Do you work alongside benefits? Then the 'income accumulation scheme' from the WWB applies. You may retain 100% of your benefits with income up to the benefit level. Above that, the excess is deducted: fully up to 150% of the norm, then 50%. For part-time workers, there is an 'accumulation period' of 6 months in which extra income counts less heavily.
Example: with €1,200 gross income (single person) you retain €1,140.71 benefits minus €59.29 (the excess), so €1,081.42 total. Self-employed persons report quarterly profit; average income is taken into account. Partner income is halved in the calculation.
The Participation Act encourages work: municipalities offer trajectories with retention of benefits. Reporting is mandatory via Werk.nl. Failure to report? Recovery plus 100% fine. In 2023, 15% of benefit recipients stopped due to work income. Combine with allowances for maximum benefit; calculate via Nibud-tool.