Structures and concepts

Date of Incorporation: What It Is and Where to Find It

The date of incorporation is the day the registrar writes on the certificate, not the day you applied. Where to read it and which deadlines start that day.

Charles Martin
Charles MartinFounder, CorpSec
Updated October 202613 min read
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The date of incorporation is the day a company begins to exist in law.

You do not set it: the registrar writes it, and every statutory clock starts that day, bank account or not.

The short answer

QuestionAnswer
What is it?The date from which the company is a legal person
Who fixes it?The registrar, on the certificate or notice it issues
Where is it written?On that certificate, and on the public register
Can the company change it?No. You only choose when you file
What does it start?First accounts, first annual filings, every anniversary

Three things to hold on to:

  • It is the date on the document, not the date you sent the application.
  • It is not the date of your tax number, your bank account or your first sale.
  • Filing dates are counted from it even if the company has never traded.

What the date of incorporation means

Before that date there is a set of forms. From that date there is a legal person, separate from its founders. The UK Companies Act 2006 puts it in one line: registration has its effects "as from the date of incorporation".

Section 16 of the Act lists those effects:

  • the subscribers become a body corporate, under the name on the certificate
  • that body is "capable of exercising all the functions of an incorporated company"
  • the people named as directors or secretary are deemed appointed

Other company laws say the same thing in their own words.

JurisdictionWords of the statuteDocument that carries the date
United Kingdom"as from the date of incorporation"Certificate of incorporation
Singapore"on and from the date of incorporation specified in the notice"Notice of incorporation
Hong Kong"on and after the date of incorporation stated in the certificate of incorporation"Certificate of incorporation
Delaware LLC"at the time of the filing of the initial certificate of formation", or a later date written in itCertificate of Formation

In the UK, Singapore and Hong Kong, the date that counts is the one the registrar writes on the certificate or notice. Not the day you applied, and not the day you started trading.

Who fixes the date, and how

The order of events is the same in the UK, Singapore and Hong Kong.

  1. You file the application.
  2. The registrar registers the company.
  3. The registrar issues a certificate or a notice, with the date on it.
  4. The company exists from that date.

In the UK, section 15 of the Companies Act 2006 says what the certificate must state:

  • the company's name and registered number
  • the date of its incorporation
  • whether it is limited or unlimited, and if limited, by shares or by guarantee
  • whether it is private or public
  • where its registered office sits: England and Wales, Scotland or Northern Ireland

The same section makes the certificate "conclusive evidence" that the company is duly registered. Hong Kong's Companies Ordinance uses the same words for its own certificate.

Singapore and Delaware each differ on one point.

  • Singapore issues a notice of incorporation. A "certificate of confirmation of incorporation" exists too, on request and for a fee.
  • A Delaware LLC is formed when its certificate is filed, or at any later date or time the certificate specifies.
  • A Delaware corporation exists "from the date of such filing" of its Certificate of Incorporation, under section 106 of the General Corporation Law.

A vocabulary point: an LLC has a date of formation. "Incorporation" is the word for corporations, and forms often use the two loosely.

3 questions

Which jurisdiction fits you?

Answer three questions and get the three jurisdictions that match your situation.

1 of 3
Where do you come from?

Where to find the date of incorporation

For your own company, read the certificate or notice issued at registration. For someone else's, the public register is usually enough.

RegisterDoes the free search show the date?
UK, Companies HouseYes, on the company overview
Hong Kong, Companies RegistryYes, in the free Company Name Search
Ireland, COREYes, with the basic company record
Delaware, entity searchYes, as "incorporation or formation date"
Singapore, BizFileThe year, read from the first four digits of a local company's UEN

For a Singapore company, the exact day is on the notice of incorporation.

Companies House gives you three routes to the date, all free and without an account:

  • the overview of the company record, next to its type and status
  • the certificate itself, as a PDF in the filing history
  • the advanced search, which filters companies by incorporation date

The step-by-step is in our guide on how to look a company up on Companies House.

Where the date comes from, and where to read itThe document that fixes the date is not always the place a third party can check it for free.
Document that carries the dateExact date on the free search?
United KingdomCertificate of incorporationYes, on the company overview
Hong KongCertificate of incorporationYes, Company Name Search
SingaporeNotice of incorporationThe year only, read from the UEN
Delaware LLCCertificate of FormationYes, incorporation or formation date
For a Singapore company, the exact day is on the notice of incorporation.
Source: Companies Act 2006 s.15 and s.16, the Singapore, Hong Kong and Delaware statutes quoted above, and our register guides

Incorporation date vs registration date

Forms use several date labels. Only some of them mean the date of incorporation.

Label on the formWhat it meansSame date?
Date of registration, UKGOV.UK counts deadlines from "the date you registered with Companies House"Yes
Date of formationThe equivalent term for an LLCYes, for an LLC
Date of registration in another US stateThe day an existing company registered to do business in a second stateNo, it is later
Date trading startedThe first sale, hire or contractNo
Accounting reference dateThe day the financial year endsNo
Date the tax number was issuedA tax office eventNo

When a form is unclear, give the date printed on the certificate. That is the one a bank or a counterparty will check against the register.

What the date starts in the UK

The UK hangs its first-year calendar on the date of incorporation. The figures below come from GOV.UK.

