I’m a subcontractor and pay my tax through Relevant Contracts Tax (RCT). Do I still need to submit an Income Tax return? a) Yes contractors subject to Relevant Contracts Tax must complete an annual Income Tax return. By Cathal Maxwell|2025-05-23T08:09:47+01:00May 23, 2025|Tax Return Self Assessment FAQs| Share This Story, Choose Your Platform! FacebookXBlueskyRedditLinkedInWhatsAppTelegramTumblrPinterestXingEmail About the Author: Cathal Maxwell Cathal brings over 40 years of tax experience, advising individuals and businesses on Income Tax, Capital Taxes, Inheritance Tax, Stamp Duty, and VAT.