The Opposition is leading a debate on Concentrix, the company with the contract to administer tax credits.
MEPs debate last week's EU summit, relations with Belarus and Afghanistan, and take an initial position on next year's EU budget.
MLAs at the Education Committee hear from officials on the department's new budget and its consultation on area planning.
This week the communities, social security and equalities ministers are in the hot seats during portfolio questions.
Plenary notes the 50th Anniversary of the Aberfan Disaster, before proceeding with finance questions. There are also debates on the UK Government's Wales Bill, local government and on a youth parliament.
Some big-name MPs on all sides are keen to get a place on the newly formed Brexit committee.