WhatHow it is counted
Accounting reference dateLast day of the month of incorporation, one year on
First accounts, period coveredFrom the day of incorporation to the accounting reference date
First accounts, filing at Companies House21 months after the date you registered
First confirmation statementReview period ends 12 months after incorporation, then 14 days to file
Corporation taxAn accounting period cannot exceed 12 months

GOV.UK gives its own example. A company set up on 11 May:

  1. gets an accounting reference date of 31 May the following year
  2. prepares first accounts covering 12 months and 3 weeks
  3. may need 2 tax returns to cover those accounts, because the first period runs over 12 months
  4. then has 2 payment deadlines instead of one
The first year of a UK company incorporated on 11 MayAll four markers are counted from the date on the certificate. A bank account, a tax number or a first customer moves none of them.
  1. Day 0, 11 MayDate of incorporation on the certificate. The first accounting period starts
  2. 12 monthsConfirmation statement review period ends, then 14 days to file
  3. 31 May, next yearAccounting reference date. First accounts cover 12 months and 3 weeks, so 2 tax returns
  4. 21 monthsFirst accounts due at Companies House
Source: GOV.UK guidance on first accounts, annual accounts and the confirmation statement

Each tax return is due 12 months after its period ends, and the tax itself at 9 months and 1 day.

What it starts in Hong Kong and Singapore

The two jurisdictions use the date differently. These figures come from our compliance guides for each.

JurisdictionObligationClock
Hong KongAnnual Return, Form NAR1Within 42 days of the incorporation anniversary
Hong KongBusiness Registration renewalOn the anniversary clock
Hong KongFirst Profits Tax ReturnUsually issued about 18 months after incorporation
SingaporeCompany secretaryAppointed within 6 months of incorporation
SingaporeAuditor, unless audit-exemptAppointed within 3 months of incorporation
SingaporeAnnual returnWithin 7 months of the financial year-end

Read the last row carefully.

  • In Hong Kong, the annual return follows the incorporation date.
  • In Singapore, it follows the financial year-end.
  • The date of incorporation still matters in Singapore, for the two appointments above.

A company with no bank account still has deadlines

This is where founders abroad get caught. They incorporate, then spend weeks on banking and tax registration, and treat the company as not yet started.

The register does not see it that way. The date of incorporation is not:

  • the day the tax number arrives
  • the day the bank account opens
  • the day of the first invoice
  • the day you consider the business live

A UK company files accounts whether it is active or dormant, so the 21 months run regardless.

Four habits remove the risk:

  1. Copy the date from the certificate into a calendar on day one.
  2. Add 12 months plus 14 days, and 21 months.
  3. Note the accounting reference date beside them.
  4. Ask early whether the first period needs two tax returns.

Mapping that first irregular year is part of setting up a UK company from abroad.

Can you choose or change the date?

You can influence the date before it exists. After that, it is the registrar's record.

QuestionAnswer
Can I pick the day in advance?In the UK, Singapore and Hong Kong, you pick the day you file. The registrar writes the date
Can I name a future date?A Delaware LLC can: its certificate may specify a later date or time
Can I backdate it?No. The company exists from the date on the document, not before
Can I change it later?No. The date is the one stated on the certificate

Other details on the record do move:

  • the name can change, while the company number stays
  • directors are appointed and resign
  • the filing history grows every year

The date of incorporation stays as printed.

The summary

QuestionAnswer
What is the date of incorporation?The day the company becomes a legal person
Who decides it?The registrar, on the certificate or notice
Is it the day I applied?Not necessarily. The document decides
Where do I read it?On the certificate, and on most public registers for free
Is the UK "date you registered" the same date?Yes
When are a UK company's first accounts due?21 months after that date
Does a company that has not traded escape the deadlines?No
Can it be changed?No

Frequently asked questions

What is the date of incorporation?

It is the day a company starts to exist as a legal person. The registrar states it on the certificate or notice of incorporation, and the company can act in its own name from then.

Is the date of incorporation the same as the date of registration?

In the UK, yes: GOV.UK counts deadlines from "the date you registered with Companies House". In the United States, a company can also register later in a second state, and that date is a different one.

How do I find a company's date of incorporation?

Read its certificate of incorporation, or search the public register. Companies House, the Hong Kong Companies Registry, Ireland's CORE and Delaware's entity search all show the date for free.

Where is the date of incorporation on a UK certificate?

It is one of the items the certificate must state under section 15 of the Companies Act 2006. The others are the name, the number, the company type and where the registered office sits.

Is the date of incorporation the day I submitted the application?

Not necessarily. In the UK, Singapore and Hong Kong, the company exists from the date written on the certificate or notice. A Delaware LLC is formed when its certificate is filed, unless it names a later date.

Can you change the date of incorporation?

No. The date is the one stated on the certificate, which in the UK and Hong Kong is conclusive evidence of registration. You control only the day you file.

Is the date of incorporation the date the business started trading?

No. A company can be incorporated months before its first sale. Filing dates are counted from incorporation, not from the start of activity.

What deadlines does the date of incorporation start in the UK?

First accounts are due at Companies House 21 months after it. The first confirmation statement covers the 12 months after it, with 14 days to file.

Why do first UK accounts cover more than 12 months?

Because they run from the day of incorporation to the accounting reference date, which is the last day of that month one year on. A company set up on 11 May covers 12 months and 3 weeks.

Does an LLC have a date of incorporation?

Strictly, it has a date of formation, since incorporation is the term for corporations. On most forms the two labels ask for the same thing: the date the entity came into existence.

Sources

The legal effect of the date and the contents of the certificate are quoted from the UK Companies Act 2006, the Singapore Companies Act 1967, the Hong Kong Companies Ordinance and the Delaware LLC Act, read in October 2026. UK deadlines are quoted from GOV.UK guidance. Hong Kong and Singapore deadlines, and what each public register displays, are taken from our own published guides, not re-read at source for this article. The Delaware rule quoted covers LLCs only. This is informational, not legal or tax advice.

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