If you're upgrading your company file from an older MYOB product, VAT codes may be affected
Three VAT types are available in MYOB Accounting Plus Version 11: VAT, VAT-EC Sales and VAT-EC Purchases.
If you've upgraded your company file from Accounting Plus Version 7.5 or earlier, all of the VAT codes you created previously will be assigned theVAT type "VAT" when you upgrade to Accounting Plus Version 11. You can continue to use the VAT codes you created and used in your earlier MYOB product.
Also, linked accounts for taxes originally entered in the Nominal, Sales and Purchases Ledger Linked Accounts window will be assigned to your VAT codes in the VAT Code Information window when you begin using Accounting Plus Version 11.