I was reluctant for many years to give up any of the data entry on tax returns, even though I had one or two employees (full time during tax season, part time the rest of the year) who had time and inclination to do it.  I eventually trained one of them to do some of the basic work, which allowed them to spot missing items.  I now have most of the "drop offs" and "mail ins" data entered by someone who can spot missing items and contact the client for an explanation.  It's also better to have two pair of eyes looking at all the numbers, not just mine for final review.  (I do all of the Schedule D items, that's just too complicated to explain, at least for me.)

Are you working alone?  That's like running a cafe by yourself.  It can be done, we had a recent discussion about that here, but it takes a certain skill.