How to Enter Invoices in QuickBooks

Invoices are the backbone of accounts receivable in QuickBooks. Whether you are billing a client for completed work, converting an estimate into a payment request, or fulfilling a sales order, knowing how to enter invoices in QuickBooks correctly is one of the most practical skills for any small business owner or bookkeeper. This guide walks through every method available in QuickBooks Desktop 2022, 2023, and 2024 and QuickBooks Online, including creating invoices from scratch, converting sales orders or estimates, applying discounts, and troubleshooting common issues that prevent invoices from saving or sending. All steps have been verified on QuickBooks Desktop Pro 2022, 2023, and 2024 running on Windows 10 and Windows 11.

What Is an Invoice in QuickBooks?

An invoice in QuickBooks is a formal billing document that records money owed to your business by a customer for goods or services already delivered. When you enter an invoice, QuickBooks creates an accounts receivable entry that increases what customers owe you. The transaction appears on your Balance Sheet under Accounts Receivable and on your Profit and Loss report as income, even before the customer pays.

QuickBooks distinguishes invoices from sales receipts. A sales receipt is used when a customer pays immediately at the point of sale. An invoice is used when payment will come later, on terms you define such as Net 30 or Net 15. Entering invoices correctly ensures your cash flow projections, aging reports, and income statements all reflect reality.

QuickBooks Desktop and QuickBooks Online both support full invoicing. The steps differ slightly between versions, but the underlying logic is the same. This guide focuses on QuickBooks Desktop with notes for QuickBooks Online where the workflow differs meaningfully.

Before You Begin

• Confirm that the customer you are billing exists in your Customer List. If not, you can add them directly from the invoice screen.
• Verify that the items or services being billed are in your Item List with the correct income account assigned.
• If you plan to apply discounts, set up a Discount item in the Item List first (covered in the discount section below).
• If you are converting an estimate or sales order, open that document first, then use the Create Invoice button from within it.

How to Create an Invoice from Scratch

This is the standard method for billing a customer without a pre-existing estimate or sales order.

Step 1: From the QuickBooks Desktop home screen, click Create Invoices in the Customers panel. Alternatively, go to Customers > Create Invoices from the top menu.

Step 2: In the Customer: Job drop-down at the top of the invoice form, select the customer or job you are billing. If the customer does not appear in the list, select Add New and fill in their details before continuing.

Step 3: Fill in the invoice header fields:

• Date: Defaults to today. Change it if you need to back-date or forward-date the invoice.
• Invoice #: QuickBooks auto-assigns a sequential number. You can override this if your business uses a custom numbering scheme.
• Bill To / Ship To: Pulled from the customer record. Update if the billing address differs for this transaction.
• Terms: Select the payment terms (Net 30, Net 15, Due on Receipt, etc.). These terms control the due date shown to the customer and affect your A/R aging report.

Step 4: In the line-item section, click the first row under Item and select the item or service being billed. Once selected, QuickBooks automatically populates the description, rate, and income account based on your Item List setup. Adjust the quantity and rate as needed for this specific transaction.

Step 5: Add additional line items as required. Each line maps to a separate income category on your Profit and Loss report, so use distinct items if you are billing for multiple types of work.

Step 6: If applicable, add a customer message in the Customer Message field at the bottom. This appears on the printed or emailed invoice.

Step 7: Click Save and Close to record the invoice, or Save and New to immediately start another invoice.

How to Apply a Discount on an Invoice

Discounts in QuickBooks Desktop are not a built-in toggle. They require a dedicated Discount item in your Item List. If you have not set one up yet, follow these steps before adding the discount to the invoice.

Setting up a Discount item (one-time setup):

1. Go to Lists > Item List
2. Right-click anywhere in the list and select New
3. From the Type drop-down, select Discount
4. Enter an Item Name (for example, "10% Loyalty Discount" or "Trade Discount")
5. Add a short description that will appear on the invoice
6. Enter either a fixed dollar amount or a percentage in the Amount or % field. Leave it blank if you want to enter the discount amount manually each time.
7. In the Account field, select the income account you use to track discounts given (typically a contra-revenue account)
8. Set the Tax Code appropriately. Discounts applied before tax reduce the taxable subtotal; discounts applied after tax do not.
9. Click OK to save the item.

Applying the discount on an invoice:

After setting up the Discount item, add it as a line on the invoice directly below the item you want to discount. QuickBooks applies the percentage or amount to the line immediately above it. Place it after all items if you want a total-order discount.

How to Create an Invoice from a Sales Order

Sales orders are available in QuickBooks Desktop Premier and Enterprise editions. They let you record a customer commitment before fulfillment and then generate one or more invoices against that order.

Step 1: Open the sales order you want to invoice. Go to Customers > Sales Orders or find it through the Customer Center.

Step 2: Click Create Invoice at the top of the sales order window.

Step 3: QuickBooks prompts you to choose:

• Create Invoice for All of the Sales Order(s): Converts every line item into the invoice. Use this when fulfilling the entire order at once.
• Create Invoice for Selected Items: Opens a dialog where you enter the quantity to invoice for each line. Enter zero for any item not yet fulfilled. Use this for partial shipments or phased billing.

Step 4: Review the generated invoice. Adjust the date, terms, or any other fields as needed.

