Understanding swap rates: what EU forex traders need to know before holding positions overnight
You entered a forex trade, went to bed, woke up, and your account is slightly lower — even though the market barely moved. What happened? You were charged a swap fee.
Swap (also called rollover or overnight fee) is one of the most commonly overlooked costs in forex trading. For day traders who close before 22:00 it is irrelevant. But for anyone holding positions overnight, over weekends, or for weeks at a time, swap can quietly eat into profits or amplify costs significantly.
This guide explains exactly what swap is, how it is calculated, when it applies, and how to manage it as an EU retail trader.
What's in this guide
1. What is a swap rate?
Definition: swap / rollover fee
A swap rate is an overnight interest charge (or credit) applied to a forex position held open past the daily rollover time — typically 22:00 server time (EST). It reflects the interest rate differential between the two currencies in the traded pair, adjusted by the broker's markup. Also called a rollover fee, overnight fee, or financing charge.
When you trade forex on margin, you are effectively borrowing one currency to buy another. This borrowing carries an interest cost. The swap fee is how that interest cost (or credit) is settled each day.
The calculation is based on central bank interest rates. If the eurozone ECB rate is 2.0% and the US Federal Reserve rate is 4.5%, holding a long EUR/USD position means you are earning 2.0% on euros you "own" but paying 4.5% on dollars you "borrowed" — a net cost of approximately 2.5% per year, or fractions of a pip per night.
2. How swap is calculated
The formula for swap in pips per lot per night:
In practice, you don't need to calculate this manually. Every broker publishes a swap table showing the exact overnight charge for each currency pair, in both long and short directions. Always check this table before holding a position overnight.
Example swap rates for major pairs (indicative — check your broker's live table)
| Pair | Long swap (per standard lot, per night) | Short swap (per standard lot, per night) | Note |
|---|---|---|---|
| EUR/USD | −$4.80 | +$1.20 | USD rate > EUR rate — long EUR costs |
| GBP/USD | −$2.90 | +$0.40 | Rate differential smaller |
| USD/JPY | +$3.60 | −$6.20 | USD rate > JPY rate — long USD earns |
| AUD/USD | −$3.10 | −$1.50 | Both negative: broker markup creates this |
| EUR/GBP | −$2.20 | −$0.80 | Broker markup dominant |
Indicative rates only. Actual swap rates vary by broker and change with interest rate decisions. Always check your broker's MT4/MT5 instrument specification or website swap table before trading.
Why are both long and short swaps sometimes negative?
In a perfect world, if one direction is negative the other should be positive (you're receiving the other side of the differential). In practice, brokers add a markup to both sides — meaning both long and short swaps on the same pair can be negative. This markup is how brokers profit on overnight positions. The larger the broker markup, the worse both swap rates are for the trader.
3. When swap is applied — including triple swap
Swap is applied once per calendar day, at the daily rollover time. Most brokers use 22:00 server time (EST) as the rollover cut-off. A position that is open at 22:00 incurs overnight swap for that night.
Triple swap on Wednesday night — the most misunderstood rule in forex
The forex market settles trades two business days later (T+2). Since the market is closed on Saturday and Sunday, positions are still open over the weekend. To account for the two extra days of interest (Saturday and Sunday), brokers apply three times the normal swap on Wednesday night. If you hold a position from Wednesday close through Thursday open, you are charged (or credited) three days of swap at once. This catches many beginner traders by surprise.
Weekly swap schedule
| Night | Swap applied | Days covered |
|---|---|---|
| Sunday → Monday | 1× | Sunday only |
| Monday → Tuesday | 1× | Monday |
| Tuesday → Wednesday | 1× | Tuesday |
| Wednesday → Thursday | 3× | Wednesday + Saturday + Sunday |
| Thursday → Friday | 1× | Thursday |
| Friday → Saturday | 0× | Market closed — no positions opened |
4. Worked examples
Example 1 — Day trader (no swap)
Maria trades EUR/USD. She opens a buy trade at 09:30 and closes at 17:00. Rollover is at 22:00. Her trade was never open at 22:00. Swap cost: €0.
Example 2 — Swing trader (5 nights, no Wednesday)
Carlos holds 0.5 lots of EUR/USD long for 5 nights (Monday to Saturday). The long swap is −$4.80 per standard lot per night. His lot is 0.5.
- Nightly cost: 0.5 × $4.80 = $2.40
- 5 nights (Mon/Tue/Sun/Mon/Tue) = 5 × $2.40 = $12.00 total swap
Example 3 — Wednesday hold (triple swap)
Same position — Carlos happens to hold through Wednesday night.
