The SBI code: classifying your business activity
What is an SBI code and why does it matter? Learn how to choose the right one at KVK registration and why insurers and banks rely on it.
When you register at the KVK, you'll choose an SBI code—a five-digit number that describes what your business does. It looks like a small detail, but that code flows to insurers assessing your risk, banks evaluating your creditworthiness, and government bodies determining which subsidies you can access. Getting it right from the start saves friction later.
What is an SBI code?
An SBI code (Standaard Bedrijfsindeling) is the Dutch standard business classification. It's a five-digit code—split into two groups like 62.01.09 or 74.10.11—that categorizes your main business activity.
The first three digits cover your broad sector (e.g., 62 = IT services, 74 = professional services). The last two narrow it down to your specific role (e.g., web development within IT, or graphic design within professional services).
SBI codes essentials
The KVK maintains a registry of thousands of SBI codes. You'll search by keyword during registration to find the one that fits your work.
Why your SBI code matters
Insurers and insurance premiums
When you apply for professional indemnity insurance (BAV), general liability (AVB), or disability cover (AOV), insurers pull your SBI code to assess your risk profile. A software developer has different hazards than a plumber; the code signals which profession you are.
Underwriters price premiums based on typical risk for that code. If your code misrepresents your actual work—say, you register as "general business services" when you're actually a surgeon—the insurer may discover the mismatch, reject your application, or void your policy later if you make a claim.
Banks and lending
Banks use your SBI code to benchmark your business against industry standards. When you apply for a loan, they assess your creditworthiness by comparing your metrics (profit, debt, growth) against businesses with the same SBI code. A misclassified code means the bank's model can't compare you fairly, which affects interest rates and approval odds.
Government subsidies and support
The Dutch government regularly launches sector-specific support: energy-efficiency grants for certain trades, digital transformation funds for specific industries, or crisis relief for affected sectors. Eligibility often hinges on your SBI code. Misclassify yourself, and you miss opportunities you actually qualified for.
Tax treatment
While your SBI code doesn't directly determine your income tax rate, certain sectors qualify for special deductions or allowances. For example, some R&D activities have preferential rules. Misclassification can mean missing out on benefits your actual work entitled you to.
You can register multiple SBI codes
If your business genuinely spans two distinct activities—e.g., web design and copywriting—you can register up to five SBI codes at the KVK. One is your primary (the one you spend most time on or that generates most revenue). Be honest: insurers and lenders will verify your primary code, and misrepresenting it to get cheaper premiums can void coverage.
Choosing the right SBI code
The rule is simple: your SBI code should honestly describe what you actually do.
Start with the official KVK SBI search tool. Enter a keyword for your activity and review the results. Each code comes with a description. Pick the one that best matches your day-to-day work.
Examples:
- Web development:
62.01.09(Software programming services) - Graphic design:
74.10.11(Specialised design activities) - Business consulting:
70.22.01(Management and business consultancy) - Bookkeeping:
69.20.13(Bookkeeping services) - Coaching:
85.59.03(Other education and training activities)
If you do multiple things at significant scale, list them all—but order them honestly. Your primary SBI should be the one consuming most of your time or generating most revenue.
Don't pick a code for appearance or subsidy eligibility
It's tempting to choose a code that sounds more prestigious or that qualifies for a subsidy you like. Resist. If an insurer discovers you misclassified yourself to get cheaper premiums, they may deny claims entirely. If the tax office finds you claimed a subsidy you weren't eligible for, you'll repay it plus penalties.
Finding your SBI code at KVK registration
When you register at the KVK, the SBI code is one of several decisions you'll make. Book your appointment, bring ID and proof of address, pay around €80, and when asked "What is your business activity?" — you'll have your code ready from the search tool.
If you're unsure between two codes, ask the KVK staff in person. They're accustomed to the question and can clarify the difference.
Let ZZP Belasting do the maths
Automatic BTW returns, income-tax forecasts and depreciation — from the invoices you already have.
Try it freeChanging or adding an SBI code
Your business evolves. Maybe you added a new service line, pivoted focus, or realized your original code was a poor fit. You can update it anytime:
- Log into your KVK account online or visit your local KVK office
- Request to add or change an SBI code
- The change typically takes effect within days
- Notify your accountant, insurer, and bank so they update their records
Cost: Usually free. Some changes incur a small administrative fee; the KVK will advise.
Belastingdienst: The tax office receives the update automatically from the KVK within a few days. No separate notification needed, but it's good practice to inform your accountant.
There is no penalty for updating your code honestly. The worst mistake is keeping a wrong code just to avoid a phone call.
Frequently asked questions
What if my business doesn't fit neatly into any code?
Can I register a business without an SBI code?
If I change my SBI code, do I need to tell the tax office separately?
Does my SBI code affect my personal income tax rate?
Your SBI code is a quiet but important piece of your business profile. Spend five minutes finding the right one at registration, and keep it accurate as your business evolves. It protects you from insurance mispricing, helps you access subsidies you qualify for, and keeps auditors off your back.
Starting your freelance business? Read the KVK registration guide for the step-by-step on choosing your SBI and completing the process. Once registered, you'll get your BTW number, set up basic bookkeeping, and review which insurances you need. For the complete picture, see the freelancer startup checklist. ZZP Belasting keeps your business details accurate and ensures your records are audit-proof from day one.