Overpayment for locked invoice

I overpaid a supplier a few months back and this has only just come to my attention.
The amount which has been overpaid has been credited by my supplier to the recent invoice…

The overpaid invoice cannot be ammended as it contains the message

This transaction has been locked as it relates to a previously submitted VAT return. You can continue to log payments against this invoice but you cannot change the amount or items.

There was £100 overpaid on the above “invoice A” which my supplier has credited towards new “Invoice B”

I am not sure how to approach this, any help would be appreciated

Hi @Paul87

If you have overpaid an invoice where is the overpayment tagged to?

Hi @QFBeth
I entered Invoice A as £500 when it should have been £400 so the overpayment was tagged to Invoice A

I cannot edit Invoice A at present as it has been submitted for a VAT return

Ideally Id like to be able to ammend Invoice A and change to £400 then allocated the £100 that is left over to Invoice B but Im not sure if that is possible?

Hi @Paul87

The easiest thing to do in that case would be to raise a £100 credit on invoice A and add in the description that its to correct posting error and then to hold the credit funds on the account.

You can then pay invoice B from those held funds

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thanks for your help @QFBeth

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