Hello Antonia,
Welcome to the Community page,
Thanks for your query about how to record a VAT surcharge. Here are two examples on how you could do this in Quickbooks. We'd always recommend that you check with an accountant on this as well.
1. in the taxes section record the £12131.38 as being the amount paid and then do a separate expense for the difference of the amount you paid for the surcharge £4713.09 in this example (making sure the supplier is HMRC and you can set up an expense account for the surcharge and then save) Then if you go to the banking and click on the transaction and then find a match you should be able to click both
2. split the transaction on the banking page between the VAT suspense account and the expense account you want to use for the surcharge (though this will record the payment in the taxes section as still open, the payment will be allocated correctly to the liability account and the additional payment to the expense account) and then add
These examples are if HMRC did not assign the surcharge against their VAT amount due (if HMRC did assign it against the vat amount due you don't even need 2 payments, you would just record the VAT payment as the amount paid)
Any questions just ask.
