ACC Levies for Doctors: What You Are Probably Overpaying
ACC levy misclassification is surprisingly common among medical professionals in New Zealand. Here is how the levy system works, why doctors are particularly exposed, and what a review can do.
ACC levies are one of those costs that most self-employed professionals pay without questioning. The invoice arrives, you pay it, and you move on.
For doctors and medical professionals, that approach can be expensive. ACC levy misclassification is common in the medical sector — and the difference between the right classification and the wrong one can run to several thousand dollars per year.
Here's how the system works, why doctors are particularly exposed, and what a review involves.
How ACC levies work for self-employed doctors
If you're self-employed — whether as a sole trader or through a company — you pay two types of ACC levies:
Work levy: Based on your occupation classification code (the risk of injury in your type of work). Different medical roles attract different rates.
Working safer levy: A flat levy that applies to all self-employed people.
The total levy is calculated as a percentage of your liable earnings (your self-employed income, up to the maximum liable earnings threshold, which is currently $142,283 per year).
For employed doctors, ACC levies are handled differently — your employer pays the work levy, and you pay the earner levy through PAYE.
Why misclassification happens
ACC assigns classification codes based on the nature of your work. The problem is that the system relies on self-reporting and IRD data — and it doesn't always get it right.
Common reasons doctors end up on the wrong classification:
Broad occupational categories. ACC's classification system groups occupations broadly. A GP and a surgeon may be in different categories, but both may be grouped with other health professionals who have very different risk profiles.
Changes in work type. If you've moved from clinical work to a more administrative or advisory role, your classification may not have been updated.
Locum vs employed. Locum doctors who are self-employed are classified differently from employed doctors. If your status has changed, your classification may not reflect it.
Company structure. How you're structured affects how ACC calculates your levies. Shareholder-employees in a company are treated differently from sole traders, and the levy is calculated on the shareholder salary rather than total company profit.
What a review involves
An ACC levy review looks at three things:
1. Whether your classification code is correct. We check your current code against your actual work type and identify whether there are grounds to challenge it.
2. Whether your liable earnings are calculated correctly. For company shareholders, the levy is based on the shareholder salary — not the company's total income. If this hasn't been set up correctly, you may be paying levies on a higher income than you need to.
3. Whether you're eligible for a lower-risk classification. Some medical professionals qualify for a lower classification based on the nature of their work. This isn't always obvious from the standard ACC categories.
What the savings look like
The savings from a successful review depend on your income, your current classification, and what you're eligible for.
As a rough guide: if you're earning $150,000 or more from self-employment and your classification is incorrect, the annual saving from a review can be meaningful — often in the range of $1,000 to $5,000 per year, depending on the rate difference.
That's a recurring saving, not a one-off. Over five or ten years, it adds up.
Is it worth doing?
If you've never had your ACC levy classification reviewed, and you're self-employed as a doctor or medical professional, the answer is almost certainly yes.
The review itself takes a few hours of our time and yours. If there's nothing to change, you've confirmed you're on the right classification. If there is something to change, the saving typically far outweighs the cost of the review.
Find out if your ACC levy classification is correct — book a free initial consultation. We work with medical professionals across New Zealand and can usually give you a clear picture of your position within a single conversation.
Explore Topics
Written by
Peter Eastmure
Peter Eastmure is a Christchurch-based accountant and director of Eastmure & Associates. He advises small businesses, medical professionals, and property investors across Canterbury on tax, compliance, and business strategy.
