Can I negotiate to pay off a vendor take-back note early without penalty?

Yes, and whether early repayment is allowed, and whether it triggers any penalty, is entirely a matter of what the note itself says, since nothing in Ontario law requires a vendor take-back note to either permit or prohibit penalty-free prepayment. Some notes are drafted as "open," allowing the buyer to repay some or all of the balance early without any additional charge, while others include a prepayment penalty designed to protect the seller's expected return over the life of the note.

Because this term is set entirely by negotiation at the time of the sale, a buyer who anticipates refinancing, selling, or otherwise wanting to pay out the note ahead of schedule should raise this specifically when the vendor take-back terms are first being negotiated, rather than assuming it can be added later once the seller has less incentive to agree. A seller, for their part, may prefer to preserve some prepayment protection given that a vendor take-back is often providing a return the seller was counting on over its full term. This is a genuinely open point in every deal, not a standard feature either way.