If you need to file a Self Assessment tax return today, you’re not the only one.
Every January, plenty of people find themselves short on time and looking for a clear, no-nonsense checklist. At this stage, the goal is simple: get everything submitted accurately and on time.
This checklist focuses on what actually matters today.
Step 1: Confirm You Need to File
Before doing anything else, make sure you’re required to submit a Self Assessment tax return.
This usually applies if you’re self-employed, a company director, a landlord, or you’ve received income outside PAYE. If you’re unsure, this guide explains the rules clearly: Do I Need to File a Self Assessment Tax Return? UK Rules Explained
If you do need to file, move on straight away.
Step 2: Check You Can Access Your HMRC Account
If you can’t log into HMRC, deal with this early.
Government Gateway problems are common in January, and login issues can quickly slow everything down. Make sure you know your user ID, can receive security codes, and can access the Self Assessment section of your account.
If access issues aren’t resolving quickly, you may need support to avoid missing the deadline.
Step 3: Gather the Essentials
At a minimum, you’ll need:
Your UTR number
Details of all income for the tax year
A list of allowable expenses
Any additional income such as interest or dividends
Don’t aim for perfection, aim for accuracy with the information you have available.
Step 4: Sense-Check Your Figures
When filing at the last minute, simple mistakes are easy to make.
Take a moment to check that:
Income hasn’t been entered twice or missed
Expenses are reasonable and relevant
The figures broadly match your record
Catching small errors now can save bigger problems later.
Step 5: Submit as Soon as You Can
Once everything is complete, submit your return as soon as possible.
Even if you can’t pay your tax bill immediately, filing on time helps avoid late-filing penalties. Payment options can usually be discussed with HMRC after submission if needed.
Step 6: Get Help If You’re Stuck
If time is tight, something doesn’t look right, or HMRC systems are causing delays, getting professional help can be the quickest way forward.
An accountant can prepare and submit your return, deal with HMRC on your behalf, and help reduce the risk of costly mistakes.
Final Thoughts
A last-minute Self Assessment doesn’t have to turn into a crisis. With a clear plan and the right support, it’s still possible to get everything filed properly, even in January. Contact us today.
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