The fake PIN u sell with will sell u out. They will verify the inputs claimed by ur clients and possibly do a formal audit on them. Then next will be ur a$$, u'll be sent a letter of intention to audit and provide u with a list of the items they want to see physically and that includes ur fake invoices....u can go to jail my friend for forgery and tax evasion and have ur biz auctioned and bank accounts frozen. Cheza poa, do the right thing