Is it easy to determine how a refund would change if a single dependent deduction was not claimed?

[g-merrick]

With one dependent my federal refund was $3247. How would it differ if I claimed no dependents?

[MinhT1]

In general, if you claimed a dependent (not a child under 17), then you get the Other Dependent credit of $500. Without that dependent, your refund would be lower by $500.

[Opus 17]

A qualifying child dependent is normally worth a $2000 tax credit. A qualifying child dependent is someone who is your own biological or adopted child and who lives with you more than half the year and is under age 17.  Any other dependent is worth a $500 credit.

if your qualifying child dependent is also a qualifying person for head of household status, and you remove that dependent and don’t have any other qualifying person for head of household status, then you would need to file as single or as married filing separately, both of which have higher tax rates than head of household and would cause additional tax to be owed.

[Texas Roger]

If you are getting Earned Income Credit, it could also be less without claiming a dependent. As you can tell from all these answers, there is no way to tell you exactly how your refund would change without knowing details about your tax situation. 

[Anonymous]

delete the dependent and see may be the easiest way. we know nothing about your filing status or your dependent so we can't say exactly what will change. make sure that all data for that dependent is cleared out such as dependent care. if you have an HSA this could be affected.   then after your satisfied add the dependent back.