What Is Cost of Carry in CFD Trading? Fees Explained
In this article
Cost of carry is the total net financial expense of holding a trading position overnight, consisting primarily of benchmark interest rates, broker financing markups, and dividend adjustments. In CFD trading, these charges accrue daily as overnight swaps and directly reduce net account equity on multi-day positions.
If you're asking what does cost of carry mean for your own trades, the short answer is: it's the daily price of keeping leveraged exposure open overnight.
Cost of carry is the total financial cost of holding an asset or keeping a trading position open over a given period. It can include interest, financing charges and dividend adjustments. In short-term trading, the length of time you keep a position open directly affects your overall costs. For swing traders who hold contracts for difference over several days, overnight financing charges are usually the main cost of carry and can accumulate for as long as the position remains open.
Quick Takeaways
- Cost of carry measures the net financial cost of maintaining an open position overnight.
- In CFD trading, cost of carry is mainly influenced by central bank interest rates and the broker's financing markup.
- Daily financing charges can accumulate over time and may turn a gross trading gain into a net loss during longer holding periods.
- Dividend adjustments and interest rate differentials can either increase holding costs or partially offset them.
Cost of Carry Explained: Core Components for CFD Traders
The cost of carry meaning originates from traditional financial markets, where holding a physical asset involves expenses such as storage, insurance and interest on borrowed capital. In cash markets, physical commodities such as oil or gold require secure storage, creating a positive carrying cost that can increase the overall price of futures contracts relative to spot prices.
In derivative markets, physical storage costs are replaced largely by financing costs. When you hold a leveraged contract for difference overnight, you are effectively borrowing capital from your broker to maintain exposure to the underlying asset. As a result, the cost of carry in CFD trading mainly takes the form of daily swap rates or overnight financing charges.
Understanding these costs matters because gross trading profit is not the same as net profit. A position may move in your favour, but daily holding charges can gradually reduce those gains and alter the true risk-to-reward profile of a multi-day trade.
How Cost of Carry Works in Practice
When traders ask what is cost of carry in the context of daily swap charges, the answer lies in the benchmark rate plus the broker's markup.
Overnight financing charges accrue for each day a leveraged position remains open beyond the daily market cut-off, typically 22:00 GMT. Broker financing fees are based on benchmark interbank interest rates, such as SOFR for US dollars or SONIA for British pounds. Brokers then add an administrative markup, typically around 2.5% to 3.0% a year, to these benchmark rates.
Long Position Fee = Benchmark Rate + Broker Markup
Short Position Fee = Benchmark Rate - Broker Markup
- Long Positions: Buying a leveraged CFD involves financing the full value of the position. You pay the benchmark interest rate plus the broker's markup, resulting in a daily debit to your account.
- Short Positions: Selling a CFD can involve receiving interest on the cash value of the underlying asset while paying the broker's markup. If the benchmark interest rate is lower than the broker's markup, a short position may also incur a daily financing debit.
- Weekend Rollovers: Markets are closed at weekends, but holding costs can still apply. Most brokers charge a "triple swap" on Wednesday evenings to cover financing for Saturday and Sunday.
Dividend adjustments can also affect carrying costs on equity index CFDs. If an underlying share pays a dividend, holders of long positions receive a dividend credit, while holders of short positions receive a dividend debit.
Calculating Cost of Carry in CFD Trading
Calculating the daily cost of carry can help you assess whether a swing trade remains viable over a longer holding period. Daily financing costs depend on the total contract size, prevailing benchmark interest rates, broker markups and the asset's tick value.
Daily Swap Charge = (Position Size × (Benchmark Rate + Broker Markup)) / 365
For example, consider a long equity index CFD valued at $10,000, where the benchmark rate is 5.0% and the broker markup is 2.5%.
- Total Annual Charge Rate: 5.0% + 2.5% = 7.5%
- Annual Cost: $10,000 × 7.5% = $750
- Daily Cost of Carry: $750 ÷ 365 = $2.05 per day
Holding this $10,000 position for 14 calendar days results in a total carrying cost of $28.70. If the trade produces a total price gain of only $30.00, the net gain falls to just $1.30 after carrying costs are deducted.
The Impact of Cost of Carry on Swing Trading
Ultimately, what is cost of carry comes down to a simple daily trade-off between the benefit of holding your position and the financing charge attached to it.
For day traders who open and close positions within the same trading session, cost of carry is zero because their trades do not remain open beyond the overnight cut-off. Swing traders and position traders, however, may hold contracts for several days or weeks and therefore face ongoing financing charges.
In practice, many traders monitor technical charts carefully but overlook how daily financing charges can gradually reduce the expected risk-to-reward ratio of multi-day trend trades.
Leverage allows market participants to open larger market positions with a relatively small initial deposit. However, daily carrying costs are calculated on the full leveraged value of the position rather than only on the margin deposited.
According to the FCA's most recent published figures (2026), around 70–80% of retail CFD accounts lose money, with losses potentially worsened when positions are held longer than planned without accounting for the cumulative effect of daily financing charges. Leverage can increase both potential profits and losses, while overnight financing charges continue to affect your account balance regardless of how the market moves.
Conclusion
To understand what is cost of carry in practice, it helps to break the daily charge down into its two main components: the benchmark rate and the broker's markup.
Cost of carry is the daily financial cost of keeping leveraged market exposure open beyond the daily market cut-off. Although individual swap charges may appear small, they can accumulate into significant trading costs when a position remains open for several weeks.
Before entering a swing trade, consider both your target price levels and how long you expect to hold the position. Including daily financing charges in your wider assessment of trading costs helps ensure that potential profit targets account for the cumulative effect of holding fees. Trading CFDs always involves the risk of losing money, potentially more quickly because of leverage. Treat this article as an educational starting point for your own analysis, not as financial advice.
FAQ
What is the cost of carry formula in CFD trading?
Daily cost of carry is calculated as (Position Size × (Benchmark Interest Rate + Broker Markup)) / 365. For dividend-paying equity CFDs, dividend adjustments and borrow fees are also added or subtracted depending on whether you hold a long or short position.
Is cost of carry positive or negative?
Cost of carry is usually negative for long leveraged positions, resulting in a daily fee debit. However, short positions or currency pairs with positive interest rate differentials can occasionally yield a positive carry, resulting in a daily interest credit.
How does cost of carry affect swing traders?
Swing traders holding positions over multiple days or weeks face continuous daily financing debits. Over time, these cumulative charges compound, which can erode profit margins or turn a winning price move into a net trade loss.
What is triple swap Wednesday in CFD trading?
Because spot forex and CFD markets settle on a T+2 basis, brokers charge three days' worth of overnight financing on Wednesday evenings to cover interest accrued over Saturday and Sunday when markets are closed.
What is the difference between cost of carry in futures vs CFDs?
Futures contracts embed holding costs directly into their forward pricing structure, meaning the contract price naturally converges with the spot price as expiration approaches. CFDs adjust for holding costs via explicit daily account debits or credits while keeping trade prices tied directly to the spot market.
