How Much Does a Bookkeeper Cost in Missouri? (2026 Straight Answers)

Ask this question in a local Facebook group and you’ll get answers from “my niece does it for $15 an hour” to “our firm charges $900 a month.” Both are real. Neither tells you what you should pay. Here are the honest numbers, from someone who sets them for a living.

The short version

For a typical small business in this part of Missouri — a trades crew, a shop, a restaurant, a farm operation — professional monthly bookkeeping runs $250 to $850 a month at flat rates, depending on volume and complexity. One-time cleanup projects run from a few hundred dollars for a light quarter to a few thousand for a multi-year rebuild.

The three ways bookkeepers charge

Hourly ($30–90/hr). Freelancers commonly land between $35 and $55 an hour; certified, experienced bookkeepers charge more. Hourly sounds cheap and safe, but it punishes you for asking questions and rewards slow work. Most of the profession is moving away from it — I don’t bill hourly for ongoing work at all.

Flat monthly ($250–1,500/mo). The national sweet spot for small businesses is $250–500 a month, which is exactly where my plans start. You know the number before the month begins. Firms serving bigger or more complex businesses ($500K–2M revenue, payroll, lots of accounts) run $1,000–2,500.

Percentage benchmark. A useful sanity check: bookkeeping typically costs 1–3% of annual revenue. A business doing $300,000 a year paying $350/month is at 1.4% — right in the healthy zone.

What about the cheap options?

National online services advertise $150–300 a month. Some are fine. But read what’s included: many are offshore teams or software-with-a-human-glance, you’ll never meet your bookkeeper, and “cleanup” costs extra the moment your books aren’t tidy. There’s also the option everyone actually uses — doing it yourself at 10 p.m. Run your hours through the DIY cost calculator before calling that one free.

What cleanup costs

If you’re behind, cleanup is priced by how far behind:

• 1–3 months behind: roughly $300–500
• 4–6 months: $500–1,500
• 7–12 months: $1,500–3,500
• Multiple years: $3,500 and up

Rule of thumb: a month of cleanup costs two to four times a month of ongoing service — which is the strongest financial argument for never getting behind again.

What drives your price up or down

Transaction volume, number of bank and credit card accounts, whether you need invoicing and bill pay handled, payroll coordination, and how tangled personal and business spending are. What doesn’t change the price at Jema: asking questions. Flat means flat.

The Lincoln County angle

Around Troy, Wentzville, and O’Fallon, your realistic alternatives are CPA and tax firms — excellent at taxes, but their bookkeeping is often junior staff work billed at firm rates, frequently $600+ a month for what a dedicated bookkeeper does for less than half that. Keep your CPA for taxes. Pay bookkeeper prices for bookkeeping.

Want your exact number instead of a range? The Books Checkup is free — thirty minutes, honest assessment, flat quote. This article is general information, not tax or financial advice for your specific situation.