The flat 21% federal income tax rate for C corporations under the Tax Cuts and Jobs Act (TCJA) has been great news for these entities and their owners. But some fundamental tax truths for C corporations largely remain the same: C corporations are subject to double taxation Double taxation occurs when corporate income is taxed once at the corporate level and again at the shareholder level as dividends are paid out. The cost of double taxation, however, is now generally less because of the 21% corporate rate. And double taxation isn’t a problem when a C corporation needs to retain all its earnings to finance growth and capital investments. Because all the earnings stay “inside” the corporation, no dividends are paid to shareholders, and, therefore, there’s no double...