Where to find these preferences
To do this task
Go to the Edit menu and click Preferences.
In the list at the left of the Preferences window, click Bills.
Click the Company Preferences tab.
These preferences affect all users. Only the QuickBooks Administrator can change them.
Bills are due X days after receipt: QuickBooks initially assumes that bills are due 10 days after receipt. This means that if you enter a bill dated January 1, QuickBooks will show January 11th as the due date.
QuickBooks uses the due date to determine when to add the bill to the "Bills to pay" section of your Reminders list.
Warn about duplicate bill numbers from same vendor: Causes QuickBooks to warn you if you try to record a bill that has the same number as an existing bill from the same vendor.
The warning causes QuickBooks to take more time to record a bill. This affects performance significantly if you have a large company file.
If this checkbox is not selected, users can enter duplicate bill numbers without any warning.
Automatically use credits: Causes QuickBooks to automatically apply any vendor credits to the bill that you're paying in the Pay Bills window.
To set this preference, select the Automatically use credits checkbox.
Automatically use discounts: Causes QuickBooks to automatically apply any discounts to the bill that you're paying in the Pay Bills window.
To set this preference, select the Automatically use discounts checkbox. Then click the Default Discount Account drop-down arrow and click the account you want discounts applied to.