Invoice Koi Free generator

Invoicing, written down

Plain guides to writing an invoice, pricing the job and getting paid, each one checked against what the app and the generator actually do.

01Everything so far
· 7 min read Duplicate invoice book or an app: what the carbon copy gets right A numbered page, two copies from one writing, and no signal needed. What the paper costs you later, which of the three a phone can match, and when to keep the book. Invoice KoiInvoicing for the trades · 9 min read The VAT threshold: £90,000 over any twelve months, not the tax year The £90,000 test is the last twelve months, read at every month end. What counts towards it, when you have to register, and what changes on your invoices. Invoice KoiInvoicing for the trades · 13 min read Letter before action: the last letter before a court claim for an unpaid invoice What the debt rules say the letter must contain, the 30 days a customer gets to reply, a template to fill in, and what a small claim costs if it comes to that. Invoice KoiInvoicing for the trades · 10 min read Late payment statistics: how long big UK firms take to pay Every large UK company’s own payment report, read: how long the typical one takes, how many invoices are paid late, who holds retentions, and the trend since 2018. Invoice KoiInvoicing for the trades · 11 min read Payment terms: the line on the invoice that decides when you get paid What Net 7, 14 and 30 mean, the 30 day default when nothing was agreed, which terms suit which customer, and how to print a due date nobody misreads. Invoice KoiInvoicing for the trades · 10 min read What a VAT invoice has to show, and when a simpler one will do HMRC’s eleven items, the tax point and which date to print, when a simplified invoice will do, and a worked VAT invoice with the figures in. Invoice KoiInvoicing for the trades · 16 min read Reverse charge invoice example: how to write one for construction work When the construction VAT reverse charge applies, the wording HMRC accepts, and a worked invoice that shows the VAT without asking for it. Invoice KoiInvoicing for the trades · 6 min read How to invoice under CIS: labour, materials and the deduction What the CIS deduction comes off, why labour and materials belong in separate sections, and a worked invoice with 20% taken from the labour. Invoice KoiInvoicing for the trades · 9 min read Self-employed expenses: what you can claim, and how to prove it HMRC’s list of allowable costs, the grey areas like the van and the phone, and why the receipt behind each claim is kept the day you pay. Invoice KoiInvoicing for the trades · 4 min read How to make an invoice for free and save it as a PDF Create a free invoice without signing up. Follow a worked example, save a PDF, check the totals, and keep a copy before clearing your browser. Invoice KoiInvoicing for the trades · 7 min read A simple UK invoice example you can copy and adapt An example of a UK invoice for one small job, in pounds: line items, dates, payment instructions and a total you can check, then a blank outline to copy. Invoice KoiInvoicing for the trades · 5 min read Invoice email templates for sending and following up An invoice email template to copy for sending, the due date and a follow-up, a short invoice message for text or WhatsApp, and how to attach the invoice. Invoice KoiInvoicing for the trades · 3 min read How to choose an offline invoice app Seven things to test without signal, the parts that honestly still need a connection, and a free way to inspect the finished PDF. Invoice KoiInvoicing for the trades · 3 min read Invoice software without an account What should work before registration, when an account becomes useful, and what to check about privacy, export and recovery. Invoice KoiInvoicing for the trades · 6 min read The quote template that becomes the invoice A quote is the document the invoice has to agree with. What carries across when it is accepted, and why converting the same one twice is refused. Invoice KoiInvoicing for the trades · 8 min read How to invoice as a sole trader Nine things belong on the document and the rest is presentation. What they are, how to number and date them, and the terms that get the thing paid. Invoice KoiInvoicing for the trades · 5 min read Is Invoice Koi free? What costs nothing, what needs a subscription, who decides about a free trial, and what you keep if you stop paying. Invoice KoiInvoicing for the trades
02Examples and comparisons

Invoice templates with a worked job on them, for the work people ask about most: plumber, electrician, photographer, videographer and tutor. All 35 trades are on the templates page.

Choosing an app? Invoice Koi is compared with 12 others feature by feature, including Invoice Fly, Joist and Square Invoices, with where each of them wins.

03 · While you are here

Try it on a real invoice.

Make an invoice free

On Google Play now. Coming soon to iPhone. Have the app? Open it