The cost of waiting is real too: carrying costs continue every month you are not listed, and a home that is ready to show now loses nothing by going to market in winter to a smaller but often more motivated buyer pool.
If your reason for selling has a deadline, whether a relocation, a health change or an estate to settle, waiting for a season that suits the calendar rather than your actual timeline can cost more than any spring advantage would gain.
The right answer depends on your home's readiness and your own timeline, not a general rule about the season. Get your hand-reviewed valuation from Joel Dyck.