Catch-up bookkeeping is almost always priced as a project rather than a flat monthly fee. That makes the honest answer “it depends,” but there are real factors that determine where your project falls on the cost spectrum.

The biggest driver is how far behind you are. Two or three months of backlog is a very different project than two years. A small service business that’s three months behind with simple transactions might pay a few hundred dollars. A contractor or retail shop that hasn’t touched their books in over a year could be looking at $1,500 to $5,000 or more depending on complexity.

Transaction volume matters just as much as the time period. A business that runs 30 transactions a month is far less work than one running 300. If you have multiple bank accounts, credit cards, and payment processors like Square or Stripe, each one adds reconciliation work. Payroll, sales tax, and subcontractor payments all add layers of complexity that take time to sort through.

The condition of your records has a big impact too. If you have bank and credit card statements readily available and some basic organization, the work goes faster. If your bookkeeper has to chase down statements, sort through shoeboxes of receipts, or figure out what happened with unexplained transfers between accounts, that adds hours to the project. Clean starting materials mean a lower cost.

Another factor is whether there are tax filings tied to the work. If you need catch-up bookkeeping done because you have unfiled tax returns, the urgency and the stakes are higher. Getting the books right matters even more when the numbers flow directly into returns that need to be filed.

Here’s what we typically see. A straightforward cleanup covering a few months for a small business with one bank account and one credit card might run $300 to $800. A full year of backlog for a business with moderate complexity usually falls in the $1,000 to $3,000 range. Multi-year cleanups or businesses with significant volume and complexity can go higher.

The best way to get an accurate number is to have someone look at the actual scope. We assess what’s there, what’s missing, and what needs to happen before quoting a price. That way there aren’t surprises halfway through the project.

One thing worth considering is the cost of not doing it. Messy or nonexistent books mean you’re making decisions without knowing your real numbers. You could be overpaying on taxes, missing deductions, or burning through cash without realizing it. Getting your books current is the foundation for any real financial strategy going forward. The project cost usually pays for itself through what it reveals about your business.