Benefits are made available based on the last two digits of the head of household's Social Security Number (SSN).
If the last 2 digits of SSN are:
00-04 = benefits available on the 1st of the month
05-09 = benefits available on the 2nd of the month
10-14 = benefits available on the 3rd of the month
15-19 = benefits available on the 4th of the month
20-24 = benefits available on the 5th of the month
25-29 = benefits available on the 6th of the month
30-34 = benefits available on the 7th of the month
35-39 = benefits available on the 8th of the month
40-44 = benefits available on the 9th of the month
45-49 = benefits available on the 10th of the month
50-54 = benefits available on the 11th of the month
55-59 = benefits available on the 12th of the month
60-64 = benefits available on the 13thof the month
65-69 = benefits available on the 14th of the month
70-74 = benefits available on the 15th of the month
75-79 = benefits available on the 16th of the month
80-84 = benefits available on the 17th of the month
85-89 = benefits available on the 18th of the month
90-94 = benefits available on the 19th of the month
95-99 = benefits available on the 20th of the month