Comparing time-clock systems gets complicated fast: there are several types of technology, overlapping provider categories, and regulations that are changing this very year.
In this guide you will find the types of time-clock systems available, the provider categories on the market, what the regulations say today (and what is about to change), how to implement one without it turning into chaos, and the most common mistakes when you choose poorly.
What is a time-clock system and what must it record?
A time-clock system is any method (paper, Excel, a physical terminal, or an app) that a company uses to record each employee’s clock-in and clock-out times, including breaks. Since 2019, it has been mandatory for all Spanish companies, with no exceptions by size, sector, or type of working day. Whether you are 8 or 800: if you have staff, you must record their working hours.
What is flexible, at least for now, is the medium. The law does not impose a specific time-clock system, it only requires that the record exists, is reliable, and is kept for four years, accessible to the company, employees, and the Labour Inspectorate.
Quick glossary, in case you come across these terms
- Traceability: any change to a record is logged, with date and author, and cannot be deleted.
- RD-ley 8/2019: the regulation that, since 2019, has required recording the working day of all employees in Spain.
- Biometric data: fingerprint, facial recognition, or iris recognition. The AEPD considers them specially protected data.
- Geolocation: the location from which an employee clocks in, useful for sales staff or mobile technicians.
- RFID terminal: the physical time clock that reads a card or code.
Why is clocking in mandatory, and what happens if you do not do it?
Not having a time-clock system, or having one that does not stand up to a review, is costly in two ways. The first is the administrative penalty: in 2024, the Labour Inspectorate imposed more than €20 million in fines for infringements related to working time records and working time, 9% more than the previous year. Amounts are calculated per affected employee, not per company. The second route, less discussed, is employment-related: without a reliable record, any employee overtime claim is much harder to refute, because the burden of proof falls on the company.
A well-managed time-clock system is not just about avoiding a fine. It is about having the data at hand the day you need it, without having to reconstruct anything from memory.
Types of time-clock systems you may come across
Not all time-clock systems are suitable for the same purpose. If you are looking for a system to clock in at work that fits your day-to-day, here is what is on the market, from the most basic to the most complete:
Paper and Excel
It is legal, yes. But it is the highest-risk method: nobody audits a spreadsheet, anyone can change it without leaving a trace, and the day you are inspected, defending that data is an uphill battle. In addition, as things stand, it creates more manual workload for HR than any other option.
Physical terminal or card (RFID)
The classic time clock, now with a card or code. It is still common in factories, warehouses, or retail with physical access. It works well if everyone clocks in from the same place, but it falls short as soon as rotating shifts, remote work, or multiple sites come into play.
Biometric clocking (fingerprint or facial recognition)
It exists, but before installing it you should know this: the AEPD considers fingerprints and facial recognition to be specially protected biometric data. Using them as the only system, without a less intrusive alternative available, can lead to fines of up to €365,000, as happened to a Spanish company in 2024. It is not the most sensible starting point unless you have a very specific security reason.
Online time-clock system (app, browser, QR, or messaging)
It is the fastest-growing option, and for good reason. An online time-clock system allows employees to clock in from their phone, the browser, a QR code at the entrance, or even from WhatsApp, Slack, or Teams. It works equally well for office, remote work, rotating shifts, and geographically mobile teams, and it stores each record in the cloud, with traceability, without relying on someone to manually enter data. If you want to see what this looks like day to day, here is a time-clock app for work designed for exactly that.
Comparison table by type
| Type | Recommended for | Main advantage | Main limitation |
|---|---|---|---|
| Paper / Excel | Very small teams, zero budget | No cost | No traceability, risk during an inspection |
| Terminal / RFID | Staff based at a single site | Robust, does not depend on a phone | Does not cover remote work or mobility |
| Biometric | Specific cases with a genuine need for physical security | Hard to impersonate | Legal risk and AEPD fines if it is the only method |
| Online app / QR / messaging | Companies with shifts, hybrid work, or multiple sites | Flexible, traceable, frictionless for the team | Requires a connection, unless offline mode with photo/OCR |
What will you find when looking for a time-clock system for companies?
