# Taxley (UK Corporation Tax API) Tools API

**Canonical:** https://apis.io/apis/taxley/taxley-tools-api/  
**Provider:** Taxley (UK Corporation Tax API) — https://apis.io/providers/taxley/  
**Base URL:** https://taxley.co.uk  
**Documentation:** https://taxley.co.uk/developers

Taxley (UK Corporation Tax API) Tools API is one of 2 APIs that [Taxley (UK Corporation Tax API)](https://apis.io/providers/taxley/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 1 JSON Schema definition. Tagged areas include Tools. The published artifact set on APIs.io includes an OpenAPI specification and 1 JSON Schema.

The Tools API from Taxley (UK Corporation Tax API) — 18 operation(s) for tools.

## Operations (35)

| Method | Path | Summary |
|---|---|---|
| GET | `/api/v1/tools` | List the free tools |
| GET | `/api/v1/tools/corporation-tax` | Corporation Tax calculator (query string) |
| POST | `/api/v1/tools/corporation-tax` | Corporation Tax calculator (JSON body) |
| GET | `/api/v1/tools/deadlines` | Corporation Tax deadline calculator (query string) |
| POST | `/api/v1/tools/deadlines` | Corporation Tax deadline calculator (JSON body) |
| GET | `/api/v1/tools/late-penalty` | Corporation Tax late filing penalty and interest calculator (query string) |
| POST | `/api/v1/tools/late-penalty` | Corporation Tax late filing penalty and interest calculator (JSON body) |
| GET | `/api/v1/tools/directors-loan` | Director's loan tax and benefit in kind calculator (query string) |
| POST | `/api/v1/tools/directors-loan` | Director's loan tax and benefit in kind calculator (JSON body) |
| GET | `/api/v1/tools/capital-allowances` | Capital allowances calculator for companies (query string) |
| POST | `/api/v1/tools/capital-allowances` | Capital allowances calculator for companies (JSON body) |
| GET | `/api/v1/tools/chargeable-gains` | Chargeable gains calculator for companies (with indexation) (query string) |
| POST | `/api/v1/tools/chargeable-gains` | Chargeable gains calculator for companies (with indexation) (JSON body) |
| GET | `/api/v1/tools/company-size` | Micro-entity and small company size checker (query string) |
| POST | `/api/v1/tools/company-size` | Micro-entity and small company size checker (JSON body) |
| GET | `/api/v1/tools/long-period` | Long accounting period calculator: two CT600s (query string) |
| POST | `/api/v1/tools/long-period` | Long accounting period calculator: two CT600s (JSON body) |
| GET | `/api/v1/tools/company-car` | Company car tax calculator (query string) |
| POST | `/api/v1/tools/company-car` | Company car tax calculator (JSON body) |
| GET | `/api/v1/tools/company-van` | Company van tax calculator (query string) |
| POST | `/api/v1/tools/company-van` | Company van tax calculator (JSON body) |
| GET | `/api/v1/tools/mileage-allowance` | Mileage allowance calculator (query string) |
| POST | `/api/v1/tools/mileage-allowance` | Mileage allowance calculator (JSON body) |
| GET | `/api/v1/tools/home-office` | Use of home as office calculator (query string) |
| POST | `/api/v1/tools/home-office` | Use of home as office calculator (JSON body) |
| GET | `/api/v1/tools/trivial-benefits` | Trivial benefits for directors checker (query string) |
| POST | `/api/v1/tools/trivial-benefits` | Trivial benefits for directors checker (JSON body) |
| GET | `/api/v1/tools/dividend-reserves` | Can I pay this dividend? Reserves check (query string) |
| POST | `/api/v1/tools/dividend-reserves` | Can I pay this dividend? Reserves check (JSON body) |
| GET | `/api/v1/tools/salary-dividends` | Salary vs dividends calculator (query string) |
| POST | `/api/v1/tools/salary-dividends` | Salary vs dividends calculator (JSON body) |
| GET | `/api/v1/tools/sole-trader-vs-limited` | Sole trader or limited company calculator (query string) |
| POST | `/api/v1/tools/sole-trader-vs-limited` | Sole trader or limited company calculator (JSON body) |
| GET | `/api/v1/tools/director-pension` | Limited company pension contribution calculator (query string) |
| POST | `/api/v1/tools/director-pension` | Limited company pension contribution calculator (JSON body) |

## Machine-readable artifacts (2)

- **OpenAPI** — https://artifacts.apis.io/taxley/openapi/taxley-tools-api-openapi.yml
- **JSONSchema** — https://artifacts.apis.io/taxley/json-schema/taxley-tool-run-schema.json

## Other Taxley (UK Corporation Tax API) APIs (1)

- [Taxley API](https://apis.io/apis/taxley/taxley-api/)

## Tags

Tools

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/taxley/taxley-tools-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/taxley/.