Permanent increase to penalty interest rates
The new tax year saw a change to the way interest on late paid taxes is calculated. What’s changed and what are the new charges?
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Is it really the end of tax relief for homeworking?
In her 2025 Budget the Chancellor announced the end of tax deductions for “non-reimbursed homeworking expenses”. How might the loss of the deduction affect you and is there an alternative tax relief you can take advantage of?
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HMRC threatens bogus penalties
Correspondence from HMRC suggests there's a penalty if you don't pay your self-assessment tax bill by Saturday, 31 January. This isn't strictly true, but what are your options if you can't pay on time?
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HMRC updates guidance for claiming new allowance
Qualifying expenditure on plant and machinery can qualify for a 40% first-year allowance from 1 January 2026. HMRC has now updated its guidance to help make claims. What do you need to do?
Prior to 2025/26, interest was charged at the Bank of England base rate plus 2.5% on most underpaid taxes. In a push for unpaid tax bills to be settled, it was announced at the 2024 Autumn Budget that this would change to the base rate plus 4% from 6 April 2025. The government says the rate of late payment interest encourages prompt payment and ensures fairness for those who pay their tax on time.
From 6 April 2025 the following rates apply:
- Late corporation tax paid quarterly - 7%
- Late payment interest on other taxes - 8.5%
There is no corresponding change to the way repayment interest rates are calculated, i.e. the base rate minus 1%, with a lower limit of 0.5%.





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