An official UK letter appears in your dashboard and your heart skips a beat. Take a breath: most letters from HMRC and Companies House are routine. Since your registered address is with Aiden, we receive the mail, digitise it, and upload it to your dashboard — but reading it and taking action is up to you.
The most common letters (and what they mean)
- «Corporation Tax — information for new companies» (HMRC): arrives shortly after incorporation. It contains your UTR. Keep it safe — it’s one of the important ones
- Confirmation Statement reminder (Companies House): notification that your annual deadline is approaching. Filing on time avoids problems — check our guide to Confirmation Statement and Annual Accounts
- Corporation Tax reminder or notification (HMRC): alerts about registration, filing, or corporation tax payments
- «Notice to deliver a Company Tax Return»: HMRC formally requesting your tax return for a period. It has a deadline — don’t ignore it
- Penalty notice: something was filed late. Penalties increase over time, so the sooner you act, the less it will cost
- First Gazette notice / strike off: the most serious — Companies House has begun dissolving your company, usually for non-filing of documents. Requires immediate action
The 4-step method
- Identify the sender: Companies House (company registry) or HMRC (tax). They’re not the same
- Find the deadline: almost all letters have a «deadline» or «reply by» date. Write it down
- Locate the reference: Company Number or UTR — you’ll need it for any follow-up
- Act or ask: if it’s a reminder about something already in progress, file it; if it asks you for something you don’t understand, email support with the letter
Watch out for fake letters
Scams exist that mimic HMRC, asking for urgent payments via bank transfer or gift cards. HMRC never requests payment this way. If in doubt, verify on gov.uk or contact us before paying anything.
💡 Tip: check your correspondence inbox at least once a week. An official letter read on time is a simple task; read two months late, it could become a fine.
Have you received a letter and don’t know what to do with it? Email support from startup.aiden.es and we’ll review it with you.
⚖️ This guide is informational and does not replace professional tax or legal advice. For your specific situation, consult an adviser.