If I set up a revocable trust and fund it with income-producing securities, does this lower my adjusted gross income?

Probably not. A revocable trust of which you are a trustee and beneficiary is a grantor trust. You are taxed on the income from this trust to the same extent that you would be if there were no trust. The trust doesn’t even need its own taxpayer identification number; your Social Security number can be used for the trust. Bottom line: Revocable trusts for the most part are not income tax saving devices.