Yes, in general adding additional tax deductions usually increases a refund, or doesn't change it.
First of all, please doublecheck to make sure that is a refund and not a balance due showing.
If your additional deductions are tax preference items, they may increase your tax if they are triggering Alternative Minimum Tax (AMT).
For AMT, only home acquisition debt is deductible. Unlike the general rules, you can't deduct older home equity debt from before 2018. Follow this link for more about AMT.
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