The verdict in three sentences
For a trade association with 400 member companies, the first payoff of a member portal is financial: moving from a dues collection rate of 60 to 70 % to above 85 % thanks to online payment and automatic reminders. Generic membership software is cheap but handles tiered corporate dues, company-name receipts and your own payment rails poorly. A custom member portal sits between 2,500,000 and 4,000,000 FCFA (3,810 to 6,100 EUR) on the Kolonell grid, delivered in 8 weeks, with maintenance at 75,000 FCFA (110 EUR) per month.
What manual member management costs
In London, many trade associations and sector federations still run members from a spreadsheet, invoices chased by the office team, and event lists managed by email. Dues usually depend on company size: for example 230 EUR for a small firm, 760 EUR for a mid-size company, 2,290 EUR for a large group.
| Indicator (2026 order of magnitude) | Manual management | Online member portal |
|---|---|---|
| Dues collection rate | 60 to 70 % | 85 to 92 % |
| Average payment delay after renewal notice | 90 to 120 days | 20 to 40 days |
| Office time per month (chasing, receipts) | 40 to 60 hours | 8 to 12 hours |
| Member directory up to date | once a year | continuously, by members |
| Event registrations | email lists, duplicates | form, badge, payment |
| Access to documents (briefings, studies) | sent by email | members-only library |
On expected dues of 183,000 EUR a year, each collection point is worth 1,830 EUR. Gaining 15 points brings in about 27,400 EUR more.
Modules and their cost
A well-designed member portal stays simple for the executive who logs in twice a year, and powerful for the secretariat.
| Module | Content | Indicative share of budget |
|---|---|---|
| Company accounts | company profile, registration number, multiple contacts, dues band | 15 % |
| Online dues | annual renewal, card, direct debit, mobile wallets where relevant, PDF receipt in the company name | 25 % |
| Automatic reminders | email, SMS, WhatsApp at D+15, D+30, D+60 | 10 % |
| Searchable directory | search by sector, region, size, visible to members and partly to the public | 15 % |
| Events | registration, payment, QR badges, attendance list | 15 % |
| Documents and news | economic briefings, studies, members-only minutes | 10 % |
| Secretariat dashboard | collection by band, accounting exports | 10 % |
On the Kolonell grid, an app of this complexity sits between 2,500,000 and 4,000,000 FCFA (3,810 to 6,100 EUR). A version adding an intranet for working committees and online voting falls in the next band, 4,000,000 to 7,000,000 FCFA (6,100 to 10,670 EUR).
Generic membership software or custom build
| Criterion | Membership SaaS (market estimate) | Kolonell custom portal |
|---|---|---|
| Upfront cost | 0 to 760 EUR setup | 3,810 to 6,100 EUR |
| Recurring cost | 60 to 230 EUR per month | maintenance 110 EUR per month |
| Local or multiple payment rails | depends on vendor | native |
| Tiered corporate dues | partial | fully custom |
| Receipts in the company name | fixed template | your template |
| Hosting and data | vendor's choice | your hosting choice, UK GDPR compliant |
UK GDPR applies to member executives' contact data: lawful basis, privacy notice and access security are part of scoping.
Mini case study
Illustrative example: Helen, chief executive of a London trade association with 400 member companies, expects 183,000 EUR in dues a year and collects 119,000 EUR (65 %).
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- Investment: 4,880 EUR for the member portal (3,200,000 FCFA), plus 110 EUR per month maintenance, i.e. 1,320 EUR a year.
- Cautious assumption: collection rises to 80 % in year one, i.e. 146,400 EUR, so 27,400 EUR more.
- Payment fees: around 1.5 % by card, i.e. 2,200 EUR.
- Office time saved: 40 hours per month.
The project pays for itself at the first renewal campaign, with a surplus of more than 19,000 EUR in year one.
FAQ
How much does a member portal for a trade association cost?
On the Kolonell grid, expect 2,500,000 to 4,000,000 FCFA (3,810 to 6,100 EUR) for a full portal with dues, directory, events and documents. Maintenance is 75,000 FCFA (110 EUR) per month.
Can members pay dues online?
Yes, card payment and direct debit are built in, plus Wave or Orange Money for members in West Africa, with an automatic PDF receipt in the company name. Bank transfers remain possible and are matched in one click.
How long to go live?
Allow 8 weeks: 2 weeks scoping and member data migration, 5 weeks build, 1 week acceptance testing with the secretariat.
Is the directory public?
You choose field by field. Typically name, sector and city are public, while executives' contact details stay visible to logged-in members only.
What about members who are not comfortable online?
The secretariat can record a payment or registration on their behalf. A direct payment link by SMS also avoids account creation for 70 to 80 % of use cases.
Let's scope your project. Tell us your member count, dues bands and annual events, and we will price your member portal within the 2,500,000 to 4,000,000 FCFA range (3,810 to 6,100 EUR) with an 8-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.