A number of employees have already been informed that they've lost their job
Some staff at the social media company's Dublin offices have been informed that they have lost their job, as part of plans to cut up to half of its global workforce.
Offices have been temporarily closed, while staff who have lost their jobs will receive an email to their personal accounts to outline the next steps.
Twitter had been expected to tell employees by email today about whether they have been laid off.
The social media company said in an email to staff that it will alert employees by 4pm in Irish about staff cuts.
It follows a week of uncertainty about the company's future under new owner Elon Musk.
Around 500 people are employed at Twitter's Dublin office.
However, one solicitor says that Twitter's redundancy process may be in breach of Irish law.
Employment law solicitor Richard Grogan says companies have to enter a consultation process if they're laying off staff: