The verdict in three sentences
For a technical distribution SME in Miami running on 3 Access databases and 25 shared Excel workbooks, migrating to a web app costs USD 30,000 to 70,000 in 2026, preceded by a USD 3,000 to 6,000 audit. The project ships in about 3 months and removes roughly one day of re-keying per week, while ending the monthly file corruptions. Hosting then costs USD 60 to 180 a month, far less than an hour of lost data.
Symptoms that justify the migration
Access and Excel have served well for fifteen years. The trouble starts when five people open the same file on a shared drive: locks, duplicates, overwritten formulas, a database exceeding 2 GB that refuses to open. The original Access developer has often left, and nobody dares touch the VBA macros. Every month, someone spends half a day restoring a backup and re-entering lost orders.
| Stage | Scope | Estimated 2026 cost (USD) | Duration |
|---|---|---|---|
| Audit of existing tools | Map of 3 databases, 25 workbooks, macros and flows | 3,000 to 6,000 | 1 to 2 weeks |
| Unified data model | Customers, items, suppliers, orders, price lists | 5,000 to 9,000 | 2 weeks |
| Business screens | Order entry, quotes, inventory, pricing | 14,000 to 34,000 | 6 to 8 weeks |
| Data migration | Cleaning, deduplication, import of 15 years of history | 5,000 to 12,000 | 2 weeks |
| Role-based access and audit trail | Sales, purchasing, management roles, change log | 3,000 to 8,000 | 1 week |
| Exports and training | Excel exports, printable reports, team training | 3,000 to 7,000 | 1 week |
Total development falls between USD 30,000 and 70,000 depending on the number of screens and the quality of the source data. Very inconsistent data (duplicate item codes, customers entered three different ways) pushes migration toward the top of the range.
Comparing the three possible paths
| Criterion | Stay on Access and Excel | Off-the-shelf ERP | Custom web app |
|---|---|---|---|
| Upfront cost | USD 0 | USD 40,000 to 100,000 | USD 33,000 to 76,000 (audit included) |
| Annual cost | Lost time, about USD 22,000 | USD 10,000 to 30,000 in licences | USD 720 to 2,160 hosting + maintenance |
| Fits specific pricing rules | Yes, fragile | Costly configuration | Yes |
| Remote and mobile access | No | Yes | Yes |
| Corruption risk | High | Low | Low |
| Time to go live | Immediate | 6 to 12 months | About 3 months |
A full ERP makes sense if the SME also wants to overhaul accounting and logistics. If the goal is to make current tools reliable without changing how the business works, a custom app keeps the existing logic and team habits, then connects to accounting software (QuickBooks, Xero) by export or API. Ongoing maintenance generally runs USD 3,000 to 7,000 a year.
Mini case study
Carlos runs a technical parts distributor in Miami with 14 employees. An assistant spends one day a week re-keying orders between Access and Excel, 46 days a year at a loaded USD 340 a day: USD 15,600 a year. Add about 4 half-days of corruption incidents for 3 people, roughly USD 2,000. His project costs USD 4,500 for the audit and USD 45,000 for development, plus USD 110 a month of hosting. With about USD 17,600 of annual gains, payback comes in just under 3 years, not counting pricing errors avoided on quotes.
FAQ
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How much does it cost to migrate an Access database to a web app?
In 2026, budget USD 30,000 to 70,000 for an SME with 3 databases and about twenty workbooks, plus USD 3,000 to 6,000 for the audit. A single simple database can come in around USD 15,000.
Can all historical data be recovered?
Yes, migration includes cleaning and importing history, even over 15 years. Duplicates are handled before import, which costs USD 5,000 to 12,000 depending on file condition.
Will teams still be able to export to Excel?
Yes, Excel exports are available on every list. Excel becomes an analysis tool again, never the source of truth.
Where is the data hosted?
On a US data centre server for USD 60 to 180 a month with daily backups. Role-based access and the audit trail support compliance with customer and supplier contract requirements.
How long does cutover take without stopping operations?
Allow about 3 months, with one week of parallel running before the final switch. Cutover often happens on a Friday evening for a Monday restart.
Let's scope your project. List your critical Access databases and workbooks: we start with a USD 3,000 to 6,000 audit and price a migration between USD 30,000 and 70,000, delivered in about 3 months. 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.
