Available nowCTAS Work
Attendance, shifts & payroll
Staff clock in from their phones over GPS or Wi-Fi, managers schedule and approve in a few taps, and payroll comes out at month end following your own rules.
A software ecosystem for Vietnamese businesses
Run your business leaner, right from your phone
CTAS makes practical software for small and medium businesses — starting with CTAS Work: attendance, scheduling, approvals and automatic payroll. One account for every CTAS product.
- Try CTAS Work for 7 days
- On iOS, Android and the web
- for every CTAS product
- 1 account
- in the ecosystem, rolling out
- 4 products
- work from anywhere
- iOS · Android · Web
- Vietnamese and English
- Bilingual
Products
One account, a whole operations toolkit
Use what you need today and add the rest when you are ready — organization and staff data are shared, never re-entered.
- Available now
Available nowCTAS Course
Courses, staff training & the CTAS Learn apps
A marketplace of short, practical online courses for working people; businesses write courses in CTAS Studio and assign them to staff. Study in the two CTAS Learn apps for iPhone and Android.
Coming soonCTAS Network
Zalo OA & customer channels
Connect your Zalo Official Account: followers, messages and customer notifications managed from one place.
BetaCTAS Developer
APIs & integrations
OAuth 2.0 and APIs to connect attendance and HR data to your accounting software, ERP or in-house apps.
Spotlight · CTAS Work
From the first clock-in to the month-end payslip
The first CTAS product, for every business that runs on shifts.
Attendance
Staff clock in on their phones, at the right place
GPS or the store Wi-Fi confirms the right person at the right place. Late arrivals, early leaves and breaks are recorded automatically — no time clock needed.
- Pin workplaces on a map
- Store Wi-Fi verification
- Stops buddy punching
Requests & rotas
Build rotas and approve requests in a few taps
Copy last week’s rota and let staff request shifts; leave, missed punches and advances all have an approver and a clear history.
- Several shifts a day, overnight shifts
- Escalation when requests wait
- Team leads approve their own team
Payroll
At period end, payroll follows your own formula
Days, leave, overtime, holidays, insurance and income tax are calculated for you. Anomalies are flagged and everything is previewed before you close.
- Monthly, daily or hourly pay
- Mid-month pay estimates
- Staff confirm their payslips
Why CTAS
Made for the way Vietnamese businesses really work
Built around Vietnamese practice
Public holidays, social insurance, personal income tax, salary advances and QR payments — the way Vietnamese businesses already work.
Phone first
Staff and managers do everything on a phone; the web version is there for big-screen work.
One account for everything
Sign in once at account.ctas.vn, protected by multi-factor authentication.
Your data stays yours
Isolated per organization, tightly permissioned, compliant with Decree 13/2023 on personal data protection.
Clear prices, try first
Per-organization prices, published openly. A full 7-day trial before you pick a plan.
Support in Vietnamese
The CTAS team in Ho Chi Minh City helps you set up and answers within the business day.
Alongside you
From your first trial day until the whole team is fluent
Try it for 7 days
Create your organization at work.ctas.vn or in the app in minutes and use all of Growth with your own team — no card required.
Set up at your own pace
Workplaces, shift and pay templates, permissions: the CTAS team configures them with you from day one.
Here for the long run
Regular feature updates and support by phone, email and Zalo whenever you need it.
News & guides
Latest from CTAS
Guides
Overtime pay under Vietnam's 2019 Labour Code, with a worked example
150% on weekdays, 200% on days off, 300% on holidays, plus 30% and 20% at night — each rate explained and calculated for a barista.
4 min read
Guides
How to calculate annual leave: 12 days, part-year staff and seniority
Days per year, new starters, one extra day every 5 years, unused leave when someone leaves — plus three common shop situations.
4 min read
Guides
Can you dock pay for lateness? Paying for time worked vs. fining
The law bans fines and pay cuts as discipline. Is “15 minutes late, 50,000 VND off” wrong? How to handle lateness legally.
4 min read
FAQ
About CTAS
Tell us about your business — our team usually replies within one working day.
Contact usWhat is CTAS?
CTAS is an ecosystem of operations software for Vietnamese businesses, built and operated by CTA Solution Co., Ltd. Its first product is CTAS Work — attendance, scheduling and payroll.
Which products are live, and which are coming?
Live: CTAS Work (attendance, scheduling, payroll) and CTAS Course (course marketplace and staff training, studied in the two CTAS Learn apps). Coming: CTAS Network (Zalo OA) and CTAS Developer (integration APIs). Leave your email on the Contact page to hear when they launch.
What does one account for every product mean?
You sign in once with your CTAS account. The organization, departments and staff you set up in CTAS Work carry over to other CTAS products — nothing to re-enter.
Who operates CTAS?
CTA Solution Co., Ltd. — tax code 0316683514, headquartered at 215 Bach Dang Street, Hanh Thong Ward, Ho Chi Minh City.
Try CTAS Work for 7 days
Create your organization in minutes and try every feature, no card required. Need advice? The CTAS team is happy to help.