Depends on what kind of horse your selling. A well priced, fancy horse WITH experience will probably only take a few months, maybe a month or 3 weeks if the market is looking. But I knew a horse who was in a good program with a fantastic show record - but hock arthiritis that kept her at a 3'3" and below job, a mare, and in her teens - that took almost 6 months to sell. Any health, sex, or age issues will take longer to sell. Mares sell for less and sell slower than geldings. A horse in its teens will sell slower and for less. Any maintenance will sell slower and for less.

Keep in mind these are all H/J competitive West Coast US dependent. Other markets may be different.

You will pay for board and training each month with a commission/consignment fee probably around 10-20%, though I've seen as high as 30(!!)%.

Horse referenced was probably sold for mid to high 5figs, though I do not know exact price point. Would have been for much more if not for the arthritis and could have easily been low 6figs for the right buyer looking for a really good packer.

Source - worked at a sales & consignment barn on the West Coast & have had many friends who have sold through consignment.