Your correspondence. Digital, instant, wherever you are.
HMRC, IRS, Companies House, Mercury, Wise: any letter that reaches your company gets scanned, you get notified, and it's delivered to your dashboard. In real time.
The Mailbox comes included in every Aiden Startup plan: your official mail, digital and in order.
Demo
Real address· London or Wilmington
Demo
HMRC · notice
Scanned to PDFClassified and searchable in your dashboard.
Scanned within 24-48 working hours· with OCR
Demo
New letter from Companies House
Seen — archived
Real-time alerts· permanent archive
Everything you get, from day one.
Assigned address
A real address, not a PO box.
Your company has an official address in the City of London or in Wilmington, valid for the registry and official mail.
It is included in every Aiden Startup plan while your plan is active.
Demo
LondonCity of London
WilmingtonDelaware
Digitisation and archive
Every letter, as PDF, searchable.
Every letter is scanned to PDF within 24-48 working hours, with OCR, and is classified by sender and type in your dashboard.
The archive is permanent: you can come back to any document whenever you need it.
Demo
hmrc letter
HMRC · notice · april.pdf
Alerts
You find out in real time.
As soon as a letter arrives you get the alert in the dashboard and by email, with the document already scanned.
So an HMRC or Companies House notice never sits for weeks in a physical mailbox.
Demo
New letter: Companies House
Opened in the dashboard
And also
Designed for your official mail.
Everything that reaches your company, managed end to end.
Official reception
HMRC, IRS, Companies House, Delaware Division, banks, suppliers and couriers: we receive it all.
Permanent archive
Every document stays in your dashboard, classified and searchable, alongside the rest of your documentation.
Physical forwarding
If a document is needed on paper (for example, for the bank), we forward it by courier wherever you are, at a transparent one-off cost.
12.500+
letters managed
<15 min
average scan time
100%
digitized and archived
2
countries · London & Delaware
You never miss a single letter. Never.
When you set up a company in the UK or Delaware, you receive official correspondence: HMRC notices, Companies House forms, IRS communications, bank statements, legal requests. The Mailbox takes care of it all.
Instant notification
As soon as a letter arrives at your address, we open it, scan it, and notify you by email + WhatsApp + dashboard in under 15 minutes.
Your advisor reads it first
If the letter is urgent or needs action (HMRC, IRS, Companies House), your personal advisor reviews it and explains what to do in Spanish, before you even open it.
Searchable archive
Every letter is OCR-scanned. Search by text, date, sender, or tag and find it in seconds. Your tax records, ready for audits or inspections.
All the official mail for your company.
UK
HMRC
Corporation Tax · VAT · PAYE · Pension
UK
Companies House
Confirmation Statement · Annual accounts
US
IRS
EIN · Form 5472 · Federal tax filings
US
Delaware Division
Annual Report · Franchise Tax
Banks
Wise, Mercury, Revolut, etc.
Legal notices
Court orders, lawsuits, legal requests
Suppliers
Invoices, contracts, communications
Couriers
Packages (with optional forwarding)
From physical mailbox to digital notification.
This is the journey of every letter that reaches your company.
1
We receive
The letter arrives at your official address (London or Delaware). Our team logs it immediately.
2
We scan
Opening, high-resolution scanning, OCR (searchable text), and automatic classification (HMRC, IRS, bank, etc.).
3
We notify
Email + WhatsApp + dashboard. If it needs action, your advisor explains the next step in Spanish.
4
We archive
It's stored in your digital archive — searchable, downloadable, audit-ready. The physical copy is kept for 6 months (forwarding on request).
Your physical mailbox, fully digital.
Letters that arrive at your registered office address are scanned and appear here. Lunnar reads them and extracts key data. Click one to view it.
app.aiden.es/buzon
DEMO
Mailbox · Correspondence inbox
71-75 Shelton St, London WC2H 9JQ
Unread
2
Total this month
12
Average scan time
≈ 4 h
Click the first letter to see it scanned and the AI extraction.
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Reference:—
Date:—
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SCANNED · AIDEN
Lunnar extraction
Confidence 98%
Sender
—
Type
—
Due date
—
Action required
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📝 Summary
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The intelligence of Aiden, working with you.
Deployed across all of AidenEmails, website copy, replies to customers. Lunnar learns how you write and takes over — it almost feels like magic.
Your greatest allyAn unpaid invoice, a domain up for renewal, a website running slow. It tells you beforehand, not once it's already a problem.
Sums up what you don't have time for.Forty unread emails become five lines with what you really need to look at today.
Helping you 24 hours a dayEven at 3 in the morning, our AI Lunnar helps you by connecting to your account and sorting out your issues on its own
Builds your website with you watching.You tell it what you do and it puts together a first version. From there you change it by talking, not by touching code.
And it keeps nothing of yours.What you tell it is used to help you. It doesn't train anyone else's models and isn't sold to anyone.
What you might be wondering.
Is the Mailbox included in all plans?
Yes. The Mailbox is included at no extra cost in all plans (Standard and PRO, UK and Delaware). It's part of your registered office address.
What if I need the physical original?
On request, we'll send the original to the address you provide. We keep originals for 6 months by default. International forwarding is billed at the actual shipping cost (~€10-25 depending on destination).
How quickly do you receive and notify?
Mail is processed in 4-hour windows during business hours (UK / Spain). The average time from receipt to notification is 15 minutes. Letters marked urgent (HMRC, IRS) are processed in under 1 hour.
Who opens the letters?
Aiden staff under signed confidentiality agreements. Letters that require action are reviewed by your assigned personal advisor, not by third parties. If you'd rather we didn't open letters (envelope scan only), you can enable that in settings.
What happens if an urgent legal notice arrives?
We activate a priority protocol: we call you by phone in addition to the digital notifications, and if the matter requires a lawyer, we connect you directly with one from our partner network (UK Solicitor or US Counsel depending on the country).
Do I have access to the full history?
Yes. As long as you're a customer, your digital archive is unlimited. Search by OCR text, filter by sender, date, type. If you cancel, we'll give you a ZIP export with your full history.
Your mail, wherever you are.
Mailbox included in every plan. No add-ons, no surprises.