Overnight swap and swap-free accounts

A swap is not a single number that appears on every broker's page. It is built from two interest rates, one for each currency in the pair. For USD/INR, that means the rate attached to the US dollar and the rate attached to the Indian rupee. The broker takes the difference, adds a markup, and that becomes the daily charge. Two brokers can quote the same pair and still show different swap figures because their markups differ. The charge is usually expressed in pips, points, or a percentage, and the method matters as much as the number itself.

Timing is the second variable. Most brokers apply the swap at a fixed cut-off, often linked to the close of the New York session. A position opened at 4pm and closed at 5pm may cross that cut-off and be charged one night. A position opened and closed within the same hour may not. Some brokers charge at the moment you open the trade, regardless of how long you hold it. The practical effect is that two identical trades can carry different swap totals depending on when they were placed, not just how long they were held.

Rounding is the third variable that rarely appears in marketing material. A broker may round the swap to the nearest whole pip, to the nearest tenth of a pip, or to the nearest rupee. On a single night the difference is small. Over twenty nights it becomes a real amount. Some brokers also apply a triple charge on one day of the week to account for the weekend, when the market is closed but the position is still open. The day varies between brokers. None of this is hidden, but it is usually in a schedule rather than on the front page.

A swap-free account does not remove the cost of holding a leveraged position. It moves the cost to a different line. The most common replacement is a fixed administration fee charged per night, per lot. Another common replacement is a wider spread, so you pay more at entry and exit instead of paying each night. A third version is a flat monthly or quarterly account fee, which is unrelated to how many nights you hold. The label swap-free describes what is absent, not what the total cost will be.

The replacement charge can be larger or smaller than the swap it replaces, depending on how long you hold. A fixed nightly fee is predictable, which suits a position held for a known number of nights. A wider spread is paid once, which suits a position held for a long time, because the spread cost does not grow with each night. A flat monthly fee suits frequent trading, because it does not scale with volume. The right choice depends on your holding period, not on the word free.

There is also a practical limit on swap-free accounts at some brokers. They may restrict the account to certain instruments, cap the number of nights before a fee starts, or convert the account to a standard one if you hold too long. These conditions vary between brokers and can change. The only reliable source is the broker's own schedule, read before you open the position, not after the first charge appears.

Suppose a standard account charges 3 pips per night on one standard lot of USD/INR. One pip is ₹10, so the nightly charge is 3 x ₹10 = ₹30. Over four nights the total is 4 x ₹30 = ₹120. Now suppose a swap-free account charges a flat ₹50 per night. Over the same four nights the total is 4 x ₹50 = ₹200. The swap-free account costs ₹80 more. The word free did not make it cheaper.

Change the holding period and the answer can change. At ₹30 per night, the standard account costs ₹30 x 10 = ₹300 over ten nights. At ₹50 per night, the swap-free account costs ₹50 x 10 = ₹500. The gap widens because the swap-free charge is higher per night. If the swap-free account instead used a wider spread of 2 pips, that is a one-time ₹20 cost, and over ten nights the total would be ₹20, which is less than ₹300. The structure of the replacement charge decides the outcome.

The comparison only works if you use the broker's actual figures. Spreads, swap rates, and administration fees change with market conditions and with the broker's own policy. A calculation done today may not hold next month. Write down the three numbers you need: the nightly swap or nightly fee, the spread difference, and any flat account charge. Multiply each by your expected holding period. The smallest total is the cheaper account for that trade, regardless of which one carries the word free.