This depends on your daily budget and the type of campaigns you’re running. If you’re running conversion campaigns and spending enough to maximise performance, you could turn a profit on the first day. Most companies run campaigns to generate leads at earlier stages of the consumer journey and nurture them towards conversions. This means there’s a delay between the first ad impression and a purchase. Generally speaking, you should see a profit within the first 1-3 months of running ads on Facebook.