US Youth Soccer Federation has set the cut off date for the different age groups to be July 31. Yes, that is one month sooner than the cut off date for New Mexico schools. The table below shows the different age groups children would be in, depending on their birthday. To find what age group your child is, first find the year they were born on the left, then go across to the month. If you use your mouse to hover over the table, you will see the grid light up depending on where your mouse is.