1. Eligibility Criteria: To be eligible for the third stimulus payment, individuals must have a Social Security number, be a US citizen or resident alien, and not be claimed as a dependent on someone else’s tax return.

2. Payment Amount: The third stimulus payment is up to $1,400 for eligible individuals, $2,800 for joint filers, and an additional $1,400 per qualifying dependent.

3. SSI and SSDI Recipients Included: Supplemental Security Income (SSI) and Social Security Disability Insurance (SSDI) recipients are eligible for the third stimulus payment.

4. No Action Required: Generally, SSI and SSDI recipients do not need to take any action in order to receive their stimulus payment, as it will be disbursed based on the information available with the Social Security Administration (SSA).

5. Direct Deposit or Mail Delivery: The stimulus payments will be delivered either through direct deposit into a provided bank account or by mail in the form of a paper check or EIP debit card.

6. Payment Tracking: You can track the status of your payment using the IRS “Get My Payment” tool on their website.

7. Timing of Payments: Although many have already received their third stimulus payment, some SSI and SSDI recipients might still be waiting. The IRS is working to process payments for all eligible individuals as quickly as possible.

8. Garnishment Protection: Unlike the first two stimulus checks, the third round of payments are protected from garnishment for debts like unpaid taxes or child support.

9. Past-Due Payments: Stimulus payments do not count as income; thus, receiving them will not affect your eligibility for SSI or SSDI benefits.

10. Tax Filing Requirement: While tax filing is not generally required for SSI and SSDI recipients, some individuals may be asked to file a 2020 tax return to claim a missing stimulus payment through the Recovery Rebate Credit

11. Non-Filers: For non-filing SSI or SSDI recipients who have not received their third stimulus payment, be on the lookout for updates from the IRS or SSA on additional steps you may need to take in order to receive your payment.

12. Future Payments: As of now, there are no concrete plans for a fourth stimulus check. However, keep yourself informed about any potential updates or changes regarding future relief payments.