Product

Axiom.Codex

One API covers payroll, travel allowances, taxes, garnishments, B2B accounting and workforce planning. Every calculation is auditable, signed and cited against the applicable paragraph of law.

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▦ Contract Matrix →·▥ Payroll Cashflow →

HR & Payroll

Calculations for employees and employers — from gross wage to net, travel allowances, taxes and garnishment deductions.

Travel Allowances

Act No. 283/2002 Coll.

✓Domestic meal allowance by trip duration §5
✓Km reimbursement and fuel consumption §7
✓Foreign meal allowance — 160+ countries with daily ECB rates §13
✓Accommodation §8 and incidental expenses §9
✓Multiple trips per day, multiple countries in one day
✓Historical rates from 2010

Monthly Payroll

Act No. 461/2003 Coll. · 580/2004 Coll. · 595/2003 Coll.

✓Social insurance for employee and employer §12–13 (461/2003)
✓Health insurance including disabled-person rates §12 (580/2004)
✓Tax advance and child tax bonus §33, §35 (595/2003)
✓Company car benefit — non-cash income for employee
✓Full employer cost including all levies
✓Historical rates from 2010

Personal Income Tax

Act No. 595/2003 Coll.

✓Annual reconciliation — tax base, rates, overpayment/shortfall §15
✓Non-taxable parts of the tax base §11 — basic, spouse, contributions
✓Child tax bonus §33
✓Monthly advance for employers §35
✓Annual employer reconciliation §38
✓Historical rates from 2010

Wage Garnishments

Act No. 268/2006 Coll. · 233/1995 Coll. · Labour Code §131–131a

✓Non-deductible amount and garnishment thirds §131 Labour Code
✓Claim prioritisation — alimony, priority, other
✓Proportional distribution at equal claim priority
✓Court enforcement, administrative enforcement, voluntary deduction
✓Batch: multiple claims at once with automatic distribution
✓Historical subsistence minimum values from 2010

B2B

B2B Accounting

Business taxes and contributions — VAT, depreciation, corporate tax, self-employed health insurance, withholding tax, motor vehicle tax and insurance tax.

VAT

Act No. 222/2004 Coll.

✓Input and output VAT per transaction
✓Tax base, adjustments, coefficients
✓Supporting data for VAT return

Tax Depreciation

595/2003 §22–§28

✓Straight-line and accelerated methods
✓Depreciation groups 1–4
✓Suspension, disposal, residual value

Corporate Tax

595/2003 §15

✓Corporate income tax base
✓Standard and micro-taxpayer rate
✓Tax reliefs and deductions §30

Health Ins. Settlement

580/2004 §19

✓Annual health insurance settlement for self-employed
✓Overpayment/shortfall for self-employed and employer
✓Minimum assessment base

Withholding Tax

595/2003 §43

✓Dividends, interest, royalties
✓Resident and non-resident payments
✓Treaty (DTT) and statutory rates

Motor Vehicle Tax

Act No. 361/2014 §5–§10

✓Annual tax for one or multiple vehicles
✓Estimated tax §10 par. 2
✓Batch tax return

Insurance Tax

Act No. 213/2018 Coll.

✓Life and non-life insurance
✓Tax base and rates by sector
✓Supporting data for tax return

Workforce

Workforce Intelligence

Tools for workforce management — from attendance to shift optimisation, cost centres and agency employment.

Payroll from Attendance

461/2003 Coll. · 580/2004 Coll.

✓Monthly payroll directly from attendance logs
✓Automatic calculation of overtime, night and weekend premiums
✓Output identical to classic monthly payroll calculation

Shifts & Cost Centres

Labour Code 311/2001 · 461/2003 Coll.

✓Cost of a single shift including premiums and employer levies
✓Labour cost aggregation by cost centres
✓Shift plan validation against Labour Code (breaks, rest, night limits)
✓Full cost analysis, optimisation and automated shift solver

Agency Employment

Labour Code §58a–§58b

✓Equal-pay gap calculation §58a
✓Batch settlement for a group of agency employees §58b
✓Comparison with a comparable employee at the user employer

Advisory

Advisory & Planning

Strategic calculations for HR and finance — contract type optimisation, cashflow forecasts and legislative change impact simulation.

Contract Type Matrix

461/2003 Coll. · 595/2003 Coll. · 580/2004 Coll.

✓Comparison of employment, self-employment (§6/§7), SRO, agreement — net income vs. employer cost
✓Optimal choice for a given gross wage or agreed fee
✓Full audit trail traces — suitable for LLM integration

Total Cost of Employment (TCE)

461/2003 Coll. · 580/2004 Coll. · 595/2003 Coll.

✓Total cost projection over N months
✓Includes sick days, bonuses, travel allowances and social fund
✓Year-on-year payroll fund comparison (YoY)

Payroll Cashflow Forecast

461/2003 Coll. · 580/2004 Coll. · 595/2003 Coll.

✓Monthly SP, ZP and tax outflow projection over N periods
✓Payment calendar for treasury and finance
✓Input for liquidity planning

Legislative Change Simulation

All applicable regulations

✓Baseline vs. scenario comparison when a rate or law changes
✓Impact on payroll fund across the full employee set
✓Output for lobbying analyses and CFO reports

Audit

Audit & Integrity

Every calculation is signed, versioned and reproducible. No black boxes.

JWS ES256 Signature

RFC 7515 · RFC 7518

✓Every API response signed with ES256 key
✓Public JWK endpoint for client-side verification
✓Server-side verification via /api/v1/verify

Audit Trail & Replay

Internal journal

✓Every calculation recorded with engine and legislative pack version
✓Replay: re-run from journal and verify determinism
✓Explanation endpoint: inputs, paragraph citations, version

Idempotent Execution

Internal

✓Result caching with replay tracking
✓Safe call repetition without duplication risk
✓Coverage: payroll, tax, travel

PDF Export — In Development

Internal

✓PDF with audit trail, law citations and JWS signature
✓Statutory deadline calendar (SP, ZP, tax) for a given date range
✓Supporting documents for compliance and tax audits