09/02/2026
In cases we've seen, bad bookkeeping at a $1-2M service business typically costs $12,000 to $22,000 in a year where nothing went catastrophically wrong. The damage usually shows up 10 to 14 months after it started.
For South Sound businesses, Washington's B&O tax adds its own wrinkle: it's due quarterly on gross receipts, and a bookkeeper who isn't familiar with WA filing requirements can leave you with penalties you weren't expecting.
The 12-month breakdown is in our latest article:
https://caroandassociates.com/learning-center/posts/what-a-bad-bookkeeper-actually-costs-a-12-month-autopsy/
When did you last check that your B&O filings are current?
One year of bad bookkeeping at a $1.5M service business costs $12,000 to $22,000 in cleanup fees, B&O penalties, and added tax liability. Here is where it comes from.