---
title: "Changes to List effective tax properties"
method: GET
path: "/effective_tax_properties"
---

# Changes to List effective tax properties

`GET /effective_tax_properties`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 54 revisions.

- **2026-10-14** `353210c3786c`: 9 warning
- **2026-09-17** `b9b79a0450df`: 1 warning

## Changes

- **2026-10-14** `353210c3786c`: 9 warning
  - added the new `uk::has_irregular_payment` enum value to the `data/items/data/anyOf[subschema #2: With source_tax_property expanded]/source_tax_property/data/type` response property for the response status `200`
  - added the new `uk::has_postgraduate_loan` enum value to the `data/items/data/anyOf[subschema #2: With source_tax_property expanded]/source_tax_property/data/type` response property for the response status `200`
  - added the new `uk::ni_category` enum value to the `data/items/data/anyOf[subschema #2: With source_tax_property expanded]/source_tax_property/data/type` response property for the response status `200`
  - added the new `uk::p45` enum value to the `data/items/data/anyOf[subschema #2: With source_tax_property expanded]/source_tax_property/data/type` response property for the response status `200`
  - added the new `uk::payroll_id` enum value to the `data/items/data/anyOf[subschema #2: With source_tax_property expanded]/source_tax_property/data/type` response property for the response status `200`
  - added the new `uk::starter_declaration` enum value to the `data/items/data/anyOf[subschema #2: With source_tax_property expanded]/source_tax_property/data/type` response property for the response status `200`
  - added the new `uk::student_loan_plan` enum value to the `data/items/data/anyOf[subschema #2: With source_tax_property expanded]/source_tax_property/data/type` response property for the response status `200`
  - added the new `uk::tax_basis` enum value to the `data/items/data/anyOf[subschema #2: With source_tax_property expanded]/source_tax_property/data/type` response property for the response status `200`
  - added the new `uk::tax_code` enum value to the `data/items/data/anyOf[subschema #2: With source_tax_property expanded]/source_tax_property/data/type` response property for the response status `200`
- **2026-09-17** `b9b79a0450df`: 1 warning
  - added the new `ca::authorized_province` enum value to the `data/items/data/anyOf[subschema #2: With source_tax_property expanded]/source_tax_property/data/type` response property for the response status `200`

---

[Operation](https://skmtc.dev/nmbr/apis/nmbr-api/docs/effective_tax_properties/get.md) - [API](https://skmtc.dev/nmbr/apis/nmbr-api.md) - [Page](https://skmtc.dev/nmbr/apis/nmbr-api/changes/effective_tax_properties/get)