Getting Things Done (GTD) explained simply: the 5 steps

What GTD is, in one paragraph

David Allen, a US productivity consultant, published Getting Things Done: The Art of Stress-Free Productivity in 2001 and a revised edition in 2015. The book’s promise is less about doing more and more about carrying less. Every open loop (an email to answer, a leaking tap, a vague plan to learn Spanish) quietly takes up attention until it is either done or parked somewhere you trust. GTD is a set of habits for parking those loops properly.

The 2015 edition renamed the five steps. In the 2001 edition they were collect, process, organize, review and do. They became capture, clarify, organize, reflect and engage. The substance barely changed; the new names are what you’ll see on the official GTD site today.

The 5 steps of GTD

Capture fails when you have too many inboxes. Keep as few as you can, but more than zero: most people need one on paper or in their pocket and one for email. Capture is covered in more depth in our time management tips.

Clarify is where GTD differs most from an ordinary list. You don’t just note “Car”; you decide that the next action is “Call the garage for a brake quote”. Our guide on how to make a to-do list shows how to write next actions.

Engage uses what Allen calls a four-criteria model, applied in this order: context (what can I do where I am?), time available, energy available, and only then priority.

The clarify flowchart

This is the decision tree at the heart of GTD, simplified from Allen’s book. Run each captured item through it once.

                 NEW ITEM IN YOUR INBOX
                          |
                "What is it? Is it actionable?"
                   /                     \
                 NO                      YES
                 |                        |
   ┌─────────────┼─────────────┐   "What's the next action?"
   |             |             |          |
 TRASH     SOMEDAY/MAYBE   REFERENCE   More than one step?
 (delete)  (review weekly) (file it)   → add to PROJECTS list
                                         (and still name the next action)
                                          |
                               Takes less than 2 minutes?
                                  /                \
                                YES                 NO
                                 |                   |
                              DO IT NOW     Am I the right person?
                                               /            \
                                             NO             YES
                                              |               |
                                          DELEGATE      Specific day/time?
                                      → WAITING FOR      /          \
                                                       YES           NO
                                                        |             |
                                                    CALENDAR    NEXT ACTIONS
                                                               (by context)

Two details make the flowchart work. First, a project in GTD is anything that needs more than one action, so “Organise Mum’s 70th birthday” is a project and “Text Leila to ask about the date” is its next action. Second, the calendar is sacred: only things that must happen on that day or at that time go there. If you fill it with wishes, you stop trusting it.

The lists GTD uses, and what contexts are

Contexts are how Allen splits the next-actions list: by the place, tool or person you need. Classic examples are @calls, @computer, @errands, @home, @office and “agendas” for things to raise with a specific person. The point is practical: when you’re in the car park with 15 minutes to spare, you look only at @errands. Many people now work mostly on one phone and one laptop, so place-based contexts matter less than they did in 2001. Some people find contexts based on energy (“low energy”, “deep focus”) or time (“under 15 minutes”) more useful today.

The two-minute rule, and why it makes sense

Allen’s rule is simple: while clarifying, if the next action takes less than two minutes, do it right away. Filing it, reading it again later and remembering what it was about would cost more than doing it.

Francis Heylighen and Clément Vidal, two researchers at the Free University of Brussels, offered a cognitive explanation in 2008. When you pick up an item, you’ve already built the mental context around it. If you file it for later, you’ll have to rebuild that context, which can take longer than the two minutes of doing it now.

Don’t confuse it with James Clear’s “two-minute rule” from Atomic Habits, which is about shrinking a new habit so it takes two minutes to start. Both are useful. They answer different questions. If starting is your problem, see our guide on how to stop procrastinating.

The weekly review checklist

Allen calls the weekly review the critical habit of the whole method: do it and the system lives, skip it and the system dies. He suggests early Friday afternoon, when you can still reach people at work. His own checklist, published by the David Allen Company, falls into three parts: get clear, get current, get creative.

Allen also describes six “horizons of focus”, from today’s actions up through projects, areas of responsibility, one- to two-year goals and three- to five-year vision to life purpose. You don’t need them to start. Look at them once a quarter if your lists feel busy but pointless.

What the research says (and doesn’t)

GTD is popular, but it hasn’t been tested the way a drug or a therapy would be.

• The main academic paper is theoretical. Heylighen and Vidal (2008), in Long Range Planning, argued that GTD fits theories of “distributed” and “situated” cognition: the brain leans on its environment as external memory and as a trigger for action. They wrote plainly that there were not yet any empirical studies confirming GTD’s claims, and that testing it is hard because GTD sets no explicit priorities to measure success against.
• Offloading to reminders does help memory for intentions. Evan Risko and Sam Gilbert (2016) reviewed research on “cognitive offloading”, using the outside world, from notes to phone reminders, to reduce mental effort. In two online experiments (52 and 96 adults), Pei-Chun Tsai and Sam Gilbert (2025) found that setting reminders improved people’s accuracy on time-based intentions. These were lab tasks with delays of seconds, not real to-do lists.
• Writing a plan quiets unfinished goals. The Masicampo and Baumeister (2011) experiments, covered in our to-do list guide, found that a specific plan reduced intrusive thoughts about an unfinished goal. That supports GTD’s “next action” rule, not the whole system.