Beyond the technical method, the market is organised into four major provider categories. Knowing which one fits your needs saves you from reviewing fifteen websites that, in essence, sell the same thing under a different name.
- Full HR suites: time tracking integrated into a broader platform that also covers payroll, recruitment, or performance evaluation. It makes sense if you want to centralise all HR in a single tool.
- Specialists in time tracking and shifts: their focus is exclusively time tracking, rotating shifts, and absences, with integrations to your payroll or ERP instead of replacing them. Many also include document management, reporting, and an internal communication channel. They are usually quicker to implement.
- Basic or low-cost solutions: they cover the act of clocking in and little else. They comply with the law, but any additional need (complex shifts, custom reports) is left out.
- Physical terminal or hardware: the manufacturer sells the device and, in many cases, a more limited associated software, although some can connect with time tracking specialists to cover what the hardware cannot solve on its own. It only makes sense if physical access is your main need.
Indicative price ranges (Spanish market, 2026)
| Category | Typical range | What it typically includes |
|---|---|---|
| Basic online software | €1–€3 / employee / month | Clocking in and little else |
| Time tracking software and shifts | €1.5–€8 / employee / month | Clocking in, shifts, absences, reports |
| Full HR suite | €6–€15+ / employee / month | Clocking in + payroll + other HR modules |
| Physical terminal | Hardware cost + monthly fee | RFID/biometric terminal and associated basic software |
These prices are indicative: they vary depending on the number of employees, the country, and the specific features you need. Use them as a reference so you are not starting from zero, not as a fixed quote. Also bear in mind that the entry price is not always what you will pay long term: many providers apply welcome or annual-payment discounts that disappear at renewal, so it is worth asking for the rate from the second year onwards before signing.
Which time-clock system fits your type of company?
There is no one-size-fits-all employee time-clock system. What works for a shop with split shifts does not work for a remote office team. As a starting point:
- Office or hybrid work: an online time-clock system via browser or mobile, without a physical terminal, is the most convenient and creates the least friction.
- Retail and hospitality with rotating shifts: you need something that manages shifts and clocking in at the same time, with fast on-site clocking (QR or PIN) for those who do not use their personal phone at work. Here is what to consider when organising rotating work shifts if you want to go deeper.
- Industry, construction sites, or warehouses: physical access and low-coverage areas matter here. An RFID terminal or a system that lets you note on paper and digitise later (via photo and OCR) works better than a pure app.
- Companies with multiple sites or multiple collective agreements: it is worth prioritising data centralisation and payroll connectivity above any other criterion, because that is where manual work multiplies if the system does not automate it.
When will 100% digital clocking in become mandatory?
It is best to rely on up-to-date information here, because there is a lot of noise. This is the situation in July 2026:
In force today: RD-ley 8/2019 requires recording the daily working hours of all employees, in any format, as long as the record is reliable and is available for four years to the company, employees, and the Labour Inspectorate. Paper and Excel are still legal today if they meet those conditions.
At this time, time tracking is still mandatory for all companies, but current regulations do not yet require all time-clock systems to be exclusively digital. Even so, the regulatory trend points towards records that are increasingly traceable, accessible, and easy to review in the event of an inspection.
To avoid duplicating legal information that may change, we recommend consulting our guide to the time tracking law, where we update the main developments on time tracking, digital clocking in, and company obligations.
What does this mean for you? Migrating to a 100% digital system is not mandatory yet, but it is only a matter of time. Moving now, calmly, helps you avoid doing it later in a rush and without time to compare options. You can follow the details point by point in the 5 key points your time tracking must already meet.
What should you consider before choosing a time-clock system?
With the legal and market side clear, it is time for the practical question. Before you decide, review this:
- Will your team actually use it? A system that requires too many steps to clock in ends up with “approximate” records at the end of the month. The fewer clicks, the better.
- Does it match how your workforce works today and in a year’s time? Rotating shifts, remote work, multiple sites, or staff without a computer need different methods: mobile, QR, messaging.
- Does it connect to your payroll or ERP? If you already work with SAP, Oracle, or A3, having clocking data flow there automatically saves you double manual data entry every month.
- What happens on the day an inspection arrives? A good employee time-clock system should generate the working hours report automatically, without you having to reconstruct anything by hand.
