DateOfBirth (FIX tag 486)

LocalMktDateFIX 4.4

DateOfBirth (tag 486) is a LocalMktDate field defined in FIX 4.4. It appears in 1 message type, always optionally.

At a glance

Tag: 486
Name: DateOfBirth
Datatype: LocalMktDate (String)
Format: YYYYMMDD
Dialects: FIX 4.4
Messages: 1

What the specification says

The date of birth applicable to the individual, e.g. required to open some types of tax-exempt account.

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

A real message using tag 486

RegistrationInstructions · FIX 4.4

Tag	Field	Wire value	Meaning
8	BeginString	FIX.4.4
9	BodyLength	149
35	MsgType	o	Registration Instructions
49	SenderCompID	BOARTEAM
56	TargetCompID	COUNTERPARTY
34	MsgSeqNum	2
52	SendingTime	20240101-12:00:00.000
513	RegistID	EXAMPLE
514	RegistTransType	0	New
508	RegistRefID	EXAMPLE
473	NoRegistDtls2 entries	2	repeating group
509	RegistDtls	EXAMPLE
486	DateOfBirth	20240101
509	RegistDtls	EXAMPLE
486	DateOfBirth	20240101
10	CheckSum	166

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 486 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	Requiredness	Where in the message
RegistrationInstructions	o	Optional	inside the RgstDtlsGrp component

Wire format

A calendar date in the market's local timezone, with no time component and no offset. @boarteam/fix keeps the value as a string; format rules are checked by validate(), which reports validate/invalid-value rather than throwing.

Read tag 486 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[486];field?.name;   // "DateOfBirth"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