The Real ROI of Digitizing Your Invoices: When Does DocFlow Pay for Itself?

Calculating the ROI of a software tool has a reputation for being a theoretical exercise producing optimistic numbers that rarely materialize. In DocFlow's case, the situation is different because the savings are directly measurable: fewer hours of manual work on a specific and quantifiable task.

Let's look at the calculation with real, conservative numbers.

Step 1: Quantify Current Time

The first step is knowing how much time your team currently spends processing supplier invoices. The most honest estimate comes from measuring real time, not theoretical. Ask the person who does this task to record for one week how much time they dedicate to processing invoices. The result usually surprises.

Industry reference is 3-6 minutes per invoice in manual entry in accounting software, depending on document format complexity, document legibility, and the person's familiarity with the supplier. For a conservative estimate, we'll use 4 minutes.

A medium hotel with 200 monthly invoices dedicates 800 minutes, or about 13.3 hours per month, to manual invoice entry.

Step 2: Calculate the Cost of Time

The hourly cost of an administration profile in the hotel sector varies by country and company, but a reasonable estimate for a full-loaded employee cost (including benefits, payroll taxes) typically runs €16-22 per hour. Using €16/hour for conservative calculation:

13.3 hours × €16/hour = €212.80 per month in direct labor cost of invoice entry. Annually: €2,553.

This is only the direct cost. The opportunity cost (what that person could do with those 13 hours per month if not dedicated to data entry) is not included in the calculation, but is real: cost analysis by supplier, comparisons, budget tracking.

Step 3: Calculate the Cost of Errors

The cost of manual invoice entry errors has several components. Duplicate invoices that are paid twice and not detected until bank statement reconciliation are the most direct cost. In a hotel processing 200 invoices per month, a 1% duplication rate (2 duplicate invoices per month) at an average amount of €150 means €300 per month in improper payments, many of which are never recovered.

VAT assignment errors generate discrepancies in tax declarations that can generate tax authority inquiries, with the management cost and possible late interest. Error correction time: each error detected in accounting requires 15-45 minutes of work to find and correct.

Savings with DocFlow

With DocFlow, processing time per invoice drops from 4 minutes to approximately 20 seconds of review and confirmation. For 200 monthly invoices, total time drops from 13.3 hours to under 1.2 hours. The saving is more than 12 monthly hours.

At €16/hour, the monthly saving is €192 in labor cost alone. Annually: €2,304. Adding savings from errors and duplicates, the total annual saving can exceed €3,000 for a medium hotel.

Conclusion

DocFlow's ROI doesn't depend on optimistic assumptions or intangible benefits that are hard to measure. The time saving is calculable with precision, the cost of that time is known, and the payback period for most medium hotels is under 2 months. Few software investments have a return as clear, fast, and verifiable as automating invoice entry with DocFlow.