Deposits are being made to the accounts on file with the IRS from 2019 tax filings, which may differ from your personal account if you used a third-party service provider to file taxes in the past. Many Americans took advantage of promotional refund programs offered by third-party service providers in which the provider paid the refund directly to the individual, whether in part or in whole. When the refund was actually issued by the IRS, it was deposited into a special account set up by the service provider, so some individuals’ stimulus payments are going to those third-party providers’ accounts.
If you filed your 2019 tax return with such a provider, you will need to contact that provider directly to find out if they have received a stimulus payment that was intended for you or your family.