Accounting Blog

Learn what purchase orders are, how they work, and why they matter for buyers and suppliers. This guide explains key PO details, purchase order numbers, invoices, quotes, receipts, common mistakes, best practices, and how Invoice24 can support smoother invoicing, clearer records, faster payment approval, and better business purchasing control overall.

Learn what a proforma invoice is, when to use one, and how it differs from quotes, estimates, and commercial invoices. This guide covers tax, payment terms, legal status, common mistakes, and how invoice24, a free invoice app, helps freelancers and small businesses create professional proforma invoices quickly and easily online.

Learn what a business quote is, how it differs from an invoice or estimate, and what to include in a professional quote. This guide explains quote numbers, expiry dates, legal considerations, follow-ups, and how invoice24 helps small businesses create clear, accurate quotes that customers can accept with confidence online easily.

Learn what an invoice is, why it matters, and how to create professional invoices that help businesses, freelancers, and contractors get paid faster. Discover key invoice details, payment terms, common invoice types, and how a free invoice app like invoice24 can simplify billing, improve organisation, and support healthier cash flow.

Understand UK VAT with this practical guide for small businesses, freelancers and limited companies. Learn when to register, how VAT rates work, what to include on VAT invoices, how to reclaim input VAT, manage returns and improve cash flow using invoice24’s free invoicing app for clearer records and easier compliance.

Learn how to calculate VAT in the UK, including adding 20% VAT, removing VAT from inclusive prices, handling 5% and 0% rates, discounts, invoice lines, expenses, and VAT returns. Invoice24 helps freelancers, sole traders, startups and small businesses create clear, accurate VAT invoices quickly, reducing admin and common calculation mistakes.

Learn what a credit note is and when to issue one for invoice corrections, refunds, returns, discounts and overcharges. This guide explains credit note examples, required details, tax considerations, bookkeeping benefits and best practices for freelancers, small businesses and anyone managing customer invoices with invoice24 quickly, clearly and professionally online.

Understand how much tax you pay in the UK, from Income Tax and National Insurance to VAT, Corporation Tax and dividends. This practical guide explains allowances, tax bands, self-employed profits, limited company rules, expenses and bookkeeping tips to help employees, freelancers and small business owners plan confidently ahead of deadlines.

Learn how to calculate profit accurately by subtracting costs from revenue, understanding gross, operating and net profit, and tracking margins. This guide explains formulas, examples, invoice profit, product and service profit, discounts, tax, cash flow, and how organised invoicing with Invoice24 supports smarter business decisions for freelancers and small businesses.