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How do you close a UK limited company? This fact-checked 2026 guide from Filing Accounts covers voluntary strike off (DS01), the £13 fee, eligibility conditions, and common mistakes to avoid.

What are a UK company director’s legal responsibilities? This fact-checked 2026 guide from Filing Accounts covers the 7 statutory duties, filing obligations, and personal liability risks under the Companies Act 2006.

Can I Amend My Self Assessment Tax Return After Filing It? A Complete Guide for 2026   Yes — you can amend your Self Assessment tax return after you have submitted it, whether you spotted a mistake, forgot to include income, claimed the wrong expenses, or simply entered incorrect figures. You can amend tax return UK using HMRC’s process, which allows you to correct most errors easily. HMRC provides a straightforward way to amend tax return UK, helping you avoid penalties and interest charges. Updated March 2026: HMRC allows you to make changes to your Self Assessment return within 12 months of the original filing deadline (usually 31 January). For the 2025/26 tax year (deadline 31 January 2027), you can amend online until 31 January 2028. After this window, you can still request changes by writing to HMRC, but the process is more formal and you may face interest or penalties if the amendment increases your tax bill. At Filing Accounts, we help many self-employed individuals, landlords, and company directors correct their tax returns quickly and accurately, minimising any extra costs. Contact us today for expert assistance with amending your Self Assessment return. Why Would You Need to Amend Your Self Assessment Tax Return? Everyone makes mistakes — even careful people. Common reasons for amending a tax return include: Forgetting to declare some income (e.g., freelance work, rental income, or bank interest) Missing allowable expenses or claiming too much Entering incorrect figures for dividends, pensions, or capital gains Simple typing errors in personal details, addresses, or calculations Discovering new information after filing (e.g., a late-issued invoice or P60) Making an amendment promptly is always better. It shows HMRC you are acting honestly and can reduce or avoid penalties if the change increases the tax you owe. Tailored Tutoring provides personalized private tutoring services to help students improve their grades, confidence, and academic performance. Example: You filed your 2025/26 return on 20 January 2027 but later realised you forgot £3,000 of freelance income. Amending within the 12-month window lets you correct this easily before HMRC’s data-matching systems flag it. How Long Do You Have to Amend Your Self Assessment Return? The standard window is 12 months from the Self Assessment filing deadline for that tax year. For the 2025/26 tax year (filing deadline: 31 January 2027) → You can amend until 31 January 2028. Online filers must wait 72 hours (3 days) after submission before the amendment option becomes available. If you miss the 12-month window, you can still request a change by writing to HMRC, but this is treated as a formal claim or disclosure. HMRC may accept it up to 4 years later for overpayments (or longer in cases of genuine error), but interest will usually apply on any additional tax due. Important: Acting quickly is always best. The sooner you correct underpaid tax, the less interest accrues. Official GOV.UK guidance: Correcting your Self Assessment tax return How to Amend Your Self Assessment Tax Return (Step-by-Step) Within the 12-Month Window (Easiest Method) Wait 72 hours after you originally submitted the return. Log into your HMRC Personal Tax Account via Government Gateway. Go to Self Assessment → Tax returns and calculations. Select the relevant tax year and choose Amend return. Make the necessary changes carefully. Review the updated tax calculation (HMRC will automatically recalculate your bill or refund). Submit the amended return. You will receive immediate confirmation, and any change to your tax liability will be shown straight away. After the 12-Month Window You must write a letter to HMRC including: Your full name and National Insurance number The tax year(s) affected A clear description of the error and the correct figures Whether it results in more tax due or a refund Your contact details and signature Send the letter to: Self Assessment, HM Revenue and Customs, BX9 1AS, United Kingdom HMRC will review your request and reply, which may take several weeks. Pro tip: Always keep a copy of your letter and any supporting documents. What Happens When You Amend Your Return? HMRC recalculates your tax automatically. If you owe more tax → You must pay the difference plus any interest from the original due date. If you are due a refund → HMRC will usually repay it to your nominated bank account. Amending within the 12-month window generally avoids penalties if done voluntarily and honestly. Common Mistakes and How to Avoid