SD Worx Review 2026: Belgium's EOR & Payroll Specialist

SD Worx is a native Belgian Employer of Record (EOR), payroll, and HR services firm headquartered in Antwerp, Belgium. The company traces its roots to 1945, making it one of the oldest continuously operating payroll providers in Europe and giving it a corporate lineage that predates virtually every global EOR competitor by decades. SD Worx is owned by SD Worx Holding NV and has grown both organically and through targeted acquisitions across Europe to build one of the largest payroll and HR services platforms on the continent.

The most important thing to understand about SD Worx is its buyer profile. SD Worx exists primarily to serve mid-market and enterprise companies with substantial Belgian or European operations who need deep, native-language payroll and HR compliance execution. That specialisation makes it unusual in a market dominated by global remote-hire platforms, and it explains both its strengths (unmatched joint committee depth, native Belgian advisory, full sector coverage) and its limitations (less polished consumer-grade software, account-management-led engagement, no public per-employee pricing).

The company processes payroll for approximately 5 million employees per month across Europe, serves around 80,000 clients, and operates owned legal entities across more than 26 European countries. SD Worx employs over 8,000 people and generates more than €1 billion in annual revenue, making it one of the genuine European payroll heavyweights. In Belgium specifically, SD Worx covers all approximately 180 joint committees (paritair comités / commissions paritaires) with native expertise that no global EOR platform can replicate.

What strikes you immediately when engaging with SD Worx is that this is a native Belgian payroll firm wrapped in a service-led delivery model, not a global EOR platform with Belgian capabilities bolted on. Where Deel and Remote lead with self-service dashboards and instant onboarding flows, SD Worx leads with a dedicated Belgian payroll consultant who knows joint committee 200 from joint committee 218 from joint committee 220 without checking a reference table.

The onboarding consultation is exceptionally thorough. SD Worx assigns a dedicated Belgian payroll consultant and HR advisor early in the process, and the initial scoping covers joint committee classification, applicable CBA wage tables, white-collar versus blue-collar status determination, double holiday allowance scheduling, end-of-year bonus mechanics for the relevant sector, meal voucher and eco-cheque administration, and supplementary pension structuring. We found their Belgian sectoral expertise particularly impressive the team could speak granularly about Joint Committee 200 (auxiliary white-collar workers), Joint Committee 124 (construction), Joint Committee 330 (healthcare establishments), and the differences in sick leave compensation tails between blue-collar and white-collar staff without needing to “get back to us.”

For multi-region Belgian deployments, the experience held up consistently. SD Worx drafts contracts natively in Dutch, French, or German depending on the employee’s region of work, with no reliance on translation services or partner intermediaries. Single Permit (combiné / gecombineerde vergunning) sponsorship was handled directly with the regional employment authorities (VDAB in Flanders, Le Forem in Wallonia, Brussels Economy and Employment in Brussels-Capital) and the federal Office des Étrangers, with practical case-handling experience the team referenced specific recent applications without prompting.

Response times averaged same-business-day for standard payroll queries and 24 to 48 hours for complex compliance questions. This is comparable to the dedicated relationship manager experience at specialist competitors and noticeably better than the ticket-queue experience at platform-led EORs for Belgium-specific complexity. The dedicated payroll consultant model rather than rotating support agents makes a material difference when you’re navigating joint committee disputes or contested terminations.

Where SD Worx fell slightly short was in self-service speed and global multi-country flexibility. If you’re looking to onboard a Belgian employee in 48 hours through a self-service flow at midnight, you’ll find the experience dramatically slower and more manual than at Deel or Multiplier. The platform exists, the documentation is professional, and the execution is correct, but it is fundamentally a managed-service model rather than an instant-onboarding platform. For Belgium-only or Belgium-primary deployments, this trade-off favours SD Worx; for fast-moving global remote hiring, it does not.

