--- title: "Self-Employed Deadline Support Cardiff | TCK Accounting" description: "Clear Self Assessment deadline plan for sole traders: key dates, record checklist and reminders so your return is filed on time." canonical: "https://www.tckaccounting.co.uk/services/self-employed-deadline-support" --- ![Person at desk with laptop and simple icons representing VAT setup elements in a neutral office scene.](/_next/image?url=%2Fapi%2Fmedia%2Ffile%2Fquickbooks-vat-setup-uk-hero.png%3Fv%3D1769183244062&w=1536&q=75&dpl=dpl_HkjxAMLz8SoKDEaYz6gDcGJLMf1v) Self-employed & partnership accounts # Self-Employed Deadline Support [Book a free consultation](https://www.tckaccounting.co.uk/redirect-contact) Self-Employed Deadline Support helps you stay on top of UK Self Assessment dates and avoid last-minute scrambles. You get a clear timeline for what to prepare and when, so you can gather records in good time and file with confidence. ## What Self-Employed Deadline Support covers You will get a practical deadline plan tailored to how you work, so you know what is due and what to do next. - Clear explanation of key Self Assessment dates (paper vs online) - A simple schedule for record gathering, checks, and sign-off - A list of documents and figures to prepare (income, expenses, mileage, home office, etc.) - Guidance on payment timing, including budgeting for tax and Payments on Account where relevant - A light-touch reminder and accountability approach, so deadlines do not creep up - Clarification on common triggers, such as when you need to register for Self Assessment ### Who this is for This support is designed for sole traders, freelancers, and contractors who want certainty around deadlines without having to keep HMRC rules in their head. It is especially useful if your income varies, you have multiple clients, or your admin tends to slip when work is busy. ### How the support works We start by confirming your position, how you get paid, and what records you already keep. You then receive a step-by-step timeline built around the relevant filing route, with clear actions for each stage so you can collect information early, spot gaps, and avoid avoidable delays. ### What you will have at the end You will finish with a straightforward plan you can follow each year, plus a checklist that makes it easier to stay organised. You will also know what “good records” look like, so you spend less time chasing information and more time running the business. ### After delivery If you want to reduce admin further, the same structure can be used to support ongoing bookkeeping and a smoother year-end process, so Self Assessment becomes routine rather than stressful. [Book a free consultation](https://www.tckaccounting.co.uk/redirect-contact) ## Frequently Asked Questions What are the key Self Assessment deadlines I need to know? In most cases, the paper return deadline is 31 October and the online deadline is 31 January following the end of the tax year. Tax owed is usually due by 31 January, and Payments on Account may also be due on 31 January and 31 July. Is this service just reminders, or does it include planning what to prepare? It includes both. You get a clear timeline plus a practical checklist of the records and figures to gather, so you can work through tasks in the right order and avoid missing items. Can you help if I have missed a deadline or I am behind on records? Yes. The first step is to confirm what is outstanding and what can be done quickly to get you back on track, then agree a short recovery plan. Where penalties may apply, we will explain the likely impact and the next actions. What records should I gather for Self Assessment? Typically you will need income records, expense evidence, bank statements, and details of any other taxable income. If relevant, you may also need mileage logs, home-working costs, and information on equipment or subscriptions. Does this include completing and filing my Self Assessment return? Deadline Support focuses on understanding dates and getting your records ready in good time. If you also want your return prepared and filed, that can be handled as a separate agreed piece of work. [Book a free consultation](https://www.tckaccounting.co.uk/redirect-contact) ## Related Services Complete your experience with these services - Error Prevention Review (Self-Employed Returns) [View](/services/error-prevention-review-self-employed-returns) - Self-Employed Tax Efficiency Support [View](/services/self-employed-tax-efficiency-support) - Self-Employed Accounts for Self Assessment [View](/services/self-employed-accounts-for-self-assessment) - Expense Categories Guidance (Travel, Rent, Supplies) [View](/services/expense-categories-guidance-travel-rent-supplies) Show more services - Allowable Expenses Review (Self-Employed) [View](/services/allowable-expenses-review-self-employed) - Self-Employed Record Collection Checklist [View](/services/self-employed-record-collection-checklist) - Self-Employed Profit Calculation [View](/services/self-employed-profit-calculation) - Partnership Accounts Preparation [View](/services/partnership-accounts-preparation) - Sole Trader Accounts Preparation [View](/services/sole-trader-accounts-preparation) ## Related Blog Posts - [![Person at a desk in a small office environment reviewing documents and using a laptop, symbolizing business accounts preparation.](/_next/image?url=%2Fapi%2Fmedia%2Ffile%2Fqa-filing-profit-figures-uk-business.png%3Fv%3D1769514403751&w=1536&q=75&dpl=dpl_HkjxAMLz8SoKDEaYz6gDcGJLMf1v) ### Do I Still File a Self Assessment Return if I Don’t Know My Profit Yet? Yes—HMRC says you must still file. Use provisional figures, tell HMRC, then amend your return once your final profit is known. Read more ](/blog/do-i-still-file-a-self-assessment-return-if-i-dont-know-my-profit-yet) - [![A computer on a desk in a small business office setting, displaying accounting software.](/_next/image?url=%2Fapi%2Fmedia%2Ffile%2Fhmrc-vat-software-editorial-uk-small-business.png%3Fv%3D1769183233536&w=1536&q=75&dpl=dpl_HkjxAMLz8SoKDEaYz6gDcGJLMf1v) ### MTD for VAT Penalties: What HMRC Says About Filing Without Functional Compatible Software HMRC says it may charge a penalty of up to £400 for every VAT return filed without functional compatible software under MTD for VAT. Read more ](/blog/mtd-for-vat-penalties-what-hmrc-says-about-filing-without-functional-compatible-software)