Small businesses have several options for budgeting and forecasting, such as incremental, zero-based, rolling, and scenario methods. Incremental budgeting adjusts the previous year's budget or actual results for inflation, growth, or other factors. Zero-based budgeting requires you to justify every expense and revenue item based on your goals and priorities. Rolling budgets update regularly, usually monthly or quarterly. Scenario budgets create multiple budgets or forecasts based on different assumptions and scenarios. When selecting a method, you should consider your business size, complexity, and industry, as well as the time and resources needed to implement and maintain it.