So the honest summary: individual pieces of GTD rest on decent evidence (external memory, specific next actions, reminders). The full method, with its lists, contexts and reviews, hasn’t been compared with alternatives in a controlled study we could find.

Criticisms worth taking seriously

• Setup overhead. Allen’s book walks you through an initial sweep of your desk, drawers and mind before the system runs. Many people spend a weekend building the perfect system and abandon it three weeks later.
• List sprawl. Capturing everything is easy; clarifying everything is not. Lists grow to hundreds of items, and a list you don’t trust is worse than none.
• Weak on priorities. Heylighen and Vidal noted that GTD puts doing what fits the current situation ahead of doing what has the highest priority. They saw that as a strength; many users experience it as a gap, since the four criteria put priority last. That’s why many people pair GTD with the Eisenhower matrix or time blocking.
• It’s personal, but work often isn’t. In a 2020 essay in The New Yorker, Cal Newport argued that personal systems like GTD can’t fix the chaotic way work arrives at the organisational level, from endless email to ad hoc requests.

GTD light: a version that fits on your phone

If full GTD feels like a second job, keep the parts with the most support and drop the rest.

1. One inbox. A single note or notes app on your phone for everything that crosses your mind. Paper is fine too.
2. Clarify once a day, for 10 minutes. Turn each item into a next action, do it (under two minutes), give it a date, or delete it.
3. Dated items become reminders. Anything with a day or time goes into a reminder, not a list.
4. Two lists only. “Next” and “Waiting for”. Add a “Someday” note if ideas keep coming back.
5. A 20-minute weekly review. Inbox to zero, lists checked, next week’s calendar read.

The “trusted system” can be very simple. In Binome360, you can say or type a reminder in one sentence, one-off or recurring, tick it off or snooze it, and store reference facts with “remember that…”. It doesn’t have project or context lists, so keep those in a notes app or on paper if you need them.

Frequently asked questions

What are the 5 steps of Getting Things Done?

Capture, clarify, organize, reflect and engage, in the 2015 revised edition. The 2001 edition called them collect, process, organize, review and do. In short: collect what has your attention, decide what each item means, put it in the right list, review the lists, then choose what to do.

What is the two-minute rule in GTD?

When you process your inbox, anything whose next action takes under two minutes gets done immediately. Everything longer is delegated, scheduled or added to a list.

Does GTD actually work?

Parts of it are well supported: writing down specific next actions and using external reminders both have research behind them. The method as a whole hasn’t been tested in a controlled trial that we could find, and its success depends heavily on keeping up the weekly review.

What’s the best app for GTD?

Any app that lets you capture in seconds, create a few lists and set dated reminders will do. Many people use a notes app for lists plus a reminders app for dates. The tool matters far less than the daily clarify and the weekly review.

In short

GTD is five steps: capture everything, clarify what each item means, organize it into a few lists, review them weekly, then engage based on context, time, energy and priority. Start light: this week, set one inbox and a recurring Friday reminder for a 20-minute weekly review.

Sources

• David Allen, Getting Things Done: The Art of Stress-Free Productivity, Viking, 2001; revised edition, Penguin Books, 2015.
• Getting Things Done (David Allen Company), “What is GTD?” (the five steps): gettingthingsdone.com.
• David Allen, “The Weekly Review”, David Allen Company, 2008 (checklist PDF): gettingthingsdone.com.
• Francis Heylighen and Clément Vidal, “Getting Things Done: The Science behind Stress-Free Productivity”, Long Range Planning, 41(6), 585–605, 2008: doi.org/10.1016/j.lrp.2008.09.004.
• Evan F. Risko and Sam J. Gilbert, “Cognitive Offloading”, Trends in Cognitive Sciences, 20(9), 676–688, 2016: doi.org/10.1016/j.tics.2016.07.002.
• Pei-Chun Tsai and Sam J. Gilbert, “Strategic reminder setting for time-based intentions: Influence of metacognition, delay length, and cue visibility”, Memory & Cognition, 53(7), 2237–2254, 2025: doi.org/10.3758/s13421-025-01708-x.
• E. J. Masicampo and Roy F. Baumeister, “Consider it done! Plan making can eliminate the cognitive effects of unfulfilled goals”, Journal of Personality and Social Psychology, 101(4), 667–683, 2011: doi.org/10.1037/a0024192.
• Cal Newport, “The Rise and Fall of Getting Things Done”, The New Yorker, 17 November 2020.
• James Clear, Atomic Habits, Avery, 2018 (the habit-starting “two-minute rule”).

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