## Section 44AA — Compulsory Maintenance of Books of Account
Section 44AA prescribes when and which assessees must maintain books of account. The framework distinguishes between notified professions (stricter) and other businesses/professions.
### Notified Professions
The following are 'notified professions' under Sec. 44AA(1):
1. Legal
2. Medical
3. Engineering
4. Architectural
5. Accounting
6. Technical Consultancy
7. Interior Decoration
8. Film Artist
9. Company Secretary
10. Information Technology (IT) Professionals (Authorised Representative also included in extended list)
### Maintenance Requirements for Notified Professionals
(Detailed thresholds for notified vs. other businesses are typically covered in subsequent pages — the rule of thumb:)
- Notified professionals: If gross receipts exceed ₹1,50,000 in any of the three immediately preceding years (or expected to exceed in case of new profession) → must maintain prescribed books under Rule 6F (cash book, journal, ledger, bills, receipts, etc.).
- Below ₹1,50,000: maintain such books as enable the AO to compute total income.
### Why this section matters
Without proper books, the AO can resort to best judgment assessment, penalty under Sec. 271A (₹25,000), and the assessee loses presumptive benefits and standing in audit.