Yes. On my form you add up all of the sales and get one total amount. And enter that total amount on the form. Then you will just pay tax on whatever that total amount is.
For instant if you sold 5 items (locally within the state):
gold watch: $5.00...from my store
gold ring: $5.00...from my store
blue hat: $5.00...from my store
red hat: $5.00...on ebay,but within state
white hat: $5.00...on ebay, but within state
total sales to put on tax form: $25.00
Then you will pay tax at whatever your tax rate is. Mine is 7%.
total state sales: $25.00
tax rate: 7%
total tax: $ 1.75
amount I have to pay state: $1.75
What ever you sell WITHIN your state, wether it is sold from your brick and mortar store, from your garage or from ebay, you add all of those up and get a total and pay the tax rate on that total amount...
Last week I had $980. in internet sales. I had one sale in that amount that was within my state for $27.00.
At the end of the period, I will add just that
$27.00 to my total on the tax form. The remaining $953 I wont pay state tax on...