How the net-to-gross estimate works
The calculator runs the 2026 Luxembourg gross-to-net model repeatedly, using a binary search to find the annual gross salary that produces your target annual net pay.
- Your monthly target is multiplied by 12, even when salary is paid 13 or 14 times.
- The result shows the approximate gross amount for each contractual salary payment.
- Class 2 uses income splitting; Class 1a is an approximation; a tax-card rate uses the exact percentage you enter.
This is an educational estimate, not a guaranteed payroll result or tax advice. Benefits in kind, spouse income, bonuses, personal deductions, cross-border workdays, and tax-card entries can change the gross salary actually required.