The decision comes down to volume, cost, and what you actually need done. Most small businesses don’t generate enough bookkeeping work to keep someone busy full-time, which means you’re paying for capacity you won’t use.

An in-house bookkeeper in San Diego typically costs $50,000 to $70,000 in salary. Add payroll taxes, benefits, software subscriptions, training, and management time, and you’re looking at $65,000 to $90,000 per year in total cost. For that investment, you get someone dedicated who knows your operations intimately. The downside is you’re limited to one person’s knowledge and availability. When they’re sick, on vacation, or quit without notice, you have no bookkeeping.

Outsourcing monthly bookkeeping typically runs $300 to $1,500 per month for small businesses, depending on transaction volume and service scope. That’s $3,600 to $18,000 per year. You lose the in-house presence, but you gain a team with broader expertise and systems designed for consistency. Someone is always available to handle your books even if one person is out.

The break-even point usually comes when a business needs 30 or more hours per week of bookkeeping work. Below that threshold, outsourcing almost always makes more financial sense. Above it, you might need the in-house capacity.

Think about what you actually need done. If it’s transaction categorization, reconciliations, and monthly financial statements, outsourcing handles that efficiently. If you need someone processing payroll, managing bills and invoices daily, handling office administration, and doing bookkeeping, you might need a person on site. In that case you’re really hiring an office manager who also does bookkeeping.

There’s also the expertise question. A small business bookkeeper who works with dozens of clients has seen more scenarios, caught more errors, and solved more problems than someone who only works with your books. That broader experience often translates to better financial management and fewer mistakes.

Many businesses start with outsourcing and reconsider as they grow. Most find that outsourcing continues to make sense even at higher volumes because the expertise and reliability exceed what a single in-house hire can provide. The exception is when bookkeeping is just one piece of a larger role you need filled on site.