# Key Definitions: Capital, Books & Charge
This lesson covers a cluster of definitions that recur throughout the Act — capital terms, record-keeping terms, and the meaning of 'charge'.
## 1. Capital-related definitions
### Section 2(8) – Authorised Capital / Nominal Capital
The capital that is authorised by the memorandum to be the maximum amount of share capital of the company.
- It is the ceiling — actual issued capital can never exceed it without altering the MoA.
### Section 2(15) – Called-up Capital
That part of the capital which has been called for payment.
- It is not the same as paid-up capital — called-up includes amounts asked for but not yet received (calls in arrears).
### Tying it together – the capital pyramid
```
Authorised Capital (ceiling per MoA)
|
v
Issued Capital (offered to subscribers)
|
v
Subscribed Capital (taken up by subscribers)
|
v
Called-up Capital (amounts called from subscribers)
|
v
Paid-up Capital (amounts actually received)
```
## 2. Books and records definitions
### Section 2(12) – Book and Paper / Book or Paper
Includes: books of accounts, deeds, vouchers, writings, documents, minutes and registers — maintained on paper or in electronic form.
### Section 2(13) – Books of Account
Includes records maintained in respect of:
1. All sums of money received and expended and matters in relation to which receipts/expenditure take place;
2. All sales and purchases of goods and services;
3. The assets and liabilities of the company;
4. The items of cost as may be prescribed under Section 148 (cost records).
## 3. Section 2(16) – Charge
A charge means an interest or lien:
- created on the property or assets of a company or any of its undertakings or both;
- as security;
- and includes a mortgage.
Mortgage is a sub-set of charge (this 'includes mortgage' wording matters for Chapter VI – Registration of Charges).
## 4. Other quick definitions worth memorising
- Section 2(3) – Alter / Alteration: includes additions, omissions and substitutions.
- Section 2(5) – Articles: AoA as originally framed, or as altered, or as applied in pursuance of any previous company law or this Act.
- Section 2(14) – Branch office: any establishment described as such by the company.