The verdict in three sentences
For a 150-employee SMB, an automated payroll and HR solution costs about 6,100 to 15,250 EUR (4,000,000 to 10,000,000 FCFA) in 2026 depending on modules and integrations. It cuts payroll preparation time by roughly 60 % and removes most statutory deduction errors (PAYE, PRSI and USC in Dublin; IPRES and CSS in our Dakar reference case). The project pays back in under 18 months once you count lost time, salary corrections and audit risk.
Why Excel breaks beyond 50 employees
With 150 employees, every month combines overtime, bonuses, absences, leave, advances and loans, plus contribution caps and rates. On Excel, one broken formula or an outdated rate spreads to every payslip. The HR manager then spends two days checking, correcting and reissuing. A dedicated tool centralises legal parameters, applies collective agreement rules automatically and generates filings.
| Payroll item (Senegal reference, 2026 estimate) | Indicative rate | What the tool automates | Dublin equivalent |
|---|---|---|---|
| IPRES general pension | 14 % (8.4 % employer, 5.6 % employee), capped | Calculation, cap, filing | Pension auto-enrolment |
| IPRES executive pension | 6 % (3.6 % / 2.4 %), capped | Automatic executive assignment | Occupational schemes |
| CSS family benefits | 7 % employer, capped | Calculation and monthly statement | Employer PRSI |
| CSS workplace accidents | 1 to 5 % by risk | Rate per site | Employer liability insurance |
| Income tax withheld at source | Progressive scale, family quotient | Calculation by tax shares | PAYE and USC via Revenue |
| Employer flat contribution (CFCE) | 3 % of payroll | Summary statement | n/a |
These rates are indicative: have them validated by your accountant. A good tool lets you update a rate once for every employee.
2026 pricing: packaged software, SaaS or custom
| Option | Upfront cost (EUR) | Annual cost (EUR) | Suited to |
|---|---|---|---|
| Excel + external accounting firm | 0 | 4,600 to 9,150 (fees) | Under 30 employees |
| Local payroll SaaS | 760 to 2,300 (setup) | 2,750 to 5,500 | 30 to 200 employees, standard processes |
| Licensed payroll + HR package | 4,600 to 9,150 | 1,370 to 2,750 (maintenance) | Multi-site groups |
| Custom: payroll + leave + online payslips | 6,100 to 9,900 | 900 to 1,830 | SMBs with specific rules |
| Full custom (+ time tracking, expenses, employee portal, accounting) | 10,700 to 15,250 | 1,830 to 3,050 | SMBs of 100 to 500 staff |
Custom makes sense when your bonuses, shift patterns or agreement rules do not fit a standard SaaS, or when you want payroll linked to time tracking and accounting with no re-keying.
Modules that save the most time
| Module | Estimated monthly gain (150 staff) | Indicative cost (EUR) |
|---|---|---|
| Payroll and deductions calculation | 3 days | Project core |
| Online leave and absences | 1 day | 900 to 1,500 |
| Digital payslips (portal or WhatsApp) | 0.5 day + printing | 600 to 1,200 |
| Time clock import (badge, biometrics) | 1.5 days | 1,200 to 2,300 |
| Automatic accounting export | 0.5 day | 760 to 1,370 |
| Expenses and advances | 0.5 day | 900 to 1,500 |
Mini case study
Aïssatou, HR manager of a 150-employee food company (our Dakar reference case), spends 6 days a month on payroll, including 2 days of corrections, with one assistant: 12 person-days a month. After automation, payroll takes 2.5 days for two people, or 5 person-days: a gain of 7 days a month, 84 days a year. At a loaded 69 EUR a day (45,000 FCFA), savings reach about 5,760 EUR a year (3,780,000 FCFA), plus roughly 2,290 EUR of avoided errors. The chosen solution costs 9,450 EUR plus 1,370 EUR a year: payback in about 17 months. For a Dublin SMB, where a loaded HR day costs 250 to 350 EUR, the same 84 days are worth 21,000 to 29,400 EUR a year and payback falls under 6 months.
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FAQ
Does the tool handle statutory filings?
Yes, it calculates contributions and generates monthly or quarterly filing statements in the expected format (IPRES and CSS in Senegal, real-time PAYE submissions to Revenue in Ireland). Submission takes 30 minutes instead of a day.
What happens when a rate or cap changes?
The parameter is updated once and applies to every following payslip. Under a maintenance contract of 900 to 1,830 EUR a year, these legal updates are included.
Can employees receive payslips on WhatsApp?
Yes, through a secure link to the employee portal rather than a PDF attachment. For 150 employees, that removes about 1,800 printouts a year.
How long does deployment take?
Allow 8 to 14 weeks, including 2 months of parallel payroll with Excel to validate every payslip before the final switch.
Is our salary data protected?
Data protection law (GDPR in Ireland, Law 2008-12 in Senegal) requires restricted access and documented processing. We provide role-based rights, an access log and encrypted hosting.
Let's scope your project. Share your headcount, bonus rules and current tools: we will price a payroll and HR solution between 6,100 and 15,250 EUR, delivered in 8 to 14 weeks. 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.
