For NY, it is possible to claim a home office expense, if you meet the criteria below:
if you are claiming business use of your home, a letter from your employer stating all of the follow...
- a home office is necessary for your employment
- office space is not available at their location
Note: You can claim a deduction for a home office only if you use that part of your home regularly and exclusively as your principal place of business. You cannot claim a home office for occasional or incidental use. The regular and exclusive use must be for the convenience of your employer and not just appropriate and helpful in your job.
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