The InvoiceAdept blog.

Boiler service invoice template UK (2026): CP12, service plans and VAT

A servicing-and-maintenance billing guide for UK gas engineers: annual boiler services, landlord gas safety records and CP12 paperwork, letting agent purchase orders and portfolio billing, service plans and recurring invoices, callouts, out-of-hours and abortive visits, the parts/labour split when a service becomes a repair, and where CIS, the domestic reverse charge and the right VAT rate actually apply. Five worked examples, all illustrative.

Deposit Invoices for Tradespeople: How to Take One (UK)

How UK tradespeople take deposits safely: what to put on a deposit invoice, how much to ask for, and how to handle deposits for materials and bigger jobs.

CIS invoice template UK (2026): 20%/30% rates, labour vs materials, worked example

CIS invoice template UK: copy-paste fields, 20% vs 30% worked example, materials at direct cost, householder no CIS, VAT £90,000. Records not filing.

MTD for Sole Traders 2026: Deadlines, Rules and Free Software

MTD for Income Tax is live: sole traders earning over £50,000 must send quarterly updates; £30,000+ join in April 2027. Deadlines and penalties explained.

Sole trader simplified expenses: when they save you money

Allowable expenses for UK gas engineers (2026): Gas Safe, mileage and Class 4 NI

UK gas engineer allowable expenses for 2026/27: wholly and exclusively, Gas Safe (not NICEIC), 55p/25p mileage, Personal Allowance £12,570, Class 4 NI at 6%/2%, 5-year records, VAT £90,000. InvoiceAdept does not file Self Assessment.

Free MTD software for sole traders 2026: what actually counts

Genuinely free HMRC-recognised MTD ITSA software exists - confirm on GOV.UK. Thresholds from 6 Apr 2026. InvoiceAdept invoices only (Free: 5); it does not file MTD.

CIS vs PAYE UK (2026): employment status, 20%/30% deductions and payroll

CIS vs PAYE is status first, not a tax menu. Contractor withholds 20%/30%. VAT £90,000. InvoiceAdept does not file CIS300 or run PAYE.

Payment on Account for UK Self-Employed Explained

Discover what payment on account means for UK self-employed individuals in 2026. Avoid pitfalls.

When to Register for VAT as a UK Plumber

Discover when a UK plumber should register for VAT in 2026, ensuring compliance and maximising your financial efficiency.

How to set up MTD-compatible digital records from scratch

Get ready for MTD ITSA with a comprehensive guide on setting up digital records for UK tradespeople, including software options and submission tips.

Tradesperson Tax Return Guide UK 2026

Discover the essential steps for UK tradespeople filing their 2026 tax returns. Avoid common mistakes and stay compliant.