Self Assessment 2024–2025: Key Deadline & What’s Changing with MTD
If you earn income outside of PAYE—whether you're self-employed, a freelancer, a landlord, a contractor, a content creator, or you run a small business—you may need to complete a Self Assessment tax return.


📅 Key Deadline to Remember
The online submission deadline for the 2024–2025 tax return is 31 January 2026
This means all income earned between 6 April 2024 and 5 April 2025 must be reported and any tax owed must be paid by this date.
Missing the deadline can lead to:
£100 automatic penalty (even if you owe no tax)
Additional daily penalties if delayed further
Interest charged on unpaid tax
So it’s always best to prepare early rather than rush in January!
What’s Changing: Making Tax Digital (MTD)
HMRC is gradually moving taxpayers to a new digital reporting system called Making Tax Digital (MTD).
For many individuals, especially sole traders and landlords, this means:
From April 2026:
If your self-employed or rental income is more than £50,000/year, you will no longer file one Self Assessment return per year.
Instead, you will need to:
Keep digital records of income and expenses (e.g., Xero, QuickBooks, FreeAgent)
Submit quarterly updates to HMRC
Send an end-of-year return to finalise your figures
From April 2027:
The threshold reduces to £30,000/year.
This is a big shift. It means:
Spreads reporting throughout the year
Makes bookkeeping more important
Makes running your finances from spreadsheets more risky
What You Should Do Now
Keep digital records (Xero / QuickBooks / FreeAgent recommended)
Use a separate business bank account
Keep receipts/expense evidence
Reconcile transactions monthly
Avoid leaving everything to January
If this feels overwhelming — you don’t have to do it alone.
✅ My Services
I help with:
Self Assessment filing (fixed fee)
Tax planning & allowable expense guidance
Xero / QuickBooks setup & training
Ongoing bookkeeping (optional)
Preparing for MTD and quarterly submissions
You focus on your business.
I’ll handle the paperwork and HMRC.
📩 Message me to get started or ask a question — friendly and judgment-free.
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