An IRA custodian is a financial institution, such as a bank, trust company, or specialized firm, authorized to hold and administer the assets inside an individual retirement account on behalf of its owner. Custodians handle recordkeeping, required tax reporting, and the administrative processing of contributions, distributions, and investment transactions, ensuring the account remains compliant with the rules that preserve its tax-advantaged status.
Not all custodians support the same range of investments. Many mainstream custodians limit accounts to publicly traded stocks, bonds, and funds, while a smaller group of specialized custodians are set up to administer self-directed IRAs holding alternative assets like private real estate, private placements, or promissory notes. The custodian does not typically evaluate or endorse the merits of a specific investment; that due diligence remains the account owner's responsibility. Investors looking to hold nontraditional assets inside a retirement account should confirm a custodian's experience with the specific asset type before opening or transferring funds into an account.
Further reading: Best Places to Invest $100K in 2026
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