---
title: "List effective tax properties"
method: GET
path: "/effective_tax_properties"
tags: ["Effective Tax Properties"]
---

# List effective tax properties

`GET /effective_tax_properties`

## Query parameters

- `work_assignment_id` string
- `business_entity_id` string
- `effective_on` string
- `type` union
  - 'ca::ab::claim_amount' | 'ca::ab::total_income_less_than_total_claim_amount' | 'ca::ab::workers_compensation_class' | 'ca::bc::claim_amount' | 'ca::bc::eht' | 'ca::bc::total_income_less_than_total_claim_amount' | 'ca::bc::workers_compensation_class' | 'ca::cpp_exempt' | 'ca::ei_exempt' | 'ca::ei_premium_reduction' | 'ca::federal::additional_tax' | 'ca::federal::annual_deduction_at_source' | 'ca::federal::claim_amount' | 'ca::federal::commission_expenses' | 'ca::federal::commission_total_income' | 'ca::federal::income_tax_rate' | 'ca::federal::total_income_less_than_total_claim_amount' | 'ca::federal_oc_surtax_exempt' | 'ca::first_nation_exemptions' | 'ca::mb::claim_amount' | 'ca::mb::eht' | 'ca::mb::total_income_less_than_total_claim_amount' | 'ca::mb::workers_compensation_class' | 'ca::nb::claim_amount' | 'ca::nb::total_income_less_than_total_claim_amount' | 'ca::nb::workers_compensation_class' | 'ca::nl::claim_amount' | 'ca::nl::eht' | 'ca::nl::total_income_less_than_total_claim_amount' | 'ca::nl::workers_compensation_class' | 'ca::ns::claim_amount' | 'ca::ns::total_income_less_than_total_claim_amount' | 'ca::ns::workers_compensation_class' | 'ca::nt::claim_amount' | 'ca::nt::territorial_payroll_tax' | 'ca::nt::total_income_less_than_total_claim_amount' | 'ca::nt::workers_compensation_class' | 'ca::nu::claim_amount' | 'ca::nu::territorial_payroll_tax' | 'ca::nu::total_income_less_than_total_claim_amount' | 'ca::nu::workers_compensation_class' | 'ca::on::claim_amount' | 'ca::on::dependent_children_credit' | 'ca::on::eht' | 'ca::on::impaired_dependants_credit' | 'ca::on::total_income_less_than_total_claim_amount' | 'ca::on::workers_compensation_class' | 'ca::pe::claim_amount' | 'ca::pe::total_income_less_than_total_claim_amount' | 'ca::pe::workers_compensation_class' | 'ca::province_of_employment' | 'ca::province_of_work' | 'ca::provincial::income_tax_rate' | 'ca::qc::additional_tax' | 'ca::qc::claim_amount' | 'ca::qc::commission_percentage_taxed' | 'ca::qc::eht' | 'ca::qc::income_tax_rate' | 'ca::qc::qpip_exempt' | 'ca::qc::qpp_exempt' | 'ca::qc::tax_id' | 'ca::qc::total_income_less_than_total_claim_amount' | 'ca::qc::workers_compensation_class' | 'ca::sk::claim_amount' | 'ca::sk::total_income_less_than_total_claim_amount' | 'ca::sk::workers_compensation_class' | 'ca::statutory_holiday_pay' | 'ca::tax_id' | 'ca::yt::claim_amount' | 'ca::yt::total_income_less_than_total_claim_amount' | 'ca::yt::workers_compensation_class'
  - string[]
- `expand` string[]

## Response `200`

OK

- object
  - `object` string — The type of the object in Nmbr (`"list"`).
  - `data` object[]
    - `id` string — The unique identifier of the object in Nmbr.
    - `object` string — The type of the object in Nmbr (`"effective_tax_property"`).
    - `data` EffectiveTaxProperty
      - `type` string, nullable — The type of tax property being resolved (e.g. `ca::province_of_work`). Always reflects the requested type, even when the value was inherited from a different type on a parent owner (e.g. POW resolved via a POE Tax Property).
      - `value` string, nullable — The resolved value for this type as of the requested date, after applying the inheritance chain. `null` if no value exists anywhere in the chain (only present when filtering to a specific type that has no value).
      - `source_tax_property` object
        - `id` string — The unique identifier of the object in Nmbr.
        - `object` string — The type of the object in Nmbr (`"tax_property"`).

---

[API](https://skmtc.net/nmbr/apis/nmbr-api.md) · [All operations](https://skmtc.net/nmbr/apis/nmbr-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/nmbr/nmbr-api/versions/01cd9c45a923/schema)