Get your taxes done using TurboTax

That's good planning.  You want to come out even or zero owed on your tax return.  You don't want to owe more and you didn't let the IRS hold your money all year interest free.  You got more net pay in your paychecks each month.  To get a larger refund you can increase the withholding you have taken out out of your paychecks.  But then you will get less pay.