Yep. Remember that it could only be a gain situation. Losses are disallowed in like-kind exchanges (You would “bury” the loss in the basis of the new asset).
For me, I do a journal entry when I think of basis:
DR boot rec'd
CR boot paid
DR new asset (PLUG, this is your new BV or basis)
CR Old asset (BV)
CR Gain (this is the lesser of gain realized OR boot received)
ex:
give up car CV of 15k and FMV of 20k and 2k cash for a car with a FMV of 20k and a trailer worth 2.5k.
Realized gain here is 5.5k (20k-15k = 5k gain on car + $500 gain on boot), recognized is going to be $500 (boot received – boot paid)
DR Boot rec'd $2,500
CR Boot paid $2,000
DR New Car (Plug) $15,000
CR Old Car (CV) $15,000
CR Gain $ 500
Another key concept to remember is that the basis of the new asset is ONLY going to change when there's a difference between the gain recognized and the boot received. This is when your recognized gain is LESS than the boot. This might save you some time on some questions.
Using Becker, Ninja Notes, and CpaReviewForFree
FAR - 87 (2/17)
REG - 89 (4/21)
AUD - 89 (5/31)
BEC - 89 (7/11)