This is likely related to the maintenance supplement that was paid to recipients of disability and rehabilitation pensions under the old system, which was in effect until 31 August 2025. It is no longer paid from 1 September 2025. No exemption limits applied to that allowance, and all income affected the calculation, regardless of type. The maintenance supplement was intended to ensure a certain minimum level of maintenance for those who were entitled to a disability or rehabilitation pension from TR.

It is also possible that income exceeds the limits permitted to receive a basic pension, which causes related entitlements such as the home supplement to be cancelled.