How does one start from square one on claiming and paying taxes

[Michael H.]

Hello again BP family,

Ive got a hot one here, My younger brother has operated a construction style business for several years now...under the table. After my repeated nagging, and teaching him what opportunity costs are when he cant take profits into the stock market or real estate, hes now ready to do the right thing.

I gave him books like the tax and legal play book by Mark J Kholer, I can advise him on what to do once hes made money but I cant seem to find a step by step starters guide on the very basics of claiming and paying his taxes.

Any Book recommendations?

Thanks!