the answer to your last question is yes.
...However, like everything else in Reg. Z, there can be exceptions to that rule of thumb--depending on the terms of the legal obligation between the parties. From Section 1026.18(g), OI #1: "The payments
may include amounts beyond the amount financed and finance charge. For example, the disclosed payments may, at the creditor's option, reflect certain insurance premiums where the premiums are not part of either the amount financed or the finance charge, as well as real estate escrow amounts such as taxes added to the payment in mortgage transactions." Section 1026.18(h), OI #2 goes on to say: "The total of payments is the sum of the payments disclosed under §1026.18(g)."