Tax refunds are
determined by the relationship between the taxes you owe on your income versus
the total of your withheld taxes and any refundable tax credits. There has
never been such a thing as a refund based solely on claiming a dependent.
If you are referring
to a specific tax credit, such as the Child Tax Credit or the Earned Income Tax
Credit, you would have to be certain that you met every requirement for that
credit. Please see IRS Pub.
17 Your Federal Income Tax, Chapter 31 et
seq., for details about qualifying for the various tax credits.
If you are referring
to the Personal Exemption, which was an amount subtracted from your income for
every person included in your tax return, those exemptions were eliminated by
the Tax Cuts and Jobs Act of 2017.