Create sales invoices

Sales invoices make demands for payment from customers for goods or services. They increase the balance of the customer’s subaccount in Accounts receivable and, therefore, are used when selling on credit. They do not record receipt of money, which must be handled by a second transaction, even if the customer pays upon delivery. In a double-entry accounting system like Manager, they also post income to appropriate accounts.

Enable the Sales Invoices tab

Before a sales invoice can be created, enable the Sales Invoices tab. Click Customize below the left navigation pane, check the box for Sales Invoices, and click Update below the list:

Manager offers six methods for creating sales invoices:

  • Standard method
  • By cloning
  • From Customers tab
  • From sales quotes
  • From sales orders
  • From purchase invoices

Standard method

In the Sales Invoices tab, click on New Sales Invoice:

Complete the form:

  • By default, Invoice date is prepopulated with today’s date.

  • An optional Due date can be entered, either as a calendar date or as a number of days after the issue date (illustrated below). If a Due date is not entered, Manager will automatically use the Invoice date as the Due date.

  • Options for Late payment fees can be selected. (1.5% monthly is illustrated below). Manager will automatically assign an Invoice number when the sales invoice is created. It will find the highest-numbered prior sales invoice and add 1.

  • The Order number field can be used to enter a customer’s purchase order number or an internal reference number.

  • If the Sales Quotes tab is enabled, the Quote number field appears. Completion of both these last two fields is optional.

  • A previously defined Customer must be selected in the dropdown box.

  • The customer’s Billing address is filled automatically.

  • Line items can be completed semi-automatically by selecting predefined inventory or non-inventory items and entering quantities. Or, they may be entered manually. Additional lines can be added 1, 5, 10, or 20 at a time.

  • Applicable Tax codes can be selected.

  • If tracking codes have been created, the Tracking Code field appears.

Near the bottom of the screen are checkboxes for various options:


  • If the option to indicate a Discount is being applied is checked, further options appear for percentage or fixed amount discounts.
  • Another option lets you indicate Amounts are tax inclusive. If this box is checked, tax amounts are deducted from the unit price; otherwise they are added to the invoiced amount.
  • Options to Round off the total are available.
  • Withholding of tax can also be selected by checking the box to Deduct withholding tax and entering the Rate or Amount.
  • Likewise, an Early payment discount or Custom theme can be indicated, with further option fields appearing as boxes are checked.

Click Create to generate the finished sales invoice:

Because of the specific in-built tax code selected, this sales invoice’s heading has been changed to Tax Invoice. This happens when such a title is known to be required by local law. That does not happen with custom tax codes. See another Guide to learn how to force such a change.

By cloning

For repeat sales, an existing sales invoice can be duplicated by cloning. While viewing the existing sales invoice, click Clone, edit as required, and click Create:

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From Customers tab

If the Billable Time or Billable Expenses tabs are being used, sales invoices can be created from the Customers tab:

Drill down by clicking the blue balance in the Uninvoiced column for a customer:

Select any uninvoiced billable time or billable expenses to be invoiced and click New Sales Invoice:

A sales invoice is created, which can be edited or added to. See this Guide for more information.

From sales quotes

If the customer was given a sales quote before goods or services were ordered, a sales invoice can be created directly from the sales quote without re-entering information. While viewing the sales quote, select New Sales Invoice from the Copy to dropdown box:

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A sales invoice entry screen appears, carrying forward necessary information, including the quote number. This can be edited as needed. When Create is clicked, a sales invoice is generated. For this illustration, no tax code was used, so the default Invoice title appears:

From sales orders

If a sales order has been created in response to a customer’s purchase order, a sales invoice can be created directly from it. Exactly as when creating a sales invoice from a sales quote, select New Sales Invoice from the Copy to dropdown box:

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From purchase invoices

If goods or services being invoiced to a customer were purchased from a supplier, and the supplier’s sales invoice has been entered into Manager as a purchase invoice, a sales invoice can be created directly from the purchase invoice. Again, while viewing the purchase invoice, select New Sales Invoice in the Copy to dropdown box:

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