Them Forgetting the 72-hour waiting period after filing. Making changes without double-checking the impact on your overall tax bill. Amending only one year when multiple years are affected. Delaying the amendment until HMRC contacts you (this can trigger higher penalties). What Our Clients Say on Trustpilot “Filing Accounts spotted an error in my Self Assessment and amended it quickly. Saved me from extra interest!” – Anonymous, March 2026 (5 stars) “Clear guidance on amending my return. They handled everything professionally.” – Mark T., February 2026 (5 stars) “Stress-free process for correcting my tax return. Highly recommend for self-employed.” – Sarah L., January 2026 (5 stars) With our consistent 4.2/5 Trustpilot rating, clients trust us to fix tax return issues efficiently. Frequently Asked Questions How long after filing can I amend my Self Assessment return? You have 12 months from the original filing deadline (usually 31 January). Can I amend a paper tax return? Yes — you can submit a new paper return or write to HMRC. Will amending my return trigger a tax investigation? Voluntary amendments within the time limit rarely do. However, large or repeated changes may attract HMRC attention. What if the amendment means I owe more tax? You will need to pay the additional amount plus interest from the original due date. Can Filing Accounts help me amend my Self Assessment? Yes — we review your return, make accurate amendments, and handle communication with HMRC. Official GOV.UK resources: Correcting your Self Assessment tax return Self Assessment tax returns deadlines Pay your Self Assessment tax bill Need Help Amending Your Self Assessment Tax Return?

What Is an SA302 Tax Overview and How Do Self-Employed People Use It for a Mortgage Application in 2026? Complete UK Guide 2026   Yes — the SA302 is an official HMRC document that shows a clear, summarised overview of your Self Assessment tax position for a specific tax year. It is often called the “Tax Calculation Summary” and is one of the most important pieces of evidence self-employed individuals need when applying for a mortgage. Updated March 2026: Mortgage lenders have become stricter with self-employed applicants due to higher interest rates and more cautious lending criteria. Almost every mainstream lender now requires at least the last 2 years of SA302 tax overviews (plus the related tax return) to verify income. Without a clean SA302, your mortgage application can be delayed or rejected, even if your business is profitable. At Filing Accounts, we help hundreds of self-employed clients every month obtain their SA302 quickly, understand what it means, and present their tax position in the strongest possible way to mortgage brokers and lenders. Contact us today for expert help with your SA302 and mortgage-ready tax documents. What Exactly Is an SA302 Tax Overview? The SA302 is a short, official summary produced by HMRC that shows: Your total taxable income for the tax year (6 April to 5 April) All sources of income (self-employment profits, rental income, dividends, savings interest, etc.) Allowable deductions and reliefs claimed Your final Income Tax and Class 4 National Insurance liability Any overpayment or underpayment It is not the full Self Assessment tax return (SA100) — it is the concise “bottom line” version that lenders love because it is easy to read and directly from HMRC. Key point for self-employed: Your SA302 proves your actual taxable profit after expenses, which is what most mortgage lenders use to calculate how much they are willing to lend you. Official GOV.UK resource: View your Self Assessment tax calculation (SA302) Why Do Mortgage Lenders Ask Self-Employed People for an SA302? Traditional PAYE employees can simply provide 3 months of payslips and a P60. Self-employed applicants cannot, so lenders need independent proof of income. Lenders typically want: Last 2 years of SA302 (tax calculation summary)  and tax overviews summary pdf from HMRC portal (sometimes 3 years for larger loans) The full Self Assessment tax return for the same years Proof that tax has been paid (bank statements showing HMRC payments) The SA302 gives lenders confidence that: Your declared income is verified by HMRC Your profits are sustainable You are not inflating your income for the mortgage application Step-by-Step: How Self-Employed People Get Their SA302 in 2026 Log into your HMRC Personal Tax Account Go to GOV.UK Personal Tax Account and sign in with your Government Gateway details. Go to Self Assessment Select “View your tax returns and calculations”. Download the SA302 For each tax year you need, click “View calculation” or “Tax calculation summary”. You can download or print it as a PDF. Request a paper copy if needed If you cannot access online, call the Self Assessment helpline (0300 200 3310) or use the post option on your HMRC account. Check the document is complete Ensure it clearly shows your taxable profit from self-employment and the final tax due. Tip: