# Authorised Capital and Called-Up Capital
## Core Idea
Share capital is described in several layers — each layer answers a different question: 'how much CAN we issue?', 'how much HAVE we issued?', 'how much have we ASKED for?'. Two key layers are Authorised Capital and Called-Up Capital.
## 1. Authorised Capital
- The maximum amount of share capital that a company is authorised to issue.
- Specified in the Memorandum of Association (MOA).
- Also called Nominal Capital or Registered Capital.
- Can be increased only by following the procedure for alteration of capital clause of MOA.
## 2. Called-Up Capital
- The part of the subscribed capital that the company has called for payment from shareholders.
- Represents the actual demand made by the company.
## 3. Where They Fit in the Capital Hierarchy
```
Authorised Capital
↓ (issued from)
Issued Capital
↓ (subscribed by investors)
Subscribed Capital
↓ (called for payment)
Called-Up Capital
↓ (actually received)
Paid-Up Capital
```
## Memory Hook
- Authorised = ceiling (set by MOA)
- Called-Up = part of subscribed capital that the company has formally demanded payment for