I am spending way more time comparing 2017 and 2018 returns to explain why their refund is lower than last year and then adding back the lower withholding amount to show that their refund would have been higher if the same amount was withheld. Most get it but a few clients are still clueless!
Also having some issues with clients who were able to deduct medical expenses but are precluded because of $24,000 standard deduction MFJ. This one family had 7 members so their exemption was $29050 last year and on top of that they were able to deduct medical expenses. With the loss of personal exemption amount they were feeling the pain!
I must have spent an addition hour trying to explain it