A start date, an end date, and a finished, deployed product with auth, payments, email, and a clean handoff. If it isn't done, you don't pay the balance.
Four production SaaS products I designed, built, deployed, and operate myself, all in regulated compliance space where a wrong detail is a legal problem, not a bug. If I can ship these alone, I can ship your customer portal, internal tool, marketplace, or dashboard.
Fixed price, start date, end date, deployed and handed off. Three tiers from $4,500. Scope locked in writing before the deposit.