How much should monthly bookkeeping cost a small business in 2026?

Monthly bookkeeping for a simple small business, with one or two accounts and a manageable number of transactions, can start around $150 a month from a bookkeeping service; that's where ZeraBooks starts. The quote goes up with the work: more accounts to reconcile, more transactions, platform payouts to gross up, payroll, inventory and how often you want reports. It shouldn't go up because of your revenue alone, your industry label or the word "AI". Catch-up work for months already behind is a separate, one-off price.

Here's how to read a bookkeeping quote, and how to sanity-check one.

What actually drives the monthly price?

Think in units of work, not in business size. Each of these adds real time every month:

Driver	Why it adds work
Number of bank and card accounts	Each one is reconciled to its own statement every month
Transactions per month	Each line is recorded and categorized; this grows with volume, not revenue
Platform payouts	Each Shopify, Amazon, Stripe or Etsy payout is grossed up into sales, fees and refunds through a clearing account
Payroll	Entries from the payroll provider's report on every pay run
Inventory	A month-end cost of goods sold entry from your count, and a question when the count looks off
Bills and invoices to track	Recording what you owe and what you're owed
Report frequency	A monthly close is more work than a quarterly one
Loans and equipment	Splitting principal from interest, and depreciation entries

What shouldn't push the price up?

Revenue on its own. A consultancy doing $900,000 on a dozen invoices a month has less bookkeeping than a café doing a third of that through hundreds of card settlements. A quote that scales with revenue alone is pricing your success, not your books.

The industry name. Some industries do add work, like payouts for online stores or commission statements for real estate agents. Those show up in the table above. The word "restaurant" or "contractor" on the intake form shouldn't, on its own.

Tooling. Whether the bookkeeper uses AI to categorize faster is their cost to manage. You're buying reconciled books and on-time reports.

Questions. A good bookkeeper asks you about the transactions the documents can't explain. That's part of the job, not an extra.

What about books that are already behind?

That's catch-up, and it should be quoted separately, once. It's the same work as monthly bookkeeping done for many months at a time: every statement gathered, every month recorded, every account reconciled until it ties. A good quote says which months are included and what happens if a statement turns out to be missing.

Watch for a monthly fee that quietly assumes the books are current when they aren't. You'll either pay for the catch-up later or end up with months that never tie.

How does a service compare with hiring?

The Bureau of Labor Statistics puts the May 2025 median wage for bookkeeping, accounting and auditing clerks at $24.36 an hour, or $50,670 a year. A part-timer at that median for eight hours a month costs 8 × $24.36 = $194.88 in wages, before payroll taxes, software, and the time you spend managing them and covering their holidays.

That's the comparison worth making. A service that costs less than a part-timer's wage for the same hours, delivers reconciled months and doesn't take a holiday in March is usually the better buy for a small business. Once the work fills most of a week, an in-house bookkeeper starts to make sense.

For the long version, with one fictional business priced as a hire, a freelancer, a service and software, see our guide to how much a bookkeeper costs.

How do you compare two quotes?

Ask each provider the same questions:

1. Which accounts are included, by name?
2. Is each account reconciled to its statement every month, and can I see that?
3. Which reports do I get, and how often?
4. Is catch-up included, quoted separately or not done at all?
5. What happens to the price if my transactions double next year?

The answer to question 2 matters most. A month that hasn't been matched to the bank isn't finished, however neat the reports look.

What ZeraBooks charges

Disclosure: I'm Damin and I run ZeraBooks, so weigh this part accordingly. Our bookkeeping services start at $150 a month (USD), for businesses anywhere in the world. The exact monthly price depends on your accounts, transaction volume and reporting needs, and it's agreed after a free call, before any work starts. Catch-up and cleanup are quoted on their own. Every account is matched to its statement before a month is signed off, you get a read-only login to watch the work, and reports arrive on the schedule you choose. If you'd rather keep the books yourself, the same software is $79 a month billed annually.

Whatever you're quoted, ask what the price is measuring. If the answer is your revenue, ask again.