WBSO calculator — calculation — Jurical
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WBSO calculator
WBSO calculator
€ 49 / calculation
v1.0.0 · vintage poc-2026-07
Step 1
Route
Employer (payroll tax)
Self-employed (S&O deduction)
▾
Year
2024
2025
2026
▾
Starter?
Yes
No
R&D hours per year
#
Step 2
Hourly-wage method (employer)
Fixed RVO hourly wage (€29)
Actual hourly wage
▾
Gross annual salary (actual method)
Fixed-cost surcharge (35%)
Yes
No
Step 3
Marginal income-tax rate % (self-employed)
Calculate draft — free
Your input is never shared; only the hash is public.
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The draft appears here
Fill in the form and calculate — the draft shows the full result layout, free. You only pay when you want to unlock the report.