Complaint Letter Builder
Generate a structured formal complaint letter addressed to a trader, employer, landlord, public body, or regulator โ with the correct escalation path and outcome requested.
Calculator โ accuracy depends on current rates
This calculator uses the rules and figures published on the dates shown. Rates, thresholds, and fees change โ always verify the current figure on the official government website before paying or filing. The output is not legal advice.
Rates current as of: .
Privacy: runs entirely in your browser. Nothing you enter is sent to us or saved.
When to use this tool
Use when you need to make a formal written complaint and want to ensure it covers all the legally relevant points. A clear letter setting out the facts, legal basis, and remedy sought is the first step before escalating to an ombudsman, regulator, or court. Most ombudsmen require evidence of a deadlocked or ignored complaint before accepting a referral.