All your income has to be confirmed by pay stubs etc.
Vacation pay is considered income and must be reported to the trustee.
Note on the Income and Expense Statement the list of types of income a bankruptcy must report:
Does Vacation Pay Count towards Surplus Income Calculations?
It is possible for you to take a vacation when you go bankrupt although you will be required to include any vacation pay in your reporting to your Licensed Insolvency Trustee as part of the calculation towards your surplus income payments.
If your vacation pay increases your income over a certain level you will be required to make surplus income payments, which will increase the time you will be in bankruptcy, and therefore also the cost of your bankruptcy.
Your income is averaged over the length of your bankruptcy, so if you have one month of very high income it will be set off over the other months of lower income.