Last Updated: September 2026

Cash vs. Accrual Accounting

Which accounting method is right for your business? A CPA-written guide covering IRS rules, tax timing differences, when each method is required, and how to switch — for DC, Maryland, and Virginia businesses.

What is the difference between cash and accrual accounting?

Cash basis accounting records revenue when cash is received and expenses when they're paid. Accrual basis records revenue when earned and expenses when incurred, regardless of when cash changes hands. The IRS requires businesses with over $27 million in average annual gross receipts, C-corporations, and inventory-holding businesses to use accrual accounting. GAAP-compliant financial statements require the accrual method.

Key Definitions

Cash Basis Accounting: Cash basis accounting recognizes revenue when payment is received and expenses when payment is made. It reflects actual cash flow but may not accurately match revenue to the expenses that generated it, particularly for businesses with outstanding invoices or unpaid bills.

Accrual Basis Accounting: Accrual basis accounting recognizes revenue when it is earned (services delivered or goods sold) and expenses when they are incurred, regardless of when cash is exchanged. Required under GAAP, this method provides a more accurate picture of a company's financial position.

Cash vs. Accrual Accounting: Key Differences

Feature	Cash Basis	Accrual Basis
Revenue recognition	When cash is received	When earned (regardless of payment)
Expense recognition	When cash is paid	When incurred (regardless of payment)
Matches revenue to expenses
Required for businesses over $27M in sales
Required for C-Corporations
Required for inventory-heavy businesses
Required for audited financials (GAAP)
Complexity	Simple	More complex
Tax timing flexibility	High (defer income)	Lower
Best for	Freelancers, service businesses under $27M	Most established businesses

Side-by-Side Examples

Example 1: Invoice Sent in December, Paid in January

Cash Basis:

Revenue recorded in January (when cash arrives). December P&L shows no revenue from this invoice.

Accrual Basis:

Revenue recorded in December (when earned). January cash receipt reduces accounts receivable, no P&L impact.

Example 2: Annual Insurance Premium Paid in January

Cash Basis:

Full $12,000 premium expensed in January. Months 2–12 show no insurance expense.

Accrual Basis:

$12,000 recorded as prepaid asset in January. $1,000/month expensed each month over the coverage period.

Tax Timing: Cash Basis as a Strategy

Eligible businesses (under $27M gross receipts) often prefer cash basis specifically for tax timing flexibility:

Defer income: Invoice in late December but don't expect payment until January — income shifts to next tax year
Accelerate deductions: Pay business expenses (insurance, subscriptions, supplies) in December to deduct in current year
Year-end bonuses: Accrue but don't pay until January to defer the deduction to the employee's income into next year (note: corporation rules differ)

These strategies are legal tax planning — not avoidance. Your CPA can model the tax impact of timing decisions before year-end.

When to Switch from Cash to Accrual

Seeking a bank loan

Most lenders require accrual-basis financial statements for loans over $500,000. They need to see receivables and payables, not just cash flow.

Revenue over $5M–$10M

At this scale, cash basis financials often distort performance. Accrual gives management a more accurate picture of profitability.

Preparing for an audit

Audited financial statements under GAAS must be GAAP-compliant, which requires accrual basis.

Inventory becomes significant

IRC Section 471 generally requires accrual for businesses with material inventory (though the $27M threshold now provides relief for many small businesses).

Seeking investors or M&A

Investors and acquirers evaluate businesses on accrual-basis EBITDA. Cash basis financials must be converted, which can reveal adjustments that affect valuation.

Frequently Asked Questions

The IRS requires businesses with average annual gross receipts exceeding $27 million (adjusted for inflation; $25M prior to 2018 Tax Cuts and Jobs Act) to use the accrual method. C-corporations, partnerships with a C-corp partner, and tax shelters must also use accrual regardless of size. Most small businesses remain under this threshold and may choose either method.

Consider switching to accrual accounting when: you have significant accounts receivable or payable that distort your cash-basis P&L, you need GAAP-compliant financials for lenders or investors, your business grows past $5M in revenue, you are seeking audit or review services, or you acquire inventory and need to match COGS to revenue. The switch requires IRS Form 3115 (change in accounting method).

Yes, many businesses maintain books on an accrual basis for internal management reporting while filing taxes on a cash basis (if eligible). This requires a reconciliation adjustment at tax time. It's common for businesses that need GAAP-like financials for management but prefer cash basis for tax timing flexibility. Your CPA handles the conversion.

Yes. GAAP requires nonprofits to use accrual accounting for their financial statements. This is why nonprofit audits and reviews always produce accrual-basis financial statements, even if the organization tracks cash in a simpler system day-to-day. Grants are recognized when conditions are met (conditional vs. unconditional contributions), not when cash arrives.

Modified cash basis (also called modified accrual) is a hybrid — primarily cash basis with certain accrual elements, such as recording accounts payable and depreciating fixed assets. It's used by some small businesses and governments. It's not GAAP-compliant but is more informative than pure cash basis. A CPA can explain which method fits your reporting needs.

Changing from cash to accrual (or vice versa) requires filing IRS Form 3115 (Application for Change in Accounting Method). For most small businesses, this is filed with the tax return. There may be a Section 481(a) adjustment to prevent income from being double-counted or missed in the transition year. Your CPA handles this filing as part of the conversion process.

Related Services

Bookkeeping Services|Tax Preparation|Audit Services|Nonprofit Audit

Not Sure Which Method Is Right for Your Business?

Our CPAs will review your revenue, business type, and reporting needs to recommend the right accounting method — and handle the IRS Form 3115 filing if you need to switch.