QB Issue Resolution:
On the expense page, you can add £650 in the Amount column, and select 20.00% S in the Vat column. Then, enter the £512.67 in the VAT @ 20% on 650.00 field. You can refer to the screenshot below.
Resolution for Issue '100% vat split' available: Yes (Solved).
Source: Intuit Community forum.
100% vat split: 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 Amount column
Quickbooks Repair Pro will resolve it efficiently and affordably. Guaranteed resolution of your issue, or you pay nothing!
Error Recovery for Amount column [Canada]
E-Tech is the #1 Quickbooks data migration and Conversion service provider.
Additional Support Options: