Selling a home with a mortgage still on it is completely normal, the vast majority of sales work this way. But there are a few moving pieces worth understanding before you list: how the payout actually happens, when a penalty applies, and how to avoid one if you're buying again right away.
How the Payout Works on Closing
You don't personally wire anything to your lender. On closing day, your real estate lawyer receives the sale proceeds, pays out your remaining mortgage balance (plus any accrued interest) directly to your lender, pays any real estate commissions and closing costs, and sends you whatever equity is left. It's all handled in the same transaction, you never have to coordinate the payout yourself.
When a Prepayment Penalty Applies
This is the part that catches people off guard. If you're selling mid-term, before your mortgage's maturity date, most lenders charge a prepayment penalty for paying it off early:
- Fixed-rate mortgages: typically the greater of three months' interest or an Interest Rate Differential (IRD) calculation, which can be substantial if rates have dropped since you locked in.
- Variable-rate mortgages: usually a flat three months' interest, generally the smaller penalty of the two.
If you're selling at or after your maturity date, there's no penalty at all, you're simply not renewing, same as at any other renewal.
How Porting Can Avoid the Penalty
If you're selling and buying again around the same time, porting your existing mortgage to the new property can let you keep your current rate and term, and avoid the prepayment penalty entirely, provided the timing lines up (most lenders require the new purchase to close within a set window, often 30–120 days, of your sale) and the new property qualifies. If your new mortgage amount is larger, the extra is usually blended with your existing rate rather than penalized.
This only works within the same lender, if you're also planning to switch lenders, porting isn't available, and the penalty math above applies instead.
Before You List
- Ask your lender for a payout statement, it shows your exact penalty (if any) as of a given date, so there are no surprises at closing.
- Confirm your discharge fee, a smaller, separate administrative charge (often $200–$400) that applies regardless of timing.
Buying and Selling at the Same Time?
If your sale and purchase don't close on the exact same day, which is common, bridge financing can cover the gap, letting you use the equity from your sale before those funds officially land. It's short-term and interest is calculated daily, but it removes the pressure of trying to perfectly align two closing dates.
What If You're Not Buying Again Right Away?
If you're selling and not porting into a new purchase, your mortgage is simply paid out and closed on your sale date. There's nothing further to manage, your lender relationship ends with that property.