CFD Overnight Financing
CFD overnight financing is the adjustment applied when an eligible position remains open beyond a broker’s daily funding cutoff. It may appear as overnight interest, a holding cost or a swap. Depending on the contract, trade direction and applicable rate, the adjustment can be a debit or a credit. CMC Markets’ holding cost explanation illustrates both outcomes.
For anyone holding trades across several sessions, financing deserves attention before entry. This guide covers its calculation, weekend charges and effect on returns. For spreads, commissions and other expenses, see the broader guide to CFD trading costs.
Financing Usually Applies to the Full Position Value
The amount used to calculate financing is commonly the full value of the CFD exposure, not just the margin deposit. The FCA’s review of CFD pricing and value highlights charges applied to the full underlying consideration without an offset for money held in the client’s account.
Suppose a cash index CFD provides $20,000 of exposure and requires $2,000 in margin. Under that charging method, financing is calculated on $20,000. It is not calculated on the $2,000 deposit, nor simply on the $18,000 difference.
This distinction explains why a modest annual funding rate can consume a much larger percentage of the margin committed. Adding cash to the account does not necessarily reduce the financing bill if the position stays the same size. Check the broker’s terms rather than treating a CFD like an ordinary loan with a deposit deducted. Our guide to CFD exposure and margin requirements explains that relationship.
How to Calculate CFD Overnight Financing
For a cash CFD charged using an annual percentage rate, the basic calculation is:
Financing charge = position value × annual funding rate × funding days ÷ annual day divisor
Position value means the units or contracts multiplied by their monetary value at the price required by the broker. Enter the annual percentage as a decimal: 8% becomes 0.08. Funding days means the days covered by the adjustment, which may be more than one.
The annual divisor is commonly 360 or 365. IG’s funding calculation guide uses different divisors across currencies and markets. Use the contract’s convention rather than automatically dividing by 365.
The valuation price matters too. CMC’s published formula uses the current midpoint at its funding time, with exceptions for closed markets. A calculation based on an unchanged opening value may therefore be only an estimate. If the position value or rate changes, calculate each funding period separately and add the results, following the broker’s valuation and currency conversion method.
A Worked Financing Example
Assume a hypothetical long cash index CFD has a $20,000 position value, a $2,000 margin requirement and an annual funding rate of 8%, including the broker’s markup. The contract uses a 365-day divisor. These are illustrative assumptions, not a current broker quote.
One funding day costs:
$20,000 × 0.08 ÷ 365 = approximately $4.38
Holding the position longer produces the following estimates, assuming its value and funding rate remain unchanged.
| Funding days | Total financing charge | Charge as a percentage of $2,000 margin |
|---|---|---|
| 1 | $4.38 | 0.22% |
| 3 | $13.15 | 0.66% |
| 7 | $30.68 | 1.53% |
| 30 | $131.51 | 6.58% |
The totals use unrounded daily amounts before rounding the final result. Broker rounding practices can produce small differences.
After 30 funding days, financing alone has consumed about 0.66% of the assumed position value. That is roughly 6.58% of the initial margin. Neither figure includes trading losses, spreads or commissions.
Long Positions and Short Positions Have Different Rates
For cash share and index CFDs, a common arrangement adds a broker markup to a reference rate for long positions. Short positions may receive a reference rate minus a broker deduction. Saxo’s explanation of CFD financing describes this distinction. Going short does not automatically mean receiving interest.
Consider a simplified hypothetical schedule with a 5% reference rate and a 3% broker adjustment. The long funding rate would be an 8% annual charge; the short side could receive 2%. If the reference rate fell to 1% with the adjustment unchanged, the short side could instead pay 2%. Actual schedules can use different buying and selling reference rates.
Short share CFDs may also carry a stock borrowing fee. Saxo’s CFD pricing terms distinguish that expense from financing and explain its relationship to share availability. A funding credit should therefore be assessed after any borrowing charge, not treated as the trade’s final holding return.
Daily Cutoffs, Weekends and Holiday Charges
“Overnight” refers to crossing the funding cutoff, not necessarily holding a trade for 24 hours. Under a cutoff-based schedule, a position opened shortly before that time can attract an adjustment even if it has been open only briefly. IG’s published cutoff rules also show that some markets have different funding times.
Check the applicable time zone and any seasonal clock changes. Do not assume the time shown on your computer, the trading platform and the broker’s fee schedule are identical.
Why One Adjustment Can Cover Three Days
Weekend financing may be collected in one larger booking. The collection day depends on the product and its settlement arrangements. For forex, CMC’s holding charge schedule shows Wednesday triple charges for many pairs and Thursday triple charges for certain others. A Wednesday rule is not universal.
