[waegawegawe]

I'm not so sure about that. Citation? I believe in general (at least in the US), it would be really unusual for a corporation to get a tax break for money that was never theirs. The chief factor in how corporations are taxed in the US is their domestic profit. Whether you donate to charity or light it on fire, it shouldn't matter at all to the corporation's profit, and therefore it shouldn't matter to their taxes.

I'm happy to be convinced otherwise, though. Let me know.