Yes, it does work quite well. In case of doubts, you can book (again, online, with a digital certificate) an appointment with the local "hacienda" branch on on

Yes, it does work quite well. In case of doubts, you can book (again, online, with a digital certificate) an appointment with the local "hacienda" branch on one of the available slots and have a clerk filing it for you. The last time I was there, the clerk had me deduct the rent, when I didn't know I was eligible. I have childhood memories of my parents being immersed in files and files of esoteric looking forms filled with numbers for days on end, and dreaded filing my first taxes. Progress!