The average annual cost for these services for a small business can vary depending on several factors. Here is a breakdown of the factors that can influence the cost:

1. Business Size: The size of the small business, such as the number of transactions, employees, and revenue, can impact the cost of accounting and bookkeeping services. Larger businesses with more complex financials may incur higher costs.

2. Scope of Services: The specific accounting and bookkeeping services required by the small business will also affect the cost. This may include basic bookkeeping, financial statement preparation, tax planning, payroll processing, and more.

3. Frequency of Services: The frequency at which the accounting and bookkeeping services are provided can impact the cost. Some businesses may opt for monthly services, while others may require quarterly or annual services.

4. Level of Expertise: The expertise and experience of the accounting professionals offering the services can influence the cost. Certified public accountants (CPAs) typically charge higher fees than non-certified professionals.

5. Software and Technology: The use of accounting software and technology for bookkeeping can affect the cost. Some businesses may choose to invest in advanced software for their accounting needs, which can impact the overall cost of services.

6. Additional Services: If the small business requires additional services such as financial consulting, budgeting, or audit support, this can add to the overall cost of accounting and bookkeeping services.

7. Industry and Regulations: The industry in which the small business operates and the specific regulatory requirements it needs to comply with can also impact the cost of accounting and bookkeeping services.

In conclusion, the average annual cost for accounting and bookkeeping services for a small business can range from a few hundred to several thousand dollars, depending on the factors mentioned above. It is recommended for small business owners to consult with accounting professionals to get a customized quote based on their specific needs.