To determine how often you must file see below.
"Monthly: Taxpayers who collect $500 or more in state sales or use tax in a month must file monthly. Monthly sales and use tax returns are due on or before the 20th day of the month following the month in which the taxes were collected. For example, the July return must be filed on or before August 20th.
Quarterly: Taxpayers who collect less than $500 state sales and use tax per month (or less than $1500 per calendar quarter) may file quarterly. Quarterly sales and use tax returns are due on or before the 20th day of the month after the end of the quarter in which the taxes were collected. For example, the first quarter covers January, February, and March, and the return must be filed on or before April 20th.
Yearly: Taxpayers who collect less than $1,000 in state sales and use tax per year may file yearly. Yearly sales and use tax returns are due on or before January 20th."
Info above is from this site.