What is the difference between daily and weekly accounts

The difference between IRS daily and weekly accounts is when information posts to the master file.  According to the IRS Manual, our users have read that daily accounts post within 4 days and weekly account post within 7 days.

Most taxpayers will fall into the daily “accelerated” processing. If you are in a weekly account, your refund will “post” within a week of being accepted and your DDD will be scheduled for the following Thursday. Account conditions that prevent accounts from being marked daily are conditions such as (list is not all inclusive):
1. ITIN Accounts
2. Foreign Addresses
3. Campus Addresses
4. Identity Theft Indicators
5. Prisoner File
6. Related MFT 31 Account (e.g., Bankruptcy, Offer-In-Compromise, Installment Agreements, Innocent Spouse)
7. Criminal Investigation Activity
8. Civil Penalty Account (MFT 55)
9. Tax Module History (two years prior) with CI, Exam or Collection Activity