Cash vs Accrual Bookkeeping in California – Which Method Fits Your Service Business?

Choosing cash or accrual is one of the most important finance decisions a California service business will make. Cash is simple and mirrors bank activity; accrual recognizes revenue and expenses when earned or incurred. This guide shows you how each method affects taxes, cash flow, KPIs, and what to consider before switching.

What changes in taxes

Cash recognizes income when paid and expenses when paid. Accrual recognizes income when invoiced and expenses when billed. In a fast-growing services firm, accrual usually reflects reality better, but it may pull income forward for tax. Discuss timing with your CPA before year-end.

Impact on cash flow and KPIs

Cash can over-inflate margins when invoices are unpaid; accrual shows true gross margin and operating costs for the period. Accrual improves forecasting (AR, AP, WIP) and helps you price work and staffing more accurately.

Switching mid-year

Avoid switching in Q4 unless tax planning requires it. Prepare opening AR/AP schedules, unearned revenue, prepaid expenses, and a clean trial balance. Lock past periods in QBO after migration to avoid drift.

Tools/Settings in QuickBooks Online

Use the company setting to set default reporting basis. Build recurring invoices for retainers and use the Projects module to track WIP on accrual. For cash-basis tax, keep books accrual but run cash-basis tax reports at filing time.

FAQs

What is single-entry bookkeeping?
It records only one side of each transaction and doesn’t fully support accrual method tracking.

Where are expenses recorded in the accounting equation?
Expenses decrease equity by reducing retained earnings.

How does the accounting equation apply to cash vs accrual bookkeeping?
It ensures both methods maintain balanced financial statements.

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