Line 74 is simply adding lines 64-73 each of which is already rounded to the nearest dollar per IRS rules so line 74 is not rounded at all.
The 8962 rounding was an issue in 2016 since each month was rounded prior to adding instead of adding first and then rounding. The workaround for that was to adjust the monthly amounts entries so that the totals are correct taking into account that TurboTax rounds first and then adds instead of the other way around.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
