What kind of loan are you looking at? If you are trying to do a QM balloon mortgage under 1026.43(f) as a small creditor, you can ignore Appendix Q and the balloon payment (see 1026.43(f)(1)(ii)). If you're not a small creditor or don't care about making a QM, Appendix Q can be used as a guide, but it's not mandatory to use it. For non-QM balloon loans, you look at 1026.43(c)(5)(ii)(A) and use:
(1) The maximum payment scheduled during the first five years after the date on which the first regular periodic payment will be due for a loan that is not a higher-priced covered transaction; or
(2) The maximum payment in the payment schedule, including any balloon payment, for a higher-priced covered transaction;...
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John S. Burnett
BankersOnline.com
Fighting for Compliance since 1976
Bankers' Threads User #8