Bank statements. One sort of financial record is a bank statement. Your bank will regularly send a statement containing information showing income (credits) and outgoings (debits) on your bank account.
They're synonyms. Gain is the most general. Attain usually means to reach a goal or milestone (he attained the rank of captain). Obtain usually implies careful planning or some effort to get to the thing or goal. But they have probably something like 80% overlap in meaning.
Attained Age. DEFINITION of 'Attained Age'. 1) The age at which the beneficiary of an insurance policy, retirement plan or other aged-dependent plan, is able to receive benefits or withdraw funds. Attained age can be any age at which benefits are received.