When Your Manager Doesn't Know Your ADHD: Working Without Telling

A manager sees you for a few hours a week. In those few hours, what they see can be this: your eyes drifting for a moment in a meeting, the report you said "I'll send today" arriving the next day, your not remembering a detail discussed three days ago, your forgetting to answer a message.

There are things they do not see either: how many times you returned to your desk at night to finish that report, how you rebuilt what was said after the meeting from your own notes, what you said to yourself inside about the detail you forgot.

Sometimes a person remains, in someone else's eyes, only marginal notes.

Today I run my own company, so I do not report to a manager. But in the years when I was trying to learn the work, I lived through periods when information was given in pieces and I was questioned about what I did not know, and I now reread those years through the lens of ADHD. This article is written from inside that rereading, for the reader who has not told their manager their diagnosis or does not want to.

You don't have to tell

Let me make this clear first. To whom and when you disclose the diagnosis is a separate and serious decision. I discussed the job-interview stage of it in this article and the general framework in the article on disclosing your diagnosis; I will not repeat it here. In the glossary the name of this decision is the disclosure decision.

This article is about what someone who has made that decision as "not for now" can do.

One sentence on the legal side: I cannot say anything definite about the sharing and confidentiality of health information at work or the right to request accommodations. For your own situation it is best to get up-to-date information from a lawyer.

The explanation your manager has

A manager sees a behavior and ties it to an explanation. If they do not know about ADHD, the explanations they have are usually these: doesn't care, doesn't pay attention, doesn't take this job seriously.

These explanations are wrong but not strange. From the outside, forgetting and not caring look the same.

There is a measured fact too: in a nationally representative sample of workers in the United States, 4.2 percent of participants met the criteria for ADHD, and ADHD was associated with an average loss of 35 days of job performance a year (Kessler et al., 2005). So what the manager notices is not imagined. Only the interpretation is missing.

Even if you don't say the diagnosis, you can say how you work. The manager's wrong interpretation often comes from an information gap.

Describing yourself without a diagnosis

The approach that works is to talk about the need, not the label. A few sentence patterns:

• "I'd like to confirm verbally discussed work as a written summary after the meeting, so that we both look at the same list."
• "When tasks come in at the same time I need to ask which comes first; if you make the priority clear I move faster."
• "I prefer to carry long tasks forward with interim deliveries, which also makes it easier for you to see progress early."
• "The first two hours of the morning are my most focused time; if possible let's not put meetings in those hours."

None of these sentences contains a diagnosis. All of them sound like a professional preference, and most of them make someone else's work on the team easier too. An expert consensus paper prepared on adult ADHD and working life also lists similar arrangements: a quiet room, flexible hours, headphones, regular meetings, structured breaks, reminders and written instructions (Adamou et al., 2013). In the glossary the cheapest one is called written instruction.

Being predictable

What made me think most about the relationship with a manager was this: managers often want predictability more than perfection. A job being late is bad; learning on the last day that it will be late is much worse.

This is exactly where ADHD struggles, because when the time slip is noticed the job is usually already late. That is why early warning has to be tied to a routine rather than left to a personal habit.

A short weekly meeting. Once a week, fifteen minutes. Three questions: what was finished last week, what is there this week, where am I stuck. A regular meeting makes it possible to talk about problems before they pile up. If your manager does not propose such a meeting, you can propose it.

A status sentence. Saying "the report is at seventy percent" never worked for me, because percentages, together with time blindness, always come out optimistic. Instead: "The data part is done, I've started on the interpretation, I'll send the draft Friday noon."

Bad news early, in one sentence. The moment I notice a date will slip, I write: "I can deliver this job Wednesday instead of Monday, and the reason is this." Bad news given early always does less damage than bad news given late.

Sentences for hard moments

Setting up a routine is one thing; knowing what to say in a sudden bind is another. For someone with ADHD the hardest moments are usually the ones where you are caught unprepared. A few patterns:

When you missed part of a meeting. "I didn't quite catch the last thing you said, could you repeat it in a sentence?" This sentence does not sound like a confession, it sounds like the question of someone listening carefully. Staying silent and guessing the missed part produces far greater confusion later.

When something you forgot comes up. "You're right, I missed this. I'll finish it by three today." No long apology, long explanation or belittling yourself. One acknowledgment, one concrete time.

When three jobs come at once. "I can do all three, but in order. Which one should come first?" Saying yes to everything at once is the shortest route to all three being late.

When a job is given verbally. "Let me confirm right away with a short message so I don't miss it." This sentence is the cheapest insurance against a verbal instruction being erased from memory.

The matter of trust

All of this gains meaning in a setting. In Edmondson's study with 51 work teams, psychological safety within the team, that is, the shared belief that you will not be punished for taking risks and making mistakes, was found to be related to learning behaviors; learning behaviors were in turn linked to performance (Edmondson, 1999).

This study is not about ADHD. But it suggests this: someone who can say their mistake, where they are stuck and what they need learns better and produces better work. In an environment where mistakes are punished, someone with ADHD learns mostly to hide. And hiding is the most expensive compensation strategy.

This trust cannot be built with every manager. This too has to be accepted.

Still, it is possible to build a little of the trust from your side. When you yourself report a small mistake, when you update a date early, when you do not hide where you are stuck, new evidence builds up in your manager's hands: this person gives notice when there is a problem. Over time the manager can stop reading every delay as a lack of intent, because your behavior offers them another explanation.

What if it doesn't work

Sometimes even if you build all this structure the relationship does not improve. Working with a manager who audits every step, does not read written summaries, and turns even news given early into blame is possible but very wearing.

At this point there are a few options and none is easy: disclosing the diagnosis through a more protected channel such as human resources or the workplace physician and asking for a formal arrangement, changing team or job, or holding on for a while and making your own plan. The expert consensus paper criticizes that occupational health services often step in only as a last resort and that cooperation between professions falls short (Adamou et al., 2013). So knowing that the support systems are not ready on this front either helps in understanding the limits of individual effort.

I should also say one thing openly. A systematic review of support for ADHD at work reports that most of the existing research evaluates medication treatment and that research on the effectiveness of interventions applied directly at work is limited (Lauder et al., 2022). That is why most of the suggestions in this article come not from controlled studies but from expert opinion and experience.

Your own working note. Write a one-page note: at which hours do you work best, through which channel do you want to receive work, how do you prefer to break up long jobs, how will you give notice when you are stuck. You do not need to write a diagnosis. Write it first for yourself; decide later whether to share it with your manager. Even writing it clarifies what you need.

Your manager may not know about your ADHD. Your knowing your own way of working closes most of that gap. You can find the broader list of the arrangements side in the article ADHD at work and accommodations.