The National Institutes of Health (NIH) is the largest public funder of biomedical research worldwide, investing most of its nearly $48 billion budget in research to improve human health and reduce disease and disability. NIH-funded research has led to numerous breakthroughs and the development of new treatments, laying the foundation for scientific discovery and longer, healthier lives.

NIH offers various funding opportunities, including grants and contracts, to support different types of research projects. Grant applications require submission of relevant documents, such as reference letters, by deadlines based on the applicant organization's local time.

To support research careers, NIH provides Loan Repayment Programs that repay up to $50,000 annually in qualified educational debt for researchers committed to NIH mission-related research.

Recipients of NIH grant awards must comply with the NIH Grants Policy Statement unless specified otherwise in their award notices. Additional guidance and resources for navigating the NIH grants process are available for new applicants.