UK Tax Help Centre
Deadlines, allowances, HMRC letter explainers and free calculators - bookmarked by hundreds of NW London business owners and landlords.
Tax deadlines
Key UK tax filing and payment dates so nothing slips. Set calendar reminders 14 days ahead.
HMRC letters explained
What an SA316, P800, Simple Assessment or Code of Practice letter actually means.
Free calculators
Stamp duty (SDLT) and PAYE take-home calculators: no sign-up needed.
Penalty regime
How HMRC's points-based late filing penalties work, and how to appeal.
Income tax rates
Current bands, allowances and reliefs for England, Wales and Northern Ireland.
Useful HMRC contacts
Phone numbers and opening hours for self-assessment, VAT, PAYE and agent lines.
Key UK tax deadlines
2025/26 dates for self-assessment, payroll, VAT and corporation tax.
Key allowances & thresholds 2025/26
England, Wales & Northern Ireland. Scotland has different income tax bands.
Personal allowance
£12,570
Higher-rate threshold
£50,270
Additional-rate threshold
£125,140
Dividend allowance
£500
CGT annual exemption
£3,000
VAT registration threshold
£90,000
Trading & property allowance
£1,000 each
Marriage allowance transfer
£1,260
