Are you also due a state tax refund? If so, could that have been a state refund that you received?
You wrote: "The IRS website said I would get around $3600."
What does your return Form 1040, Line 20a show for the amount of your Federal refund?
So the IRS reduced it from approx. 4511 to 3600 but only sent around 2300?
If you also chose to pay any TurboTax fees out of the refund, that fee bill would be taken out of it, too, but that wouldn't account for that large of difference.
If the IRS reduced your refund, you should get a letter from them in about 3 weeks or so explaing why. Watch for my answer below which will also tell you how to phone the IRS to ask them about it.
Yes the original amount was 4511 then they reduced it and the approved refund amount was 3600 but the deposit made to my checking was 2300
If the IRS decreased your Federal refund, you should get a postal
letter from them in about 3 weeks or so explaining why your Federal refund
is less than what you filed. The letter should also tell you steps you
can take if you disagree with their decision, including a contact number
for you to phone them if desired. The following help article will tell
you a bit more about possible causes, how to check for any offsets,
etc.
https://ttlc.intuit.com/questions/1894477-why-did-my-federal-tax-refund-decrease-after-i-filed
The IRS has said:
"Examples
that could decrease your refund include math errors, mistakes,
delinquent federal taxes, state taxes, child support, student loans or
other delinquent federal nontax obligations, and when the IRS withholds a
portion of your refund, if further review is needed."
If you
want to talk to the IRS before you receive the letter to see if you can
learn anything, here's how: 800-829-1040 hours 7 AM - 7 PM local time
Mon-Fri