Direct answer
There is no single, universal “margin requirement for each forex pair” that applies to all brokers and all accounts. In practice, the margin requirement for a specific pair is the amount your account must hold to support the open position, and it is determined by the pair’s contract/instrument specifications and your broker’s margin rules (often linked to leverage and how margin is calculated).
Because broker margin formulas and account types vary, the only independently verifiable way to know the exact margin requirement “for each pair” is to check the margin/margin rate information in your broker’s account documentation or margin calculator for your exact account and instrument.
Explanation: what “margin requirement” means in forex
In forex trading, margin is a portion of funds that must be set aside when you open a leveraged position. The margin requirement is the specific amount your broker indicates is needed to keep the position open.
What affects it, in general terms:
- Pair/instrument specifications: Forex pairs differ in how the contract is defined (for example, what one contract represents and how the quoted currency relates to your account currency).
- Position size: Margin typically scales with the size of your position (lot size/contract size).
- Leverage and margin methodology: Your account’s leverage and the broker’s chosen margin calculation method influence the margin requirement.
- Account and currency settings: The account currency and any account-specific margin rules can change the required amount.
How it “works” conceptually:
- You open a position in a chosen forex pair.
- The broker computes the margin needed for that position using the pair’s contract details and your account’s margin rules.
- As your position value changes, your margin pressure may increase or decrease depending on the broker’s risk and margin framework.
Example checks: verifying the requirement for a pair
Since there is no universal number per pair, you can independently check the margin requirement like this:
- Use the broker’s margin calculator (if provided) for the exact pair and your account.
- Compare the same position size across pairs within the same account to see how pair-specific instrument details change the required margin.
- Change only one variable at a time (e.g., pair, lot size, or account leverage) to confirm which factor drives the change.
A practical way to interpret the results: if the broker’s documentation expresses margin as a function of leverage, then doubling position size usually implies a roughly proportional increase in required margin, while the pair’s contract specs determine the conversion and scaling.
Limitations and risks of relying on a fixed “per pair” number
- Broker variation: Different brokers may apply different margin calculation methods, even for the same forex pair.
- Account variation: Margin requirements can differ by account type and settings.
- Non-static conditions: Although the underlying contract definitions are generally stable, margin rules can be updated by brokers; you should treat any displayed margin requirement as valid for your current account conditions.
- Not real-time personalized guidance: Your actual margin requirement depends on your exact account and position details; without those inputs, any “per pair” statement would be incomplete.
- Uncertainty under market movement: Margin pressure can change as prices move, which can affect whether you can safely hold positions.
For an accurate answer to “the margin requirement for each forex pair” in your situation, you need the broker’s current margin rules for your exact account and the specific pair you trade.