Quick response
In SIROC, register the project with accurate data and report the relevant incidents throughout its lifecycle: updates, suspensions, resumptions, or completion. Keep contract, location, dates, personnel, contractors, contributions, and acknowledgments under a single file.
Register the project in SIROC and manage incidents, contractors, personnel, contributions, and acknowledgments from start to finish.
Confirm the applicable deadline
The type of project, participation, and event determine the obligation. Verify official information before submitting.
SIROC is a cycle, not a form
SIROC allows registering projects and reporting incidents to the IMSS. Control begins with consistent data between contract, location, amount, dates, and employer.
During execution, suspension, resumption, update, or completion, documentation must be provided as appropriate. The file must link project, personnel, subcontracts, contributions, and acknowledgments.
SIROC file
- Contract and project location.
- Type, amount, area, and dates.
- Employer registration and responsible parties.
- Contractors, personnel, and payroll.
- Acknowledgments of registration and incidents.
Case: the project scope changes
A project expands its area and pauses for two weeks. The responsible party documents the change, reviews the applicable incident, updates the file, and keeps the acknowledgment. Payroll and contractors use the same identifier and period to avoid disconnected reports.
SIROC must follow the real life of the project; registering only the start and ignoring incidents breaks traceability.
— Fintax
Flow from opening to closing
- Define subject and responsible party.
- Gather project data.
- Register and validate acknowledgment.
- Monitor incidents.
- Close by reconciling personnel and contributions.
Events you must control
| Event | Critical data | Evidence |
|---|---|---|
| Start | Date, location, and amount | Contract and acknowledgment |
| Update | Actual change | Agreement and registration |
| Suspension | Period and cause |
Frequently asked questions
Who registers the project?
It depends on the participation and obligations of the employer; define responsible parties from the contract.
What happens if the date changes?
Evaluate and report the applicable incident; keep support and acknowledgment.
Does SIROC replace payroll and contributions?
No. It must be reconciled with movements, payroll, and social security payments.
Tracking errors
- Registering approximate data without a contract.
- Not reporting suspension or completion.
- Using different identifiers between areas.
- Saving only a screenshot and not the acknowledgment.
Sources and readings to continue
Consult official sources: official SIROC information, IMSS SUA, Federal Labor Law.
To complete the process within Fintax, review: SIPARE and contributions, payroll CFDI, compliance opinion.
What to do now
Turn this review into a file with responsible party, date, source, and evidence. If there is a material difference, an overdue obligation, or a decision that changes the calculation, validate the case with your accounting responsible before submitting, canceling, or paying.




