Congrates on the move.
Taxes: (Gross minus expenses minus $12k) x 10% of $9,525 + 12% of the rest
FICA: Gross minus expenses x 15.2%
Those numbers will give you an in the ballpark payment, but then next year just pay 100%
of the previous year and you're good.
I don't know if you qualify for the Pass through tax break for small business, (you probably do)
That will lower your taxes even further.
Say $30k -$5k expenses=$25k-$12K standard deduction=$13k-$9,525= $3,475
10% x $9,525=$952.50 and 12% x $3,475 =$417 then $952.50+$417 =$1,369.50 federal tax.
If you do get the Pass through tax break, that would make your fed taxes about $800.00
Then the FICA tax will be $25k x 15.2% =$3,800
There is a deduction for half you FICA on your Federal taxes also.
It's complicated.
Very safe pay $5,200, taking the chance of a penalty pay $4,600
Pay 25% of that every quarter. Due April 15, June 15, Sept 17, and Jan 15, 2019
You must send in your tax payments quarterly, They are due 6-15-18 a week from now.
One check for the total due for that quarter.
You may have other deductions to lower your Fed tax, but your pretty
much stuck for the FICA tax, not really any deductions for that.
This is of the top of my head using your $30k.
I would have someone do your tax forms this year, then you can probably
follow that for next year.
I have a small simple business, but I still have about 40 pages of tax forms.