The verdict in three sentences
A construction firm running quotes, progress billings, a 5% retention and 18% VAT on a spreadsheet piles up errors, missed invoices and payment disputes. Dedicated software structures each project, compares budgeted versus actual, chases arrears and cuts disputes by around 30%. Decision: stay on Excel or move to dedicated software (SaaS 20,000-60,000 FCFA/month or custom 3-7M FCFA).
Excel versus dedicated software: the real match
Excel is free and flexible, but it won't calculate a retention on its own, won't chase a client and won't warn you when a project overruns its budget. Dedicated software does all of that and protects cash flow.
| Function | Excel | Dedicated construction software |
|---|---|---|
| Costed quote | Manual | Price library |
| Monthly progress billing | Fragile formulas | Automatic |
| 5% retention | Do it yourself | Automatic |
| 18% VAT | Manual | Automatic |
| Budget vs actual | Hard | Dashboard |
| Arrears follow-up | None | Automatic |
| MoMo deposit collection | No | Integrated |
On a site, the monthly progress billing is the key to cash flow: it invoices actual progress. Software generates it in minutes where Excel takes hours and lets costly omissions slip through.
SaaS or custom development?
Construction SaaS covers a building SME's standard needs. Custom is the choice for a large group with specific processes, several subsidiaries or deep accounting integration.
| Criterion | Construction SaaS | Custom |
|---|---|---|
| Entry cost | Low | 3,000,000-7,000,000 FCFA |
| Recurring cost | 20,000-60,000 FCFA/mo | Hosting + support |
| Lead time | A few days | 2-4 months |
| Price library | Standard | Bespoke |
| Multi-site/subsidiary | Plan-dependent | Unlimited |
| Accounting integration | Basic | Full |
| Best for | Construction SME | Group, high volumes |
A firm with a few concurrent sites starts with SaaS. A group running dozens of sites that wants to link billing and accounting benefits from investing in custom.
Mini case study
Moussa runs a construction firm in Abidjan with 6 concurrent sites and monthly revenue of 45,000,000 FCFA. His payment disputes froze about 8% of revenue, i.e. 3,600,000 FCFA/month in stuck cash. He adopts SaaS at 45,000 FCFA/month with automatic progress billings, calculated retention and arrears follow-up. Disputes fall 30%, unlocking about 1,080,000 FCFA/month in cash. The tool's cost (45,000 FCFA) is repaid 24 times over in the first month, before counting saved admin time.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Become a Kolonell referral partner
Do you know construction firms, pharmacies, schools or clinics that need vertical business software? Join our referral partner program and earn a commission on every project signed through you.
| Project type | Referral commission |
|---|---|
| Showcase website | 15% + 5% recurring |
| E-commerce | 12% |
| Marketplace | 10% |
| Institutional | 8% |
A single custom construction invoicing project at 5,000,000 FCFA earns you, depending on the category, several hundred thousand FCFA in commission — without writing a line of code.
FAQ
What does construction invoicing software cost in 2026? SaaS runs 20,000-60,000 FCFA/month depending on sites and users. Custom starts at 3,000,000 FCFA and reaches 7,000,000 FCFA for a group with accounting integration.
What is a progress billing and why automate it? It's a project's monthly invoice for work completed. Automating it avoids calculation errors, protects cash flow and saves hours each month versus Excel.
Does the software handle retention and VAT? Yes, it automatically calculates the 5% retention and 18% VAT, then tracks them through to release. No more missed invoices.
How does it reduce payment disputes? By documenting every billing, deposit and reminder, it creates a clear trail that defuses challenges. Firms see roughly 30% fewer disputes.
Can I collect deposits by mobile money? Yes, deposit collection via MTN MoMo, M-Pesa or card is integrated, speeding up cash inflows at the start of a project.
Let's talk about your project. We build your construction invoicing software with progress billings, reminders and mobile money deposits. 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.
