GTD for ADHD: The Parts Worth Keeping
You built the contexts, the someday list and the project register, and three weeks later the system needed more upkeep than the work it was meant to organise. Here is the stripped version that survives.
You read the book. You built the contexts, the someday/maybe list and the project register, and colour-coded the lot. Three weeks later the system needed more upkeep than the work it was supposed to organise, and you quietly went back to sticky notes and panic.
Getting Things Done is David Allen's method: capture everything into a trusted inbox, clarify each item into a concrete next action, organise those into lists, reflect in a weekly review, and then engage. The promise is a mind like water - nothing held in your head. For an ADHD brain that promise is exactly right, and the full implementation is usually far too heavy. The answer is not to try harder at it. It is to keep the three parts that carry all the value and drop the rest without guilt.
Why GTD suits ADHD in principle
It gets everything out of your head. Working memory is the weakest link, and GTD's founding assumption is that you should not be using it as storage.
The next-action rule kills vagueness. "Sort out the taxes" never gets started. "Find last year's return in the drawer" does. That is the same move as breaking a task down, applied to everything you own.
One inbox means no sorting at capture time. The moment a system asks "which list does this belong on?" while you are holding a fleeting thought, you have lost the thought.
The two-minute rule is genuinely good. If it takes under two minutes, do it now - closely related to the two-minute rule for starting.
Why the full system collapses anyway
Too many lists. Contexts like @calls, @errands and @computer made sense in 2001, when you could not make a call from your desk or shop from the sofa. Today they mostly generate sorting work.
The weekly review is a big ask. GTD depends on it completely, and it is a sixty-to-ninety-minute admin session with no deadline, no novelty and no reward - the exact profile of a task an ADHD brain will not do.
The setup becomes the hobby. Building a GTD system is novel, structured and satisfying. Running one is repetitive and dull. Guess which part gets four hours on a Sunday.
Maintenance debt compounds. Miss two weeks and the lists are out of date, which makes them untrustworthy, and an untrusted system is worse than no system - you go back to holding things in your head and you feel guilty about the app.
The three parts worth keeping
One inbox, always to hand. Not four. One place where anything lands in under five seconds - paper, a notes app, or quick capture in an app like Stedo, free to start. Capture has to be faster than the thought is fleeting, or it does not count. This is a brain dump turned into a continuous habit rather than an occasional event.
The next physical action. For each item, write the very next thing your body actually does. Not "plan holiday" but "open the airline site and check dates for the second week of July". This is the single highest-value idea in GTD for ADHD, because most of what looks like procrastination is an undefined first step wearing a disguise.
A short weekly look. Not the ninety-minute ritual. Fifteen minutes: empty the inbox, glance at next week's calendar, pick the two or three things that actually matter. Small enough that it happens - see the weekly review for a version built to survive.
What to drop
Contexts. Someday/maybe tiers. Project registers with sub-projects. Areas of responsibility. The Horizons of Focus and the whole altitude metaphor. All of it is coherent, none of it is where the value sits, and every piece is maintenance you will be paying for weekly.
If you genuinely miss one later, add it back. But only after the three parts above have run for a month without you rebuilding anything.
How this differs from a second brain
A second brain is the principle: one trusted external place, so your head has to hold nothing. GTD is one specific method for running that place, with its own vocabulary and workflow.
You can have the principle without the method, and most people who make this last long-term end up with a stripped-down GTD they no longer call GTD. That is not failure. That is the method working.
A week of stripped GTD
Today: pick your one inbox and empty your head into it. Everything, unsorted.
Every day: capture in under five seconds. Before you close the laptop, turn anything vague into a next physical action.
Friday or Sunday: fifteen minutes. Empty the inbox, look at the week ahead, choose two or three things.
That is the entire system. If it survives a month, you have something GTD never quite manages to give people - a version light enough that a bad week does not break it.
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Frequently asked questions
What is GTD, in one paragraph?
Getting Things Done is a productivity method from David Allen built on five steps: capture everything into a trusted inbox, clarify each item into a concrete next action, organise those actions into lists, reflect on the whole system in a weekly review, and engage with the work. The underlying goal is that nothing is stored in your head.
Does GTD work for ADHD?
The principles do; the full implementation usually does not. Externalising everything and defining a next physical action are extremely useful with ADHD. The contexts, the many lists and the ninety-minute weekly review create more upkeep than most people can sustain, and an out-of-date system is worse than none because you stop trusting it.
What is a next action, and why does it matter so much?
The very next thing your body physically does - not the project, not the goal. "Renew the insurance" is a project; "find the policy number in the email folder" is a next action. It matters because a large share of what feels like procrastination is really an undefined first step, and defining it removes the need for any extra motivation.
Do I need the full weekly review?
No, and insisting on it is how the whole system dies. Fifteen minutes that actually happen beats ninety minutes that get skipped for a month. Empty the inbox, look at the coming week, pick two or three priorities. Add depth later only if the short version has become automatic.
