Lean in the Office: Spotting Waste in Administration and Sales

Why is waste so hard to see in the office?

Walking through a workshop, you recognize waste at first glance: parts waiting to be processed, unnecessary walking, scrap in the bin. In the office, everything looks the same. People sit at screens and work. Whether a task is moving forward or has been sitting in an inbox for three days cannot be seen from the outside.

At the same time, in many companies the share of work that takes place not in production but in quoting, order processing, purchasing, and accounting is growing. This leads to the guiding question of this article: What can lean, the thinking of lean production, achieve in the administration and sales of a small company, and where are its limits?

To answer it, we first clarify what lean in the office means and introduce the seven types of waste as a thinking model. Then we assess what studies show about adoption and effects, and which objections are justified. At the end there is a simple walk-through for finding waste in your own office, and an answer to the guiding question.

In the office, the most expensive waste is not the wrong work but the task nobody is working on right now.

What does lean in the office mean?

Lean refers to a management approach that emerged from the Toyota Production System. Its basic idea: every workflow consists of steps that bring the customer a benefit and steps that do not. The latter are called waste, muda in Japanese, and should be reduced. The customer can also be internal, for example production, which needs a complete order confirmation.

Lean office is the transfer of this thinking to administration, sales, and other office work. Kamińska-Witkowska (2025) points out that the approach is comparatively young: lean in production goes back to the 1940s, while according to a review she cites, the first academic article on lean office appeared only in 2005. Since then it has been applied mainly in healthcare, IT, finance, education, and public administration.

How large administration’s share of costs is cannot be stated in general. Kamińska-Witkowska (2025) cites figures from practitioner literature according to which administrative costs can account for 60 to 80 percent of the total cost of a service. A survey of manufacturers in Austria, Hungary, and Slovakia that she also cites, by contrast, found indirect costs of 10 to 31 percent of total costs. Above all, the range shows that the figures depend on the industry and on how costs are allocated. Whether they hold for your own company can only be answered with your own numbers. How to calculate the cost of a workflow roughly but reliably is described in the article on what a process costs.

The seven types of waste in the office

The thinking model at the center of lean is the seven types of waste, which go back to Taiichi Ohno, the founder of the Toyota Production System. They were formulated for the factory but can be transferred point by point to office work. The following table shows the transfer with typical examples from administration and sales.

Kamińska-Witkowska (2025) interviewed practitioners from the Polish lean community who work as trainers, consultants, or employed specialists in various organizations. They rated awareness of waste in the office as moderate. The types they named most often were errors with corrections, overproduction, and waiting. The most frequently used tools were workplace organization, mapping workflows, and standardizing them. The study is based on the assessments of a small number of experts, which the author herself names as a limitation.

Where does the time go? Processing and waiting

Lean’s most important insight for the office concerns waiting time. In many workflows, a task is actually worked on for only a small part of its lead time. The rest of the time it sits in an inbox, waits for information or a signature. The following worked example shows the lead time of a quote for a custom product.

The consequence is uncomfortable. Whoever wants to speed up the quote gains almost nothing if processing drops from five to four hours. They gain a lot if waiting for engineering drops from 40 to 8 hours, for example through a fixed daily slot for feasibility checks or clear ownership. The same thinking underlies the bottleneck analysis in the article on process optimization step by step: the first thing to improve is the point where tasks pile up.

The case studies in the table come from public institutions in Brazil. At one university, the total duration of an appointment procedure could be shortened by about 30 percent by removing unnecessary steps (Moutinho, Kanda, and Nogueira 2024). At a federal university, revising two administrative workflows saved 444,754 sheets of paper in one year (Lima et al. 2023). These are individual cases without a comparison group. They show where improvements start, not how large they will be in every company.

Cleaning up or intensifying? The justified objection to lean

There are two readings of lean. The first sees it as a method for cleaning up workflows from the customer’s perspective, reducing waiting times, and avoiding rework. The second sees it mainly as a cost-cutting program that fills every minute gained with new work and turns employees into executors of standardized steps.

