Invoice
An invoice is a document sent by a seller to a buyer requesting payment for goods or services delivered. It includes details like the invoice number, date, description of items, quantities, prices, payment terms, and the total amount due. In bookkeeping, creating an invoice records accounts receivab
Invoice Definition
An invoice is a document sent by a seller to a buyer requesting payment for goods or services delivered. It includes details like the invoice number, date, description of items, quantities, prices, payment terms, and the total amount due. In bookkeeping, creating an invoice records accounts receivable—money owed to you.
Invoice in Practice — Example
A freelance web developer completes a project for a local dentist's office. She creates an invoice in QuickBooks for $3,500 with Net 30 payment terms, itemizing 40 hours of development at $75/hour plus $500 for hosting setup. She emails the invoice on March 1st. QBO records $3,500 in accounts receivable. When the dentist pays on March 22nd, she records the payment, clearing the receivable and increasing cash.
Why Invoice Matters for Your Books
Invoicing is the engine of your revenue cycle. Without proper invoicing, you don't get paid—and your books don't reflect what you've earned. On accrual basis, an invoice creates revenue the moment you send it (because the work is done), regardless of when cash arrives.
Consistent invoicing also creates an audit trail. Each invoice has a unique number, date, and detailed description of what was sold. This documentation is essential for tax reporting, dispute resolution, and financial analysis.
Late or inconsistent invoicing is one of the top cash flow killers for small businesses. If you deliver the work but wait two weeks to send the invoice, you're pushing your payment out by at least two weeks—often more. Invoice promptly, follow up systematically, and your cash flow improves dramatically.
How Invoice Shows Up in QuickBooks
In QBO, create invoices via + New → Invoice. Add the customer, line items, amounts, and payment terms. QBO automatically posts the invoice to Accounts Receivable (Balance Sheet) and Revenue (P&L). When the customer pays, record it via Receive Payment, which moves the amount from AR to Cash. Track outstanding invoices with the Accounts Receivable Aging report. Set up automated payment reminders to reduce late payments.
Common Mistakes
FAQ
Q: What's the difference between an invoice and a receipt?
A: An invoice requests payment before or after delivery. A receipt confirms payment has been received. They're different stages of the same transaction.
Q: When should I send an invoice?
A: As soon as the work is complete or the product is delivered. For ongoing services, invoice on a consistent schedule (weekly, biweekly, or monthly). Don't delay.
Related Terms
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Related Terms
A tangible asset is a physical item of value that your business owns and uses in its operations. Unlike intangible assets (like patents or trademarks), tangible assets have physical substance you can touch — equipment, vehicles, buildings, furniture, and inventory. They typically appear on the balan
Inventory is the stock of goods a business holds for sale to customers or for use in producing goods for sale. It includes raw materials, work-in-progress, and finished goods. Inventory is classified as a current asset on the Balance Sheet because it's expected to be sold or used within one year.
A fixed cost is a business expense that stays the same regardless of how much you produce or sell. Rent, insurance premiums, and salaried employee wages are classic examples. Whether your revenue doubles or drops to zero, fixed costs remain constant over a given period.
The closing balance is the final amount in an account at the end of an accounting period. It becomes the opening balance for the next period.
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