What Is the Interactive Brokers Forex Income Worksheet?
The Forex Income Worksheet is an annual tax-reporting tool provided by Interactive Brokers
(IBKR) that summarises income and loss from completed currency transactions during the tax year[reference:0].
It is not a trading statement or a performance dashboard; rather, it is a structured report designed to help
clients prepare their tax filings by showing realised gains and losses from forex activity.
According to IBKR’s tax reporting documentation, the worksheet includes income and loss data from
closed forex spot trades and closed securities trades denominated in a nonfunctional
currency[reference:2][reference:3]. It also captures nonfunctional currency transactions such as
dividends, interest, deposits, and withdrawals that affect currency balances[reference:4].
ⓘ Key takeaway: The Forex Income Worksheet is a tax-oriented report, not a real-time
trading log. It is generated annually and should be reviewed alongside your other tax documents.
How It Works & Tax Logic
The worksheet applies a specific set of rules defined by both the U.S. Internal Revenue Service (IRS) and
IBKR’s own reporting methodology. Understanding these rules is essential to interpreting the numbers
correctly.
FIFO Matching and Functional Currency
The IRS requires that forex income and loss be calculated using First In, First Out (FIFO)
matching[reference:5]. IBKR’s worksheet follows this rule. Your functional currency
is the currency of your primary economic environment—typically USD for U.S. residents. Any transaction
that changes the balance of a nonfunctional currency is treated as a forex transaction
against your functional currency[reference:6].
Trade Date vs. Settlement Date
The IRS recognises forex income and loss on a settlement date basis, but IBKR calculates
forex income and loss on a trade date basis[reference:7]. This creates timing differences
that are reconciled through adjustments shown on the worksheet. Traders should be aware that the worksheet
reflects IBKR’s trade-date calculations, not the settlement-date figures that may appear on other
tax forms.
What Transactions Are Included?
The worksheet includes any transaction that changes the balance of a nonfunctional currency[reference:8].
This covers:
- Forex spot trades (buying and selling currency pairs)
- Securities purchases and sales denominated in a nonfunctional currency
- Dividend and interest payments in nonfunctional currency
- Deposits and withdrawals in nonfunctional currency
A nonfunctional currency cross-currency trade is recognised as two trades against your
functional currency[reference:9]. The worksheet shows only closed transactions—those
that have resulted in realised income or loss[reference:10].
Key Features at a Glance
📈 Annual Income & Loss Summary
Consolidates realised gains and losses from all closed currency transactions for the tax year.
📜 Acquisition & Disposition Detail
Provides line-item detail for each nonfunctional currency transaction closed during the year[reference:13].
💳 Multi-Currency Support
Reports forex income and loss in USD for 1099-eligible clients, and in the account’s base currency for others[reference:14].
📝 Tax Form Integration
Available alongside Form 1099, Gain/Loss for 1256 contracts, and other tax reports in PDF, HTML, and Excel formats.
ⓘ Access: The worksheet is available through IBKR’s Client Portal under Tax
Reporting. It can be viewed online or downloaded for record-keeping.
Costs & Fee Structure
Interactive Brokers uses a transparent, commission-based pricing model for spot currency trading.
Unlike many retail forex brokers that embed their fees in wide spreads, IBKR charges a separate,
low commission and passes through the underlying interbank prices without mark-up[reference:17][reference:18].
Commission Schedule for Spot Currencies
| Monthly Trade Value (USD) | Commission Rate | Minimum per Order |
|---|---|---|
| ≤ 1,000,000,000 | 0.20 basis points | USD 2.00 |
| 1,000,000,000.01 – 2,000,000,000 | 0.15 basis points | USD 1.50 |
| 2,000,000,000.01 – 5,000,000,000 | 0.10 basis points | USD 1.25 |
| > 5,000,000,000 | 0.08 basis points | USD 1.00 |
Source: Interactive Brokers spot currency commission schedule[reference:19]. 1 basis point = 0.0001.
Commissions are based on monthly trade value and are converted to the account’s base currency[reference:20].
No Added Spreads or Hidden Fees
IBKR does not apply any additional spread on the prevailing FX rate for client-initiated FX conversions[reference:21].
