Have you declared your income and are you prepared to pay tax ?   Not yet . I don't know how to fill out the form . What is the tax-free allowance for supporting a dependent ?   I don't really know . Why not ask the accountant or the lawyer of the law firm ? They will tell you which is subject or not subject to taxation . He can even help you avoid paying tax legally .   If I don't pay my taxes , would the tax officials discover it ?   Certainly . No one who evades tax can escape from their detection.They ' ll check your income through computers . You'd better make a declaration to the tax authorities as soon as possible . If you fail to meet the deadline , you will be fined . 