What's the difference between a bookkeeper and a CPA for 1099 contractors?

Cadence is the largest practical difference. Bookkeeping is a monthly recurring activity: every transaction gets categorized, every account gets reconciled, and a P&L gets produced 12 times per year. Tax preparation is an annual event: the return gets filed once. Tax planning sits between them, ideally happening throughout the year but driven by quarterly review rather than monthly close.

Skill set is the second difference. A bookkeeper needs precision, attention to detail, and fluency in chart-of-accounts conventions and software like QuickBooks Online or Xero. A CPA or EA needs deep knowledge of tax law (current-year rates, brackets, deductions, credits, election deadlines, audit triggers) and the ability to translate accounting records into IRS-compliant returns. The Venn diagram overlaps but is far from a circle.

Cost reflects scope. A standalone bookkeeper for a 1099 contractor at $150K to $200K runs $300 to $500 per month, or $3,600 to $6,000 per year. A standalone CPA for the same person charges $1,500 to $3,000 for the annual return plus quarterly estimate calculations. Together, that is $5,100 to $9,000 per year through separate firms. Integrated firms (one provider handling both) typically charge less than the sum because they eliminate the data handoff cost between two parties.

What goes wrong with separation. When a bookkeeper and a CPA work at different firms, the CPA receives the books in February or March, finds issues that need cleanup, and bills cleanup hours at $150 to $250. Categorization mismatches, missing receipts, unreconciled accounts: these all become billable rework rather than monthly maintenance. The hidden cost lands in March, often $300 to $800 per year.

When you actually need only one. A side-gig consultant earning $20,000 per year of supplemental income with simple expense patterns may not need a dedicated bookkeeper at all. A spreadsheet plus a CPA at tax time can work. Conversely, a meticulous full-time consultant whose books are clean, S-corp is mature, and tax situation is stable can sometimes file their own return using software, retaining only a bookkeeper. These are exceptions; the typical 1099 contractor at $100K-plus benefits from both functions.