Step 5: Click Save and Close to record the invoice. The sales order updates to reflect how much has been invoiced versus how much remains open.

If you need to invoice the remaining balance later, return to the original sales order and repeat the process. QuickBooks tracks the open quantity automatically.

How to Create an Invoice from an Estimate

Estimates let you provide a quote to a customer before work begins. Once the customer approves, you can convert the estimate into an invoice without re-entering the details.

Step 1: Open the estimate. Go to Customers > Estimates or find it in the Customer Center under the customer's transaction history.

Step 2: Click Create Invoice at the top of the estimate.

Step 3: If you have Progress Invoicing enabled (recommended for long projects), QuickBooks asks what percentage of the estimate to invoice now. Options include:

• 100% of the estimate: Converts the entire estimate into one invoice.
• A specific percentage: Enter a number such as 50 to bill half now and half later.
• Custom amounts for each item: Lets you enter the exact quantity or amount per line.

Progress Invoicing must be turned on before this option appears. Enable it at Edit > Preferences > Jobs and Estimates > Company Preferences and check Do you do progress invoicing?

Step 4: Review the invoice. The estimate number links to the invoice, and QuickBooks tracks how much of the estimate has been billed so far.

Step 5: Click Save and Close.

How to Enter Invoices in QuickBooks Online

QuickBooks Online uses a slightly different interface but follows the same logic.

Step 1: From the left navigation, click + New, then select Invoice under the Customers column.

Step 2: In the Customer field at the top, select or add the customer.

Step 3: Fill in the Invoice Date, Due Date (or select a Payment Term), and Invoice Number.

Step 4: In the product or service table, select items from your Products and Services list. Adjust quantities and rates as needed.

Step 5: To add a discount, toggle on the Discount column using the gear icon on the right side of the table. Enter a percentage or fixed amount per line or as a total.

Step 6: Add a message to the customer in the Message on Invoice field.

Step 7: Click Save and Send to email the invoice directly, or Save and Close to save it for sending later.

QuickBooks Online also supports progress invoicing. Enable it at Account and Settings > Sales > Progress Invoicing.

Sending and Tracking Invoices

Entering an invoice records the accounts receivable transaction, but getting paid requires delivery. QuickBooks supports both print and email delivery.

To email an invoice from QuickBooks Desktop:

1. Open the invoice
2. Click Send or Email at the top of the invoice window
3. Review the pre-filled email address pulled from the customer record
4. Edit the subject and body if needed, then click Send Now

To print an invoice:

1. Open the invoice
2. Click Print and select your printer settings

Tracking open invoices: Go to Customers > Customer Center and select the customer to see all open and paid invoices. For a full aging view, run Reports > Customers and Receivables > A/R Aging Summary.

Common Invoice Entry Problems and Fixes

Invoice does not show in the customer's transaction history

Check that the Customer: Job field on the invoice exactly matches the customer name in your Customer List. A mismatch causes the invoice to appear under a different record.

Discount item is not reducing the total

Verify that the Discount item is placed on the line directly below the item it should reduce. If you want a total discount, place it after all line items.

Progress invoicing option does not appear

Enable it at Edit > Preferences > Jobs and Estimates > Company Preferences and check the progress invoicing box. You must have an accepted estimate open to trigger the progress invoicing dialog.

Invoice saves but does not appear in accounts receivable

Confirm the income account on each line item is not mapped to an expense or bank account. Go to Lists > Item List, double-click the item, and verify the Account field points to an income account.

Sales tax is calculating incorrectly

Check the Tax Code on each line item and verify the customer's tax status in their customer record. Non-taxable customers should have the Tax field set to Non in their profile.

When to Call Support

If invoice entries are saving incorrectly, disappearing, or producing unexpected effects on your financial reports, these issues may indicate data file corruption or a configuration problem that requires Intuit support.

Contact QuickBooks support phone number if:

• Invoices disappear after saving despite no error message
• Accounts receivable balances do not match the sum of open invoices
• Progress invoicing percentages calculate incorrectly across multiple invoice cycles
• The Create Invoice button is greyed out or missing from an estimate or sales order
• Invoice totals do not match the sum of line items after saving

You can also visit the QuickBooks Community or the Intuit Help Center for peer-reviewed solutions.

Tips for Better Invoice Management

• Send invoices the same day work is delivered. Delayed invoicing directly delays payment. QuickBooks Online allows you to create invoices from a mobile device immediately after completing a job.
• Use payment terms consistently. Setting Net 30 for some customers and Due on Receipt for others without tracking the difference creates confusion in your A/R aging reports.
• Review your A/R Aging Summary weekly. Invoices over 30 days past due are significantly less likely to be collected in full. QuickBooks flags these automatically in the aging report.
• Customize your invoice template. Adding your logo, contact information, and a clear payment instruction reduces the number of customer questions you receive. Go to Lists > Templates to manage invoice templates.
• Enable automatic payment reminders. QuickBooks Online can send reminder emails to customers before and after the due date without any manual action. Set this up at Account and Settings > Sales > Reminders.
• Match invoices to payments promptly. Unapplied payments sitting in your bank account alongside open invoices create reconciliation problems at month-end. Apply payments as they arrive.