Payroll Migration Checklist: Steps for a Smooth Switch

Switching payroll providers involves a lot of moving pieces. Employee records need to transfer. Year-to-date totals need to match. Tax accounts, deductions and PTO balances all need attention.

The easiest way to manage the process is to know what you need before implementation begins.

This payroll migration checklist walks you through each stage. Use it to prepare your data, work with your new payroll partner and check the details before your first live payroll.

Want a copy to keep on hand? Download the Payroll Migration Checklist PDF and check off each step as you go.

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Before You Switch Payroll Providers

A successful payroll migration starts before any data moves.

First, decide when you want your new payroll system to go live. Then work backward with your new payroll partner to understand what needs to happen before that date.

Your Pre-Migration Checklist

Choose your target go-live date.
Pick the payroll you want to process in your new system. Confirm your implementation timeline.
Leave enough time for setup, data review, testing and corrections. Notify your current payroll provider.
Understand what they need from you and when access may change. Gather your payroll reports.
Save the reports and historical information needed for your transition. Identify your internal contacts.
Decide who will provide data, answer questions and approve payroll. Schedule a kickoff call with your new payroll partner.
Use this time to discuss your payroll setup, taxes and implementation needs.

At PayFWDs, the kickoff call is an important part of implementation. It establishes a connection between our team and the client. We also use it to understand the company's setup, payroll needs, taxes and other details before moving forward.

If you are still deciding when to make the move, read How to Switch Payroll Providers Mid-Year first.

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Gather Your Employee and Payroll Information

Your payroll migration is only as reliable as the information behind it.

According to the PayFWDs implementation team, the most important thing to have ready is a complete, validated payroll data set from your current system.

That means looking beyond your current employee list.

Historical payroll and tax information matters too. This includes records for terminated employees. PayFWDs sees businesses focus on current employees while overlooking historical information needed for implementation.

Employee Information Checklist

Employee names and demographic information Employee IDs, when applicable Current compensation and pay rates Employment status Banking and direct deposit details Federal, state and local tax information Employee tax forms Earnings and deduction information Garnishments, when applicable Benefit deductions PTO policies Current PTO balances Historical records for terminated employees

Do not assume information is accurate because it came from your existing payroll system. Review it before it becomes the starting point for your new payroll.

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Gather Your Payroll Reports and Historical Data

Current employee information tells only part of the story.

Your new payroll partner also needs information about payroll already processed. This becomes especially important when switching providers during the year.

Historical data for payroll and taxes is one of the most commonly forgotten items PayFWDs sees during implementation. That history may also include employees who no longer work for the company.

Payroll Data Checklist

Year-to-date gross wages Year-to-date employee taxes and withholdings Year-to-date employer taxes Year-to-date deductions Year-to-date benefit totals Payroll registers Payroll history PTO balances Tax filing information Historical payroll data for terminated employees

Keep copies of the original reports you use during migration. They will be useful when your team compares the old and new payroll systems.

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Prepare for Payroll Implementation

Once your data is gathered, implementation moves into setup and validation.

This is where your payroll partner begins configuring the new system around your actual payroll operation.

The goal is not simply to recreate your old system. It is to make sure the new setup reflects how your company needs to run payroll.

Payroll Implementation Checklist

Verify payroll tax accounts and IDs.
Confirm federal, state and local tax account information. Review your pay schedules.
Confirm pay frequencies, pay dates and payroll calendars. Confirm year-to-date payroll data.
Review earnings, deductions, taxes and other balances. Review earnings and deduction codes.
Make sure the new setup reflects your current payroll. Review PTO policies and balances.
Confirm both the policy setup and employee balances. Review benefit deductions and garnishments.
Make sure employee-level deductions are configured correctly. Confirm payroll funding information.
Review the accounts and information used to fund payroll. Discuss reporting requirements.
Include general ledger reporting requirements when applicable. Review company-specific payroll needs.
Discuss new locations, departments, policies or other changes.

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Verify Your Payroll Tax Setup

Payroll taxes deserve their own checkpoint.

Do not assume every tax account or responsibility automatically transfers when you change payroll providers.

Your new payroll partner needs complete tax information. That may include tax IDs, account information and historical payroll tax data.

Payroll Tax Checklist

Confirm your federal tax information Confirm state tax accounts Confirm applicable local tax accounts Provide tax identification numbers Review year-to-date tax balances Confirm employee tax withholding information Identify missing tax registrations Confirm who is responsible for completing registrations Confirm responsibilities for upcoming tax filings

The key is knowing who owns each task. Clear responsibilities can prevent a missing account or incomplete record from becoming a problem later.

