Paying out accrued vacation time is not a legal requirement, it is a company policy. Some companies have a policy to pay all accrued if you leave, some pay a percentage, and some pay nothing. A company wouldn't need to offer unlimited vacation to avoid paying out a lump sum. In some companies, accrued sick leave can be applied towards years of service when calculating retirement eligibility. In those cases, sick leave very much has monetary value.
As was stated in another response, if the OP did not pay taxes on the value of the vacation time, which would never happen, nothing would exist to claim a deduction for. It would have to fall into a "credit" category, which it doesn't.
It seems at best it could be a breach of contract if the benefit was promised, but the courts appear to have already ruled on that, in thier favor.
MG, I could be misunderstanding both of your posts in this thread, and if so, I apologize; but something about what you have posted isn't getting through to me.
In college, I worked at K-Mart for about 18 months. At one point, my wife also worked there (before I did). In 2003 or 2004, a solid 8 or 9 years after we both had quit our retail jobs and moved on, we both received settlements because a former K-Mart employee sued the corporation on behalf of a class of employees for K-Mart's failure to pay out cash-equivalent for accrued vacation time. My recollection is that when an employee would notify K-Mart management of their intent to quit (two-week notice), K-Mart was not offering the employee the opportunity to use the vacation days before ending employment and was not even indicating to the employee that vacation time had accrued that had value. Thus, the class action suit.
Our settlements worked out to be about $4000 and $1500 each, hers to mine (she worked their longer), with each amount inflated because of interest that had accrued on the value since our time there. It made our taxes a little maddening for that year, since we both received W-2, 1099-Misc, and 1099-Int income statements from K-Mart post-settlement.
All that to say - in WV, it seems that accrued vacation time has value, and when converted from an intangible to tangible form (cash equivalent), is also taxable.
Not having experience with bankruptcy, I have no idea if or whether it should make a difference concerning accrued vacation owed to former employees.
FWIW.