The second reading is not far-fetched. Huo, Boxall, and Cheung (2022) surveyed 315 employees of a lean manufacturing plant twice at an interval. Higher work intensification went along with stronger emotional exhaustion and poorer wellbeing. This relationship became much weaker when direct supervisors supported the employees. Benassi (2024) compared three metal companies in Germany, Italy, and the United Kingdom and found in lean systems a tension between participation, cost-cutting, and a division of labor reminiscent of Frederick Taylor’s breakdown of work into precisely prescribed movements. In the German company, this tension was resolved in a more balanced way, which the author attributes to stronger codetermination, the German system of employee participation in company decisions.

Both studies come from production, not the office. For a small company, their lesson is nonetheless clear. I consider the first reading the one that pays off in the long run, because it involves the people who know the waste best. Whoever introduces lean in the office as a savings program may find minutes but loses the team’s willingness to report problems openly. Kamińska-Witkowska (2025) names lack of support from management, low awareness, and resistance to change as the biggest obstacles.

The waste walk: 90 minutes through your own office

Lean in the office needs no training and no project to get started. A simple walk along a single workflow is enough for the first findings.

1. Choose a workflow

   Take a task that customers or colleagues complain about, such as “inquiry to quote” or “goods receipt to paid invoice.”

2. Follow a real case

   Go with a current task from start to finish. At each station ask: when did it arrive, when did it move on, how long was it worked on?

3. Separate processing and waiting

   Note two numbers for each station: processing time and idle time. The sum of idle times is usually the largest number on the sheet.

4. Name the waste

   Assign each obstacle to one of the seven types. Ask the recipients: do you need this report, this field, this approval?

5. Choose one change

   Take the one change that shortens the longest waiting time. Not five at once.

6. Measure after four weeks

   Follow another case and compare the lead time.

The walk deliberately follows the principle from the article on why process comes before the tool. Many kinds of office waste can be eliminated without software: through clear ownership, an approval limit, or a fixed daily time for queries. Where motion is the main waste, meaning searching and switching between programs, the articles on how to reduce tool sprawl and on digital filing help. And whoever wants to make open tasks visible will find a board that limits inventory in the article on Kanban in sales.

What does this mean for small companies?

Small companies have two advantages for lean in the office. Paths are short, and the people who know a workflow usually sit in the same room. A walk-through therefore takes hours rather than weeks. And there is no department that manages lean as a project of its own. Improvement stays where the work happens.

They also have a disadvantage. Small teams often lack the time to reinvest time gained into improvement. The temptation is great to fill every freed-up hour immediately with daily business. Then it remains a one-off cleanup. The limits of the studies cited here should also be kept in mind: the findings on lean in the office are based mainly on case studies and expert surveys, not on comparisons of many companies.

Conclusion: what lean in the office can achieve

We began by asking
lean can achieve in the administration and sales of a small company and where its limits are. The answer is mixed. As a thinking model, lean in the office is valuable: the seven types of waste make visible what otherwise remains invisible, and the focus on waiting times shifts attention from working faster to letting things sit less. That is its greatest benefit.

As shown, the documented successes in the office so far rest mainly on individual cases, and studies from production warn of work intensification when lean runs as a pure savings program. For a small company, this leads to a clear weighting: lean in the office pays off when it reduces the waiting time of a task and involves the team. It does not pay off when it counts people’s minutes. In the end, waste in the office is rarely a question of diligence and almost always a question of handovers.

What you can do this week

1. Choose a workflow that people have complained about in recent weeks.
2. Follow a real task from start to finish and note processing time and idle time for each station.
3. Assign the obstacles to the seven types of waste and ask the recipients what they really need.
4. Choose the one change that shortens the longest waiting time and implement it.
5. After four weeks, follow another task and compare the lead time.

If you notice that the same task gets stuck at the handover between sales and fulfillment, the article on how to optimize order processing shows you the next place to start.