Do NOT wait for your 2015 amendment to be processed before you file 2016 - it can take up to 4 months for amendments to be processed, so you do not want to wait and you are not required to wait. And, yes, you will want to use the information from your amended return to compute your 2016 return as you may have carryover losses or similar items that need to be applied to 2016. One caveat: You will use your original 2015 AGI amount when you are asked to verify this information for e-file, not your amended amount.