Taxpayers who donate a computer or other technological equipment to educational institutions in Louisiana are allowed a credit of 40 percent of the value of the property donated (R.S. 47:37). The recipient certifies the donation of property by using Form R-3400 the Certificate of Donation available on LDR’s website. You must attach the completed certification form to your return. On Line 3A, enter the value of the property donated to an educational institution in Louisiana. Multiply the amount on Line 3A by 40 percent and enter the result on Line 3B. Round to the nearest dollar.