The verdict in three sentences
For a contractor in Abidjan running 10 to 30 sites at once, progress billing software falls in Kolonell's mid-range (4 to 7 M FCFA) or complex (7 to 15 M FCFA and up) application grid as soon as it handles take-offs, advances and retainage. The realistic goal is to cut progress bill issue time from 10 to 3 days after month-end, which brings cash in that much sooner. In the US or Europe, comparable custom builds supporting AIA G702/G703 style billing are typically quoted at 30,000 to 100,000 USD on the market.
Why progress bills go out late
In most mid-sized Ivorian contractors, the monthly progress bill is built in three steps: the site manager reports progress on paper or WhatsApp, the quantity surveyor recalculates quantities in Excel, then accounting applies advances, retainage and price escalation. Each round trip costs one or two days, and a mistake on retainage or advance recovery can get the bill rejected by the client.
| Progress bill item | Common 2026 rule (order of magnitude) | Frequent error without a tool |
|---|---|---|
| Progress per bill of quantities line | Cumulative quantities validated on site | Wrong cumulative total month to month |
| Advance payment | Often 10 to 20% of the contract depending on terms | Recovery deduction forgotten or doubled |
| Retainage | 5% of each bill, released after final acceptance (5 to 10% in the US) | Not applied or wrongly accumulated |
| Price escalation | Contract formula with indices | Index not updated |
| Change orders | Signed amendment or site instruction | Billed without paperwork, so rejected |
| VAT and tax withholding | Depends on client status | Inconsistent on public contracts |
What the tool costs in 2026
Kolonell amounts follow its official grid dated 11/10/2026; other options are market orders of magnitude.
| Option | Upfront cost | Recurring cost | Lead time |
|---|---|---|---|
| Excel + WhatsApp | Close to zero | 8 to 10 day billing cycle | Immediate |
| European or US construction SaaS (market) | Setup often billed in EUR or USD | 50 to 150 EUR per user per month, poor fit for local contracts | 2 to 4 months |
| Kolonell mid-range app (progress, bills, retainage, photos) | 4 to 7 M FCFA (6,100 to 10,670 EUR) | Kolonell maintenance 75,000 FCFA per month | 10 to 14 weeks |
| Kolonell complex app (take-offs, escalation, change orders, multi-entity, accounting link) | 7 to 15 M FCFA and up (10,670 to 22,870 EUR and up) | Kolonell maintenance 120,000 FCFA per month | 4 to 6 months |
| Offline mobile app for site managers | Included in the complex scope | Smartphones and data plans | With the main release |
| Custom AIA billing build in the US (market) | 30,000 to 100,000 USD | 15 to 20% of build per year | 4 to 8 months |
The scope that wins back seven days
Four features deliver most of the gain. Mobile progress entry, usable offline on site, with geotagged and timestamped photos that serve as evidence for the engineer. The billing engine that computes cumulative totals, advance recovery, 5% retainage, escalation and VAT from the bill of quantities. The approval flow from site manager to technical director to accounting, with automatic reminders. The work-in-progress dashboard: bills issued, approved, paid, and retainage to release per site. Export to your SYSCOHADA-compliant accounting software removes double entry.
Mini case study
Yao, technical director of a 120-employee contractor in Abidjan (illustrative case), runs 18 sites and bills about 900 M FCFA of progress payments a month. Issuing bills 7 days earlier brings collections forward by the same amount of time. With a bank overdraft at 10% a year, the gain is 900 M x 10% x 7 / 365, about 1.7 M FCFA per month or 20 M FCFA per year. A complex app at 9 M FCFA, plus 1.44 M FCFA of annual maintenance, pays back in under 6 months, before counting bills no longer rejected for calculation errors.
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FAQ
How much does progress billing software cost in Abidjan?
At Kolonell, a mid-range app costs 4 to 7 M FCFA and a complex app with take-offs, escalation and multi-entity support 7 to 15 M FCFA and up. Maintenance runs 75,000 to 120,000 FCFA per month depending on the level.
Does the app work without network on site?
Yes, the mobile module records progress and photos offline, then syncs as soon as 3G or 4G returns. Photos are compressed to stay under 300 KB each.
Does it handle retainage and advance payments?
Yes, 5% retainage is accumulated per site and released at final acceptance, and the advance is recovered by deduction at the contractual rate. Parameters are set contract by contract.
How quickly is the tool operational?
Allow 10 to 14 weeks for a mid-range app and 4 to 6 months for a complex app. A pilot on 3 sites over two billing cycles secures the rollout.
Can it be used for public contracts?
Yes, the bill format is configurable to the public client's requirements and applicable tax withholdings. Supporting documents (site instructions, amendments, photos) are attached automatically.
Let's scope your project. Tell us your number of sites, monthly billing volume and accounting software: we will define the scope, a budget between 4 and 15 M FCFA and the timeline. 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.
