I think you'd be better off speaking to your tax consultant or accountant.

Talk to your tax consultant for best advice

Ask your accountant.  A

CAR is the biggest ! Marketing , Supplies , Career Apparel, Education/Traveling  are some of the biggest deductions !

All business expenses. Avoid taking deductions that you cannot back up with receipts.

I would suggest you consult a CPA or tax attorney.

The only thought that immediately comes to mind, which isn't technically 'advice', is to save and document all receipts for any and everything.  Our CPA or Accountant handles the details.

Depends on your tax situation and how you are filing. Get advice from your tax advisor/accountant.

First,  unless one is trained to do taxes, any advice you might get may not apply to you.  Even though my degree was in accounting and I practiced for many years, I know that ONE person's tax situation can differ greatly from another's, so talk to your CPA or tax professional to get the most reliable information for you circumstances.

But as a guide, look to Schedule C to see the available types of tax deductions.  Also, document ALL of your expenses.  I cannot promise that all of it will be tax deductible, but its always better to give your accountant MORE information than less.

Good luck!

Deduct all business expenses (e.g. marketing, mls/brokerage fees, meals related to marketing (I think you only get 50% on that), mileage, phone, etc.

enter into quickbooks.

Avoid anything you can't back up.

Independent of that, speak w/ a CPA (e.g. mortgage tax deduction, health care, donations, etc).  Keep receipts.

Anything you aren't sure about, ask your CPA.

They are substantial.  Here is a link to a checklist provided by Inman.

You should consult with your accountant.

Business related expenses are deductible. I outsource this subject to my CPA/Attorney for decades now.  So far, so good

It is not possible to provide advice without even knowing what jurisdictions you may be subject to tax in.

deductions. Keep in mind irs watches reatlors deductions like hawks.

Your accountant should be able to advise. One typical is office in the home - provided you use this as your workplace.

Talk to an accountant.

Your CPA will provide the information you need.

This is more of a CPA question! I just send my expenses to her and she knows the best.

Stop by the library, there is a wealth of info on deducting the expenses of a small business.

Contact your accountant as there are many business deductions that you can write off.

That is an accounting question ... 

Find a CPA who believes in aggressive tax avoidance.