Millennials are more fearful of filing taxes than most Americans, according to a new survey.

The survey, by the personal finance site NerdWallet and conducted by Harris Poll, found 80 percent of taxpayers in the 18- to 34-year-old age group report concerns such as making a mistake and not getting a full refund or paying too much, compared with 60 percent of adults aged 55 and older. Approximately a third (34 percent) of millennial taxpayers said they turn to friends or family with questions instead of tax professionals (27 percent) or online sources (20 percent).

Millennials also have a higher rate of mailing paper returns than taxpayers aged 35 and older (17 percent compared to 8 percent). The most popular way to file taxes last year across all age groups was tax software, with 36 percent of millennial taxpayers using this method, compared with an average of 35 percent for all age groups.

To read the rest of the survey results, click here.