- What if something goes wrong? Support and time to go live (onboarding) matter as much as the tool. A system that takes months to implement costs more than it saves.
How to implement a time-clock system without it turning into chaos
Choosing the tool is only half the work. How you roll it out determines whether your workforce adopts it or avoids it.
- Define the policy before announcing the tool. What is clocked, how missed punches are justified, and who approves corrections. Without this, any system creates doubts from day one.
- Communicate it in advance and explain why. A team that understands it is required by law and protects them as much as the company will find it easier to adopt the change than one that feels monitored.
- Start with a pilot in one team or site. You will identify real friction points before rolling the change out to the entire workforce.
- Train the less digital profiles. Not everyone is equally comfortable with an app; a short session avoids weeks of repeated questions to HR.
- Review after 30 days. This is the typical onboarding timeframe for serious online solutions. If there is still friction by then, the problem is usually the tool, not the team.
Common mistakes when choosing or implementing a time-clock system
- Choosing based on price alone. A cheap option that does not cover shifts or integrations ends up creating manual work that more than offsets what you saved by buying it.
- Not thinking about how the company will grow. A system designed for 10 fixed office employees falls short as soon as shifts, new sites, or partial remote work appear.
- Turning to biometrics without a real need. In addition to the risk of fines, it often generates more internal pushback than any other method.
- Not communicating the change to employees. Even the most complete system on the market fails if the team does not understand what it is for or experiences it as excessive control.
- Ignoring payroll integration. If clocking data does not flow into payroll automatically, someone will have to translate it manually every month, indefinitely.
A time-clock system is not just a box to tick for the law. Chosen well, it gives you back hours of admin work every week and removes the feeling of having to constantly stay on top of your team.
If you already know you want something digital, here is what you will find with Woffu: clocking in from mobile, browser, a QR code, or directly from WhatsApp, Slack, or Teams, without your team having to change their routine. That record connects automatically with shifts and holidays within the same software. In addition, you can integrate it with your ERP (SAP, Oracle, A3) to keep payroll up to date, so you do not have to manually enter figures again. That is why our customers reach 99% adoption, go live in an average of 30 days, and recover 11,036 hours per year in administrative management. Here you can see our time-clock app for work in detail.
If you would rather see it live, book a demo with us and we will review it applied to your specific case.
Frequently asked questions about time-clock systems
Is a time-clock system mandatory for all companies?
Yes. Since 2019, any Spanish company must record the daily working hours of all employees, regardless of its size, sector, or contract type.
Can I keep using Excel to clock in?
Yes, it is still legal today, as long as the record is reliable and is kept for four years. The risk is not legal, it is practical: it is easy to manipulate and hard to defend during an inspection.
What happens if I do not clock in or my company does not have a time-clock system?
The company is exposed to Labour Inspectorate fines, calculated per affected employee, and is in a weaker position in any overtime claim, because it cannot prove the actual working hours.
Can the company require me to use a specific time-clock method?
Yes, within reason, as long as it informs employees and complies with data protection regulations. Geolocation or biometrics, for example, require notice and, in the case of biometric data, justification that there is no less intrusive alternative.
When will digital clocking in become mandatory?
There is no date yet. A Royal Decree in progress would require it, but the opposing opinion of the Council of State (March 2026) has slowed the process. The most realistic forecasts point to late 2026 or early 2027.
How much does a time-clock system cost?
It depends on the method and the provider. Basic online solutions are usually €1 to €3 per employee per month, specialists in time tracking and shifts €2 to €8, and full HR suites can exceed €6–€15. Entry prices do not always hold after renewal, so it is worth confirming the rate from the second year onwards. A basic employee clocking software and a physical terminal with its own hardware also have different cost structures: the latter adds the upfront investment in the device.
Can I change time-clock systems mid-year without losing the history?
In most cases, yes, as long as you export the records from the previous system before cancelling it. It is advisable to keep that export separately, since the obligation to keep four years of history remains yours, not the provider’s.
Does a time-clock system also work to manage shifts and absences?
The most complete ones do. In addition to recording working hours, they allow you to plan shifts, manage holidays and absences, and generate automatic reports, all from the same place where employees clock in.
