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What Is a Swap in Forex? Fees, Timing, Triple Swap
A swap in forex is the overnight interest differential between the pair's currencies, charged when a position stays open past the daily rollover (5:00pm ET at FOREX.com) (BabyPips, retrieved 2026-10-13). It can be a debit or a credit, at FOREX.com no rollover interest is paid or received on intraday trades, and Wednesday swaps are triple because they cover the weekend.
This article is for information only and is not investment, financial, or tax advice.
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The quotable number. At FOREX.com, a position held through Wednesday 5:00pm ET posts 3 days of rollover interest in one posting, as a debit or a credit, covering the weekend days in a single line.
Ordane aggregate (own calculation, method declared). Combining the timing rules stated in this article (daily rollover at 5:00pm ET, intraday trades pay nothing at FOREX.com, Wednesday posting covers three days), a position held for one full week, Monday 5:00pm ET to the following Monday 5:00pm ET, settles 7 days of swap interest in 5 rollover postings: 4 daily postings of 1 day, plus 1 Wednesday posting of 3 days. Source: aggregation of the timing figures stated in this article; no external data added.
The verbatim basis of the intraday exemption. FOREX.com's rollover FAQ states "no interest is paid or received if you open and close a position within the same trading day" (FOREX.com, retrieved 2026-10-13).
Here is the complete mechanism and the exact timing.
What Is a Swap in Forex? (Definition-First)
A swap, also known as "rollover fee", is the interest rate differential between the two currencies of the pair you are trading, charged when you keep a position open overnight. That single sentence is the whole definition.
Paid or earned: how the broker debits or credits your balance. When positions are rolled over, this results in either interest being paid or earned by the trader; your forex broker calculates the fee for you and will either debit or credit your account balance (BabyPips, retrieved 2026-10-13). The swap is a visible line on your account statement, arriving at the broker's published rollover time.
Swap = the interest rate differential between the two currencies of your pair. Every currency pair involves borrowing one currency to buy another. Since the two currencies carry different interest rates set by their central banks, holding the pair overnight creates an interest difference, and that difference settles on your account, not in the market.
Why swaps exist: Tom-Next. A position left open at the close of the business day is rolled over to the next value date to avoid delivery of the currency. The procedure is known as Tomorrow-Next, or "Tom-Next", which stands for "Tomorrow and the next day". The swap is the interest settlement attached to that daily roll.
Which Hidden Swap Rule Can Catch You Out?
The two hidden rules that surprise traders most are the Wednesday triple posting and the exact boundary of the intraday exemption. Both are published mechanics at FOREX.com, not broker discretion there: other brokers may apply rollover differently, even continuously.
Wednesday triple swap. Positions held over the weekend carry triple swap: at FOREX.com, rollovers for weekend positions are posted on Wednesday, as is standard in the industry, so the rollover applied on Wednesday will be for three days of rollover interest. A trader who opens a swing position on Wednesday and checks the account on Thursday sees a charge three times larger than expected: the weekend days settling at once.
The intraday exemption. At FOREX.com, no interest is paid or received if you open and close a position within the same trading day, after 5pm ET and before 5pm ET the following day; other brokers may apply rollovers on a continuous, second-by-second basis, so confirm your broker's policy. Both boundaries matter: the trading day starts at 5:00pm ET, not midnight, so a position opened at 6:00pm ET Monday and closed at 4:00pm ET Tuesday pays nothing, but hold it past 5:00pm ET Tuesday and the swap posts.
How to check a pair's swap rate before you hold overnight. Brokers publish swap rates per pair per lot in their platform specifications; read them before any overnight hold, because the sign depends on direction and the current differential.
| Hold window | Swap outcome |
|---|---|
| Close before 5:00pm ET | No swap posted at FOREX.com: intraday exemption applies |
| Hold past 5:00pm ET | Swap debited or credited at rollover (FOREX.com, retrieved 2026-10-13) |
| Hold through Wednesday 5:00pm ET | Triple swap covering the weekend |
The decision rule at FOREX.com carries both halves of the condition: open after 5:00pm ET and close before 5:00pm ET the following day, within the same trading day, and no interest is paid or received; closing before 5:00pm ET alone does not erase rollover already incurred. Verify your broker's rollover policy, because some apply rollover continuously.