A three-day booking does not mean the annual rate has tripled. It normally means three funding days are being collected together. Do not add Saturday and Sunday again when that booking already covers them.
Public holidays can alter settlement dates and the number of funding days collected. IG’s forex rollover calendar explains these changes and provides instrument-level schedules. Check the relevant calendar before a holiday period rather than assuming the usual multiplier will apply.
Why Forex and Commodity Funding Need Separate Treatment
Forex CFDs
Forex financing commonly uses the tomorrow-next, or tom-next, swap rate plus the broker’s adjustment. This reflects the funding relationship between the two currencies rather than a single reference rate. IG’s CFD charges explanation describes this method for forex and spot metals.
Use the published buying or selling swap for the exact instrument. Check whether the platform expresses it as an annual percentage, points or a monetary amount before doing the calculation. The guide to forex swap rates and overnight charges covers these conventions in more detail.
Cash Commodity CFDs
Some undated commodity CFDs derive their prices from futures contracts. Their overnight adjustment can include both a broker fee and an adjustment for the movement between those futures prices. It is not always an ordinary interest charge on the position.
IG’s explanation of undated commodity pricing separates the futures price adjustment from its administration fee. The price adjustment offsets a corresponding movement in the quoted CFD price. Assessing the cash debit alone, without that price movement, can misstate the economic cost. The same caution applies to an apparently attractive credit.
Do Futures CFDs Avoid Overnight Financing?
Some do not have a separate nightly funding charge, but this is not a universal rule. IG states that its fixed-expiry futures and forward CFD deals include funding charges within the spread.
Other arrangements differ. Saxo’s carrying cost terms for expiring CFDs describe an overnight charge based on the daily margin requirement. The word “futures” in a product name is not enough to establish that holding it costs nothing.
For a longer holding period compare the actual cash and dated contracts available to you. Request a total cost estimate covering the intended exposure and duration, including any cost of replacing an expiring position.
Even where one product removes a separate daily fee, compare the full trade rather than that single line item. A different charging structure is not automatically a cheaper one.
How Financing Changes Profit and Account Risk
Return to the hypothetical $20,000 position. Suppose it produces a $200 gross trading gain after 30 funding days, with $30 in other trading costs. Using the earlier assumptions:
$200 − $131.51 financing − $30 other costs = $38.49 net profit
The market view was profitable, but most of the gain went toward expenses. This is why a target price should be assessed alongside the expected holding period. A forecast without a time estimate leaves the funding budget unfinished.
Financing also affects the account’s capacity to support open trades. CMC’s CFD product disclosure statement requires sufficient cash to meet holding costs and describes account closure when required account-value thresholds are breached. The practical implication is that funding debits can reduce the buffer available to absorb losses.
Include expected holding costs when planning CFD position size. Funding is not a replacement for a loss allowance, and a cash buffer does not make a losing position safe. The separate guide to margin calls and stop-outs explains account thresholds.
Managing Overnight Financing Before You Trade
Build the funding estimate before placing the order. At minimum, record:
- The exact contract and whether it is cash, undated or expiring.
- The applicable long or short rate and its calculation units.
- The cutoff, annual divisor and weekend or holiday multiplier.
- Any separate borrowing, administration or currency conversion charge.
Compare providers using the same exposure, direction and holding period. As an illustrative comparison, suppose one quote costs $6 more to enter and exit but saves $2 per funding day. It becomes cheaper on those stated costs after more than three funding days, assuming nothing else changes. Comparing spreads alone would miss that difference.
Closing Before the Cutoff
Closing an eligible cash CFD before its funding cutoff can avoid that booking under the broker’s rules. However, closing and reopening should not be treated as a costless workaround. Compare any saved financing against the additional trading costs using the provider’s spread, commission and funding schedule. Whether keeping the position still makes sense should come before saving one nightly fee.
Swap-Free Accounts and Opposing Positions
A swap-free account does not necessarily provide free holding indefinitely. ThinkMarkets’ published swap-free terms, for example, describe administration fees after an initial fee-free period. Check eligibility, covered instruments and replacement charges. Our guide to Islamic and swap-free accounts covers the wider account structure.
Opening an opposite CFD also does not necessarily stop financing. The FCA’s review of matched positions found firms applying funding separately to open long and short contracts. Reducing net market exposure is not the same as closing the contracts that generate charges.
After the first funding booking, reconcile the statement against your estimate. Check the rate, valuation price, funding days and conversion amount. If the planned holding period changes, update the budget too. The useful figure is what the position may cost over the time you actually expect to keep it.