The real property being transferred is presently subject to an outstanding credit line mortgage. However, no tax is due for the following reason: a.The purpose of a Secured tax sale is to return tax defaulted property back to the tax roll, collect unpaid taxes and convey title to the purchaser. Realty Transfer Tax is due when you present the sale document for recording. These annual property-tax bills cover the period from July 1 to June 30 and reflect the assessed value of the property as of January 1st. Below you will find links to useful forms and documents for easy and convenient access. If you received a Form 1099S, start with the amount of real estate tax you actually paid in the year of sale. Use the SEARCH BAR above to find your form more quickly. Just type in the name of the form. Taxpayers should use these forms and guides to apply for local tax abatements and exemptions and file property returns.