Of all the HUBZone requirements, the 35 percent employee rule causes the most confusion, and it is also the one most likely to change between application and recertification. In simple terms, at least 35 percent of a HUBZone-certified firm’s employees must live in a HUBZone. The rule exists for a clear reason: the program is meant to bring jobs and economic activity to historically underutilized business zones, so a firm that merely rents an office in a HUBZone while its workforce lives elsewhere does not meet the spirit, or the letter, of the program.
This guide explains the rule in plain language: who counts as an employee, how the percentage is calculated, which address matters for each person, and how to keep the percentage above the line as your team changes. It is general guidance, not legal advice, and the SBA’s current rules and definitions govern in any borderline case. Read it alongside the broader guide to HUBZone certification requirements, which covers the office, ownership, and size tests that sit next to this one.
What the Rule Actually Says
The rule is a percentage, not a fixed number of people. Divide the number of employees who live in a HUBZone by the total number of employees, and the result must be at least 35 percent. A firm with 20 employees therefore needs at least 7 HUBZone residents, since 7 divided by 20 is exactly 35 percent. A firm with 10 employees needs at least 4, because 3 out of 10 is only 30 percent, and the next whole person brings the figure to 40 percent. In practice, whenever the math gives a fraction, round up: you cannot employ a fraction of a person, and rounding down would leave you below the threshold.
Who Counts as an Employee
Getting the headcount right matters as much as getting the addresses right. Generally, the count is based on the firm’s employees under the SBA’s definition for the HUBZone program, which looks at who actually works for the firm rather than who appears on an organizational chart.
Full-time and part-time employees both feature in the picture, but the way part-time, temporary, seasonal, and .leased workers are treated can depend on the current rules and on the facts of the arrangement, such as hours worked and who controls the work. Do not assume that owners, officers, or contractors are automatically counted or automatically excluded: check the current SBA definition before you build your list, and be consistent in how you apply it.
Which Address Counts: Home, Not Work
For the 35 percent rule, what matters is where each employee lives, not where they work. An employee who works in your HUBZone office but lives outside a HUBZone does not count toward the percentage. Conversely, an employee who works remotely or at a client site can count if their home address is in a HUBZone, provided they are properly counted as an employee under the current rules. That distinction surprises many firms, and it is why a separate address check for every employee is essential. The step-by-step method is covered in the guide to how to check if your address is in a HUBZone: use the official SBA map, enter the exact home address, and keep a dated record of the result.
A Worked Example
Imagine a firm with 14 employees. Thirty-five percent of 14 is 4.9, so the firm needs at least 5 HUBZone residents. If it has 5, it sits at about 35.7 percent and passes. Now suppose it hires two more employees who live outside a HUBZone, taking the total to 16, while the HUBZone resident count stays at 5. Five divided by 16 is only 31.25 percent, so the firm has fallen below the line without losing a single HUBZone resident. This is the trap that catches growing firms: every hire outside a HUBZone dilutes the percentage, and every departure of a HUBZone resident does the same. Run the calculation before each hire, not after.
Common Mistakes That Break the Calculation
The most common error is counting the office address instead of home addresses, which can make a firm look compliant when it is not. The next is using an old map result: HUBZone designations change, so an employee who counted last year may not count this year if their neighborhood lost its designation, and a new hire who looks like a miss on an old map may actually qualify on the current one. A third error is using payroll headcount without checking the SBA definition, for example by including short-term contractors who should not be in the count, or leaving out part-time staff who should be. A fourth is forgetting moves: when an employee moves, even across town, their HUBZone status can change, and the firm’s percentage changes with it.
How to Keep the Percentage Above the Line
Treat the percentage as a living number, not a one-time application figure. Keep a private roster that lists each employee, their home address check date, and the map result, and update it whenever someone joins, leaves, or moves. Recalculate before every hire, and if a hire would push you below 35 percent, plan the next HUBZone hire first or accept that the hire must wait. Recruiting in HUBZone communities is not just good compliance practice; it is the point of the program, and firms that build relationships with local workforce organizations often find it easier to stay above the line. Aim for a buffer above 35 percent rather than sitting exactly on it, because one departure or one designation change can otherwise tip you under.
What to Document
When the SBA reviews a HUBZone file, it will want evidence, not just a percentage on a form. Keep payroll records that support your headcount, dated map results for each employee counted as a HUBZone resident, and a short note explaining any judgment calls, such as how a part-time or seasonal worker was treated under the current definition. Store home addresses securely and share them only as needed for the application or review, since they are private information. A clean, dated file makes an application smoother and makes recertification far less stressful, because you can show your working rather than reconstruct it from memory.
Final Checklist
Before you certify, run through this list: count every employee under the current SBA definition; verify each HUBZone resident’s home address on the current official map; divide and round up; check that the result is at least 35 percent; and confirm that your principal office and ownership still meet the other HUBZone tests. If the percentage cannot be maintained, address it before you apply or recertify, whether that means hiring in a HUBZone, pausing non-HUBZone hiring, or considering other SBA certification programs while you build a qualifying workforce. The 35 percent rule rewards firms that genuinely employ people from HUBZone communities, and a firm that manages it deliberately will rarely be caught out by it.
35 Percent Employee Rule: Recheck It at Every Change
The 35 percent employee rule is not a one-time check. Every hire, departure, and address change can move your percentage, so recalculate the 35 percent employee rule after every change to your team. A firm that reviews the 35 percent employee rule every month rarely falls below the line. Keep a simple record of who counts, where each person lives, and the date you checked, so the 35 percent employee rule never surprises you at recertification.
Confirm that your team still meets the 35 percent employee rule on the SBA HUBZone page, and check your office address against the map with our guide on HUBZone certification requirements.
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