auto and homeowners insurance

If you are self-employed you might have something to enter on a schedule C.   If you are not self-employed you cannot deduct anything for your auto insurance.   Homeowners insurance is not deductible for your own home.  If the insurance is for a rental property you own you can enter it.

It depends.  Individuals who own a business or are self-employed and use their vehicle for business may deduct car expenses on their tax return. If a taxpayer uses the car for both business and personal purposes, the expenses must be split. The deduction is based on the portion of mileage used for business.  There are two methods for deduction auto expenses (1) Actual Expense and (2) Standard Mileage.   If you use standard mileage then the auto insurance cannot be deducted.  On the other hand, if you use actual expenses it can be claimed.   See the article Auto - Actual Expenses vs. Standard Mileage.   Keep in mind once you use actual expenses for the vehicle (even if it's the first year you used it for business), you can't switch to standard mileage rate. You must continue using actual expenses as long as you use that car for business.  Switching between Standard Mileage and Actual Expense

For homeowners insurance, if you are eligible for an Office in the Home deduction then the homeowner insurance can be included in that calculation.

In summary, you can only claim auto insurance if you use your auto for conducting business.  You must choose one of the two methods.  Homeowners' insurance can only be claimed if your business office is in your home.  Other than the methods listed above auto insurance and homeowners insurance are not deductible.