Does a nonprofit (not for profit) organization need to have an independent review and/or audit of its financial statements?

What is the future of a cryptocurrency developer?

What are the some available defenses against product liability claims?

Which washer/dryer will qualify for an energy-efficient tax credit?

Is commission rebate from the buyer's Realtor to the buyer a taxable income? Transaction was done outside of the escrow and 1099-Misc (Box 7) was issued to the buyer following January. 1) is this taxable income for the buyer and 2) if so, is he responsible for SE taxes as well?

What is the best way to save credit card surcharges?

Is a credit card statement considered a viable replacement of a receipt for income tax documentation of expenses or are credit card slips still required?

I am doing freelancing for two different companies and I have several questions. I deliver for them digital files, such as research, PowerPoints or excel files. Do I need to add sales tax to the invoices? When and how do I file taxes? I have never worked before in California and just started working in October last year.