FTE (Full-Time Equivalent) Calculator
Calculate FTE count from employee hours. Check ACA applicable large employer status (50+ FTEs).
By Konstantin Iakovlev · Updated April 2026 · Source: SBA — Business Guide
Total FTE
2.5
Headcount
3
ACA Applicable
No
FTE Summary
| Total Weekly Hours | 100 |
| Full-Time Equivalent (FTE) | 2.5 |
| Full-Time Employees (40+ hrs) | 2 |
| Part-Time Employees (< 40 hrs) | 1 |
| Total Headcount | 3 |
ACA Employer Mandate
With 2.5 FTEs, your company is below the 50-FTE ACA threshold by 47.5 FTEs. You are not subject to the employer mandate.
Use the FTE (Full-Time Equivalent) Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
How It Works
Headcount and workforce size are not the same number, and the gap matters most under the Affordable Care Act. Converting employee hours into Full-Time Equivalents gives you the figure that determines Applicable Large Employer (ALE) status: cross 50 FTEs in 2026 and you become subject to health coverage mandates and the penalties that follow a misstep. An accurate FTE count is what stands between confident staffing plans and an expensive compliance surprise.
To build the total, start by counting your full-time employees and the hours they work, then fold in part-timers on an equivalent basis. For each part-time worker, divide their monthly hours by 120, the ACA's defined threshold for a full-time month. Add those fractional equivalents together and combine them with your full-time count to reach the overall FTE figure.
Two errors trip up employers most often. The first is tallying only full-time staff and writing off part-time hours as too small to matter; in aggregate they routinely move the needle. The second is forgetting seasonal workers, whose hours count during the months they are employed and can quietly carry you past the ALE line. Applying a consistent measurement period, such as 12 consecutive months, keeps the count honest and defensible for ACA purposes.
Example: Q1 2026 FTE Calculation for a Small Business
- 1 Input: For Q1 2026, a business has 35 full-time employees (each working 160 hours/month). Additionally, there are 20 part-time employees who each worked an average of 80 hours/month during Q1 2026.
- 2 Calculation: Full-time employees = 35 FTEs. Part-time employee hours = 20 employees * 80 hours/month = 1600 hours/month. Part-time FTEs = 1600 hours/month / 120 hours/month (ACA full-time threshold) = 13.33 FTEs.
- 3 Intermediate Result: Total FTEs = 35 (full-time) + 13.33 (part-time) = 48.33 FTEs.
- 4 Final Result: The business has 48.33 FTEs for Q1 2026. Based on this, the business is not an Applicable Large Employer for 2026, as its FTE count is below the 50-FTE threshold, and therefore, it avoids ACA employer mandate penalties for this period.
Source: SBA — Business Guide · Last updated: April 2026
Frequently Asked Questions
How do you calculate FTE?
Why does FTE matter for ACA compliance?
Does FTE include part-time employees?
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