my $dob_dt;

    $borrower{'dateofbirth'} =

    $dob_dt = eval { dt_from_string( $borrower{'dateofbirth'} ); }

        eval {

        if ( defined( $borrower{'dateofbirth'} ) );

          output_pref ( { dt => dt_from_string( $borrower{'dateofbirth'} ) , dateonly => 1, dateformat => 'iso' } );

        };

    $borrower{'dateofbirth'} = output_pref ( { dt => $dob_dt, dateonly => 1, dateformat => 'iso' })

        if ( $dob_dt );