Estimate a UK CIS construction subcontractor's tax refund for 2025-26 to 2027-28. Free, no sign-in.
Connect Remote server
claude mcp add --transport http cis-refund-calculator https://mcp.splusmoney.co.uk/mcp
{
"mcpServers": {
"cis-refund-calculator": {
"url": "https://mcp.splusmoney.co.uk/mcp"
}
}
}
{
"servers": {
"cis-refund-calculator": {
"type": "http",
"url": "https://mcp.splusmoney.co.uk/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://mcp.splusmoney.co.uk/mcp
Tools 2 found in our last check
estimate_cis_refundEstimate a UK CIS subcontractor's tax refund (or amount to pay) for tax year 2025-26, 2026-27 or 2027-28 (Budget 2026 rules for 2027-28). Takes the year's gross CIS income, the CIS deducted (the statement total, or the 20%/30% rate), allowable expenses (materials, tools, van mil…
get_cis_tax_ratesList the UK rates a self-employed CIS subcontractor's tax bill uses for 2025-26, 2026-27 or 2027-28, each with its GOV.UK source: Personal Allowance and taper, income tax bands (England/Wales/NI or Scotland), Class 4 NIC limits and rates, the Class 2 position (treated as paid ab…
Details
| Endpoint | https://mcp.splusmoney.co.uk/mcp (Streamable HTTP) |
| First published | 1 Nov 2026 |
| Last updated | 1 Nov 2026 |
| Registry name | uk.co.splusmoney/cis-refund-calculator |
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