The verdict in three sentences
Automating invoicing and collections turns a reactive cash-flow chore into a governed process: invoices go out in the right format, reminders fire without gaps and DSO drops by 10 to 20 days. The 2026 budget sits between GBP 9,000 and GBP 28,000 depending on invoice volume and how deeply it integrates with your accounting software. The ROI comes less from the tool than from avoided bad debt and hours handed back to the finance team.
What automation actually covers
The goal is not another tool but an orchestrated chain: issue, send, track, chase, reconcile, allocate. In 2026 e-invoicing (structured formats, digital exchange platforms) is spreading fast across UK and EU B2B trade, which makes the investment doubly useful: compliance and productivity.
| Task | Manual (before) | Automated (after) |
|---|---|---|
| Issue an invoice | 8-12 min | 1-2 min |
| Send and archive | Manual, scattered | Auto, timestamped |
| First overdue chase | Often missed | Day+3 automatic |
| Reminder sequence | Ad hoc | 3 scheduled tiers |
| Payment allocation | Line by line | Auto reconciliation |
| DSO reporting | Excel file | Live dashboard |
What it costs and what moves the price
Price depends on three variables: monthly invoice count, number of sources to connect (CRM, ERP, bank) and how bespoke the reminders are. Here is a 2026 order of magnitude.
| Scope | Invoices/month | Setup budget (GBP) | Timeline |
|---|---|---|---|
| Essential (reminders + send) | < 80 | 9,000 - 14,000 | 3-5 wks |
| Standard (+ e-invoicing) | 80 - 300 | 14,000 - 20,000 | 5-8 wks |
| Advanced (+ ERP + bank match) | > 300 | 20,000 - 28,000 | 8-12 wks |
| Maintenance subscription | - | 180 - 550 /mo | - |
Mini case study
Sarah, finance controller at a 45-person industrial SME in London, issues 210 invoices a month. Before automation, DSO runs at 58 days and an assistant spends 14 hours a month chasing payments. After a GBP 18,000 project, DSO falls to 41 days. On GBP 7.2M revenue, those 17 saved days free roughly GBP 335,000 in cash. The 14 hours drop to 3: at a loaded cost of GBP 34/hour, annual savings top GBP 4,500. The project pays back in under five months, cash flow aside.
FAQ
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How long does a collections automation take to deploy?
For an essential scope, expect 3 to 5 weeks: connecting your accounting tool, defining reminder tiers and testing. A project with e-invoicing and bank reconciliation runs 8-12 weeks.
Does automation handle 2026 e-invoicing?
Yes: the chain issues structured formats and connects to a digital exchange platform. It is the right moment to solve compliance and productivity in one project rather than twice.
What DSO gain can we expect?
A 10 to 20 day reduction is realistic where chasing was irregular. Each day of DSO removed frees roughly GBP 20,000 of cash for an SME on GBP 7M revenue.
Do we have to change accounting software?
Rarely. We interface with your existing stack (Xero, Sage, QuickBooks, NetSuite) via API or export. Replacement is only justified if the current tool blocks all connections.
What maintenance budget should we plan?
Between GBP 180 and GBP 550 a month depending on volume and regulatory changes. It covers format updates, flow monitoring and support.
Let's scope your project. Share your monthly invoice volume, current accounting software and target DSO and we will price the right automation. 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.
