Forex Swap Rates Explained for Beginners

Swaps are the hidden cost (or hidden income) in forex trading. Most traders ignore them. Then they wonder why their P&L doesn’t match their pip count.

A 50-pip win should be $500 (on 0.1 micro lot). But you only made $450. Where did $50 go? Swaps.

Understand swaps and you’ll see your true trading costs. Better yet, you can use swaps to your advantage—earning extra income from positions held overnight.

What Is a Swap?

A swap is the interest cost or credit you pay/receive when holding a forex position overnight.

Here’s why it exists: When you buy EURUSD, you’re buying euros and selling US dollars. The euro has an interest rate (set by the ECB). The US dollar has an interest rate (set by the Fed). The difference between those rates creates a cost or credit.

If EUR interest rate is 4% and USD interest rate is 5.25%:

• You’re holding 4% (long EUR) and not holding 5.25% (short USD)
• You’re losing 1.25% annualized
• That converts to a daily swap charge

If GBP interest rate is 5% and USD interest rate is 5.25%:

• You’re holding 5% (long GBP) and not holding 5.25% (short USD)
• You’re losing 0.25% annualized
• Smaller swap charge

If MXN interest rate is 9% and USD interest rate is 5.25%:

• You’re holding 9% (long MXN) and not holding 5.25% (short USD)
• You’re earning 3.75% annualized
• Positive swap (credit to your account)

How Swaps Are Calculated

The formula: Swap = (Interest Rate Difference × 365 days) ÷ Lot Size ÷ Daily Rate

But don’t memorize it. Your broker calculates it automatically. You just need to know:

Swap = Daily Interest Cost Based on the Interest Rate Difference of Two Currencies

Most forex brokers publish their swap rates. For example, EURUSD might have:

• Buy (long) swap: -0.30 pips/day
• Sell (short) swap: +0.15 pips/day

This means:

• If you go long 1 micro lot of EURUSD, you pay 0.30 pips/day in swap
• If you go short 1 micro lot of EURUSD, you earn 0.15 pips/day in swap

Over 10 days holding a long position, you pay 3 pips in swap. That’s $0.30 per micro lot. Small for retail. But it adds up.

When Swaps Are Charged

Swaps are charged at 5 PM EST (22:00 UTC). This is the daily reset time in forex.

If you:

• Open and close a trade on the same day (before 5 PM EST): No swap
• Hold a trade past 5 PM EST: You pay/receive one day of swap
• Roll a trade into the next day: You pay/receive swap daily

Note on Fridays: Swaps are charged triple on Friday because you’re holding the position through the weekend (Friday, Saturday, Sunday). So Friday night you might pay 3x the normal swap.

Some brokers charge Friday’s triple swap on Thursday, depending on their rules. Check your broker.

Which Pairs Have Positive vs Negative Swaps

Interest rates by currency (approximate, as of 2026):

Currency	Interest Rate	Notes
USD	5.25%	FED funds rate
GBP	5.00%	Bank of England
EUR	4.00%	ECB
AUD	4.35%	RBA
NZD	4.75%	RBNZ
CAD	4.25%	BOC
JPY	0.25%	BOJ (very low)
MXN	9.00%	BANXICO (high)
ZAR	8.25%	SARB (high)
BRL	10.50%	BCB (very high)

High positive swap pairs (you earn):

• USDJPY: Long USD vs short JPY. You earn swap (large difference)
• USDMXN: Long USD vs short MXN. You earn swap (but smaller)
• NZDJPY: Long NZD (4.75%) vs short JPY (0.25%). You earn significant swap
• GBPJPY: Long GBP (5%) vs short JPY (0.25%). You earn significant swap

High negative swap pairs (you pay):

• EURUSD: Long EUR (4%) vs short USD (5.25%). You pay swap
• EURGBP: Long EUR (4%) vs short GBP (5%). You pay swap
• USDJPY long: Long USD (5.25%) vs short JPY (0.25%). Wait, this should be positive… Let me recalculate. You’re long USD and short JPY. You hold 5.25% and don’t hold 0.25%. You earn. Yes, positive.

The key: Pair with the higher interest rate goes on the left. If you’re long the left currency, you earn. If you’re short it, you pay.

Using Swaps to Your Advantage

Strategy 1: Carry Trade

Buy a high-interest currency vs a low-interest currency and hold for the swap.

Example: Go long GBPJPY. GBP earns 5%, JPY costs near 0%. Hold it for 20 days and earn ~25+ pips in swap (depending on lot size).

Risk: Currency can move against you. You might earn 25 pips in swap but lose 100 pips to price movement. Net loss.

Mitigation: Only hold if you’re also confident in the direction.

Strategy 2: Enter High-Swap Pairs on Longer Timeframes

If you’re planning a swing trade (3-10 days), favor pairs with positive swap. You earn money while sleeping.

Example: You expect NZDJPY to trend up. Go long. You make pips from price movement + earn swap. Win-win.

Strategy 3: Avoid Negative Swap on Scalps

If you’re scalping EURUSD for 10 pips, don’t leave the position open overnight. The 1-3 pips of swap will eat your profits.

Close before 5 PM EST if holding overnight doesn’t fit your strategy.

Swaps in Your Trading Journal

When you log your trades, include swap impact:

• Trade P&L: 50 pips = $500
• Swap cost: -3 pips = -$30
• Net P&L: $470

Over 100 trades, if you’re paying consistent negative swaps, you’ll see how much it’s costing you. Then you can adjust:

1. Favor high-swap pairs for hold trades
2. Close before 5 PM EST on negative-swap pairs
3. Use swaps as a filter (avoid trading pairs with bad swaps for your thesis)

The Swap Surprise

Many traders discover swaps the hard way: They take a 50-pip winning trade and check their P&L. The win is smaller than expected because of swap drag. Or they take a losing trade and notice the loss is bigger because they paid swap on top of the pip loss.

Once you see the impact in your journal, you start accounting for it. High-swap pairs are less attractive (unless the trend is strong). Low/positive-swap pairs become more attractive.

Common Mistakes

Mistake 1: Ignoring swaps on carry trades.

You buy NZDJPY expecting to hold 10 days and earn 30 pips of swap. The currency doesn’t move. You made $30 in swap. Great. But you also paid $5 in fees. Net $25. That’s a 0.25% return—not worth the risk.

Mistake 2: Holding a negative-swap trade expecting the pips to offset.

You’re long EURUSD (negative swap). You’re paying 1 pip/day to hold it. You’re down 20 pips. You hold hoping it comes back. 5 days later, you’ve paid 5 pips in swap, now down 25. You exit.

The swap made your loss worse. If the pair was positive-swap, holding longer would’ve helped.

Mistake 3: Closing a profitable trade right before 5 PM to avoid swap.

You have a 30-pip winner at 4:50 PM EST. You close it to “avoid the swap.” You would’ve earned 0.5 pips in swap if you held. So you close up 30 pips instead of 30.5 pips. The cost-benefit doesn’t justify the extra transaction.

Only close early if you’re genuinely concerned about overnight risk.

Bottom Line

Swaps are a cost or income source that most traders ignore. High-interest-rate pairs (like GBPJPY, NZDJPY) can earn you pips just for holding. Low/negative pairs (like EURUSD, GBPUSD) cost you pips daily.

Build this into your trade planning. On long holds, favor high-swap pairs. On scalps, close before 5 PM or use tight stops to avoid the overnight hit.

Track your swap costs in your trading journal. Over time, you’ll see which pairs’ swaps help or hurt your edge most.