In the bustle around Parnassusweg, where international employees cycle past daily and rents rise sky-high, a divorce can suddenly require extra calculations. As of 1 January 2026, the Expert Group on Maintenance Standards adjusts the TREMA tables. Three concrete changes affect both new and ongoing cases.
The TREMA Guidelines at a Glance
TREMA does not constitute legislation but serves as a widely applied calculation method by family court judges. The Expert Group, comprising judges, lawyers and academics, updates the tables. Judges generally follow these guidelines; deviations require clear reasoning.
Increase of the Social Assistance Norm
The amount a maintenance debtor must retain at minimum rises by approximately 3.8 per cent. For a single person without children this amounts to around € 1,230 per month. Those with a low income therefore retain slightly less to pay maintenance.
Non-attachable Income and Housing Costs in the City
The standard amounts for unavoidable expenses are increased. Net rent or mortgage interest rises to € 905, health insurance premiums to € 178 and child-related costs to € 96. For middle-income earners in Amsterdam, who often face high housing costs, this may slightly reduce the final maintenance amount.
IACK and Co-Parenting
The income-dependent combination tax credit (IACK) decreases from € 2,694 to € 2,481. Working parents in a 50/50 arrangement notice this most. Their net disposable income changes and, with it, their capacity to pay maintenance.
Consequences for Your Situation
A change of more than ten per cent in net disposable income may justify revision under Article 1:401 BW. At the Rechtbank Amsterdam you can submit a new application when the updated tables so warrant.
Ongoing Proceedings at the Rechtbank Amsterdam
Cases still pending are usually already calculated using the TREMA 2026 figures. A lawyer can update the calculation; this sometimes results in a difference of tens of euros per month for the years ahead.
Assistance via Juridisch Loket Amsterdam and Online Tools
Official calculations may only be prepared by a qualified maintenance lawyer or mediator. The Juridisch Loket Amsterdam can provide initial information. Online calculation tools offer mere indications and are not binding in proceedings. For personal advice you may contact the Arslan office at Parnassusweg 220, 1076 AV Amsterdam (070 - 4500 300).