# Taxyearvo (taxyearvo.com)

Calculates UK self assessment tax and National Insurance from entered income and expenses, showing each step of the arithmetic.

- Atlas card: https://inite.ai/en/atlas/taxyearvo.com
- Site: https://taxyearvo.com
- For: People filing their own UK Self Assessment return, such as sole traders, freelancers and landlords
- Categories: finance
- Use 0/100 · alive 100/100

## Used for

- work out a Self Assessment bill from income and expenses
- plan payments on account and the balancing payment
- check how far back a filed return can be amended

## Price

- from 14 GBP/month, free plan (read 2026-10-21 on https://taxyearvo.com/pricing/)

## For developers

- OpenAPI: https://taxyearvo.com/openapi.json (8 paths)
- MCP server: com.taxyearvo/site (namespace; open on 2026-10-21, 7 tools)
- Read 2026-10-21

## MCP server, measured daily

Server: https://taxyearvo.com/mcp, checked every day since 2026-10-21 (5 checks).

- Answered: measuring, 5 daily checks so far
- Median first answer: 936 ms
- Sign-in: none
- Context its tool definitions take: about 678 tokens (7 tools)
- Tool definitions: C, 71/100
- Failing "params_described": 5 of 7 tools
- Failing "annotations": 7 of 7 tools
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-21

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Source: INITE Atlas, https://inite.ai/en/atlas/taxyearvo.com. JSON: https://inite.ai/api/atlas/taxyearvo.com. MCP: https://inite.ai/api/mcp (atlas_lookup).