Short answer. No. Article 183 requires contributions under this Title to be paid in their entirety by the employer, and declares null and void any contract or device for deducting any portion of them from the wages or salaries of employees. A payslip line charging you for it has no legal basis.
What the law says
Contributions under this Title shall be paid in their entirety by the employer and any contract or device for the deductions of any portion thereof from the wages or salaries of the employees shall be null and void.
Labor Code, Article 183 — Employer Pays The Contributions. Read the full provision →
The cost belongs to the employer, entirely
Article 183 leaves no room to share the burden: Contributions under this Title shall be paid in their entirety by the employer and any contract or device for the deductions of any portion thereof from the wages or salaries of the employees shall be null and void. Notice the two words the drafters chose. Entirely forecloses splitting the contribution. And device reaches past a straightforward deduction to any arrangement engineered to reach the same result — a matching charge under another name, a recovery folded into an allowance, or a clause signed on hiring.
Your consent does not make it valid
Employers sometimes answer a complaint by pointing to a signed authorisation. The article anticipates that: the offending contract or device is null and void, not merely voidable at your option. A void arrangement produces no rights, so an employee who signed it is not bound by having signed and is not estopped from raising the point later. This is one of the places where labour legislation deliberately overrides what the parties agreed, because a term extracted at hiring is not a real bargain.
Check what the line item actually is
Before treating it as a violation, read the payslip closely. Employees do contribute to other statutory schemes, and a deduction for those is lawful and ordinary; the employees' compensation contribution under this Title is the one that must be borne wholly by the employer. Payroll systems abbreviate, and a heading can be inaccurate while the underlying remittance is correct. Ask the payroll officer to identify precisely which contribution the line represents, and to show the corresponding remittance.
What to do about it
Keep the payslips showing the deduction, over as many periods as you have, since the pattern matters more than a single month. Raise it in writing with payroll or human resources and keep their reply, whatever it says. The article also sets when the employer's obligation to contribute ends — at the end of the month of the contingency and during months when you are not receiving wages or salary — so a deduction taken while you were unpaid is worth flagging as well.