From forgetting dividends above £500 to getting your student loan plan wrong, these are the 10 most common HMRC Self Assessment mistakes in 2026/27 — and the penalties for each.
Full penalty schedule for late Self Assessment returns in 2026: £100 day 1, £10/day after 3 months, 5% surcharges, appeal process and Time to Pay explained.
Received an HMRC P800 or Simple Assessment letter about underpaid tax? Learn why it happens, how to check it, challenge it, and the ways HMRC collects the debt.
HMRC allowable expenses for sole traders in 2026/27: travel, home office, equipment, clothing, staff costs and what you cannot claim. Real examples included.
1257L is the standard UK tax code for 2026/27. Learn what every digit and letter means, what common codes like BR and 0T cost you, and how to fix a wrong code.
Miss the Self Assessment deadline and penalties start immediately — £100 on day one, then £10 a day after 3 months. Here are all the 2025/26 deadlines, who needs to file, how the penalty system works, and what Making Tax Digital means from April 2026.
How Universal Credit earnings taper works in 2026/27: 55p in every £1 above your work allowance, £673/£404 thresholds, childcare element, benefit cap and two-child limit.
Child Tax Credit and Working Tax Credit are being replaced by Universal Credit. Who can still claim legacy benefits in 2026, managed migration deadlines, and what you'd get on UC instead.
Gift Aid mistakes mean HMRC can claw back donations from charities, and donors can face surprise tax bills. The 7 most common errors — and how higher-rate taxpayers often leave money on the table.
HMRC now receives annual income data from Airbnb, eBay, Etsy, Fiverr, Vinted and Uber. Here's what to do if you sell online or work a side gig.
Your State Pension forecast is available in minutes via HMRC One Login. Here's how to read it, what the gap years mean, how to buy missing years for £907 each, and whether deferring makes sense.
MTD ITSA launches April 2026 for income over £50,000. What it means, the new quarterly updates requirement, compatible software, and what happens if you're not ready.
