Right now, Amazon has the H&R Block's Deluxe + State tax software currently going for just $30 (down from $60).

CNBC Select has run more than a dozen tax software programs through their paces to find the best in a variety of categories.

For those who might be wondering, the programming language was created by Ross Ihaka and Robert Gentleman in 1993. Furthermore, note that most of the R libraries are written using R, but for others, C ...