# Taxd > Taxd is HMRC-recognised tax filing software for UK residents, expats, landlords and limited companies. Built by ATT, ACA and ICAEW-qualified former PwC and KPMG tax specialists. Supervised by the Association of Taxation Technicians. Files SA100-SA110 self-assessments, CT600 corporation tax returns, SA800 partnership returns and dormant accounts. ## Services - [Personal tax returns](https://www.taxd.co.uk/personal) - [Company tax returns](https://www.taxd.co.uk/company) - [Partnership tax return (SA800)](https://www.taxd.co.uk/partnership-tax-return-sa800) - [Making Tax Digital (MTD)](https://www.taxd.co.uk/mtd) - [Company incorporation](https://www.taxd.co.uk/incorporation) ## Who we support - [Buy-to-let landlords](https://www.taxd.co.uk/buy-to-let) - [Non-resident landlords](https://www.taxd.co.uk/landlord-non-res) - [Non-residents with UK income](https://www.taxd.co.uk/non-res-foreign) - [Self-employed](https://www.taxd.co.uk/self-employed) - [High earners](https://www.taxd.co.uk/high-earner) ## Pillar content - [Taxdpedia](https://www.taxd.co.uk/taxdpedia) - [FAQs](https://www.taxd.co.uk/faqs) - [About us](https://www.taxd.co.uk/about-us) - [How it works](https://www.taxd.co.uk/how-it-works) ## Calculators - [Making Tax Digital calculator](https://www.taxd.co.uk/mtd-calculator) - [UK tax residence calculator](https://www.taxd.co.uk/uk-tax-residence-calculator) - [PRR calculator](https://www.taxd.co.uk/prr-calculator) - [Property structure calculator](https://www.taxd.co.uk/property-structure-calculator) - [Car capital allowance calculator](https://www.taxd.co.uk/car-capital-allowance-calculator) - [Section 24 calculator](https://www.taxd.co.uk/section-24-calculator) Sitemap: https://www.taxd.co.uk/sitemap.xml