Transfer Taxes    

The transfer tax is subject to notary and municipal fees. Notary fees are based on the price in the contract or the book value of the property at varying rates, with the maximum being BGN 3, 500. In addition, 2% of the market value of the property is paid to the municipality in which the property is located. 

Local Taxes and Rates

The owner of a building or a plot is obliged to pay a real property tax. Where a building is built on a State or municipal plot, the value of

the plot will also be included in the tax base. The tax is equal to 0.15% of the book value of the property.  In addition to the real property tax, owners also pay waste-collection fees.

All fees and taxes are not permanent and they might be changed by the time you sign  the notary deed  so you have to check them right before signing .Seems  they tend to increase and depend on the government.

VAT

Transfer of ownership, leasing, or transfer of rights in rem over buildings located in Bulgaria is a VAT able transaction and is subject to VAT at the standard rate of 20%.

Basic steps to purchase the real estate
1.To negotiate - the purchase price is freely negotiable
2. Verbal agreement for purchasing.
3. Preliminary contract.
4. Notary deed.

And you become the proud owner of your property in Bulgaria!