Are deadline extensions ever considered reasonable for ADHD?

Yes. Deadline extensions are a well recognized accommodation for ADHD when time blindness, pacing, or task initiation are documented challenges. Effort and intention may be present, but the ability to estimate time and sequence tasks can be impaired. Clinicians usually recommend extensions as part of a structured plan rather than open ended flexibility. This helps maintain accountability while reducing unnecessary stress. Extensions are not about avoiding work. They are about aligning expectations with how the brain processes time and workload.