that screen. Provide the current balance of your HBP, the minimum repayment required and leave the other amounts blank. The correct income will transpose to your tax return and CRA will update your HBP balance going forward.