QB Issue Resolution:
While we always hope our customers pay on time, things happen and you may want to implement late fees. What amount to charge as a late fee is entirely up to you, but if you’re unsure, an accountant would be able to offer more insight or help you determine an appropriate account. The program makes it easy to connect with an accountant by giving you the option to invite an accountant by email or to Find an accountant using the tool in the My Accountant tab in the left menu.
Adding late fees isn’t currently an integrated feature in QuickBooks Online, however there is a workaround you can look at by reading the following article: How to enter late fees or finance and service charges on invoices
There may also be apps that can help you with this process. Go to the Apps menu and use keywords to search for what’s available.
Resolution for Issue 'How do I add interest on over due invoices and waht is the acceptable amount please?' available: Yes (Solved).
Source: Intuit Community forum.
How do I add interest on over due invoices and waht is the acceptable amount please?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.Support for Apps menu
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