Dynamics GP Payroll · End of support

Your GP payroll migration window is already closing.

Greenshades modernizes payroll and keeps you compliant with bi-directional GP sync, so the bigger ERP migration decision stays on your timeline, not Microsoft's.

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20 +
Years in Microsoft's ecosystem
4000 +
Companies served
Millions
Of employees paid

The payroll-first move

Keep GP for accounting. Move payroll to Greenshades.

Greenshades runs on top of Dynamics GP with bi-directional sync, so your GL stays current both ways. Modernize payroll now and make the ERP decision on your own timeline.

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Greenshades

Payroll · tax · compliance

Modernizes now
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Dynamics GP

General ledger · accounting

Stays in place

Timeline

Your version has a deadline. Here's the full picture.

  1. Support ended

    GP 2015 & earlier

    Extended support has already ended. These versions run today without Microsoft updates or fixes.

  2. July 14, 2026

    GP 2016 / 2016 R2

    Extended support ends July 14, 2026. After this date these versions stop receiving security updates.

  3. January 11, 2028

    GP 2018 / 2018 R2

    Any recent tax update moves GP 2018 to the Modern Lifecycle, so most shops are already on the 2029 timeline below.

  4. December 31, 2029

    Payroll tax & support end

    The date that matters for payroll. Year-end tax tables, W-2 and 1099 updates, regulatory patches, and technical support all end here.

  5. April 30, 2031

    Security patches end

    Microsoft may issue critical security fixes through this date at its discretion. After this, GP is a frozen codebase.

ceo-letter

December 31, 2029 is the date your payroll tax engine stops updating. Federal, state, and local tax tables freeze in place, and every pay run after that is a compliance risk.

Why you should start now

Here are the risks of waiting

2029 sounds far off, but a GP migrations typically take 12 to 18 months, so the time to start is now. Here's what waiting could cost you.

Ecosystem shift

The consultants who know your custom GP payroll setup are moving to Business Central work. The expertise you rely on gets scarcer and more expensive each year before 2029.

Maintenance creep

GP payroll carries real cost today: annual tax updates, partner support, and the workarounds your team has normalized. That spend climbs as fewer vendors invest in GP compatibility.

Compliance cliff

After December 2029, tax-table updates stop. Multi-state/jurisdiction payroll on stale tables exposes you to penalties, audit risk, and employee corrections that are expensive to unwind.

Implementation demand

Every GP customer faces the same deadline. Implementation capacity tightens through 2028. Teams that start now move with leverage and on their own schedule.

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
Read the full case study

Ready when you are

See the payroll-first path

Book a call with a Greenshades specialist who knows GP payroll. We'll look at your version, your entities, and your timeline, and map what a payroll-first move looks like for you.

Talk to a GP migration expert

Common questions

What GP teams want to know

No. Greenshades runs on top of Dynamics GP and keeps your general ledger in sync, so you modernize payroll while GP continues to handle accounting. The ERP decision stays on your timeline.

Greenshades connects directly to Dynamics GP and exchanges data both ways. Employee and pay data flow into Greenshades for payroll, tax, and compliance, and GL postings flow back to GP, so your finance team keeps working in GP with current numbers.

It depends on your payroll complexity and number of entities. A payroll-first move is faster than a full ERP migration because your financials stay in place. A Greenshades specialist who knows GP maps the timeline to your setup during onboarding.