How Much Does SAP Cost

What an SAP implementation costs, and why the quote is rarely the bill

No public average exists for an SAP implementation. There are market ranges, survey findings on overruns and a few documented failures, and together they are enough to budget with open eyes.

By The editors · Updated · 5 min read

Four people around pushed-together tables in a project room, a consultant pointing at a printed plan while a plant manager listens with folded arms, process maps taped to the wall.
Most of an implementation budget is spent on people in rooms like this one.
Contents
  1. The position a project sponsor is in
  2. What the market data says
  3. What the surveys say about overruns
  4. A documented failure: Lidl
  5. The lines a quote tends to leave out
  6. A budget that holds
  7. Questions buyers ask
  8. Sources

An implementation quote is a forecast written by the party that benefits from the project starting. ISG’s research on 200 large companies, reported in February 2026, found nearly 60% of SAP migration projects delayed and over budget⁠1. The useful question for a budget holder is which lines the quote leaves out.

The position a project sponsor is in

A company running ECC has been told that mainstream maintenance ends at the end of 2027⁠2. The migration it is asked to fund is hard to justify on its own terms. In a Freeform Dynamics poll of 455 respondents, 95% of legacy users said that building a positive case to migrate required a big effort or was genuinely challenging⁠3. DSAG’s chairman, Jens Hungershausen, put it plainly in March 2026: “The main problem is a business case of moving to S/4HANA”⁠4. In an ASUG survey reported in May 2026, 61% of members cited budget constraints as a challenge in their S/4HANA migration⁠5.

The result is a project many companies undertake because a date requires it, with a budget set before the scope is understood.

What the market data says

Vendr, a software buying marketplace, publishes ratios drawn from anonymised SAP deals; it does not disclose the sample behind them⁠6.

MeasureVendr’s estimateFor 100 users at $200 to $300 a month
Yearly subscription, S/4HANA Cloud Public Edition$200 to $300 per user a month$240,000 to $360,000
Implementation1 to 3 × the annual subscription$240,000 to $1.08 million
Three-year total cost2.5 to 4 × the first-year subscription$600,000 to $1.44 million

The right-hand column is our arithmetic. For small businesses, CostBench estimates $25,000 to $100,000 to implement SAP Business One, which is sold by quote⁠7.

What the surveys say about overruns

  • ISG, 200 large companies. Nearly 60% of SAP migration projects were delayed and over budget. Fewer than one in five organisations reimplemented processes and technology on S/4HANA, and 49% carried out little or no re-engineering. More than half agreed they had over-customised their legacy ERP⁠1.
  • Gartner. Dixie John, senior director of ERP strategy, has said 70% of ERP initiatives fail to fully meet their original business case and 25% fail catastrophically⁠8.
  • ASUG, 173 members. Business process change was the greatest barrier for 49%, customisations for 44% and organisational inertia for 37%⁠3.
  • DSAG, 198 companies. Of ECC users, 37% plan to switch to S/4HANA by the end of 2027, almost half by the end of 2030, and 4% by the end of 2033⁠9.

ISG’s principal analyst, Michael Dornan, summarised the cause: “A lot of the delays are caused by people, not necessarily the technology”⁠1.

A documented failure: Lidl

Lidl began work on an SAP-based merchandise management system in 2011 and stopped it in July 2018, after about seven years, with the system already live in Austria, Northern Ireland and the United States. An internal memo said the strategic goals as originally defined could not be reached at acceptable expense. Industry observers quoted by the German trade press put the cost at about €500 million; Lidl did not disclose a figure and neither company confirmed it⁠1011. Reporting at the time traced the difficulty to a mismatch between Lidl’s practice of valuing stock at purchase prices and the standard software’s use of retail prices, which led to extensive adaptation⁠11.

The lesson for a budget is specific. The cost came from bending a standard system to a company’s own way of working. The more a company differs from the standard, the more of the budget goes to closing that gap.

