Upgrade Dynamics NAV to Business Central
Still on Dynamics NAV / Navision or an older Business Central on-premises version? Upgrade to the latest Business Central — in the cloud (SaaS) or on-premises — bringing your data, customizations and Thai tax setup with you.
NAV is reaching the end of Microsoft support
Dynamics NAV 2018 was the last NAV release before the product became Business Central.
| Version | Status | What it means |
|---|---|---|
| Dynamics NAV 2018 | Mainstream support ended 10 Jan 2023 · extended support ends 11 Jan 2028 | Security updates only today, and no fixes from Microsoft after January 2028 |
| NAV versions before 2018 | Out of support or close to it | No new features — and the longer you wait, the bigger the upgrade |
| Older Business Central on-premises (e.g. BC14) | Each version is supported for a limited time after release | Upgrade regularly to stay on a version Microsoft supports |
Based on Microsoft’s lifecycle policy · dates may change if Microsoft updates its announcements
What changes when you move from NAV to Business Central
Web and mobile access
Work in the browser, on tablets and phones — no client installation on user PCs.
Customizations as extensions
Customizations sit outside the base application, so future upgrades are far easier than with C/AL changes in NAV.
Microsoft 365 and Power BI
Works with Excel, Outlook, Teams and Power BI without extra development.
Copilot and AI agents (cloud)
Business Central Online adds Copilot and AI agents for sales, payables and document work.
Automatic updates (cloud)
Business Central Online is updated by Microsoft twice a year — no more large upgrade projects.
Thai tax as an extension
Thai VAT and PND 3/53 reports and Thai-format documents with Triple P’s Thai localization app on Microsoft AppSource.
Four ways to upgrade
NAV to Business Central Online (SaaS)
Move to the Microsoft Cloud: no servers, automatic updates and Copilot, with customizations converted to extensions.
NAV to Business Central on-premises
Keep your own servers and control when updates happen — for organizations that must keep data in-house.
Upgrade Business Central on-premises
On an older version such as BC14? Upgrade to the current release for new features and security fixes.
Move Business Central on-premises to the cloud
Migrate your data to Business Central Online with Microsoft’s Cloud Migration tool.
Cloud or on-premises?
| Topic | Cloud (SaaS) | On-premises |
|---|---|---|
| Servers and database | Managed by Microsoft | Managed by you (or your provider) |
| Updates | Automatic, twice a year | Upgrade projects on your own schedule |
| Copilot and AI agents | Available | Most features not available |
| Customizations | Extensions only | Extensions (more flexibility for internal integrations) |
| Best for | Teams that do not want to run servers and want continuous new features | Organizations that must keep data in-house or have many internal integrations |
Choose how to bring your data across
| Full upgrade with history | Fresh start (re-implementation) | |
|---|---|---|
| Data moved | All historical transactions | Master data, opening balances and open documents |
| Old data | Everything in the new system | Old system kept for look-ups |
| Chance to improve processes | Low — you keep the current design | High — redesign and clean out unused data |
| Best for | Well-working systems with clean data that need history in one place | Heavily customized systems or businesses whose processes have changed a lot |
Upgrading without disrupting your business
Assess
Review your version, customizations, data, reports and integrations.
Plan
Choose cloud or on-premises and the data approach, with scope, timeline and quote.
Convert
Convert C/AL to AL extensions, remove what BC now covers, and set up Thai localization.
Test
Run several test upgrades on real data and user acceptance testing.
Go live & support
Cut over on a weekend with a rollback plan, then support after go-live.
NAV upgrade questions
Which NAV versions can be upgraded to Business Central?
Can we keep using NAV 2018?
Do we have to migrate all historical data?
Will we lose our existing customizations?
Cloud (SaaS) or on-premises?
How is Thai tax handled in Business Central?
How much does an upgrade cost?
How long will the system be unavailable?
Start with an assessment of your current system
Tell us your NAV or Business Central version and we will recommend the right upgrade path.