Terms of use

TaxWedge publishes arithmetic performed on publicly available tax rates. It is provided for information and does not constitute tax, financial or legal advice, and no relationship of adviser and client is created by using it.

Every reasonable effort is made to keep the rates current and the arithmetic correct, and the method and sources are published so that both can be checked. Even so, the figures may not reflect your circumstances: a non-standard tax code, benefits in kind, more than one job, or income that is not employment income all change the answer. Verify anything that matters against HMRC or a qualified adviser before acting on it.

The computed tables published here are available under CC BY 4.0. The underlying rates are Crown copyright, available under the Open Government Licence.

Corrections are welcome and are published: corrections@taxwedge.com

What this site is, in the sense that matters legally

TaxWedge is a published set of computations. It takes the income tax, National Insurance and student loan parameters that Parliament and the Scottish Parliament have set for the tax year named at the top of every page, applies them arithmetically to a figure you choose, and shows the working. It is information in the same sense a published rate table is information. It is not a service, it does not form a relationship with you, and nobody here knows you have used it.

That distinction is not a disclaimer bolted on at the end. It shapes what the site can and cannot be relied on for, and the rest of this page is an attempt to be specific about that rather than to defend against you.

Not tax advice, and what that actually means

Tax advice is a regulated activity in the United Kingdom when it is given by a person who knows your circumstances and takes responsibility for the conclusion. Nothing here does either. The calculations assume a single employment taxed through PAYE on the standard tax code, with employment income only, and they say so on every page that makes one. They do not know whether you have a second job, a benefit in kind, a tax code carrying an adjustment from a previous year, income from property or dividends, a pension already in payment, or any of the dozens of other things that move a real tax bill.

The practical consequence: a figure on this site is a correct answer to a question that may not be your question. It is a good way to understand the shape of the system, to compare two scenarios, and to check whether a payslip is roughly where you would expect. It is not a substitute for HMRC's own estimator, for your payroll department, or for an accountant who has seen your papers.

Accuracy, and the limits of the checking

The arithmetic is tested. The engine's discovered band boundaries are asserted against the published statutory thresholds, so a mistyped parameter fails the build rather than shipping quietly, and the method is written out at /method/ so that the working can be checked rather than trusted. That is a real guarantee about a narrow thing: that the numbers on the page follow from the parameters in the data file.

It is not a guarantee that the parameters are current, that the interpretation of a rule is the one HMRC would apply to you, or that a rule has not changed since the page was generated. Rates change at the start of a tax year and occasionally in-year. Every page states the tax year it applies to. If that year is not the one you are asking about, the figures are wrong for your purposes even though they are right for theirs.

Errors are possible and some have already happened; they are published rather than quietly corrected, at /changes/. If a figure here disagrees with your payslip and none of the usual explanations fit, that is worth an email to corrections@taxwedge.com.

Liability

To the extent permitted by law, this site is provided as it is, without warranty, and no liability is accepted for any loss arising from reliance on it. That is the standard formula and it means what it says, but it is worth being plain about the spirit as well: this is a free, no-account, no-tracking publication of arithmetic, and the appropriate level of reliance is the level you would place on a well-made reference table, not on a professional you have retained. Nothing in these terms affects any right you have under consumer law that cannot be excluded.

Using the site, and reusing what is on it

You may use TaxWedge for any lawful purpose, personal or commercial, without asking. There is no account to create and no licence to accept before reading a page. You may not attempt to disrupt the site for other people, and automated crawling should be reasonable — the whole site is static, so a normal crawler is welcome and a request flood is simply rude.

The computed tables, and the marginal-rate band lists in particular, are published under CC BY 4.0: reuse them, including commercially, with attribution to TaxWedge and a link. The underlying statutory rates are Crown copyright and are separately available under the Open Government Licence. The prose and the design are not covered by that grant.

Links out

Pages link to GOV.UK, to HMRC guidance and to the Scottish Government where those are the source for a figure. Those sites have their own terms and their own privacy practices, and following a link takes you out of this one. Where a link is ever commercial, it is disclosed as such on the page it appears on and listed at /disclosure/; at the time of writing there are none.

Changes to these terms

If these terms change materially, the change is recorded on /changes/ with the date, in the same log as corrections to figures. There is no mailing list to notify, because there is no mailing list.

Law

These terms are governed by the law of England and Wales. If you are a consumer resident elsewhere in the United Kingdom, you keep the benefit of any mandatory protections of your own jurisdiction.

Contact

General enquiries: contact@taxwedge.com. Corrections to a figure, which are the most useful thing anyone sends: corrections@taxwedge.com.

Availability

There is no uptime commitment. The site is static and served from a content delivery network, which makes it unusually reliable for something with no operations team behind it, but nothing here is promised to be available at any particular moment. If a page will not load, the underlying rates are all on GOV.UK and HMRC's own estimator will answer the take-home question.

If you build on this

Some people will want to reuse the computed band tables in their own work, and the CC BY licence above is meant to make that straightforward. Two practical notes. First, quote the tax year with the figures — a marginal band list is meaningless without one, and the most common way reused tax data goes wrong is that it outlives the year it describes. Second, if you reuse a table, reuse the caveats with it: the assumptions listed on the page are part of what makes the numbers true, and a band list republished without them is a stronger claim than the original made.

Accessibility

The site is built to be usable with a keyboard and a screen reader, and the calculators work without a mouse. If something here is not reachable, that is a defect rather than a limitation — please report it to contact@taxwedge.com.

No account, no sign-in, nothing to cancel

There is nothing to subscribe to and no account to close, so there is no cancellation process and no data to delete on request beyond email correspondence. That is worth stating explicitly because these terms are otherwise the standard shape, and the standard shape usually implies a relationship that does not exist here.