Federal Refund

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https://sa2.www4.irs.gov/irfof/lang/en/irfofgetstatus.jsp

SSA - Social Security Administration
http://ssa.gov/

FASFA - Federal Student Aid
http://www.fafsa.ed.gov

FEMA - Federal Emergency Management Agency
http://www.fema.gov/index.shtm

State Refund

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https://webapp.ftb.ca.gov/refund/login.aspx?Lang=en-US

California - Secretary of State
http://www.sos.ca.gov/

California - Unclaimed Property Search
http://scoweb.sco.ca.gov/UCP/