For EIC purposes, there is a cap of 3 dependents.
The Parent Who Has Primary Physical Custody Has the Right to Claim the Child. Under IRS rules, the parent who has primary custody of a child has the first right to claim that child on their tax return.
The IRS defines a dependent as a qualifying child (under age 19 or under 24 if a full-time student, or any age if permanently and totally disabled) or a qualifying relative. A qualifying dependent cannot provide more than half of their own annual support.
The short answer is no, you cannot claim yourself as a dependent on your tax return. This is because you are considered to have your own personal exemption.
To qualify as a dependent, your partner must have lived with you for the entire calendar year and listed your home as their official residence for the full year. If your partner has gross income above a certain amount ($5,050 for tax year 2024), you can't claim that person as a dependent.
Generally, the custodial parent—the parent with whom the child lives for the greater number of nights during the year—has the right to claim the child as a dependent on their tax return.