Home office for anesthesia? Maybe. Deducting travel from basically home to the true workplaces? Deducting the vehicle for a vehicle that's not owned by the business, without very good documentation? It sounds like an invitation for audit and stiff fines. You are clearly trying to do some tax engineering, instead of claiming the most deductions for a legitimate situation.
Even the standard mileage allowance could be a red flag, since traveling from home to a permanent work site is not business travel, home office or not. If it were legit, everybody would invent a "home office", and deduct both the "office" and all commuting costs.
That's just my conservative thinking when about the Law. Ask a GOOD accountant or tax lawyer (i.e. one who has never lost an audit, and will represent you for free).
Publication 463 (2017), Travel, Entertainment, Gift, and Car Expenses | Internal Revenue Service
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If you have an office in your home that qualifies as a principal place of business, you can deduct your daily transportation costs between your home and another work location in the same trade or business. "
Publication 587 (2017), Business Use of Your Home | Internal Revenue Service
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You can have more than one business location, including your home, for a single trade or business. To qualify to deduct the expenses for the business use of your home under the principal place of business test, your home must be your principal place of business for that trade or business. To determine whether your home is your principal place of business, you must consider:
- The relative importance of the activities performed at each place where you conduct business, and
- The amount of time spent at each place where you conduct business.
Your home office will qualify as your principal place of business if you meet the following requirements.
- You use it exclusively and regularly for administrative or management activities of your trade or business.
- You have no other fixed location where you conduct substantial administrative or management activities of your trade or business.
If, after considering your business locations, your home cannot be identified as your principal place of business, you cannot deduct home office expenses. "
And here dies your financial engineering:
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If you meet or deal with patients, clients, or customers in your home in the normal course of your business, even though you also carry on business at another location, you can deduct your expenses for the part of your home used exclusively and regularly for business if you meet both the following tests.
- You physically meet with patients, clients, or customers on your premises.
- Their use of your home is substantial and integral to the conduct of your business.
Doctors, dentists, attorneys, and other professionals who maintain offices in their homes generally will meet this requirement.
Using your home for occasional meetings and telephone calls will not qualify you to deduct expenses for the business use of your home."