FlashBill Blog

Guides for UK Tradespeople

Plain-English guides on CIS, VAT, invoicing and HMRC for UK sole traders and contractors.

All CIS VAT Invoicing HMRC Guides
HMRC

Making Tax Digital for Sole Traders: What You Need to Know

Making Tax Digital for Income Tax explained for UK sole traders. When it applies, what you need, and how to prepare for MTD ITSA.

4 min read HMRC

UTR Number: What It Is and Why You Need It on Your Invoices

What is a UTR number, where to find yours, and when to include it on UK invoices. Essential reading for sole traders and CIS subcontractors.

3 min read HMRC

Late Payment Act UK: How to Charge Interest on Overdue Invoices

How to use the Late Payment of Commercial Debts Act 1998 to charge interest on overdue invoices. Current rate, how to calculate it, and how to enforce it.

4 min read HMRC

Self Assessment for Sole Traders: A Plain-English Guide

Complete guide to Self Assessment for UK sole traders. What to report, key deadlines, how to reduce your tax bill, and what happens if you file late.

5 min read