The firm combines quotation streams from 17 of the world’s largest foreign exchange dealers,
which together constitute more than 60% of the global interbank market share[reference:22]. This results in
displayed quotes as tight as 0.1 PIP[reference:23].
⚠ Note: While IBKR’s base commissions are low, traders should review
product-specific third-party fees and disclosures. Commission rates may change and can vary by region
and client type[reference:24]. Always consult the current commissions schedule on the IBKR website.
Comparison: IBKR vs. Typical Retail Forex Brokers
| Fee Component | Interactive Brokers | Typical Retail FX Broker |
|---|---|---|
| Commission (per USD 100,000) | USD 2.00 (minimum) | Often $0 (but wider spreads) |
| Spread Mark-up | None (pass-through pricing) | Typically 0.5–1.0% or more |
| Platform Fees | None | Sometimes charged |
| Account Minimum | None | Varies |
Comparison based on publicly available information. Actual costs vary by broker and account type[reference:25].
Regulation & Compliance
Interactive Brokers operates under a robust regulatory framework. IBKR LLC is a registered
Broker-Dealer, Futures Commission Merchant (FCM), and
Forex Dealer Member, regulated by multiple U.S. authorities[reference:26].
Key Regulators
- Commodity Futures Trading Commission (CFTC) — primary federal regulator for
commodity interests, including retail forex[reference:28]. - National Futures Association (NFA) — self-regulatory organisation that enforces
compliance rules and maintains the BASIC database for background checks[reference:29]. - Securities and Exchange Commission (SEC) — regulates IBKR’s broker-dealer
activities. - Financial Industry Regulatory Authority (FINRA) — oversees securities firms
and enforces conduct rules[reference:31].
ⓘ EEAT reference: The CFTC advises retail investors to thoroughly research
any OTC forex dealer before depositing funds. Registration with the CFTC and NFA indicates that
principals have passed background checks, the firm meets financial requirements, and customers have
access to dispute resolution mechanisms such as the CFTC Reparations Program and NFA arbitration[reference:32].
You can verify a firm’s registration and disciplinary history through the NFA BASIC system at
nfa.futures.org[reference:33].
NFA Membership and Compliance
As an NFA member, IBKR is subject to ongoing compliance requirements, including monthly leverage ratio
reporting to the NFA and CFTC[reference:34]. The firm must also ensure that customer statements include
the performance disclosures required by CFTC Regulation 5.5[reference:35].
Note: In 2022, the NFA’s Business Conduct Committee issued a decision finding that
IBKR had violated NFA Compliance Rules related to the cancellation of retail customer forex orders[reference:36].
This serves as a reminder that even regulated firms can have compliance lapses, and traders should always
monitor their own account activity and statements.
Risk Checks & Controls
Trading forex carries substantial risk. The CFTC and FINRA have both issued investor alerts highlighting
the dangers of retail over-the-counter forex trading[reference:37][reference:38]. This section outlines the
key risks and the controls that Interactive Brokers provides.
⚠ Risk Warning
Forex trading is highly speculative and involves significant risk of loss.
The retail OTC forex market is opaque, volatile, and exposes customers to substantial currency risk[reference:39].
Leverage can magnify losses as well as gains. The CFTC has stated that most individual traders
lose money trading forex[reference:40]. You should never trade with funds you cannot afford to lose.
Key Risks
- Currency Volatility: Exchange rates can move rapidly and unpredictably[reference:41].
- Leverage Risk: High leverage ratios (commonly 50:1 or higher) can lead to losses
that exceed your initial deposit[reference:42]. - Counterparty Risk: In OTC forex, you trade against your dealer, not on a centralised
exchange. The dealer sets the price and acts as counterparty, creating a potential conflict of interest[reference:43]. - Liquidity Risk: During periods of market stress, liquidity can dry up, making it
difficult to exit positions at favourable prices.