- Wed night: 3 × $2.40 = $7.20 (triple swap)
- Other 4 nights: 4 × $2.40 = $9.60
- Total: $16.80 — $4.80 more than without Wednesday hold
Example 4 — Long-term position (30 nights)
Aisha holds 1 lot EUR/USD long for 30 nights. EUR/USD long swap: −$4.80/night. Four Wednesdays = 4 extra nights charged (4 × $4.80 = $19.20 extra).
- Base: 30 × $4.80 = $144.00
- Wednesday adjustment: +$19.20 (already included in triple swap applied on Wed)
- Total swap: ~$163.20 — roughly $163 eroded from her position
Key takeaway for position traders
Long-term positions can accumulate significant swap costs. A 1-lot EUR/USD long position costs approximately $144–$168/month in swap at current rate differentials. For a position targeting a 200-pip profit ($2,000 on 1 lot), that's ~8% of the target profit consumed by swap. Always factor swap into your overall trade plan.
5. When swap can be positive — carry trading
Swap works in your favour when you are long the currency with the higher interest rate in the pair. The most well-known example historically: AUD/JPY and NZD/JPY — borrowing Japanese yen (near-zero rates for decades) to buy Australian or New Zealand dollars (higher rates).
A carry trade strategy is specifically built around earning positive swap. The risk: currency moves (driven by risk-off sentiment, BOJ interventions, or rate changes) can rapidly exceed accumulated swap income. The 2008 carry trade unwind was one of the sharpest currency moves in modern history.
For EU retail traders exploring positive swap pairs: always check the current swap table — rates change with every central bank decision. A pair that was positive-carry last year may now be negative.
6. Five ways to manage swap costs
Close before rollover — the zero-cost option
Day traders who close all positions before 22:00 server time pay zero swap, regardless of account type. The cost is re-entering the trade the next morning and paying the spread again. For active traders, this is often cheaper than accumulating swap overnight.
Use a swap-free account
Available at most major EU brokers including Exness and AvaTrade. No swap charges but check for administration fees after 3–7 days of holding. Useful for multi-day swing trades but verify the fee structure first.
Avoid holding through Wednesday
If your trade plan allows it, close positions before Wednesday 22:00 and reopen Thursday morning. This avoids the triple swap. You pay the spread twice but save the equivalent of two extra nights of swap charge.
Check swap before choosing direction
If two trade setups look equally valid, choose the direction with the lower (or positive) swap. For EUR/USD, short positions typically have a lower or positive swap at current rate differentials. This is a minor edge but worth noting on longer holds.
Compare brokers' swap rates before opening an account
Swap rates vary significantly between brokers — the same EUR/USD long position can cost $3.50/night at one broker and $6.20/night at another. If you are a swing or position trader, this difference compounds into a meaningful cost over months. Check and compare swap tables across your broker shortlist before committing.
7. Swap-free (Islamic) accounts explained
A swap-free account replaces the daily swap charge with an alternative fee structure — originally designed for Muslim traders observing the prohibition on riba (interest). Many EU brokers now offer swap-free accounts to all clients regardless of religion.
Important: swap-free ≠ always free
Most brokers allow a grace period (typically 3–7 days) with no charges. After that, they apply a flat "administration fee" per lot per day. For short trades (1–3 days), a swap-free account is often cheaper. For very long positions (30+ days), the admin fee may exceed what regular swap would have cost. Always read the broker's specific swap-free terms before assuming it is the cheaper option.
How to request a swap-free account:
- Exness: Available via account settings in your Exness Personal Area. Select "Swap-free" when creating a new trading account.
- AvaTrade: Request via support or during account opening. Select Islamic account type on the application form.
8. EU regulatory requirements on swap disclosure
Under MiFID II, all EU-regulated brokers are required to disclose the full cost of trading — including overnight financing (swap) charges — before a client executes a trade. This information must appear in:
- The broker's Key Information Document (KID) for each instrument
- The instrument's trading specification page (MT4/MT5 or website)
- Any marketing materials that reference cost of trading
If a broker is not clearly disclosing swap rates for all instruments, this is a MiFID II compliance issue. EU traders have the right to request a full cost breakdown from any CySEC or EU-regulated broker before trading.
9. EU-regulated brokers with transparent swap rates
Exness — CySEC 178/12
Full swap tables published on website per instrument. Swap-free accounts available to all clients. Swap calculator in trading terminal. Competitive markup rates vs interbank. No minimum deposit on Standard account.
Open account →74–89% of retail CFD accounts lose money.
AvaTrade — CySEC 347/17
Full instrument specifications including swap rates published on website. Islamic (swap-free) accounts available. AvaTradeGO app shows real-time swap info. Regulated in 6 jurisdictions. Minimum deposit €100.
Open account →71% of retail CFD accounts lose money.