In this guide · 8 sections
Short answer
Pick three repeatable tasks, time 10 to 20 examples of each without AI, then the same number with AI, logging time, rework and errors. Convert the difference to cost per task and compare it with the AI subscription. Keep the tool where the saving is clear; stop where rework eats the gain.
Why 'it feels faster' isn't enough
Many businesses report benefits. IMDA's Singapore Digital Economy Report 2026, announced in a press release on 5 October 2026, found SME AI adoption rose to 23.4% in 2025, and among AI-adopting firms 87.6% cited productivity and process improvement as a benefit and 44.0% cost reduction. Our summary of the report has the page references.
Those are survey answers across many firms. Your own question is narrower: does this tool save time on our work, for our people, more than it costs? Drafting is often faster with AI, but checking, correcting and re-explaining can cancel the gain, and that only shows up if you measure the whole task.
Step 1: pick three repeatable tasks
Choose tasks you do often enough to time 10 to 20 examples in a couple of weeks, with a clear start and finish.
| Good task to measure | Start | Finish |
|---|---|---|
| Replying to a customer enquiry | Enquiry opened | Reply sent |
| Writing a quote or proposal | Brief received | Quote sent for approval |
| Monthly report or summary | Data available | Report shared |
| Product or job description | Details received | Text published |
| Meeting notes and actions | Meeting ends | Notes sent |
Avoid one-off projects and tasks where AI does something entirely new. You can't compare a before and after if there is no before.
Step 2: log before and after
Use one shared sheet with one row per task. Keep it quick to fill in, or people stop.
Set up the log
Columns: date, person, task type, with or without AI, minutes to first draft, minutes of checking and rework, errors found later, and a 1 to 5 quality score from whoever approves it.
Run the baseline first
For one to two weeks, people do the tasks their usual way and log them. Ten to twenty examples per task is enough for a small team.
Switch to AI for the same tasks
Same people, same task types, now with the AI tool and an agreed prompt or template. Log the same columns.
Count rework honestly
Time spent fixing facts, tone or formatting in AI output goes in the rework column, as does any correction after a customer spots an error.
Compare medians, not best cases
Use the middle value for each task, so one very fast or very slow example doesn't skew the result.
Step 3: turn minutes into cost per task
Time saved only matters when you compare it with what you pay. Use a simple loaded hourly cost for the people doing the task, such as salary plus CPF divided by working hours, and the AI cost per seat.
| Number | How to work it out |
|---|---|
| Minutes saved per task | Median before minus median after (including rework) |
| Hours saved per month | Minutes saved x tasks per month ÷ 60 |
| Value of time saved | Hours saved x loaded hourly cost |
| AI cost per month | Seats x price, plus any usage-based charges |
| Net monthly gain | Value of time saved minus AI cost |
Current seat prices are in our AI tools price list.
Step 4: set stop rules before you start
Decide in advance what result would make you keep, change or drop the tool. It stops a good demo from deciding for you.
Keep or expand if
- Median time per task falls clearly after including rework
- Quality scores stay the same or improve
- Errors reaching customers don't rise
- Staff keep using it without reminders
Stop or change if
- Rework takes most of the drafting time saved
- Errors reach customers, or approvers spend longer checking
- Only one enthusiast uses it
- Staff paste customer data into tools not approved for it
Data rules matter here too: measuring AI use is a good moment to confirm which tools are approved for customer information. Our AI policy and staff training checklist covers that.
What to do with the results
After four weeks you'll usually see three groups of tasks: clear wins, small or unclear gains, and losses.
After the measurement
If you want to run the test as a structured trial with a go or no-go decision at the end, our 30-day AI pilot plan wraps this method into a month-long schedule.
Do it yourself or get help?
This method needs a sheet, a month and someone to keep people logging, so most small businesses can run it themselves. Where help is useful is the next step: once a task is a clear win, automating the copying, pasting and sending around the AI step usually saves more time than the AI itself.
Our Workflow Automation (S$390 per workflow) builds one workflow of up to five steps in your own Make, Zapier or Google Apps Script account, such as new enquiry, AI draft, approval and send, with error alerts and documentation. AI and automation subscriptions are paid by you.
Frequently asked questions
Pick a few repeatable tasks, time 10 to 20 examples of each without AI and then with AI, including checking and rework. Convert the minutes saved into hours a month, multiply by a loaded hourly staff cost, and subtract the AI subscription and usage costs. Keep the tool where the net gain is clear.
For each task: who did it, whether AI was used, minutes to a first draft, minutes spent checking and fixing, any errors found later and a simple quality score from whoever approves the work. Rework is the column most often skipped, and it is the one that decides whether AI really saves time.
About four weeks works for most small teams: one to two weeks to log the usual way, then one to two weeks using AI on the same task types. That gives enough examples to compare middle values, without the test becoming a project of its own.
Often, for the people who use it daily. A business AI seat at about US$20 a month pays for itself if it saves a staff member an hour or two each month on real tasks. Measure before deciding, because heavy rework or low use can make a seat a net cost.
IMDA's Singapore Digital Economy Report 2026 found SME AI adoption rose to 23.4% in 2025. Among firms using AI, 87.6% cited productivity and process improvement as a benefit and 44.0% cited cost reduction. These are survey responses, so measure your own tasks before relying on them.