Employee Advances/Loans and 941 Tax

Can someone please answer me this question for Washington State and Quickbooks Online.

1) What is the best procedure for entering a cash advance for an employee when they are given a check outside of normal payroll and it is not realized until after clearing the bank (and or after the month is reconciled). QuickBooks told me one method but when the monies are deducted each payroll it was not showing that the debt was being reduced.

2) When are the 941 federal taxes supposed to come out for the advance and how is that entered?

Thank you.