self-certify
/ˌselfˈsɜːtɪfaɪ/verb
with obj.
1- Brit. attest or confirm (one's financial standing) in a formal statement〈英〉（以正式声明形式）证明（个人财产状况）：
if you wish to self-certify your earnings, you will have to supply accounts for the year.
如果你想证明你的收入, 你必须提供该年度的账目。
1.1
- as adj. self-certified(of a loan or mortgage) obtained as a result of attesting or confirming one's financial standing in this way（贷款, 抵押借款）以自我证明方式取得的。