Keep digital copies of every SA302 forever — you never know when a lender or broker will ask for them. What Mortgage Lenders Look For in Your SA302 (Self-Employed Checklist) Most lenders assess self-employed income using the lowest of the last 2 years or an average. Here’s exactly what they check: Taxable profit after expenses (the figure lenders use for affordability) Consistency — sudden drops in profit can reduce the amount they will lend Tax paid on time — late payments can count against you No large one-off expenses that artificially reduce profit Dividend income (if you are also a company director) Pro tip: If your profit has fallen in the most recent year, many lenders will still use the higher of the two years if you can provide a strong business forecast and accountant’s letter. Full List of Documents Self-Employed People Need for a Mortgage in 2026 2–3 years of SA302 and  tax overviews Full Self Assessment tax returns (SA100) for the same years 2–3 years of business accounts or tax computations (prepared by an accountant) Current year’s management accounts or profit & loss forecast Bank statements showing tax payments to HMRC Proof of ID and address Business bank statements (last 3–6 months) Accountant’s reference letter (often required) Step-by-Step Tips to Strengthen Your Mortgage Application as Self-Employed Use an accountant to prepare clean, professional accounts and SA302-ready tax returns. Pay your tax on time every year — lenders check payment history. Keep personal and business finances separate. Consider incorporating as a limited company if profits are high (easier lending criteria for some banks). Get a mortgage broker who specialises in self-employed clients. What Our Clients Say on Trustpilot “Filing Accounts sorted my SA302 and mortgage documents in record time. The broker was impressed with how clear everything was!” – Anonymous, March 2026 (5 stars) “They explained exactly what lenders need from self-employed applicants. Got my mortgage approved smoothly.” – Mark T., February 2026 (5 stars) “Professional, fast and worth every penny for self-employed mortgage support.” – Sarah L., January 2026 (5 stars) With our consistent 4.2/5 Trustpilot rating, self-employed clients trust us to make their tax documents mortgage-ready. Frequently Asked Questions How many years of SA302 do I need for a mortgage? Most lenders ask for the last 2 full tax years; some want 3. Can I get an SA302 if I haven’t filed my tax return yet? No — you must file your Self Assessment return first. Do lenders accept SA302 from an accountant or must it come from HMRC? It must be the official HMRC SA302 document. What if my profit has dropped this year? You can still apply using the higher of the last two years, supported by an accountant’s forecast. Can Filing Accounts help

What Are Payments on Account for Self Assessment in 2026? Complete UK Guide 2026   Yes — payments on account UK are advance payments of Income Tax and Class 4 National Insurance that HMRC requires most higher-earning Self Assessment taxpayers to make twice a year. Payments on account UK help spread your tax bill and reduce the risk of a large lump-sum payment on 31 January. Updated March 2026: With frozen tax thresholds and higher interest rates still in effect, more self-employed individuals, landlords, and company directors are now falling into the Payments on Account system. The rules remain the same as previous years, but the amounts are often higher due to increased profits and unchanged tax bands. HMRC calculates these payments automatically based on your previous year’s tax liability. At Filing Accounts, we help thousands of Self Assessment clients understand, calculate, and pay their Payments on Account on time — avoiding late-payment interest and stress. Contact us today for expert help with your Self Assessment and Payments on Account. What Exactly Are Payments on Account? Payments on Account (often called POAs) are two equal advance payments towards your total Income Tax and Class 4 National Insurance bill for the current tax year. They are not an extra tax — they are simply early payments of tax you will eventually owe. You make them on 31 January (first POA) and 31 July (second POA) each year. The final balancing payment (or refund) is settled on the following 31 January when you file your Self Assessment tax return. Simple example: If your total tax bill for 2025/26 is £8,000, you will usually pay £4,000 on 31 January 2026 and £4,000 on 31 July 2026. Any over or under payment is adjusted on 31 January 2027. Official GOV.UK guidance: Payments on account for Self Assessment Who Has to Make Payments on Account? You must pay Payments on Account if both of the following apply: Your previous year’s Self Assessment tax bill (Income Tax + Class 4 NI) was £1,000 or more, and You paid less than 80% of your tax bill through PAYE or other deductions. Common groups who pay POAs: Self-employed sole traders with profits over roughly £30,000–£40,000 Landlords