Microsoft has published a clear end date for Dynamics GP. That makes the move away from GP a business planning decision, not just an IT task.
Most GP users already know they will need to migrate at some point. The real question is when. Many assume that waiting saves money. In practice, waiting often costs more, and the extra cost builds up quietly, year after year.
In this article, we explain where those hidden costs come from, and why moving earlier is often the smarter financial choice.
What Is Microsoft Dynamics GP?
Microsoft Dynamics GP, often called Great Plains, is an ERP system built for small and mid-sized businesses. Microsoft has offered it since the early 2000s, and thousands of companies still use it to run their finances and operations.
GP covers the core areas most businesses need: general ledger, payables, receivables, cash management, fixed assets, inventory, manufacturing and project accounting.
It was designed for a traditional IT setup. Most businesses run GP on their own servers or on a hosted virtual machine, with SQL Server databases behind it. It was usually sold on a perpetual license, with customers paying a yearly Enhancement or Advantage plan for updates and support.
That design worked well for many years. But it also means GP needs servers, database care, regular upgrades and IT support, and each of these has a cost.
Dynamics GP Roadmap and Support Timeline
Microsoft has confirmed a step-by-step retirement for GP. The key dates are:
- April 1, 2025: New perpetual license sales ended
- April 1, 2026: New subscription license sales ended
- December 31, 2029: Product updates, tax and regulatory updates, service packs and technical support end
- April 30, 2031: Security updates stop, and GP reaches official end of life
After 2029, GP gets no new features, no tax updates and no help from Microsoft. After April 2031, even security patches stop, and subscription use ends.
These dates are fixed. They set a clear limit on how long GP can be used safely, and they shape every cost discussed in this article. For more detail, read our guide on Dynamics GP end of support.
Plan Your Dynamics GP Migration
The support dates are fixed, but your migration timeline is still yours to choose. A short planning session with our team can confirm your key dates, risks and the best path to Business Central. Talk to our experts.
What Is the Economic Impact of Staying on Dynamics GP?
The economic impact of staying on GP is the total financial effect of keeping it running. It has two parts.
Direct costs appear in your budget: maintenance plan fees, servers, SQL and Windows licenses, IT staff time and upgrade projects.
Opportunity costs are harder to see, but just as real: shrinking Microsoft incentives, fewer available migration partners as the deadline approaches, and the time savings you miss without automation and AI.
On their own, each cost may look small. Together, they add up, and they grow every year you wait.
Microsoft Licensing Changes Are Increasing the Cost of Staying on Dynamics GP
As Microsoft Dynamics GP (Great Plains) approaches end of life, two licensing trends are moving in the wrong direction for businesses that wait. Migration discounts are falling, while GP maintenance fees are rising. The gap between moving now and moving later gets wider each year.
Microsoft Incentives for Dynamics GP Migration Are Shrinking
Microsoft has offered discounts to encourage GP users to move to Business Central. But these discounts have become smaller over time. Industry reports show transition discounts of around 60% in 2021, which later dropped to 40%, and the current Bridge to the Cloud 3 offer is around 30%.
Microsoft does not promise what future offers will look like, but the pattern is clear: incentives have been getting smaller, not bigger.
Since license costs are a large part of any migration budget, smaller discounts mean a higher net cost. GP does not become more expensive overnight, but the chance to move at a lower price slowly disappears.
Rising GP Enhancement and Advantage Plan Costs
To stay supported, most GP users pay for an Enhancement or Advantage plan each year. These plans are priced as a percentage of your license value, and that percentage has gone up every year since 2021.
Industry figures show the Enhancement plan rising from around 16% of license value in 2021 to around 20% in 2026, and the Advantage plan from about 18% to 22%. That is roughly a one-point increase every year, or about a 25% rise in maintenance cost over five years.
So businesses are paying more each year for a product that has a fixed end date. For finance leaders, this raises an important question: how long does it make sense to keep increasing spend on a system that is being retired?
The Total Cost of Ownership of Dynamics GP
Total cost of ownership (TCO) looks beyond the license price. It includes everything you spend to run, maintain, upgrade and eventually replace a system.
When businesses add up GP’s full TCO, the numbers are often higher than expected:
- Maintenance plans: These yearly fees keep rising, even as GP nears retirement.
- Servers: Hardware must be maintained, monitored and replaced every few years.
- Supporting software: SQL Server and Windows Server licenses add extra cost.
- IT labor: Someone has to manage patches, backups, performance and security.
- Upgrade projects: Each GP upgrade needs planning, testing and consultant time.
- Manual work: Limited automation means more time spent on routine tasks.
- Final replacement: GP must be replaced eventually, so that cost is coming either way.
With Dynamics 365 Business Central, Microsoft handles servers, updates and security within one subscription. Over a few years, many businesses find their total cost is lower and much easier to predict.
