The verdict in three sentences
For a regional professional body with 5,000 registrants, a custom platform that digitises annual fees, certificates and continuing education costs 40,000 to 120,000 EUR excl. VAT, delivered in 5 to 8 months, then about 15% a year in maintenance. Online payment fees range from a few cents per SEPA direct debit to 1.4 to 2.9% per card payment, i.e. 10,000 to 25,000 EUR a year depending on the mix. The project breaks even in 4 to 5 years on freed-up staff time alone, sooner once fewer unpaid fees are counted, provided it goes live before the annual fee campaign.
Modules and their budget
The budget depends mostly on how complex the continuing education rules are (three-year obligations, activity categories, exemptions) and on the number of integrations with your existing tools.
| Module | Main features | Budget excl. VAT (2026 order of magnitude) |
|---|---|---|
| Member area and directory | Secure login, profile, contact updates, public directory | 8,000 to 20,000 EUR |
| Online fees | Annual call, instalment plan, card and SEPA, automatic reminders, receipts | 8,000 to 22,000 EUR |
| PDF certificates | Registration and paid-up certificates, verification QR code | 4,000 to 12,000 EUR |
| Continuing education | Hours declaration, proof upload, obligation tracking, alerts | 10,000 to 30,000 EUR |
| Back office for staff | Validation, accounting exports, dashboards, audit log | 6,000 to 18,000 EUR |
| Integrations | Accounting software, email marketing, institutional website, training providers | 4,000 to 18,000 EUR |
| Platform total | 40,000 to 120,000 EUR |
A frequently requested option: a qualified eIDAS electronic seal on certificates, for 300 to 1,000 EUR a year, which lets an employer or an administration check the document's authenticity. A QR code pointing to a verification page already covers most use cases.
Payment fees on annual dues
Take 5,000 registrants and an average fee of 350 EUR, i.e. 1,750,000 EUR collected a year. The payment method matters more than the provider.
| Payment method | Indicative 2026 fees | Cost if 100% of fees use this channel |
|---|---|---|
| SEPA direct debit via a payment provider | 0.35 EUR per debit | 1,750 EUR |
| Card via a bank e-commerce contract | 0.8 to 1.4% | 14,000 to 24,500 EUR |
| Card via Stripe (European cards) | 1.5% + 0.25 EUR | 27,500 EUR |
| PayPal | 2.9% + 0.35 EUR | 52,500 EUR |
| Manual bank transfer | 0 EUR in fees, 5 minutes of reconciliation | About 2,900 EUR of staff time |
| Realistic mix (60% SEPA, 35% Stripe card, 5% transfer) | About 10,900 EUR |
Offering interest-free direct debit in three or ten instalments raises on-time payment rates and sharply lowers costs. It is also the most effective lever against postal reminders.
A realistic 5 to 8 month schedule
| Phase | Duration | Deliverable |
|---|---|---|
| Scoping, business rules and mock-ups | 4 to 6 weeks | Specifications approved by the board |
| Phase 1: member area and fees | 8 to 10 weeks | Online payment live |
| Phase 2: certificates and continuing education | 6 to 10 weeks | PDF certificates and hours tracking |
| Data migration (registrant file, history) | 2 to 4 weeks, in parallel | Cleaned, deduplicated database |
| Testing, RGAA accessibility and security | 3 to 4 weeks | Test report, accessibility statement |
| Go-live and staff training | 1 to 2 weeks | Platform online before the fee campaign |
French professional bodies carry out a public service mission: plan for RGAA accessibility compliance and an accessibility statement from the specification stage, with an audit costing 3,000 to 8,000 EUR. On the GDPR side, the record of processing and the retention period for training evidence must be set before development.
Mini case study
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Illustrative scenario: Hélène, secretary general of a regional professional body with 5,000 registrants in Lyon, currently handles 1,200 fee cheques, 3,000 certificate requests by email and manual checks of training hours. These tasks take about 1,400 hours a year of staff time, i.e. 49,000 EUR at 35 EUR per loaded hour. She prices a platform at 80,000 EUR excl. VAT, with 12,000 EUR of maintenance a year from year two, 4,500 EUR of hosting and 10,900 EUR of payment fees a year. Over five years the total cost reaches 204,000 EUR. If the platform removes 80% of the 1,400 hours, the annual saving is 39,200 EUR, or 196,000 EUR over five years: the project breaks even after five years on time savings alone, and sooner once fewer unpaid fees and postal reminders are counted.
FAQ
Can we keep our current registrant management software?
Yes, if it exposes an API or a regular export. A daily sync usually costs 4,000 to 10,000 EUR excl. VAT and avoids a full data migration.
Do PDF certificates have evidential value?
A certificate with a unique number and a QR code pointing to a verification page is enough in most cases. For demanding administrative use, a qualified eIDAS electronic seal costs 300 to 1,000 EUR a year.
How much does maintenance cost each year?
Budget about 15% of the initial cost, i.e. 6,000 to 18,000 EUR excl. VAT a year. It covers bug fixes, security updates and yearly adjustments to fee rules.
What timeline if we want to be ready for the next fee campaign?
Allow at least 5 months between signature and payment opening. Launching in two phases, fees first and continuing education second, reduces the risk of delay.
Should we pick an off-the-shelf SaaS instead of custom?
Association management tools cost 2,000 to 8,000 EUR a year but handle the continuing education obligations specific to each body poorly. Custom is justified as soon as those rules are specific or you exceed a few thousand registrants.
Let's scope your project. Tell us your number of registrants, your fee and continuing education rules and the date of your next campaign: we will price the platform phase by phase, with a schedule you can hold. 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.
