In most instances, the revocable trust is ignored for federal income tax purposes during the grantor’s lifetime. The income and deductions are reported directly on your individual income tax return. The trust will use your social security number as its tax identification number.

A revocable trust becomes a separate entity for federal income tax purposes when it becomes irrevocable, or stops reporting income under your social security number for any other reason. The trustee is then required to file an annual fiduciary income tax return. Taxable income, deductions and credits are determined in much the same way as for an individual. Trusts are also allowed a deduction for distributions to beneficiaries. In this way, the trust passes on income and deductions to the beneficiaries to be taxed on their personal income tax returns. Income that is not distributed to the beneficiaries is taxable to the trust.