This article explains how the Inn-Flow Calculation Engine computes blended overtime (also called weighted-average overtime) to ensure full compliance with the Fair Labor Standards Act (FLSA). This applies to any employee who works more than one pay rate, position, or hotel within the same payroll group/FEIN during a workweek. Note: If an employee works at multiple properties with different FEINs they are tracked independently.

Note: This only affects client with the new Labor Calculation Engine enabled. Please reach out to your Implementation Manager or CSM for more information on enablement. 

TABLE OF CONTENTS

• How Blended Overtime Works
• Primary Position & Weekly Hours Determination
• Examples
• Calculation Details
• Time Zone & Workweek Alignment
• Summary

Overview

Under FLSA, when an employee works at more than one pay rate during a workweek, overtime must be calculated using a blended (weighted average) regular rate. Inn-Flow automatically performs this calculation at the FEIN payroll-group level. 

This ensures that:

1. All hours worked at all positions within the same payroll group/FEIN are combined

2. Blended OT is triggered at the correct weekly threshold

3. Overtime is paid consistently and compliantly, even when employees work at multiple properties

For Labor & Payroll Customers prior to Jan. 2026, this functionality replaces HID‑based grouping and now relies on FEIN groupings.

How Blended Overtime Works

1. The Blended Regular Rate

When an employee works two or more distinct rates in a single workweek, the blended rate is calculated as:

Blended Regular Rate = Total Straight‑Time Earnings ÷ Total Hours Worked

1. Rounded to 2 decimals using banker’s rounding

2. Recomputed whenever historical entries change (unless payroll has already been processed)

Overtime Rate = Blended Regular Rate × 1.5

2. When the Overtime Threshold Is Reached

Most hotels follow the FLSA default of 40 hours per workweek, but the threshold honors the entity‑defined workweek start.

If an employee crosses the threshold mid‑shift:

1. Hours up to the threshold are paid as straight‑time

2. Hours beyond the threshold in that same shift are paid as overtime at the blended OT rate

3. Locking the Blended Rate

Once the employee crosses the threshold and the blended rate is computed:

1. The rate applies to all subsequent overtime hours for that workweek

2. It persists unless earlier records are edited, in which case the week is recalculated (subject to payroll lock)

4. Multi‑Property & Multi‑Position

The blended rate calculation includes:

1. All hours and earnings across all positions

2. All hours and earnings across all hotels with the same FEIN

The calculation does not combine:

1. Hotels with different FEINs

5. Standard, Overtime, and PPR Treatment

1. Regular hours accumulate until the threshold is reached

2. Overtime hours are stored in their own OT rows by position

3. PPR hours (rooms cleaned) do not count toward overtime eligibility

Primary Position & Weekly Hours Determination

If an employee belongs to multiple properties/positions, Inn-Flow determines their standard weekly hour requirement using:

1. The primary position if one exists

2. If no primary is defined, the oldest active entity‑wide setting

This ensures consistent thresholding for employees shared across locations.

Examples

Example A: Multi‑Rate Blended Overtime

1. 20h at $12/hr

2. 25h at $15/hr

Straight‑time earnings = $240 + $375 = $615

Total hours = 45h

    Blended Regular Rate: $615 ÷ 45 = $13.67

    OT Rate: $13.67 × 1.5 = $20.51

1. Regular: 40h paid at straight‑time per position

2. Overtime: 5h paid at $20.51

Example B: Mid‑Shift Threshold

1. Employee has 37.0 hours

2. Works an 8‑hour shift

Breakdown:

1. First 3.0 hours → straight‑time

2. Remaining 5.0 hours → overtime at blended OT rate

Calculation Details

The Inn-Flow Calculation Engine computes blended overtime in two layers:

Regular Layer

1. Each day’s hours go into daily regular rows by position

2. PPR rows do not count toward overtime

3. Thresholding occurs at the FEIN group level

Overtime Layer

1. Any hours above the threshold are placed into OT rows under the position worked

2. The OT rate is locked when the threshold is crossed

3. If prior entries change, the engine recalculates the entire affected week (unless locked)

PPR Logic

1. PPR rows are inserted/updated based on rooms cleaned per service level

2. PPR hours never count toward overtime qualification

Time Zone & Workweek Alignment

All blended OT logic honors:

1. The local time zone of the hotel

2. The entity‑configured workweek start (e.g., Monday 12:00 AM)

Daily and weekly boundaries are computed using these exact configurations.

Summary

This logic fully aligns with FLSA requirements for blended overtime:

1. Weekly OT after 40 hours (unless entity uses a different FLSA‑compliant threshold)

2. Overtime at 1.5 × blended regular rate

3. Multi‑position, multi‑rate compliant treatment

State‑specific rules such as California daily overtime, Colorado daily overtime, or double‑time rules also part of the Inn-Flow Labor and Payroll products. 

If you have questions, please reach out to Inn-Flow Support.