with significant rental income Company directors taking dividends Anyone with untaxed income (investments, freelance work, etc.) Important 2026 note: Even if your income has dropped this year, you may still have to pay the same POA amount as last year — you can claim it back when you file your return. How Are Payments on Account Calculated? HMRC automatically calculates your POAs based on your previous tax year’s liability. Each POA = 50% of the previous year’s Income Tax + Class 4 National Insurance. HMRC sends you a statement (SA370 or SA372) showing the exact amount. Example for 2025/26 tax year: 2024/25 tax bill = £12,000 First POA due 31 Jan 2026 = £6,000 Second POA due 31 July 2026 = £6,000 You can ask HMRC to reduce your POAs if you expect your income to fall significantly this year. Deadlines for Payments on Account 2026/27 Payment Due Date Covers First Payment on Account 31 January 2026 Half of 2025/26 tax bill Second Payment on Account 31 July 2026 Half of 2025/26 tax bill Final Balancing Payment 31 January 2027 Any remaining tax for 2025/26    Missing these deadlines triggers late-payment interest (currently 7.75%) from the due date. How to Pay Your Payments on Account You have several easy options: Online via HMRC Personal Tax Account (recommended) Log in → Self Assessment → Payments → Pay now. Instant confirmation. Bank transfer / Faster Payments Use your 11-character reference (your UTR + letter K). Debit or credit card (via GOV.UK pay page). Direct Debit (set up once for automatic payments). Official payment page: Pay your Self Assessment tax bill What Happens If You Overpay or Underpay? Overpaid → You will receive a refund or it will reduce your next year’s POAs. Underpaid → You pay the difference (plus any interest) on 31 January the following year. You can ask HMRC to reduce your POAs at any time if your circumstances have changed. Step-by-Step Checklist: Managing Payments on Account in 2026 Check your HMRC online account for the exact POA amounts. Set calendar reminders for 31 January and 31 July. Budget the payments into your cash flow. Review your expected income mid-year — request a reduction if needed. Keep records of all payments for your tax return. File your Self Assessment on time (by 31 January) to finalise the balance. Common Mistakes to Avoid Ignoring the POA because “I’ll sort it when I file my return” Using the wrong payment reference Forgetting that POAs are based on last year’s (higher) income Not claiming a reduction when income drops What Our Clients Say on Trustpilot “Filing Accounts explained my Payments on Account clearly and helped me pay on time. No surprise bills!” – Anonymous, March 2026 (5 stars) “Excellent guidance on Self Assessment POAs. They even set up reminders for me.” – Mark T., February 2026 (5 stars) “Saved me from late-payment interest. Professional and very helpful.” – Sarah L., January 2026 (5 stars) With our consistent 4.2/5 Trustpilot rating, clients rely on us for clear, practical Self Assessment support. Frequently Asked Questions What is the minimum tax bill that triggers Payments on Account? £1,000 or more for the previous tax year. Can I reduce my Payments on Account? Yes — contact HMRC online or by post if you expect lower tax this year. Do I still pay POAs if I have no tax to pay this year? You may still receive demands, but you can claim a reduction or get a full refund after filing. Does Filing Accounts help with Payments on Account? Absolutely — we review your position, calculate correct amounts, and handle payments if required. Official GOV.UK resources: Payments on account Pay Self Assessment tax bill Self Assessment tax returns Need Help with Your Self Assessment Payments on Account? Payments on

What Is the CT41G Form UK from HMRC and What Should You Do With It in 2026? (UK Guide 2026)   Yes — the CT41G form UK is an important introductory letter (and sometimes form) that HMRC automatically sends to most newly incorporated UK limited companies shortly after registration with Companies House. The CT41G form UK serves as your company’s official introduction to the Corporation Tax system, providing your Unique Taxpayer Reference (UTR) number and guiding you on next steps for tax compliance. Updated March 2026: HMRC has largely moved away from paper forms for standard limited companies. Instead, the CT41G form UK now directs you to handle everything online through your Government Gateway account. The CT41G form UK is still important because it guides you on how to register for Corporation Tax and complete your initial compliance steps correctly. You must still act promptly  especially if your company has started trading  to register for Corporation Tax within 3 months of beginning business activity. Missing this can lead to penalties, interest on late payments, and complications with your first Company Tax Return (CT600). At Filing Accounts, we help new directors understand and respond correctly to their CT41G letter, set up online accounts, and stay