HMRC resource shortage spreads to self-assessment
HMRC has announced that the general self-assessment helpline will be closed to taxpayers for several months. When will it reopen, and what should you do in the meantime?

HMRC’s self-assessment helpline (0300 200 3310) will be unavailable from 12 June until 4 September 2023. The agent dedicated line has previously been restricted (though the service resumed on 5 June), and the VAT registration helpline was also closed recently in an effort to divert staff to help clear backlogs in other areas. This latest move shows just how much pressure HMRC is under in relation to staffing. It should be noted that the summer is typically a quieter time for tax return filing, and the helpline will be open again in time for the traditionally busier autumn and winter months, but it's issued some guidance on where to find help online in the meantime:
- Registration
- Checking if a tax return is needed
- Ordering paper self-assessment forms; and
- Accessing the extra support team.
If you've been issued with a tax return but don’t meet the criteria that require one to be filed, you (or your authorised agent) need to formally request that it be withdrawn. This can’t be done online via the personal tax account, so you will either need to write a letter or use the HMRC webchat service.
Related Topics
-
VAT reduced on advance payment if customer cancels?
A subscriber to our newsletter wrote to us with a query. The business supplies a three-stage training course to students that fully pay (non-refundable) in advance for all three stages. If the students drop out before the end, can our subscriber partly reduce the VAT paid to HMRC on their return?
-
HMRC scrutinising directors’ loans
HMRC has begun a new compliance campaign targeting company directors who owed their companies money. What’s the full story, and how should you respond?
-
New two-tier mileage rates for electric vehicles
The amount that employers can reimburse staff for business travel in company cars changes from 1 September 2025. What are the new rates, and why is this update different to previous ones?