Record keeping (self-employed) You must keep accurate records for your business.
For example, your accounts, records of tax you have paid and all other records of your income and outgoings. You'll need these to help you fill in your Self Assessment tax return or to answer any questions from HM Revenue & Customs (HMRC). Small self-employed businesses may be able to use 'cash basis' accounting, based on the money going in and out of your business, rather than traditional accounting methods that cover stock on hand, amounts owed and so on. Record-keeping.
The Corporation Tax Act 2010. The Taxation (International and Other Provisions) Act 2010. Starting a business. On this page you will find links to guidance on what you need to do for tax and National Insurance purposes when you start up a business as a self-employed person, a partnership or a limited company.
You will also find links to additional help and support HM Revenue & Customs (HMRC) offer new businesses. On this page: What you need to do when you start a business Follow the links below to guidance on what you need to do for tax and National Insurance purposes when you start a business including return filing and paying deadlines and what records you must keep. Register a new business. Tax Law Rewrite.