---
id: ADR-ACC-REC-003
title: Outstanding Standing Is Derived for the Requested Day
product_area: accounting
module: reconciliation
revision: 2
status: proposed
design_intent: proposed
source_sha:
  services-accounting: f47cb263875bbc0c5640fba7dae6785ec32695f8
  react-console: baf6dae382d6f41dce976c7f848667ccc37e076f
decision: >-
  Persist financial facts and arrival dates, then derive outstanding standing
  for the requested day.
constrains:
  - DOM-ACC-REC-002
  - STATE-ACC-REC-004
  - WF-ACC-REC-008
  - DOM-ACC-REC-005
origin: >-
  services-accounting docs/reconciliation/architecture.md §12.1 (hybrid:
  persisted facts, derived timing)
alternatives:
  - option: Persist standing and advance it through nightly updates.
    why_not: Late or failed execution would leave an authoritative-looking stale state.
  - option: Calculate arrival dates again for every read.
    why_not: >-
      Later policy changes would move earlier effects and make indexed date
      queries harder.
consequences:
  - >-
    Queries and detectors use equivalent classification rules with
    calendar-boundary evidence.
  - Standing filters incur scanning cost because standing is derived.
  - >-
    Readiness computes overdue facts independently of scheduled concern
    creation.
supersedes: []
evidence:
  - >-
    services-accounting at f47cb263:
    modules/reconciliation/services/rules/outstanding-state.ts;
    services/persistence/settlement-items.ts;
    docs/reconciliation/architecture.md §12.
---
# Outstanding Standing Is Derived for the Requested Day

## Context

Staff need timing answers for review dates without waiting for a nightly status rewrite.

## Decision

Persist financial facts and arrival dates, then derive outstanding standing for the requested day.

## Alternatives Considered

Persist standing and advance it through nightly updates. Late or failed execution would leave an authoritative-looking stale state.

Calculate arrival dates again for every read. Later policy changes would move earlier effects and make indexed date queries harder.

## Consequences

Queries and detectors use equivalent classification rules with calendar-boundary evidence. Standing filters incur scanning cost because standing is derived. Readiness computes overdue facts independently of scheduled concern creation.