i just went thru this experience. if it is a laptop, no tax. if the computer is more than 6 months old it is treated as being personal effects and taxed as such (300 pesos or so, depending upon its weight). If it is less than 6 months old it is considered new and then taxed at about 30% of the value of it, DR customs assesses the value of the machine also, and if you have no proof of the age of the machine they also assess if it is over 6 months old.. Another thing.. If they assess it to be worth over 2k then they can take it for an additional 4-6 days from you as you fill out the additional stack of importation paperwork. I recommend bringing along proof of when you purchased it along with the original receipt.. If you don't have this bring along something which shows the value of the machine.. I'd bring along this info even if it is over 6 months old just for safetys sake..