Transfer tax while buying a house

No, the transfer tax you paid at closing is generally not deductible as a real estate tax on your income tax return. While property taxes (which are based on the assessed value of your home) are deductible if you itemize, transfer taxes and recording fees are considered "settlement costs." 

You should still keep a record of these costs, as they are part of your cost basis. When you sell your home, the basis of the house plus improvements will be deducted from the sales price when computing your gain.

See this helpful article to find all the ways you can save money on taxes this year Tax Breaks and Home Ownership

Yes, the rule still applies to your situation. The transfer tax is always added to the cost basis of the property and becomes part of the purchase price as well as other closing costs. The link provided by our Tax Expert @MindyB has valuable information and is posted here again for your convenience.   Tax Breaks and Home Ownership

Government Recording and Transfer Charges 

• Recording fees
• Title Charges
• Lenders Title Policy
• Settlement or Closing Fee (Includes Transfer fees)
• MLC - Municipal Lean Certificate
• Title Exam
• Owners title Insurance

You can include these closing costs and add them to the cost basis of the property.

Loan charges - Loan charges are part of the loan, not cost basis

• Application fees
• Lender fees
• Appraisal Fee
• Inspection Fee
• Condo Questionnaire
• Credit Report
• Debt Report

You can't include in your basis the fees and costs for getting a loan on property.

@ceseker