Opt out of the credit agencies' marketing services

Last checked: 28 Sep 2026; links rechecked 12 Oct 2026

Experian, Equifax and TransUnion are best known for credit files, but each also runs a marketing-data service, separate from the credit file. Their marketing data includes names and addresses from the open register. You can opt out of each one.

Your right to object. The UK data protection regulator (the Information Commission, formerly the ICO) says you have the right to ask an organisation to stop using your information for direct marketing, and that organisations cannot refuse. They can keep your details on a suppression list so they know not to use them. The regulator's right to object page has a template letter.

Start by opting out of the open register, since all three agencies name it as a source. Then:

Experian Marketing Services

How: Experian's online opt-out form. It asks for your name and address, with email optional.
Options: opt out of "All data processing for direct marketing, including any profiling", or choose specific sectors or channels (post or email).
Other routes: email [email protected], or write to Experian Customer Service Team, Experian Ltd, PO Box 8000, Nottingham NG80 7WF.
Good to know: Experian keeps a suppression record so your details aren't added back; you can separately ask for that to be deleted. Opting out doesn't affect messages about any account you have with Experian.

TransUnion (formerly Callcredit)

How: email [email protected] and ask to opt out of marketing services.
Timing: TransUnion says it adds you to a suppression list, which "may take up to 30 days".
Good to know: TransUnion's marketing data includes names and addresses from the open register, which it resells through Sagacity (below). It says it keeps open-register data while you're on the open register, plus two months.

Equifax

How: Equifax has no dedicated web form. Contact it through its contact page, by phone (0333 321 4043 or 0800 014 2955), by email to [email protected], or by post to Equifax Ltd, Customer Service Centre, PO Box 10036, Leicester LE3 4FS.
Good to know: Equifax says its marketing services are "limited", use open-register names and addresses for postal marketing, and that it doesn't disclose credit files or "credit derived" data for direct marketing. It adds people who object to its suppression files.

Sagacity ("My Data Choices")

How: the My Data Choices site ("Suppress my data"), email [email protected], or post to the DPO, Sagacity Solutions Ltd, 5th Floor, 24 Monument Street, London EC3R 8AJ.
Why it's here: Sagacity resells open-register data for TransUnion and supplies data to ukphonebook.

Acxiom UK

How: email [email protected], or post to Consumer Services Department, Acxiom Ltd, Bankside 3, 90–100 Southwark St, London SE1 0SW.
Good to know: Acxiom's current UK policy says its product data is kept in an aggregated form so individuals can't be identified.

Suppression lists, not deletion

Experian, Equifax, TransUnion and Sagacity all say they keep a suppression record after you opt out, so your details aren't added back from another source. Asking for everything to be deleted, including that record, may make it more likely you're added back later.

Your credit file is separate

The credit reference agencies still receive the full electoral register by law, but for credit checks and anti-money-laundering duties, not marketing. Opting out of their marketing services is a separate thing from your credit file.

Sources

This page describes your options and how organisations say they handle requests. It isn't legal advice. See About & sourcing to report a correction.