Modernize GP Payroll
The smartest first move off GP? Payroll.
You don't need a full ERP migration to solve what's most urgent. Greenshades modernizes payroll now, with bi-directional GP sync that keeps your GL and finance workflows intact, so the bigger ERP decision stays on your timeline, not Microsoft's.
GP stays for accounting
Keep your finance team on GP. Only payroll moves — with GL postings and employee data syncing both ways.
Compliance stays current
Automatic tax updates across federal, state, and local — no more manual year-end patches or GP dependency.
ERP decision stays yours
Greenshades is ERP-agnostic. It works with GP today, Business Central tomorrow, or whatever you choose next.
Trusted by teams across the U.S.
20+ yrsIn the Dynamics GP ecosystem
4,000+Companies trust Greenshades
MillionsOf employees paid
All 50States supported for payroll tax
Your Window
Your version has a deadline. Here's the full picture.
Microsoft confirmed the timeline. Here's where things stand.
Already Ended
GP 2015 & earlier
Extended support ended April 2025 or earlier. These versions are unsupported.
July 14, 2026
GP 2016 / 2016 R2
Extended support ends mid-2026. No more security updates after this date.
January 11, 2028
GP 2018 / 2018 R2
Extended support ends early 2028. Installing tax updates moves you to Modern Lifecycle (v18.5+).
December 31, 2029
GP 18.x — Payroll tax, regulatory updates & support end
The critical date for Modern Lifecycle users. No more year-end tax tables, W-2/1099 updates, or Microsoft support.
April 30, 2031
Security patches end
Microsoft may issue critical fixes through this date — at their discretion. After this, GP is a frozen codebase.
Mid-market ERP migrations typically take 6–18 months. The earlier you decouple payroll, the more room you have.
How Payroll-First Works
Three steps. Zero disruption.
1
Keep GP for Accounting
Your finance team keeps working in GP. Nothing changes on that side. Business as usual.
2
Move Payroll to Greenshades
Payroll, tax, compliance, and employee access modernize with a dedicated specialist guiding you through go-live.
3
Decide ERP on Your Timeline
Business Central, another ERP, or stay hybrid. Greenshades works with all of them. No lock-in.
Don't Take Our Word for It
Research the payroll-first approach with AI
Pick your preferred AI assistant and see what it recommends for a GP payroll migration.
What Makes Greenshades Different
Payroll you actually control.
Built for how payroll actually works
Payroll is rarely straightforward. Off-cycle runs, corrections, retroactive adjustments, multi-state tax rules, garnishments, shift differentials. Greenshades handles the complexity without creating more manual work.
Federal, state, and local tax compliance
Tax rules are changing constantly. Greenshades keeps payroll tax calculations current and aligned with federal, state, and local requirements so you're not chasing updates or second-guessing the numbers.
Implementation and support
Greenshades gives you access to a team that understands GP, along with tools and resources to get answers quickly. A named specialist guides you through setup, go-live, and your first payroll runs so you're not figuring it out on your own.
From the GP Community
Agape of Appleton cut payroll processing time by 75%.
Greenshades has been a trusted partner for Agape of Appleton since the early 2000s. We've significantly streamlined our payroll and HR processes, reducing manual paperwork, and making the platform accessible even for our non-tech-savvy staff.
Gia Mathos Lamm
Chief Financial Officer, Agape of Appleton
See the payroll-first path
Book a 30-minute call with a Greenshades payroll specialist who knows the GP world. We'll look at your version, your timeline, and map out what a payroll-first move would look like for your specific setup.
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30-minute callWith someone who knows GP payroll inside out
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Specific to your setupYour GP version, your entities, your complexity
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Zero commitmentWalk away with a clear picture of your options
We respect your privacy and follow robust data protection practices. We use your information to respond to your request, tailor your experience, and share insights.
The Landscape
The data behind payroll-first.
60–80%
Of IT budgets consumed by legacy system maintenance¹
$7B+
In IRS penalties paid annually for payroll tax errors²
70%
Of ERP projects fail to meet their objectives³
2029
GP payroll tax & regulatory updates end⁴
Payroll is the most time-sensitive, compliance-critical function on your ERP. It's also the easiest to decouple first.