If you record a payment against a CIS invoice by mistake, you can correct your accounts with a manual journal.
Sage Sole Trader doesn't currently let you undo a payment from the invoice itself.
NOTE:
A new feature for reversing payments is coming soon. Once that feature is available, you can undo a payment without a journal.
Cause
Resolution
When you record a payment for a CIS invoice, Sage posts these entries on the payment date:
A debit to CIS Tax Asset Realised (account 1131) for the CIS amount
A credit to Sales - Products (account 4000) for the gross invoice amount
A money-in transaction to your bank, if you ticked Create money-in transaction
You can see these on the Nominal Activity report under the original payment date.
Post the reversing journal:
CAUTION:
A manual journal directly affects your accounts. If you aren't confident with double-entry bookkeeping, speak to your accountant before posting one. An incorrect journal can create errors that take longer to fix.
Go to Transactions, then select the Draft tab.
Select Add, then select Journal.
Read the Adding journals message, then select Continue.
Enter a Journal reference and use the date of the original payment.
Add a Journal description explaining what the journal is for.
On the first line, select Sales - Products as the Ledger account.
Enter the gross invoice amount in Debit.
On the second line, select CIS Tax Asset Realised as the Ledger account.
Enter the CIS amount in Credit.
If you ticked Create money-in transaction with the original payment, select Add new line to add a third line:
Select your bank account as the Ledger account
Enter the net amount in Credit
Check the Debit and Credit totals balance, then select Save as Completed.
NOTE:
The invoice still shows as Paid after you post the journal. Your reports and balances are correct, but the invoice status doesn't change until Sage releases the new feature.