Opportunity Costs of Delaying Dynamics GP Migration
Even if GP’s costs stayed flat, which they do not, waiting would still cost you. Microsoft’s investment, new features and AI are all going into Business Central. Every year on GP is another year without those gains.
Delayed Automation and Workflow Efficiency
Business Central includes built-in automation that GP cannot match without custom work or third-party tools. This includes:
- Approval workflows for purchasing, sales and finance
- Connection with Power Automate for processes across systems
- Automatic document routing and notifications
- Fewer spreadsheets and email chains
Without these, your team keeps doing tasks by hand that could run on their own. That means higher labor costs and slower processes.
Missed AI and Copilot-Driven Productivity Gains
GP has no built-in AI. Business Central includes Copilot and AI agents that help with sales order entry, invoice matching, bank reconciliation, forecasting and reporting in plain language.
These tools reduce manual effort and improve accuracy. Research from organizations such as McKinsey has linked AI adoption with real productivity gains. Each year on GP delays those benefits for your team.
Integration Gap with Microsoft 365 and Power Platform
Business Central is built to work with the Microsoft tools your team already uses:
- Teams for discussing records without leaving the conversation
- Outlook for seeing customer and vendor data inside your email
- Excel for live analysis without manual exports
- Power BI for dashboards and management reports
- Power Platform for low-code apps and automation
GP can connect to some of these, but usually only with customizations or add-ons. The longer you wait, the wider this gap becomes, especially as competitors move to connected cloud systems.
Dynamics GP Migration Bottleneck Problem
Many businesses plan to start their migration in 2028 or 2029. On paper, that sounds reasonable. In practice, it creates a serious risk.
Thousands of businesses still run GP, but only a limited number of partners have deep experience moving GP customers to Business Central. Each partner can only handle a certain number of projects at once.
If most GP users wait until the final years, demand will far exceed capacity. This leads to two predictable results:
- Higher prices, because experienced consultants become scarce
- Longer waiting times, because partners are booked months ahead
Complex or heavily customized GP systems will feel this most, since they need more time and specialist skills. Starting early is not just a technology choice. It protects you from price increases, scheduling delays and rushed projects.
Economic Impact of Migrating Off Dynamics GP
Migration is not only about avoiding risk. It also brings measurable returns.
A Forrester Total Economic Impact™ study of Business Central, commissioned by Microsoft in 2023, reported strong returns for organizations that moved, including productivity gains and annual cost savings. These studies use modeled examples rather than guaranteed results, but they show the scale of benefit that is possible.
The logic is simple: if migration brings savings and better productivity, every year you delay is a year without those benefits. Our Dynamics GP to Business Central migration service is designed to help you start capturing that value sooner.
Financial Comparison: Migrate Now vs Migrate Later
For most businesses, the question is not whether to migrate, but when. Here is how the two choices compare:
| Factor | Stay on Dynamics GP | Migrate to Business Central Earlier |
|---|---|---|
| Maintenance costs | Plan fees keep rising each year | Predictable subscription pricing |
| Infrastructure | Ongoing servers, refreshes and licenses | Managed by Microsoft |
| Incentives | Smaller discounts over time | Use current incentives while available |
| Partner availability | More competition for limited capacity | Better choice of timing and resources |
| Automation and AI | Manual processes continue | Gains start sooner |
| Financial return | Benefits delayed | Return on investment starts earlier |
Waiting does not save money. It moves money into maintenance, infrastructure and missed opportunities, and it delays the benefits of a modern system.
Example: The Cost of Waiting
Let us look at a simple, illustrative example. Imagine a business with 25 GP users deciding whether to migrate now or wait three years. Assume the migration project itself costs the same either way. Only the timing changes.
By waiting three years, the business would:
- Keep paying rising costs: three more years of maintenance plan fees, server upkeep and IT support
- Lose part of the incentive: if migration discounts keep falling, the license saving gets smaller
- Face higher project pricing: more competition for partners near the deadline can push costs up
- Miss three years of gains: no automation, AI or time savings during that period
Each item may seem manageable on its own. Together, they can add up to a large sum, often far more than businesses expect. The exact figure depends on your license value, infrastructure and team size, so we calculate it for each business individually.
For your own estimate, our Business Central consultants can compare the cost of staying on GP with the cost of moving.
Strategic Recommendation: Why Earlier Migration Reduces Risk and Cost
GP’s deadlines are fixed. Meanwhile, migration incentives are falling, maintenance fees are rising, and partner capacity is limited. Together, these create a real timing risk.
Summarizing the key point: waiting does not reduce cost, it adds to it. The economic impact of GP is not only what you pay to stay, but also what you miss by waiting.
At Nevas Technologies, we help GP users assess their current setup, estimate the true cost of staying, and plan a smooth move to Business Central. You can also review our Business Central implementation plans to understand scope and pricing.
Ready to find out what waiting is costing you? Contact Nevas Technologies today for a GP assessment and migration plan.
