Invoicing and dunning automation cost in Dublin in 2026

The verdict in three sentences

Automating the quote → invoice → dunning cycle costs 5,000 to 15,000 EUR for a Dublin SME and deploys in 4 to 8 weeks. The gain shows on two axes: 12 to 20 days of DSO recovered and up to 1 FTE of accounting freed. With several million euros invoiced per year, each day of DSO gained frees several thousand euros of cash.

Cost of quote-invoice-dunning automation

2026 orders of magnitude for the Dublin market, in euros.

Note: the spread of e-invoicing across Europe makes this project all the more strategic in 2026.

Dunning SaaS vs custom

A dunning SaaS (like Sellsy, Upflow) is often enough below 200 invoices/month; beyond that, or with per-segment dunning rules, custom avoids stacking per-user subscriptions.

Designing dunning scenarios that pay

Automating dunning is not just sending a generic e-mail at D+30. The most effective scenarios are segmented: a strategic key account gets a courteous reminder, a risky customer gets a firmer sequence from D+3. You typically chain a friendly reminder before the due date, a first chase at D+3, a firm chase at D+15, then a formal notice at D+30 with, at each step, an online payment link that removes friction. This detail changes everything: a customer chased with a "pay now" button settles on average much faster than one sent to a manual bank transfer. You must also route complex cases to a human: above a certain amount or a declared dispute, the automation stops and alerts the CFO. Finally, measure: 30-day collection rate, average days-to-cash, share of invoices paid via the online link. These indicators drive continuous optimisation of the scenarios and justify the investment to management.

Mini case study

Nadia, CFO of a 38-staff services SME in Dublin. Her company invoices 4.2M EUR/year with a 62-day DSO. An accountant spends 2 hours/day chasing manually. Locked-up receivables reach about 713,000 EUR (4.2M × 62/365).

Nadia invests 11,000 EUR in quote-invoice-dunning automation with an online payment link, delivered in 6 weeks. DSO drops to 47 days (-15 days), freeing ~173,000 EUR of cash (4.2M × 15/365). In parallel, 0.6 FTE of accounting is reassigned (~25,000 EUR/year). The project pays back in under 6 months on staff cost alone, before counting the cash gain.

FAQ

How much can you cut DSO? A well-calibrated automation recovers 12 to 20 days on average. On 4M EUR/year of invoicing, each day of DSO gained is worth ~11,000 EUR of cash.

How much dunning time do you save? Expect 1.5 to 2.5 hours/day of manual work removed, i.e. 0.4 to 0.7 FTE, or 15,000 to 30,000 EUR/year.

Dedicated software or custom? Below 200 invoices/month, a SaaS at 40-200 EUR/month is enough; beyond, custom (5,000-15,000 EUR) becomes more profitable over 3 years.

Does e-invoicing change the project? Yes: the regulatory push makes automation near-unavoidable in 2026; use the opportunity to build dunning in from the start.

What ROI to expect? Most often under 8 months, as freed cash and saved FTE quickly cover the 5,000-15,000 EUR invested.

Let's scope your project. Give us your invoiced revenue, current DSO and accounting tool: we price a bespoke dunning scenario. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.