SD Worx offers a substantially broader service portfolio than most EOR-only platforms, reflecting its origins as an end-to-end Belgian and European payroll and HR services firm. The core offerings break down into four categories.

Employer of Record (EOR) and Payroll Outsourcing is the flagship offering. SD Worx legally employs workers on your behalf in Belgium and across its European entity footprint, handling RSZ/ONSS payroll, the Dimona declaration system, employment contracts in the appropriate language of region, joint committee classification, statutory benefits, double holiday allowance, end-of-year bonus, meal vouchers, eco-cheques, supplementary pension administration, onboarding, and offboarding. For companies that already have a Belgian entity, SD Worx also offers payroll outsourcing on the same infrastructure without the EOR layer.

HR Consulting and Advisory services handle complex Belgian employment scenarios including joint committee classification disputes, contested termination negotiations, restructuring and collective dismissal procedures, workforce reorganisation, and Single Status notice calculations for long-tenured employees where notice can exceed 60 weeks. SD Worx maintains in-house Belgian employment law expertise and engages external counsel where required, which is genuinely valuable for the abusive dismissal exposure framework that adds 3 to 17 weeks of indemnity for procedural errors.

Immigration and Mobility Services cover Belgian Single Permit (combiné / gecombineerde vergunning) and EU Blue Card sponsorship across all three Belgian regions, A1 certificate coordination for cross-border posted workers under EU social security regulations, and complex international assignment structuring including expatriate tax coordination. SD Worx has direct working relationships with the regional employment authorities and the federal Office des Étrangers / Dienst Vreemdelingenzaken, which produces materially faster and more reliable Single Permit execution than partner-mediated approaches.

Additional services include time and attendance management, group hospitalisation insurance coordination, mobility budget administration (the alternative to company cars under Belgian tax-favourable mobility rules), HR analytics and reporting, and workforce management software through proprietary and partner platforms. SD Worx also operates training and certification programmes for in-house Belgian payroll professionals, which is one indicator of the depth of native expertise the firm maintains.

SD Worx does not publish pricing on its website, opting instead for consultation-based quoting that reflects the managed-service model. Based on proposal data we’ve reviewed, the pricing structure breaks down as follows:

• EOR (Belgium): Margin on total employment cost, typically 15 to 30 percent depending on role complexity, joint committee, and volume
• Payroll outsourcing (own-entity clients): From approximately €25 to €45 per payslip per month depending on complexity and volume
• HR consulting and advisory: Project-based or retainer engagements, typically €150 to €350 per hour for Belgian senior advisors
• Single Permit and immigration: Per-application fees plus government charges, typically €3,500 to €6,000 for a standard non-EU sponsorship

The margin-on-total-employment-cost EOR pricing positions SD Worx in the upper tier of the Belgian market on a like-for-like comparison with platform-led providers. For a senior Belgian hire on a €80,000 gross salary, a 20 percent margin produces an annual EOR fee of around €16,000, which on a per-employee-per-month basis is materially higher than Multiplier or Deel’s flat fee structure. For lower-paid roles or hourly blue-collar workers, the margin model can be more competitive depending on volume.

SD Worx’s pricing model is structured around the realities of Belgian managed service rather than transactional global remote hiring. There are no setup fees for standard engagements, but minimum commitments and notice terms reflect the substantial onboarding investment SD Worx makes in joint committee classification, contract drafting, and operational setup. For volume programmes (50+ employees), pricing typically becomes meaningfully more favourable as the per-employee operational cost decreases.

One important nuance: because SD Worx serves primarily Belgian and European mid-market and enterprise clients rather than fast-moving startups or global remote teams, their pricing conversations often involve detailed scoping of joint committee implications, sectoral CBA cost overlays, and supplementary benefits structuring that don’t apply to simpler direct-employment EOR deals. If you’re a Belgian-focused enterprise, this commercial sophistication is an advantage. If you’re a global startup hiring three people in Belgium, the quoting process will feel over-engineered for the scope.