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Before Your First Payroll

This is one of the most important stages of your payroll conversion.

Before employees are paid through the new system, your team should verify the information and calculations behind that payroll.

For PayFWDs, that includes completing a test payroll and reconciliation.

What Is a Test Payroll?

A test payroll compares results from your previous payroll setup with the new system.

The purpose is to identify differences before the first live payroll.

PayFWDs compares key payroll calculations and balances during this process. That gives the implementation team a chance to investigate discrepancies before employees are affected.

First Payroll Checklist

Run a test payroll and reconciliation. Compare gross pay.
Confirm employee gross pay aligns between payrolls. Compare taxes and withholdings.
Review tax calculations and employee withholding. Compare deductions.
Confirm benefits, garnishments and other deductions. Compare net pay.
Make sure the final employee pay matches as expected. Verify year-to-date balances.
Review wages, taxes, deductions and other carried balances. Confirm PTO balances.
Make sure employee balances and policies are correct. Verify direct deposit information.
Review banking and payment details. Confirm payroll funding information. Resolve unexplained differences before go-live.

This step should not be treated as a box to check.

It is a reconciliation.

The goal is to understand why payroll results differ and resolve problems before the new system becomes your live payroll.

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The One Step PayFWDs Would Never Skip

If there is one item to put at the top of every payroll migration checklist, it is the parallel payroll and reconciliation.

The PayFWDs implementation team uses this step to confirm the new payroll aligns with previously processed payrolls.

That means checking gross pay, taxes and withholdings, deductions, net pay and year-to-date balances.

“A complete test payroll and reconciliation helps ensure payroll is in alignment with previously processed payrolls. It gives us the opportunity to confirm the system is calculating the company correctly before the first live payroll.”

- Rachel Dieruf | Implementation Project Manager

That extra review can catch a small discrepancy before it becomes an employee payroll issue.

PayFWDs also uses guided onboarding and audit checkpoints before the first live pay date. That hands-on implementation model is part of its broader support approach.

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After Your First Payroll Goes Live

A successful first payroll does not mean the review is finished.

Take time to confirm what actually happened after payroll processing. Review employee payments, reports and tax information while the details are still fresh.

Post-Go-Live Checklist

Review your first payroll report Confirm employee payments Verify direct deposits and checks Review payroll taxes and withholdings Confirm deductions processed correctly Review PTO balances Save payroll reports and supporting documentation Address discrepancies with your payroll partner Confirm upcoming payroll and tax responsibilities Schedule a follow-up with your account analyst

Keep your migration records somewhere your payroll team can find them later. Historical reports can remain important long after implementation ends.

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Payroll Migration Checklist at a Glance

01

Before You Switch

Timeline, reports and responsibilities

02

Gather Information

Employee, payroll and historical data

03

Implementation

Taxes, schedules, deductions and PTO

04

Before First Payroll

Test payroll and reconciliation

05

After Go-Live

Payments, reports and follow-up

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Frequently Asked Questions

• Can I switch payroll providers mid-year?

  Yes. A payroll provider switch can happen during the year. The important part is accurately transferring and validating year-to-date payroll information.

• What payroll reports do I need when switching providers?

  The exact reports depend on your payroll setup. Expect to provide payroll history and year-to-date information for wages, taxes and deductions.

  Historical information for terminated employees may also be needed. Your new payroll partner should provide a specific list during implementation.

• How long does payroll migration take?

  There is no single timeline that applies to every business.

  Employee count, payroll complexity, tax setup and data quality can affect implementation. Your payroll partner should establish the timeline before migration begins.

• Should I run a test payroll before going live?

  Yes. PayFWDs uses a test payroll and reconciliation before the first live payroll.

  The process compares important calculations such as gross pay, taxes, deductions, net pay and year-to-date balances. Differences can then be reviewed before employees are affected.

Keep This Payroll Migration Checklist With You

Switching payroll providers does not need to feel like one massive project.

Break the migration into stages. Gather clean information first. Confirm responsibilities during implementation. Then test and reconcile payroll before going live.

Most importantly, do not treat the migration as a simple data transfer. The numbers behind that data need to be reviewed too.

Ready to make the switch? Talk to the PayFWDs team about your payroll needs.