Thumbtack operates on a flexible, pay-per-lead marketing model for service professionals rather than charging a flat monthly subscription fee. Contractors buy virtual credits or budget allocations, and funds are automatically deducted whenever a prospective customer reaches out, submits a project inquiry, or schedules a service call. The specific cost per lead varies widely depending on the trade category, project size, and local market competition. For consumers seeking home services, browsing the platform and requesting quotes from local professionals is completely free of charge.