I already have a What-IF 2018 set op for MFJ and two young kids (The CTC does depend on their ages)
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Closer to $8700 tax...assuming it's all W-2 income or ordinary income (no capital gains)
[Edited based on discussion below]
With the vehicle credits being used up first, and ordinary income right at 100,000, the 7500 credit matches your tax, with the refundable part of the child tax credits remains...thus a refund of ~2,800 (along with any other withholding you had done during the year).
This does assume you are using the 24,000 Standard deduction in 2018.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
