The average cost of bookkeeping services for auto mechanics may differ based on various factors. These factors can include the geographical location of the auto repair shop, the complexity of financial transactions, the size of the business, and the specific services required. Generally, auto mechanics can anticipate spending between $95 to $399 per month for professional bookkeeping services. However, it is essential for auto mechanics to obtain quotes from different service providers and assess the level of expertise and tailored solutions offered to find the best fit for their bookkeeping needs and budget.