Seasonal Job Annualization methodology

annualizedRunRate = seasonalEarnings ÷ paidSeasonWeeks × comparisonWeeks

weeklyRunRate = seasonalEarnings ÷ paidSeasonWeeks

calendarMonthlyAverage = seasonalEarnings ÷ 12

offSeasonWeeks = comparisonWeeks − paidSeasonWeeks

Money inputs and outputs use the currency selected in the scenario without changing the canonical methodology. Pay, time, benefits and work-related costs use the units stated beside each input.

• The worked example is calculated through the same shared-work-logic engine as the planner.
• Non-finite and out-of-range assumptions return an input error.
• Result cards, trace, CSV, PDF and methodology bind to named engine result fields.

• Seasonal earnings and weeks are entered by the user.
• The weekly run rate is held constant only for comparison.

This calculator has no current policy-data dependency. Its work and pay assumptions are user supplied. Registered family-level regression suites exercise the shared work-logic engine and worked-result reconciliation.

• Annualized run rate is not a forecast or promise of year-round earnings.
• Taxes, benefits and off-season income are excluded.

This is educational decision support, not personalised tax, legal, financial or career advice. Check the treatment of your circumstances under the rules that apply to you and seek qualified advice where appropriate.

Registered family-level suites test formula invariants and example reconciliation; the release ledger records that coverage without claiming a separate oracle for every line of public copy. There is no official threshold or benchmark to refresh for this calculator. Work and pay inputs remain user-supplied because they vary by person, job and contract.

1. 2026-07-27: Initial public release of the Seasonal Job Annualization planner and methodology.