The verdict in three sentences
For a 120-employee multi-site SME, automating payroll variable collection costs roughly EUR 8,000 to 16,000 excl. VAT in 2026, depending on the number of validation rules and the connector to your payroll software (BrightPay, Sage Payroll or equivalent). The direct gain is around 2 HR working days per month and a payroll error rate brought below 1%. The investment usually pays back in 12 to 20 months, faster if your current errors trigger back pay or disputes.
Where the time is lost today
In most SMEs we see (distribution, services, food processing), the process looks like this: each manager sends a spreadsheet or email between the 20th and 25th of the month, HR chases late submissions, re-keys the data into the payroll software, then fixes inconsistencies after the cut-off. The payroll software works fine: the losses happen upstream.
| Manual process step | Estimated monthly time | Main risk |
|---|---|---|
| Chasing managers (8 sites) | 3 to 4 h | Variables received after cut-off |
| Consolidating Excel files | 4 to 5 h | Inconsistent formats, duplicates |
| Checking overtime and absences | 3 to 4 h | Hours not compliant with contracts |
| Re-keying into the payroll software | 3 to 4 h | Typos on bonuses |
| Post-payroll corrections and back pay | 1 to 3 h | Corrected payslips, frustration |
| Total | 14 to 20 h, about 2 days | Error rate often 2 to 4% |
A 3% error rate on 120 payslips means 3 to 4 wrong payslips every month. Each correction costs HR time and, above all, employee trust.
What an automated solution includes
The goal is simple: each variable is entered once, by the right person, checked automatically, then exported in the format your payroll software expects. In practice, we build a small web tool (or configure an existing one) with four components.
- Manager forms: overtime, bonuses, absences and advances per team, mobile-friendly, with deadlines and automatic reminders.
- Consistency checks: hour caps per contract or agreement, absence without supporting document, off-grid bonus, leaver still entered.
- Two-level approval: the manager submits, HR approves or sends back with a comment.
- Payroll export: import file in your payroll software format, with pay element codes already mapped.
| Option | 2026 initial cost (estimate) | Recurring cost | Suitable if |
|---|---|---|---|
| Off-the-shelf HRIS module | EUR 2,000 to 5,000 setup | EUR 6 to 12 per employee per month | Standard process, few specific rules |
| No-code automation (forms + spreadsheet + scripts) | EUR 3,000 to 6,000 excl. VAT | EUR 50 to 150 per month | Under 50 employees, single site |
| Light custom tool | EUR 8,000 to 12,000 excl. VAT | Maintenance EUR 150 to 300 per month | Multi-site, specific rules |
| Custom tool with payroll export and dashboard | EUR 12,000 to 16,000 excl. VAT | Maintenance EUR 250 to 400 per month | 100+ employees, several agreements |
| Full integration with time clock or rostering | EUR 16,000 to 25,000 excl. VAT | EUR 300 to 600 per month | Variable hours, shift work |
For 120 employees, an off-the-shelf HRIS at EUR 9 per employee comes to about EUR 12,960 a year, more than the initial cost of a light custom tool. Custom becomes relevant as soon as your rules (site allowances, on-call, meal allowances) do not fit standard boxes.
Timeline and watch points
Allow 6 to 10 weeks: 2 weeks of scoping with HR and your accountant, 3 to 5 weeks of development, then one parallel payroll run (old and new process) before switching. Three points to lock down: data hosting in Europe (GDPR, possible health data through absences), access rights per site, and the pay element mapping table, to validate with your payroll provider.
Mini case study
Niamh, HR manager of a distribution SME in Dublin (120 employees, 8 sites), spends 18 h a month collecting and correcting variables. Her loaded cost is about EUR 45 per hour.
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- Current time: 18 h x EUR 45 x 12 months = EUR 9,720 a year.
- Time after automation: 4 h a month, i.e. EUR 2,160 a year.
- Time saving: EUR 7,560 a year.
- Errors avoided: 3 corrected payslips a month at EUR 60 handling cost, i.e. EUR 2,160 a year.
- Investment: EUR 12,000 excl. VAT + EUR 3,000 annual maintenance.
Net annual gain: 9,720 - 3,000 = EUR 6,720. Payback in about 21 months, then a recurring net gain. This scenario is an illustrative projection, to be recalculated with your own volumes.
FAQ
Do we need to change payroll software to automate collection?
No, in 90% of cases you keep your current payroll software and only automate the upstream step. The tool produces an import file in the expected format, which avoids any payroll migration.
How much time do managers spend on the tool?
Usually 10 to 15 minutes per month per team, versus 30 to 45 minutes with an emailed spreadsheet. Automatic reminders cut late submissions by about 80%.
Can payroll data be hosted outside the EU?
It should stay within the European Union to keep GDPR compliance simple. EU hosting costs between EUR 30 and 150 per month depending on the backup level.
Can we start with a single site?
Yes, a pilot on 1 or 2 sites over 2 payroll runs validates the checking rules. The pilot often represents 60% of the total budget, as rollout to other sites is then quick.
What happens when the agreement or regulations change?
Caps and rules are configurable in an admin screen. A regulatory update usually takes 1 to 3 hours of maintenance.
Let's scope your project. Send us your headcount, number of sites and pay elements for a costed scope between EUR 8,000 and 16,000 excl. VAT and a 6 to 10 week plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
