Jobs and Growth Tax Relief Act of 2005 - Makes permanent: (1) reductions in individual income tax rates enacted by the Economic Growth and Tax Relief Reconciliation Act of 2001 (EGTRRA); (2) reductions in individual capital gains and dividends tax rates enacted by the Jobs and Growth Tax Relief Reconciliation Act of 2003; and (3) the repeal of the estate and generation-skipping transfer taxes and reductions of the gift tax enacted by EGTRAA.