(Undated)  --  With the federal income-tax deadline looming, a study by finance-and-lifestyle website WalletHub.com shows Oregon is barely in the lower tier of states when it comes to overall tax burden.  The data in the report measures the exact proportion of total personal income that residents pay toward state and local taxes.  Oregon comes in at 27th, with WalletHub analysts determining the state's overall tax burden is more than eight percent, including a four-percent state income tax.  New York ranks as the state with the heaviest overall tax burden, while Washington is 33rd and Delaware ranks 50th.