The verdict in three sentences
Automating invoicing, follow-ups and reconciliation in a firm costs 5,000 to 20,000 EUR in 2026 depending on integration with the existing tool. The main gain is cutting DSO by 15 to 30 days and reducing bad debt. ROI is fast because each DSO day saved frees cash immediately.
How much the automation costs
Cost depends on scope: simple email dunning, or a full issue-dun-reconcile chain wired to the bank and billing tool.
| Scope | Functions | 2026 cost | Timeline | Monthly |
|---|---|---|---|---|
| Email dunning only | Automatic sequences | 5,000 - 8,000 EUR | 3 wks | 30 - 100 EUR |
| Invoicing + dunning | Auto issue + multichannel | 8,000 - 14,000 EUR | 4 wks | 80 - 250 EUR |
| + Bank reconciliation | Automatic matching | 12,000 - 18,000 EUR | 5 wks | 150 - 400 EUR |
| Full chain + reporting | DSO, aging, alerts | 15,000 - 20,000 EUR | 6 wks | 200 - 500 EUR |
Impact on DSO and cash
Multichannel dunning (email, SMS, scheduled call) and consistency lower payment delays. Here is a 2026 order of magnitude.
| Metric | Before | After automation | Effect |
|---|---|---|---|
| Average DSO | 62 days | 38 days | -24 days |
| Bad-debt rate | 4.5 % | 1.8 % | -60 % |
| Dunning time / month | 20 h | 4 h | -16 h |
| Reconciliation time / month | 14 h | 3 h | -11 h |
| Overdue > 90 days | 8 % | 3 % | -5 pts |
Mini case study
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Marie, managing partner of a 22-person accounting firm in Montreal, had a 60-day DSO and 25 h/month spent on dunning and matching. Automation at 13,000 EUR (about 19,000 CAD) wired to her billing tool brings DSO to 40 days. On an average receivable of 800,000 EUR, 20 DSO days saved free about 44,000 EUR of cash, plus 21 h/month saved. ROI in under 6 months.
FAQ
Does it integrate with my billing tool? Yes, via API or export/import. Most tools (Sage, QuickBooks, Pennylane, etc.) expose the invoices and payments needed for dunning and matching.
How much does DSO drop? Usually 15 to 30 days depending on the starting point and discipline. The gain comes mostly from consistency and multichannel.
Do follow-ups stay personalized? Yes: tone, timing and channels are configurable per customer segment. We keep human escalation for large accounts.
How long to set up? 3 to 6 weeks depending on scope (dunning only vs full chain with reconciliation).
Is bank reconciliation reliable? Automatic matching handles 80 to 90 % of entries; the rest goes to assisted manual review. That cuts reconciliation time by 4 to 5 times.
Let's scope your project. Share your billing tool, current DSO and average receivable: we will price the automation and the cash gain. 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.
