Editorial policy

Last updated 1 September 2026.

Everything published here is written to be useful to somebody running a one person business, and is checked before it goes up. This page says how, including where software is involved.

Who writes it

One person. Jobi Cheriyan, who also builds the software and answers the support email. There is no content team, no contributor network and no agency, which is worth knowing because it means everything here carries the same judgement and the same responsibility for being wrong.

How a guide gets written

Each one starts from a question somebody actually has, phrased as a situation rather than as a search term. Not "invoice requirements" but "I have sent an invoice and it has not been paid and I do not know what to do next". A guide that serves every reader serves none, so each covers one.

Drafting is done with a large language model, working from an outline and a house style, and every draft is then checked line by line. That is stated plainly because the alternative is implying otherwise, and because the useful question is not whether software was involved but what was done about its weaknesses. What is done about them is the next two sections.

Arithmetic is computed, never estimated

Every figure in a worked example is calculated before it is written, and the calculation is run rather than reasoned about. A rate of £35 an hour over 1,242 billable hours is £43,470 because that multiplication was performed, not because it looked about right.

This matters more than it sounds. A language model will produce a figure that is plausible and wrong without any signal that it has done so, and a plausible wrong number in an invoicing guide is worse than no example at all. Where a figure cannot be computed from stated inputs, the inputs are stated or the claim is softened until it no longer reads as arithmetic.

Sources

Anything legal, tax related or regulatory is linked to a primary source: the government, the regulator, the statute. Not an aggregator, not another blog, not an encyclopedia.

Every external link is checked before it is published, for three things: that it responds, that it is the kind of document it is being cited as, and that the page actually contains the material being claimed. A link that has since rotted is a mistake we would want told about, and the contact form is the way to do it.

Jurisdiction

Tax, records and contract law differ by country, and a guide that hedges across all of them is useless everywhere. So anything in those areas names its jurisdiction in the opening paragraphs and stays in it. Most of it is England and Wales, because that is where the company is and where the rules can be checked properly.

None of it is legal, tax or accounting advice. It is written by somebody who builds invoicing software, not by an accountant, and where real money turns on a question the right answer is to ask somebody qualified where you are.

Corrections

Errors get fixed in place rather than quietly deleted, and a guide that has been substantially revised carries the date it was last revised next to the date it was published. Those are two different facts and showing only the first is a way of looking fresher than you are.

If something here is wrong, say so. A specific correction, with what it should say, gets acted on quickly.

Advertising, affiliate links, and what they cannot buy

There are no ads on this site today and no affiliate links in any guide. That may change. Writing this many guides takes time and the hosted parts cost money, and advertising is the ordinary way a free site pays for itself.

If it does change, four things hold regardless, and they are worth stating now rather than when there is something to justify.

An ad is marked as an ad. Advertising sits in its own space, distinguishable from what has been written, and never inside the argument of a guide. An ad network decides what appears in an ad slot. We do not, which also means an advertiser cannot buy a mention, a recommendation, or a position in anything published here.

Nothing is a sponsored post. No guide is commissioned, paid for, or reviewed by anybody outside this company, and no product appears in one because somebody asked. If that ever changes for a specific piece it will say so at the top of that piece, in the first line, not in a footer.

An affiliate link is disclosed where it appears. In the guide, next to the link, not only on a policy page nobody opens. It never changes what a guide recommends. The test we would apply is whether the same thing would be recommended with no commission attached, and if the answer is no, the link does not go in. Naming a useful product is worth doing without a link at all.

Your data is not part of any of it. No advertiser, broker or data buyer receives your figures, your prices or your clients' details, and nothing you type into the app is used to target anything. That one is not a position that gets revisited when the money is tight. It is the reason the app keeps your work on your own device to begin with.

Where a guide mentions Plain Estimate, it is because the argument reached something the software does. Every guide is written to be useful to somebody who never installs it, and that does not change if there is an ad next to it.

How the company itself is funded is set out on the company page.