Acting Pay: When Does It Start? The Qualifying Period Explained

Acting pay is one of the most common adjustments in federal payroll — and one of the most commonly miscalculated. If you temporarily perform the duties of a higher classification, you are entitled to be paid for that work. But how much, starting when, and at what step? The rules are precise. The mistakes are predictable.

This guide walks through the rules as written in the Programme Administration (PA) collective agreement and the Treasury Board Directive on Terms and Conditions of Employment. We cover the qualifying period (including the trap in Article 25.27.7), step placement, what happens to your overtime rate while acting, and how the Correctional Service Specific Duty Allowance interacts with acting assignments.

What Acting Pay Actually Is

When a federal employee is required to substantially perform the duties of a higher classification level on a temporary basis, they are paid at the rate of that higher level rather than their substantive rate. This is acting pay. It is not a promotion — your substantive position remains unchanged — but for the duration of the assignment, you are compensated as if you held the higher position.

There are two layers of rules:

• The Treasury Board Directive on Terms and Conditions of Employment sets the cross-government rules: how step placement works, when overtime is calculated at the acting rate, and so on. It applies to all classifications unless a collective agreement says otherwise.
• Your collective agreement sets the qualifying period — how long you have to act before acting pay kicks in. Most agreements say three consecutive working days. Some, like the PA agreement, have a special rule for variable schedules that catches a lot of people out.

The Qualifying Period — the 22.5-Hour Rule

For most PA employees on a standard schedule, you have to act for three consecutive working days before acting pay starts. Once you cross that threshold, you are paid at the acting rate retroactive to day one of the assignment.

But Article 25.27.7 of the PA agreement converts this rule for employees on variable hours of work. The text says the qualifying period “will be converted to hours.” This is where it gets confusing.

The qualifying threshold is 22.5 hours, for everyone, regardless of how many hours per day you actually work. This was confirmed by the PSPC Pay Centre and a 2007 Treasury Board Information Notice to Compensation Advisors. The math: 3 working days × 7.5 hours per CA-standard day = 22.5 hours.

It helps to think of acting pay under variable schedules as two separate calculations:

An employee on a 12-hour shift who acts for two shifts has worked 24 hours — past the 22.5-hour qualifying threshold. They are entitled to acting pay for all 24 hours, calculated at the acting daily rate. They do not need to wait for a third 12-hour shift before acting pay kicks in.

Step Placement — ‘Nearest That Gives Increase’

When you start acting in a higher classification, you are not automatically placed at step 1 of the new level. The Treasury Board Directive on Terms and Conditions of Employment (section 2.2.2.4) sets the rule: you go to the step in the higher classification that is closest to your substantive rate but gives at least some increase.

The increase does not have to be substantial. Even a small increment qualifies, as long as it is positive. This is sometimes called the “at least one penny” rule informally. The directive does not require that the increase be meaningful — only that it exists.

Overtime While Acting — Acting Rate, Not Substantive

If you work overtime during an acting assignment, your overtime is calculated at your acting rate, not your substantive rate. This is set by section 2.6.8.1 of the Directive on Terms and Conditions of Employment, which states that once the qualifying period is met, the employee is subject to the terms and conditions of the higher classification level.

The same principle applies to other rate-based premiums — standby, call-back, designated paid holiday premiums, and so on. They are calculated against your acting rate while the assignment is in effect.

The Biweekly Conversion Factor

To convert an annual acting rate to a biweekly rate (which is what shows up on your pay stub), divide by 26.088. This is the federal-government-wide conversion factor — not 26.0 and not 26.1.

The math: there are 52.176 weeks in a year (365.25 ÷ 7), and 5 working days per week, giving 260.88 working days per year. Two weeks of pay is therefore one twenty-six-point-zero-eight-eighth (1/26.088) of an annual salary. This factor appears in the definition of weekly rate of pay in PA Article 2.01.

CSSDA During Acting (CX Employees)

If you are a Correctional Officer (CX classification) and you act in a higher position, the Correctional Service Specific Duty Allowance — $2,140 per year, or $82.03 biweekly — does not automatically follow you. Per PA Article 62.03, the rule is conditional:

• If your substantive pay + CSSDA is greater than your acting pay, you keep the allowance. The combined total is more valuable than the acting rate alone.
• If your acting pay alone exceeds substantive + CSSDA, the allowance falls away during the acting assignment.
• During paid leave, the allowance is retained for up to 60 days (Art. 62.04).

In practice, for short acting assignments at one classification level up, substantive + CSSDA often beats the acting rate. For longer or higher-level assignments, it does not. The right answer depends on the specific numbers.

Anti-Pyramiding — What Doesn’t Stack

When you are acting and earning premiums (overtime, designated paid holiday premium, standby), anti-pyramiding rules limit how those premiums combine. The principle is straightforward: when two premiums apply to the same purpose, you get the higher one — you do not stack them.

The PA agreement (Art. 28.03) covers three premium types: overtime, holiday premium, and standby. The TC (Technical Services) agreement covers five: those three plus call-back and reporting pay. Same employee, same scenario, materially different outcome depending on which CA you fall under.

The base portion of holiday pay is exempt from anti-pyramiding — it is always paid. Only the premium portion (the 1.5× or 2× multiplier) is subject to the rule. This is one of the trickier interactions in federal pay, and it is exactly the kind of scenario ACCORD validates against the source CA text.

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