You can customize your invoice template to suit your business needs. I can guide you in doing so.
Go to the Gear icon.
Choose Custom Form Styles.
Click the New Style button.
Set your invoice design.
From the Content tab, set the contents you want to include in the invoice.
Click Done.
On the other hand, if you wish to use your company's invoice template, you can do so by importing it to QuickBooks. Let's first enable this feature in your account.
Go to the Gear Icon.
Select QuickBooks Labs.
Scroll down and locate Import Style.
Click the slider button to turn on the preference.
Click Done.
Once completed, you can now start importing your desired invoice template. Here’s how:
Click the Gearicon.
Click Accountsandsettings then click CustomFormStyles.
Click Newstyle and then choose Importstyle.
You can click Download a sample invoice, to get the acceptable file by QuickBooks.
After editing the sample file, you can browse the document and click Next.
Then QuickBooks will show you the status, if it’s accepted then click Next.
After the confirmation, then click Save and you can put the Templatename.