The lines a quote tends to leave out

LineWhy it growsEvidence
Process re-engineeringSkipped in planning, discovered in testing49% do little or none⁠1
Custom code and interfacesEvery customisation is reassessed or rebuiltSecond-largest barrier for ASUG members⁠3
Running two systemsECC maintenance continues until cut-over, at two points more from 2028SAP⁠12
Premium support plansThe transition option to 2033 requires the Max Success Plan, charged on topSAP⁠13
Licences for connected systemsIndirect access can require named-user licencesDiageo ruling, 2017⁠14
Renewal after the first term10% or more without a negotiated cap, according to GartnerThe Register⁠15

A budget that holds

  1. Start from scope, not from a per-user figure. List the processes, the custom code and the interfaces that must survive.
  2. Price the re-engineering as its own line. It is the line most often missing⁠1.
  3. Add the cost of the old system until cut-over, including the two-point premium if the project runs past 2027⁠12.
  4. Set contingency from the evidence. If nearly 60% of comparable projects overrun⁠1, a budget with no contingency is a decision to overrun.
  5. Compare against not migrating at all. Put the same five years into a system the company builds and owns, process by process. The reallocation guide shows the method.

Before signing an implementation contract

  • A fixed scope with the customisations named.
  • The re-engineering effort priced separately.
  • The renewal cap for every subscription term.
  • The cost of the old system until the last cut-over date.
  • A stop rule: the conditions under which the project is halted.

The end state worth paying for is a system that fits how the company works without a standing bill for adapting it. Where a packaged migration cannot offer that, the budget is better spent on software the company shapes itself.

Questions buyers ask

What is the average cost of an SAP implementation?

No reliable public average exists. Vendr’s marketplace data puts S/4HANA implementation at one to three times the annual subscription, and three-year cost at 2.5 to 4 times the first-year subscription. Both are estimates from anonymised deals with no disclosed sample.

How much does an S/4HANA migration cost?

It depends on scope and on how much of the old system is re-engineered. The consistent public finding is overrun. ISG research on 200 large companies found nearly 60% of SAP migration projects delayed and over budget, and 49% carried out little or no process re-engineering.

How much does SAP Business One cost to implement?

CostBench estimates $25,000 to $100,000 for a standard small-business deployment. That is a third-party estimate, not an SAP figure; SAP Business One itself is sold through resellers by quote.

Why do SAP projects go over budget?

Survey evidence points to process change and customisation more than to the software. ASUG members ranked business process change first among barriers, at 49%, and customisations second, at 44%. More than half of the companies ISG surveyed agreed they had over-customised their legacy ERP.

Is it cheaper to stay on SAP ECC until 2030?

In the short term, usually. Extended maintenance costs two percentage points more than the existing maintenance basis from 2028 to 2030. It postpones the migration cost and adds three more years of maintenance to the total.

Sources

  1. Most SAP migrations bust budgets and deadlines, study finds. The Register, 5 Feb 2026. Accessed 11 Nov 2026.
  2. Maintenance strategy: SAP S/4HANA and SAP Business Suite 7. SAP Support Portal. Accessed 11 Nov 2026.
  3. Two-fifths of SAP Americas users yet to ditch legacy ERP. The Register, 5 Nov 2025. Accessed 11 Nov 2026.
  4. SAP’s grand cloud escape plan €2B short of the runway. The Register, 19 Mar 2026. Accessed 11 Nov 2026.
  5. SAP’s AI offer to legacy customers comes with a catch. CIO.com, 13 May 2026. Accessed 11 Nov 2026.
  6. SAP software pricing and plans 2026. Vendr. Accessed 11 Nov 2026.
  7. SAP Business One pricing 2026. CostBench. Accessed 11 Nov 2026.
  8. ERP carnage continues as orgs jump in unprepared. The Register, 13 Nov 2025. Accessed 11 Nov 2026.
  9. DSAG Investment Report 2026: AI establishes itself. DSAG, 26 Feb 2026. Accessed 11 Nov 2026.
  10. eLWIS auf HANA-Basis ist tot: Lidl stoppt millionenschweres SAP-Projekt für Warenwirtschaft. Computerwoche, 18 Jul 2018. Accessed 11 Nov 2026.
  11. Lidl cancels SAP introduction having sunk €500 million into it. Consultancy.uk, 13 Aug 2018. Accessed 11 Nov 2026.
  12. SAP S/4HANA: commitment to innovation and maintenance until 2040. SAP News Center, 4 Feb 2020. Accessed 11 Nov 2026.
  13. Navigating your RISE with SAP journey: updates for SAP ERP, private edition, transition option. SAP News Center, 4 Aug 2025. Accessed 11 Nov 2026.
  14. Ditching your call centre for an app? Be careful not to get SAP-slapped. The Register, 20 Feb 2017. Accessed 11 Nov 2026.
  15. SAP private cloud users face 10% renewal hikes, says Gartner. The Register, 14 Oct 2025. Accessed 11 Nov 2026.

Updated 11 Nov 2026: First published.

Further reading

Also in: Deutsch · Français