CommCurrency (FIX tag 479)

CurrencyFIX 4.4FIX 5.0 SP2

CommCurrency (tag 479) is a Currency field defined in FIX 4.4 and FIX 5.0 SP2. It appears in 13 message types, always optionally.

At a glance

Tag: 479
Name: CommCurrency
Datatype: Currency (String)
Dialects: FIX 4.4 and FIX 5.0 SP2
Messages: 13

What the specification says

FIX 4.4

Specifies currency to be used for Commission (2) if the Commission currency is different from the Deal Currency - see "Appendix 6-A; Valid Currency Codes".

FIX 5.0 SP2

Specifies currency to be used for Commission(12) if the commission currency is different from the deal currency.

Descriptions are quoted from the FIX Orchestra sources under the Apache 2.0 licence.

A real message using tag 479

NewOrderSingle · FIX 4.4

Tag	Field	Wire value	Meaning
8	BeginString	FIX.4.4
9	BodyLength	119
35	MsgType	D	Order – Single
49	SenderCompID	BOARTEAM
56	TargetCompID	COUNTERPARTY
34	MsgSeqNum	2
52	SendingTime	20240101-12:00:00.000
11	ClOrdID	ORD-10042
54	Side	1	Buy
60	TransactTime	20240101-12:00:00.000
40	OrdType	1	Market
479	CommCurrency	EUR
10	CheckSum	198

Edit and decode it yourself

Shown with | separators for readability. On the wire FIX uses SOH (0x01), an invisible control byte — and because BodyLength and CheckSum are computed over the actual bytes, the two forms have different checksums. Both are valid and both decode here.

Open in the full decoder →

Generated from the FIX 4.4 dictionary and verified at build time: it parses and validates with no issues. Open the decoder to try your own message.

Where tag 479 appears

Requiredness is a property of the message, not of the field: the same tag can be optional in one message and conditionally required in another.

Message	MsgType	FIX 4.4	FIX 5.0 SP2	Where in the message
AllocationInstruction	J	Optional	Optional	inside AllocGrp › CommissionData
AllocationInstructionAlert	BM	—	Optional	inside AllocGrp › CommissionData
AllocationReport	AS	Optional	Optional	inside AllocGrp › CommissionData
BidResponse	l	Optional	Optional	inside BidCompRspGrp › CommissionData
Confirmation	AK	Optional	Optional	inside the CommissionData component
CrossOrderCancelReplaceRequest	t	Optional	Optional	inside SideCrossOrdModGrp › CommissionData
ExecutionReport	8	Optional	Optional	inside the CommissionData component
MultilegOrderCancelReplace	AC	Optional	Optional	inside the CommissionData component
NewOrderCross	s	Optional	Optional	inside SideCrossOrdModGrp › CommissionData
NewOrderList	E	Optional	Optional	inside ListOrdGrp › CommissionData
NewOrderMultileg	AB	Optional	Optional	inside the CommissionData component
NewOrderSingle	D	Optional	Optional	inside the CommissionData component
OrderCancelReplaceRequest	G	Optional	Optional	inside the CommissionData component
TradeCaptureReport	AE	Optional	Optional	inside TrdCapRptSideGrp › CommissionData
TradeCaptureReportAck	AR	—	Optional	inside TrdCapRptAckSideGrp › CommissionData

Wire format

A three-letter ISO 4217 code. @boarteam/fix keeps the value as a string; format rules are checked by validate(), which reports validate/invalid-value rather than throwing.

Read tag 479 in TypeScript

decode.tsts

import { createFixEngine } from "@boarteam/fix";import { dictionary } from "@boarteam/fix-dict-fix44";const fix = createFixEngine(dictionary);const { message, issues } = fix.parse(raw);const field = message.fields[479];field?.name;   // "CommCurrency"field?.raw;    // the verbatim wire stringfield?.value;  // coerced to a string

Decode this in your own code

The same engine that produced the decoded example above is an Apache-2.0 npm package with zero runtime dependencies. It runs in Node and in the browser, and parse() returns problems as data instead of throwing.

npm i @boarteam/fix @boarteam/fix-dict-fix44

Try the decoder Source on GitHub