Short answer. In instalments, as the work progresses. Where a task cannot be completed in two weeks, Article 103 requires payments at intervals not exceeding sixteen days in proportion to the amount of work completed, with final settlement upon completion — absent a collective bargaining agreement or arbitration award.
What the law says
That payments are made at intervals not exceeding sixteen (16) days, in proportion to the amount of work completed; That final settlement is made upon completion of the work.
Labor Code, Article 103 — Time Of Payment. Read the full provision →
Two conditions, working together
For work that cannot be finished inside a fortnight, the article imposes a pair of requirements: That payments are made at intervals not exceeding sixteen (16) days, in proportion to the amount of work completed; That final settlement is made upon completion of the work. The first sets the rhythm and the second closes the account. Neither stands alone. Paying something every fortnight but leaving the bulk to the end fails the proportionality requirement, and paying proportionately but at long intervals fails the timing one.
The arrangement this rules out
It disposes of the most common site arrangement: nothing until the job is done. Workers on long projects are regularly told that the money comes when the phase finishes, when the client releases the progress billing, or when the contract is closed out. The article does not contemplate any of that. It fixes the interval at sixteen days at most and ties each payment to work already completed, so the worker's pay tracks the labour actually rendered rather than the employer's own collection cycle.
What can displace these conditions
The conditions apply in the absence of a collective bargaining agreement or arbitration award. Those two instruments are named, and nothing else is. That is a meaningful limit: an individual undertaking between an employer and a worker to be paid on completion is not a collective bargaining agreement, and a payment schedule written into a project contract with a client is not an arbitration award. Where neither of the named instruments governs, the statutory conditions are the ones that apply, whatever the site arrangement has been.
What proportionality needs from the record
Because each payment is measured against work completed, the useful evidence is whatever shows progress over time: daily time records, accomplishment or progress reports, the schedule of works, and the payments actually received against each. Keep them together and in order. Where an employer disputes how much was completed by a given date, its own progress documentation is usually the material that answers the point — which is a good reason to note the dates and figures as you go rather than reconstructing them at the end.