About RedBoxIQ

RedBoxIQ builds free interactive calculators that help UK businesses understand what government policy changes, tax rules, and regulatory shifts actually cost them.

Too many businesses find out about cost increases from newspaper headlines. By then it's too late to plan. Our calculators let you plug in your own numbers and see the real impact — per employee, per month, per year.

All calculations use current 2025/26 rates published by HMRC, gov.uk, the Bank of England, ONS, OBR, and the Valuation Office Agency. We update rates when they change.

This is not financial advice. Our calculators provide estimates based on published rates. Always consult a qualified accountant or financial advisor for decisions about your business.