Most small businesses pay between $200 and $600 per month for outsourced bookkeeping. A straightforward service business with one bank account and a credit card sits at the lower end. A contractor tracking job costs across multiple projects or a restaurant with high transaction volume and tip reporting will land higher. The biggest driver of cost is the number of transactions flowing through your accounts each month.

Transaction volume is the primary factor because more transactions mean more time spent categorizing, reconciling, and reviewing. A consultant with 30 transactions a month takes far less work than a retail shop processing hundreds of sales daily. Multiple bank accounts, credit cards, and payment platforms like Stripe or Square all add reconciliation work that increases the monthly price.

Industry complexity matters too. Some businesses need more than basic categorization and bank reconciliation. Construction companies need costs tracked by project. E-commerce sellers deal with sales tax across multiple states. Real estate investors need books organized by property. These specialized needs require more expertise and more time, which pushes the cost up compared to a standard full-service bookkeeping engagement.

What’s included in the price also varies. At a minimum, you should expect transaction categorization, bank and credit card reconciliation, and monthly financial statements. Some providers bundle in accounts payable, accounts receivable tracking, or 1099 preparation. Others charge separately for those. Payroll is almost always an additional cost. Tax preparation is separate from bookkeeping entirely, so plan for that as its own line item.

Compare this to the alternatives. Hiring a part-time bookkeeper in the Phoenix area costs $20 to $30 per hour, and you’re responsible for managing them, providing software, and verifying their work. A full-time in-house bookkeeper runs $45,000 to $55,000 annually with benefits. DIY bookkeeping saves money on paper, but most business owners spend 8 to 15 hours a month on it and still end up with errors that cost more to fix later.

The cheapest provider isn’t always the smartest choice. If your bookkeeper doesn’t understand your business, you get financial statements that are technically reconciled but don’t tell you anything useful. You want someone who can explain what the numbers mean, not just make them balance. A good small business accounting firm gives you accurate books, clean reports your tax accountant can work with, and insight into how your business is actually performing.

When evaluating cost, think about what inaccurate or late books actually cost you. Missed deductions, tax penalties, poor cash flow decisions, and hours spent trying to sort it out yourself all have a price. Outsourced bookkeeping pays for itself when it gives you the confidence to make decisions based on numbers you trust.