Why Swap Matters on a Prop Firm Account You Hold Overnight
Swap matters on prop firm accounts whose broker passes the fee through, as a recurring cost that erodes the profit target on multi-day holds. Not every firm does. Ordane charges no commission, no spread and no swap. The account fee is the only cost the trader pays. The reason is structural, not promotional: accounts run on simulated capital, so no order is routed to an exchange and nothing is financed overnight, which means neither line has an underlying bill behind it. (Ordane, trading specification, retrieved October 2026). Where swap applies, each rollover adds a debit or credit to the balance the firm measures. A swing strategy that looks profitable on paper can fail its target math once overnight swap is included.
The mechanism is documented by the sources cited above, so the rules are checkable before you pay any firm. What varies is whether the firm's broker passes swaps through and whether holding overnight is allowed at all. For that, read the overnight and weekend holding rules on prop accounts, see how overnight swap fits among other hidden fees on prop firm accounts, and check how the evaluation profit target works, since recurring costs decide multi-day holds.
Is the Swap a Real Charge on Your Account? Proof It Debits or Credits?
Yes: the swap is a mechanical debit or credit posted directly to your balance at rollover, not a discretionary fee.
The broker calculates and posts it. As cited above, when positions are rolled over, interest is either paid or earned, and the broker posts the line itself. Verify it on your own statement: look for the swap line on any night you held a position.
When the rollover happens. At FOREX.com, rollovers are processed daily at 5:00pm ET, at which time any open positions will be rolled and a debit or credit applied to your account. That 5:00pm ET is this broker's published time; other brokers may use a different server time.
Positive vs negative swap. As a general tendency, holding the currency with the higher interest rate against the lower one tends to produce a credit, and reversing the direction tends to produce a debit. This is a tendency, not a guarantee: market spreads and broker markups can mean rollover charges on both sides of a trade, and rates are periodically adjusted, so check the published swap rate for your pair and direction.
| Scenario | When it posts | Effect on balance |
|---|---|---|
| Intraday close (after 5pm ET open, before 5pm ET next day) | Never | No swap |
| Overnight hold past 5:00pm ET | Daily at 5:00pm ET | Debit or credit |
| Held through Wednesday 5:00pm ET | Wednesday | Triple debit or credit |
When Is a Swap Actually a Strategy? The Carry Trade, and What It Costs You
A swap becomes a strategy when you hold a position primarily to collect the interest differential itself, and that is the carry trade.
How the carry trade works. Carry trade is a widely-used trading strategy that involves borrowing in a low-interest-rate currency and investing in a high-interest-rate currency to profit from the interest rate differentials (BabyPips, retrieved 2026-10-13). The classic example is selling the yen to buy the Australian or New Zealand dollar: funding the position with the low-rate currency and collecting swap credits on the high-rate one, night after night.
What it costs you. The carry trade ties up capital while you hold, and rollovers post against you if the differential moves or the direction is reversed. The Wednesday triple rule applies to carry positions too: a weekend hold posts three days of interest at once.
Frequently Asked Questions
Direct answers on how forex swaps are charged, credited, and avoided.
What is a swap in forex?
A swap, also known as "rollover fee", is charged when you keep a position open overnight; it is the interest rate differential between the two currencies of the pair you are trading. Source: Swap Definition | Forexpedia by BabyPips.com.
When is the forex swap charged?
At FOREX.com, rollovers are processed daily at 5:00pm ET, at which time any open positions will be rolled and a debit or credit applied to your account; other brokers may use a different server time. Source: Trading Rollover FAQs - Help and Support - FOREX.com US.
Do I pay swap on intraday trades?
No. At FOREX.com, no interest is paid or received if you open and close a position within the same trading day after 5pm ET and before 5pm ET the following day; other brokers may apply rollovers continuously. Source: Trading Rollover FAQs - Help and Support - FOREX.com US.
Why is Wednesday's swap triple?
Rollovers for positions held over the weekend are posted on Wednesday, as is standard in the industry, so the Wednesday rollover covers three days of rollover interest. Source: Trading Rollover FAQs - Help and Support - FOREX.com US.
Can I earn swap instead of paying it?
Yes. When positions are rolled over, interest is either paid or earned, and the carry trade specifically profits by borrowing in a low-interest-rate currency and investing in a high-interest-rate currency. Source: Swap Definition | Forexpedia by BabyPips.com.
Sources
- Swap Definition | Forexpedia by BabyPips.com babypips.com Retrieved 2026-10-13.
- How To Trade Forex | BabyPips.com babypips.com Retrieved 2026-10-13.
- Trading Rollover FAQs - Help and Support - FOREX.com US forex.com Retrieved 2026-10-13.
- Carry Trade | Forexpedia by BabyPips.com babypips.com Retrieved 2026-10-13.