Strategy & ROIAugust 28, 2025

Outsource or Build AI In-House: The Strategic Dilemma

A comparative analysis to help your SMB decide whether to develop AI internally or outsource it.

By Gildas Garrec·4 min

Outsource or Build AI In-House: The Strategic Dilemma

A comparative analysis to help your SMB decide whether to develop AI internally or outsource it.

Table of Contents: ROI (Return on Investment) is the bottom line for every SMB leader. Investing in AI, automation, or digital transformation isn't a gut-feeling decision — it requires hard numbers, a solid business case, and a clear picture of the expected return.

Why AI ROI Is So Often Miscalculated

Most companies calculate AI ROI too narrowly, focusing only on direct costs avoided. But the benefits of AI are multidimensional:

Direct Gains (Easy to Measure)

  • Hours of work saved
  • Reduction in errors and rework
  • Lower processing costs

Indirect Gains (Harder to Measure, but Often Greater)

  • Improved customer satisfaction → loyalty → recurring revenue
  • Faster time-to-market → competitive advantage
  • Better use of data → smarter decisions
  • Scalability → ability to grow without hiring proportionally

Strategic Gains (Long-Term)

  • Higher company valuation at exit
  • Employer attractiveness
  • Resilience in times of crisis

The KKB Method for Calculating AI ROI

Phase 1: Identify Current Costs

For each targeted process:
  • Time spent (hours/week × fully-loaded hourly cost)
  • Error rate and cost of correction
  • Delays and opportunity costs
  • Current tools and their costs

Phase 2: Estimate the Gains

  • Time saved with AI/automation
  • Reduction in error rate
  • Faster turnaround times
  • Savings from replaced tools

Phase 3: Calculate the Total Investment

  • Cost of the AI solution (license/development)
  • Implementation cost (integration, configuration)
  • Team training cost
  • Annual maintenance cost

Phase 4: Calculate the ROI

ROI = (Annual Gains - Total Annual Cost) / Initial Investment × 100

An ROI of 200% means that for every €1 invested, you get €3 back.

Real-World ROI Examples by Use Case

| Use Case | Investment | Annual Gain | ROI | Payback |
|----------|------------|-------------|-----|---------|
| Customer service chatbot | €15,000 | €45,000 | 200% | 4 months |
| Accounting automation | €10,000 | €35,000 | 250% | 3 months |
| AI sales agent | €20,000 | €80,000 | 300% | 3 months |
| Analytics + dashboard | €8,000 | €20,000 | 150% | 5 months |
| HR automation | €12,000 | €30,000 | 150% | 5 months |

These figures are based on SMBs with 20–50 employees that we have worked with. Your ROI will depend on your specific context.

Funding Your AI Project: The Available Levers

Public Funding

  • Crédit Impôt Innovation (CII): 20% of innovation expenses (including AI) reimbursed
  • BPI France: innovation loans, French Tech grants, funded diagnostics
  • France Num: digital vouchers from €500 to €6,500
  • Regional grants: every region has its own digital support schemes
  • FNE-Formation: funding for AI training for your teams

Private Financing

  • Technology leasing: spread the investment over 24–36 months
  • Revenue sharing: some providers share the risk with you
  • SaaS: subscription model instead of upfront investment

The Impact on Payroll

One of the strongest arguments in an AI business case is workforce optimization. Let's be straightforward about it:

  • Short term (0–6 months): no headcount reduction, but task redistribution
  • Medium term (6–18 months): natural attrition (resignations, retirements) is not replaced where roles have been automated
  • Long term (18+ months): purely task-based roles disappear, replaced by hybrid profiles (human + AI)
The typical gain: 20–30% of payroll costs across support functions (admin, accounting, tier-1 customer service), partially reinvested in higher-skilled profiles.

Building a Compelling Business Case

To win over your partners, your bank, or your board of directors:

  • Start with the pain points: what are the concrete problems that are costing money?
  • Put a number on everything: every lost hour, every error, every missed opportunity
  • Propose a POC: a small-budget pilot to prove the concept
  • Show references: similar SMBs that have succeeded
  • Address the risks: and the mitigations that go with them
  • Go further: check out our Complete Guide to AI ROI and Funding for SMBs for full coverage of the topic.

    Conclusion

    AI is the highest-ROI investment an SMB can make in 2026. With average returns of 150–300% and payback periods of 3–6 months, the real risk isn't investing — it's not investing.

    Calculate your AI ROI: get your personalized estimate within 48 hours.