When Does Employment Actually Begin?

When does an employment relationship actually begin—at the moment a job offer is accepted, or only once the employee reports for work? Philippine labor tribunals were divided on the question. In Aragones v. Alltech Biotechnology, the Supreme Court resolved it, holding that the relationship is established upon acceptance of a definite offer, well before the start date. The implications for hiring practices, offer letters, and illegal dismissal litigation are significant.

This post breaks down what the Court actually held, the doctrinal distinction at the heart of the ruling, and what employers and job candidates should do differently in 2026.

The Facts: An Offer, a Resignation, and a Withdrawal

On April 1, 2016, Alltech Biotechnology Corporation offered Paolo Landayan Aragones the position of Swine Technical Manager–Pacific at a monthly salary of PHP 140,000, with a commencement date of July 1, 2016. Aragones signed and accepted the offer letter on April 18, 2016. Relying on that acceptance, he resigned from his existing job and severed ties with his previous employer.

In the meantime, Alltech’s head office allegedly implemented a global restructuring program in May 2016. On June 10, 2016—before Aragones’s start date—Alltech informed him that his position had been made redundant and abolished, and it offered a goodwill payment of one month’s salary. Aragones did not accept and instead filed a labor complaint, which proceeded as a case for illegal dismissal.

The Labor Arbiter ruled in his favor. The NLRC reversed, holding that no employment relationship existed because employment had not yet commenced on the start date. The Court of Appeals affirmed the NLRC, reasoning that the employment was conditioned on the position’s availability, which had been abolished before July 1. Aragones elevated the case to the Supreme Court.

The Core Holding: An Offer Accepted Is a Contract Perfected

The Supreme Court granted the petition and held that an employment contract is perfected the moment a definite offer is absolutely accepted and that acceptance is communicated to the employer. On these facts, perfection occurred on April 18, 2016—the day Aragones signed the offer letter—not on the scheduled start date and not upon execution of any later formal contract.

The consequence is that the laws governing the employer-employee relationship, including security of tenure and the protection against illegal dismissal, applied from that moment forward.

The Doctrinal Heart: Suspensive Period vs. Suspensive Condition

The most important part of the decision is the distinction it draws between the perfection of the contract and the commencement of the relationship—and the legal characterization of the future start date.

The Court of Appeals had treated the arrangement as subject to a suspensive condition: an uncertain future event (the continued availability of the position) on which the very existence of the obligation depended. The Supreme Court rejected that framing.

Instead, it held that the July 1, 2016 start date was a suspensive period—a day certain that was bound to arrive. A period of this kind affects only the demandability of the parties’ obligations, not their existence. Put simply, the start date merely postponed when Aragones had to report for work and when Alltech had to pay him; it did not suspend whether an employment relationship existed at all. That relationship already existed from the moment of acceptance.

This is the analytical core that gives the ruling its force, and it is the distinction practitioners should master: a period defers performance, while a condition governs existence.

The Redundancy Defense That Failed

Having established that an employment relationship existed, the Court treated Alltech’s withdrawal of the offer as a dismissal that had to satisfy the requirements for an authorized cause—here, redundancy.

It did not. The Court found that Alltech’s redundancy claim was not supported by substantial evidence. A single, vague affidavit from a company officer was insufficient to prove that the restructuring program was genuine and that Aragones’s position had truly become superfluous. Consistent with established jurisprudence, redundancy cannot rest on a bare declaration; it requires adequate proof such as a genuine business rationale, fair and reasonable criteria for identifying redundant roles, and documentation showing the position was actually unnecessary.

Because Alltech could not discharge this evidentiary burden, the withdrawal amounted to illegal dismissal.

The Relief Awarded

The Court awarded Aragones backwages and separation pay in lieu of reinstatement, computed from his intended start date of July 1, 2016 until the finality of the decision, together with attorney’s fees. Notably, the reckoning point for the monetary award was the intended commencement date—reflecting the suspensive-period analysis, since that is when performance and payment would have become demandable.

What This Means for Employers

The decision should prompt a hard look at hiring and onboarding practices. Practical steps to consider include:

• Treat offer letters as binding instruments. Once a candidate gives absolute acceptance and communicates it, you are likely already in an employment relationship. Draft offers with that gravity in mind.

• Distinguish periods from conditions deliberately. If an offer is genuinely meant to depend on an uncertain event (for example, regulatory clearance, a passing medical exam, or successful background verification), say so expressly and precisely. A mere future start date will be read as a period, not a condition.

• Document before withdrawing any offer. If business circumstances truly change, a decision not to proceed must be backed by the kind of substantial evidence that would survive scrutiny in an illegal dismissal case. One thin affidavit will not do.

• Align HR and legal early. The window between offer acceptance and the start date is no longer a legal “no man’s land.” Decisions made in that period carry real exposure.

What This Means for Job Candidates

For workers, Aragones is a meaningful expansion of protection. A candidate who has given absolute acceptance to a definite offer is not merely a hopeful applicant—they may already hold rights as an employee. If an employer withdraws the offer without a valid cause and without observing due process, the candidate may have a viable claim for illegal dismissal and its accompanying remedies.

This is especially important for candidates who, like Aragones, resign from a current job in reliance on a new offer, only to have that offer pulled before the first day.

The broader takeaway is a reminder that Philippine labor law continues to construe the employment relationship protectively. The point at which an employer’s obligations attach has, in effect, moved earlier in the hiring timeline. Organizations that revisit their offer processes now will be far better positioned than those who learn the lesson in a courtroom

Disclaimer: This article was prepared with the assistance of artificial intelligence and may contain errors. It is intended solely for educational and informational purposes. It does not constitute legal advice, nor does it create an attorney-client relationship. Readers should note that the applicable laws and jurisprudence may vary depending on the specific facts of each case.

For advice regarding your particular circumstances, please consult our qualified legal professionals at Sun Law Office.

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