What is the required written notice period before a contractor can stop working due to non-payment?

The required written notice period before a contractor can stop working due to non-payment is 7 calendar days. This period is established to ensure that all parties involved are given a fair opportunity to resolve any outstanding issues related to payment.

Providing a 7-day notice allows the contractor to communicate clearly and formally with the client about the non-payment issue, giving the client time to address it before the contractor takes the significant step of halting work. This notice requirement protects both parties: it ensures that the contractor is not abruptly stopping work without notification and provides the client a chance to remedy the situation.

In contrast, longer notice periods such as 15, 21, or 3 days would not align with the stipulated timeframe, making the 7-day notice the correct choice.