The verdict in three sentences
An automated dunning workflow connected to your invoicing tool costs between 6,000 and 20,000 EUR in 2026 and deploys in 3 to 6 weeks. It cuts DSO (average days to pay) by 8 to 20 days and reduces bad debt by 20 to 40 %, without hiring a full-time collections role. Better still: personalized, tracked reminders preserve the client relationship far better than late legal recovery.
What a reminder workflow costs in 2026
Price depends on the number of scenarios, channels (email, SMS, mail) and connections to your invoicing or ERP. 2026 ballpark for the market:
| Scope | Price EUR | Timeline | Channels |
|---|---|---|---|
| Simple email reminders (3 levels) | 6,000 - 9,000 | 3 weeks | |
| Multichannel email + SMS + scoring | 10,000 - 15,000 | 4-5 weeks | Email, SMS |
| Full suite + payment portal | 16,000 - 20,000 | 6 weeks | Email, SMS, mail |
| ERP connector option (Sage, Cegid) | +2,500 - 5,000 | +1 week | - |
| Annual maintenance | 900 - 2,400/yr | - | - |
On top of that, sending costs: budget 0.05 to 0.09 EUR per SMS and a transactional email plan of 20 to 90 EUR/month depending on volume.
The measured impact on cash flow
The real value shows in DSO and bad-debt rate. Here are the gains observed (2026 estimate, order of magnitude) depending on process maturity before automation:
| Metric | Before | After | Gain |
|---|---|---|---|
| Average DSO | 52 days | 38 days | -14 days |
| Bad debt > 90 days | 4.2 % | 2.5 % | -1.7 pts |
| Hours/month of manual dunning | 32 h | 6 h | -26 h |
| Invoices chased on time | 60 % | 98 % | +38 pts |
| External collection cost | 3,200 EUR/yr | 900 EUR/yr | -2,300 EUR |
On 4M EUR revenue, cutting DSO by 14 days permanently frees roughly 150,000 EUR of cash.
Mini case study
Claire, CFO of a 45-employee industrial SME in Lyon, manages 620,000 EUR of receivables with a 54-day DSO. She invests 12,000 EUR in a multichannel workflow connected to her Sage ERP, plus 1,800 EUR/year maintenance.
DSO drops to 40 days in four months. On her receivables that is 14 days of daily revenue (roughly 620,000 / 54 x 14), about 96,000 EUR of cash recovered. Old unpaid invoices fall by 38 %, avoiding ~7,000 EUR of annual losses. Her accounting assistant recovers 25 hours a month. The workflow pays for itself in under 3 months on cash and time savings alone.
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FAQ
How much does an automated reminder workflow cost in 2026?
Budget 6,000 to 20,000 EUR depending on channels and connections, plus 900 to 2,400 EUR/year maintenance. An email-only project starts at 6,000 EUR.
How much can I reduce my DSO?
On average 8 to 20 days depending on your starting point. A company still chasing manually gains the most, often 14 days in the first quarter.
Does it damage the client relationship?
On the contrary: graduated, personalized reminders (polite, then firm, then formal notice) are better received than silence followed by litigation. 98 % of invoices are chased on the right date.
Can it connect to Sage or Cegid?
Yes, via API or connector. Budget 2,500 to 5,000 EUR extra and one more week. Payment reconciliation becomes automatic.
How fast does it pay off?
Usually in under 3 months for an SME above 2M EUR revenue, thanks to freed cash and saved dunning hours.
Let's scope your project. Send us your monthly invoice volume, current DSO and invoicing tool: we quote a workflow with channels and connector included. 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.
