The obligation to make contributions begins when work starts and does not end while the employment relationship between the employer and the worker continues. It also continues during temporary disability, risk during pregnancy, risk during breastfeeding, maternity and paternity leave and trial periods for workers. The obligation to make contributions ends when employment ends, provided that the worker’s employment termination letter is filed within the following 3 calendar days. If the worker’s Social Security termination is presented after the 3 day deadline, the obligation to pay contributions continues until such time as the Social Security General Treasury receives notice of the end of employment, unless the interested parties can justify that this took place at an earlier date.