The public charge ground of inadmissibility is often a significant obstacle for low-income clients applying for family-based immigration. But it is also a challenge for practitioners who are assisting in completing the affidavit of support. In this workshop we will review the exceptions to the affidavit of support requirements, how to calculate household size, how to measure current income, and the supporting documentation that must be filed. We will also review any recent changes or proposed changes to the definition of public charge under the current administration.