Payroll Transition on Closing Day: Employee Pay in an Ontario Business Sale

A business sale almost never closes neatly on the last day of a pay period. That leaves someone to sort out mid-cycle wages, vacation pay, and source deductions — often with only days of notice before the next cheque is due. Payroll transition on closing day is one of those operational details that gets little attention during deal negotiations, yet it is exactly the kind of thing that upsets employees fast if it is handled badly.

How much actually needs to change depends heavily on deal structure. A share purchase barely disturbs payroll administration, because the employer never changes. An asset purchase can mean a genuinely new employer, a new payroll registration, and a clean line drawn through an employee's pay history on the closing date.

This article walks through what typically has to happen around closing day, and why the structure of your deal determines how much of it applies to you.

Why the Deal Structure Decides Almost Everything

In a share purchase, the corporation that employs the staff does not change — only its shareholders do. The same legal employer keeps running the same payroll account, under the same CRA registration, without interruption. Employees generally should not notice any difference in how or when they are paid.

In an asset purchase, the buyer is typically a different legal entity than the seller. Even where employees are offered continuing jobs on essentially the same terms, payroll administration often needs to be rebuilt: a new payroll program account, new payroll software or provider setup, and a decision about how the seller's and buyer's respective payroll records line up. A buyer in an asset deal has no automatic statutory obligation to hire any of the seller's employees — whether staff continue at all, and on what terms, is a matter the purchase agreement needs to address directly.

Before Closing: What the Seller Needs to Settle

The seller's payroll function usually needs to close out cleanly before handover, including:

• A final pay run covering wages actually earned up to the closing date
• Accrued but unused vacation pay
• Outstanding commissions, bonuses, or expense reimbursements owed as of closing
• Confirming the cut-off date with the payroll provider or in-house bookkeeper so nothing is paid twice — or missed
• In an asset deal, deciding whether any Record of Employment needs to be issued for employees not continuing with the buyer

None of this needs to be dramatic, but it needs a clear, written cut-off date that both parties' accountants and payroll administrators are working from.

Payroll Mechanics: Share Sale vs. Asset Sale

The Pay Period That Straddles Closing

Most sales do not close on a clean pay-period boundary, so the period containing the closing date needs to be handled deliberately rather than left to whichever payroll system runs first. In practice, this usually means:

1. Confirming which party is financially responsible for wages earned before versus after the closing date
2. Deciding whether the buyer's or seller's payroll system (or a bridging arrangement) will actually issue the next cheque
3. Making sure hourly and commissioned employees, whose pay is harder to prorate than a flat salary, are specifically addressed
4. Reflecting any accrued-but-unpaid wage obligations in the purchase price adjustment mechanics, where the agreement uses one

If the purchase agreement is silent on this, disputes tend to surface later — exactly the kind of post-closing disagreement a working-capital adjustment clause is meant to catch and resolve.

Source Deductions and Government Remittances

Employers in Ontario are required to withhold and remit source deductions — income tax, CPP, and EI — to the CRA on an ongoing basis. In a share sale, the same employer continues remitting under its existing account without a break. In an asset sale, the buyer generally needs its own payroll program account, and the seller remains responsible for remitting on wages it paid before closing.

Specific remittance schedules and thresholds are set by the CRA and can vary by employer size — always confirm the current requirements with your accountant or payroll provider rather than assuming last year's rules still apply.

Closing-Day Payroll Checklist

• [ ] Confirm the exact closing date and communicate it to both payroll teams
• [ ] Agree, in writing, who pays wages for the period straddling closing
• [ ] Finalize accrued vacation pay and any outstanding commissions or bonuses
• [ ] Confirm whether a new CRA payroll account is needed (asset deals)
• [ ] Decide how year-end tax slips will be split or issued
• [ ] Tell employees, before closing, when and how they will be paid going forward
• [ ] Loop in each side's accountant so nothing is remitted twice — or missed

Frequently asked questions