fully compliant from day one. Contact us today for expert support with your new limited company’s tax obligations. What Exactly Is the CT41G Form/Letter? The CT41G is HMRC’s way of acknowledging your company’s incorporation and starting the process of bringing it into the Corporation Tax regime. It typically includes: Your company’s 10-digit Unique Taxpayer Reference (UTR) number — essential for all future Corporation Tax communications and payments. Your company’s Tax Office number. Clear instructions on how to set up or activate your HMRC online Corporation Tax services. Guidance on whether your company is trading, dormant, or non-trading. Details about your first Corporation Tax return deadlines and payment obligations. Information on how to appoint an agent (such as an accountant) to handle your tax affairs. Note: For most standard limited companies, the traditional paper “CT41G form” has been phased out. You now receive a letter with instructions to complete everything digitally. Official GOV.UK reference: Corporation Tax: trading and non-trading When and Why Do You Receive a CT41G Letter? Companies House automatically notifies HMRC when a new company is incorporated. HMRC then sends the CT41G letter to your registered office address, usually within 2–4 weeks. The letter helps HMRC: Assign your company a UTR for tax records. Understand whether you intend to trade or remain dormant. Set the correct accounting periods and deadlines. Ensure you register for Corporation Tax at the right time. Even if your company is currently dormant (no significant trading activity), you should still respond or notify HMRC to avoid unnecessary follow-ups. What You Must Do After Receiving the CT41G Letter Your actions depend on your company’s status: If Your Company Has Started Trading Register for Corporation Tax within 3 months of the date you began business activity. Set up your HMRC online Corporation Tax account using the activation code or instructions in the letter. Prepare for your first Company Tax Return (CT600), due 12 months after your Accounting Reference Date. If Your Company Is Dormant (No Trading) Notify HMRC that the company is dormant for Corporation Tax purposes as soon as possible. This prevents them from expecting a full tax return. You may still need to activate online services for future use. Pro tip: Even dormant companies must file annual accounts with Companies House and a Confirmation Statement (CS01). The CT41G helps keep your HMRC records accurate. Step-by-Step: How to Respond to Your CT41G Letter in 2026 Read the letter carefully — Note your UTR, Tax Office number, and any deadlines. Create or log into your Government Gateway account — This is required for online Corporation Tax services. Activate or set up Corporation Tax online services — Follow the instructions in the letter (an activation code is often posted separately). Confirm trading status — Tell HMRC whether the company has started trading or remains dormant. Register for Corporation Tax if trading — Do this online via GOV.UK within the 3-month window. Appoint an agent if needed — You can authorise an accountant to handle filings and communications. Keep records — Store the CT41G letter safely with your company documents. Official registration service: Register for Corporation Tax Common Questions About the CT41G Form Do I have to complete and return a paper form? No — for most limited companies, everything is now handled online. Paper forms are mainly used for clubs, societies, or specific cases. What if I don’t receive the CT41G letter? Contact HMRC or request a copy of your UTR online. Delaying can cause problems later. Does the CT41G mean my company is automatically registered for Corporation Tax? No — you usually still need to confirm trading status and complete online registration if you have started business activity. What are the penalties for ignoring the CT41G? You risk late-registration penalties, interest on unpaid tax, and complications with your first tax return. HMRC can also issue penalties for failure to notify. What Our Clients Say on Trustpilot “Filing Accounts explained my CT41G letter clearly and helped me set up everything online quickly. No stress at all!” – Anonymous, March 2026 (5 stars) “Professional service from start to finish. They handled the CT41G response and Corporation Tax registration perfectly.” – Mark T., February 2026 (5 stars) “Saved me hours of confusion with my new company’s tax setup. Highly recommend!” – Sarah L., January 2026 (5 stars) With our consistent 4.2/5 Trustpilot rating, new directors trust us to guide them through these important early steps. Frequently Asked Questions How soon after incorporation will I receive the CT41G? Usually within 2–4 weeks, sent to your registered office address. Do dormant companies need to respond to the CT41G? Yes — notify HMRC of your dormant status to avoid unnecessary tax returns. Can I appoint an accountant to deal with the CT41G? Yes — authorising an agent makes