# 0s and 1s CIS Filing (0sand1s.co.uk)

Verifies subcontractors with HMRC, works out CIS deductions on payments, and files monthly CIS300 returns online.

- Atlas card: https://inite.ai/en/atlas/0sand1s.co.uk
- Site: https://0sand1s.co.uk
- For: Construction contractors who pay subcontractors under CIS and file CIS300 returns with HMRC
- Categories: security
- Use 0/100 · alive 100/100

## Used for

- verify subcontractors with HMRC before paying them
- file monthly CIS300 returns and nil returns
- send deduction statements to subcontractors by email

## Price

- from 9 GBP/month, no free plan (read 2026-10-27 on https://0sand1s.co.uk/pricing)

## For developers

- API docs: https://0sand1s.co.uk/developers
- MCP server: uk.co.0sand1s/cis (namespace; open on 2026-10-27, 7 tools)
- Read 2026-10-27

## MCP server, measured daily

Server: https://0sand1s.co.uk/mcp, checked every day since 2026-10-27 (6 checks).

- Answered: measuring, 6 daily checks so far
- Median first answer: 914 ms
- Sign-in: none
- Context its tool definitions take: about 2251 tokens (7 tools)
- Tool definitions: A, 100/100
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-27

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Source: INITE Atlas, https://inite.ai/en/atlas/0sand1s.co.uk. JSON: https://inite.ai/api/atlas/0sand1s.co.uk. MCP: https://inite.ai/api/mcp (atlas_lookup).