Is the trust revocable or irrevocable? Are you the trustee?
The tax implications of the withdrawal will depend on the type income that was generated within the trust and passed through to you and also whether the trust was terminated. For example, if the income was generated from taxable interest on bonds then you would report the income as interest on your individual tax return. Since you are the trustee, you are required to file Form 1041 and give yourself a Schedule K-1 itemizing the type of income your received. You would then report the income from the K-1 on your individual tax return.