IBKR Risk Controls
Interactive Brokers implements several risk management measures:
- Real-time margin monitoring: Accounts are monitored continuously, and positions
may be liquidated if margin requirements are not met. - Exposure Fee: IBKR charges a daily “Exposure Fee” to accounts deemed to have
significant risk exposure. However, this fee applies only to a small percentage of accounts with
unusually risky positions[reference:44]. - Risk-based margin: Margin requirements are calculated using a risk-based model
that considers the volatility and correlation of positions[reference:45]. - Segregation of client funds: IBKR maintains segregated accounts for customer
funds in compliance with CFTC and SEC regulations.
ⓘ Practical check: Before trading, review IBKR’s risk disclosure
statements, which are available in Account Management when you request forex trading permissions[reference:47].
Also read the CFTC’s Eight Things You Should Know Before Trading Forex advisory[reference:48].
Practical Example & Checklist
Example Scenario
Scenario: A U.S.-based trader has a functional currency of USD. During the tax year,
they execute the following transactions:
- Buy 15,000 CAD at USD/CAD = 1.50 (cost USD 10,000).
- Buy a Canadian stock for 15,000 CAD (disposes of the CAD position).
- Sell the Canadian stock for 16,000 CAD at USD/CAD = 1.45 (proceeds USD 11,034.48).
- Convert the CAD proceeds back to USD.
The Forex Income Worksheet would show the CAD acquisition (step 1) and disposition (step 2) as a
closed forex transaction. The sale of the stock (step 3) is also an acquisition of CAD, and the
final conversion closes that position. The worksheet calculates the realised gain or loss in USD
based on FIFO matching[reference:49].
Adapted from IBKR’s forex income and loss example[reference:50].
Practical Checklist
Use this checklist when reviewing your Forex Income Worksheet and preparing your tax reporting:
- Verify that your functional currency is correctly set in your IBKR account.
- Confirm that all closed forex positions for the tax year are reflected on the worksheet.
- Review the acquisition and disposition detail for each nonfunctional currency transaction.
- Check for adjustments that reconcile trade-date vs. settlement-date differences.
- Ensure that dividends, interest, deposits, and withdrawals in nonfunctional currency are included.
- Compare the worksheet totals against your own trade records for accuracy.
- Download the worksheet in PDF or Excel format for your tax records.
- Consult a qualified tax professional to determine how the worksheet data should be reported.
Common Misconceptions
⚠ Common mistakes and misunderstandings
- “The worksheet shows all my forex activity.” — No. It shows only
closed transactions that resulted in realised income or loss. Open positions are not included[reference:52]. - “IBKR’s worksheet uses the same dates as my 1099.” — Not necessarily.
IBKR uses trade-date accounting, while the IRS uses settlement-date accounting for forex[reference:53]. - “Low commissions mean low total costs.” — Commissions are only one
component. Spreads, financing costs, and exchange rates also affect your net results. - “Regulation guarantees my safety.” — Regulation provides a framework
for oversight and dispute resolution, but it does not eliminate trading risk or guarantee against losses[reference:54]. - “The worksheet is tax advice.” — It is not. The worksheet provides
data, but the interpretation and reporting of that data are your responsibility—or that of your tax advisor.
The BIS Triennial Central Bank Survey reported that global OTC FX trading reached $9.6 trillion
per day in April 2025, up 28% from 2022[reference:55][reference:56]. This enormous market size
underscores both the opportunities and the complexity of forex trading. Yet size does not equate to safety;
the CFTC has repeatedly warned that most retail traders lose money[reference:57].
Frequently Asked Questions
from your completed currency transactions for the year, including spot forex trades and securities trades
in nonfunctional currencies[reference:58].
adjustments to reconcile with the IRS settlement-date basis[reference:60][reference:61].
currencies, dividends, interest, deposits, and withdrawals—any transaction that changes a
nonfunctional currency balance[reference:62].
with volume-based tiered discounts. There are no added spreads or mark-ups[reference:63][reference:64].
Forex Dealer Member, and is a member of the NFA, SEC, and FINRA[reference:65].
counterparty risk, and liquidity risk. The CFTC and FINRA warn that retail forex trading carries
substantial risk[reference:67][reference:68].
NFA BASIC system at nfa.futures.org
and the CFTC registration check at cftc.gov/check[reference:69][reference:70].
tax advice. Traders should consult a qualified tax professional for their specific situation.