The payroll engine
The country-pluggable payroll calculation engine — jurisdiction packs, the incidence model, how it works, how to run it, and its certification status.
Loonaangifte filing
The wage-tax filing (loonaangifte) lifecycle, tijdvakcodes, and statutory deadlines.
Pension filing (UPA)
The Uniforme Pensioenaangifte (UPA) sector-pension filing lifecycle, gated on payroll-run approval.
Payslips & annual statements
Loonstrook (payslip) and jaaropgaaf (annual statement) PDFs, rendered through docudesk.
GL posting & SEPA net-pay
How an approved payroll run posts to the general ledger and hands off net-pay to SEPA, both via shillinq.
Retroactive adjustments (TWK)
Retroactive corrections (TWK) to a sealed prior period — a delta that never rewrites the original payslip.
Sick pay (loondoorbetaling)
Loondoorbetaling bij ziekte — 70% continuation, the year-1 minimum-wage floor, the wachtdag deduction, and CAO uplift.
Proforma payslip simulation
A persist-nothing "what if" simulator over the same payroll engine — no Employee, Contract, Run, or Payslip is ever created.
Payroll mutation reports
A per-run diff report — who entered, who left, what changed, and the total wage-cost delta — before approving a run.
Loonbeslag (wage garnishment)
Court/deurwaarder-ordered wage garnishment — a floor-clamped, post-tax payslip fold that can never push net pay below the beslagvrije voet.
Company car bijtelling
Bijtelling privégebruik auto — company-car addition to taxable wage, folded into the gross BEFORE the payroll calculator runs.
DGA payroll mode
Director-major-shareholder payroll — no werknemersverzekeringen premiums, plus the gebruikelijkloon norm check.
Werkkostenregeling (WKR)
Werkkostenregeling administration — the vrije-ruimte ledger, cross-object assessment, and eindheffing exposure alerting.