Retainer Billing
Retainer billing is a business model where clients pay a recurring fee, typically monthly or quarterly, to secure ongoing access to services or expertise from a provider, such as a developer or agency. It provides predictable revenue for service providers and ensures clients have dedicated support or development capacity without the need for separate project contracts. This model is common in consulting, software maintenance, and managed services.
Developers should learn retainer billing when working in freelance, consulting, or agency roles to establish stable income streams and build long-term client relationships. It's particularly useful for ongoing maintenance, support, bug fixes, or small iterative improvements where work volume varies, as it avoids the overhead of negotiating individual projects. This model helps in budgeting and resource planning for both parties.