It's totally dependent on the number of employees, and it's not compulsory to hire a PF consultant for PF work. The HR person should handle all PF work. Let's list out the PF work starting from recruitment:
1. Once a new staff member is recruited, fill out the Nomination form and submit it to the PF office for a PF number.
2. Monthly contributions are calculated based on the basic payout * 12% for employees & 13.65% for employers.
3. Yearly returns are to be filed in Form 3A & 6A.
4. Settlement of PF amounts in Form No. 19, 10c, or 10D.
You can find the PF checklist at the following link:
https://www.citehr.com/362459-pf-che...ml#post1670438.
If you need any clarifications, please let me know.