Problem: Payable and Receivable VAT figures for the same period differ in VAT Return and VAT Liability Calculation documents.
Solution:
1) VAT Return Document is created for the selected period only
The Documents that are included in the Payable and Receivable boxes are available in the details of the of each lines of the Return document.
2) Calculation of VAT Liability is showing the Payable and Receivable VAT figures on date , BUT not for the period.
These figures are coming from the closing balance of Current VAT Payable and Current VAT Receivable GL accounts, you can check it from Trial Balance or Statement of Account (Please refer to the manual: 7.7. Accounting: Reports )
3) You can calculate the difference value and try to find the corresponding documents in both (Accounting and Tax reports).
4) If you Entered or Deleted/Unposted documents backdated and document date is not within VAT Return period you will not see its reflection in current VAT Return, but it will be reflected in the Calculation of VAT Liability.
5) If you manually change some figures in VAT Return document, these changes will not appear in the Calculation of VAT Liability, it will be calculated according to the system's data not on the figures that you entered manually.
6) If you previously entered Tax Payment/Tax Refund for the same period, the payment amount will be deducted from total amount (in case if you fill the Liability Calculation document after posting).