Email is the fastest way to reach us. We read every message and reply within a couple of working days.
Send any errors, calculator requests, partnership ideas, or feedback to:
[email protected]Corrections. If a tax band on a calculator doesn't match the current HMRC, SARS, or IRS figure, if a National Insurance threshold is out of date, if a contribution cap on a retirement page is wrong, or if a formula gives a result you can't replicate against the regulator's published worked example — please tell us. Every correction email gets a personal reply within 24 hours, and factual corrections normally go live within 48 hours of confirmation.
Source requests. If an article quotes a figure and you can't find the primary source it came from, email and we'll send the link. Every figure on the site is meant to be traceable; if a citation is missing or broken, that's a bug worth fixing.
Calculator requests. If there's a specific tool you'd find useful and there's a reasonable audience for it, we'll add it to the build list. Highest-demand requests get built first. We're more likely to build a calculator that solves a real cross-region problem (e.g. a tool that compares the same retirement saving rate across UK, US, and SA tax wrappers) than one that duplicates something already done well elsewhere.
Partnership inquiries. Embeddable widgets, guest posts, original-data studies, and link partnerships with relevant publications are all worth a conversation. The bar for any commercial partnership is the same as the editorial bar: the partner has to be aligned with the source hierarchy in the editorial policy and the disclosure rules on the disclosure page.
Anything else. Comments on a blog post, a thank-you, a debate about the 4% rule, a suggestion for a topic cluster we don't currently cover — we read it.
Typical reply time is within 48 hours, often much sooner. The site is run by one person (see the author profile), so during heavy periods — the post-Budget review window, the IRS-limits update cycle in January, the SA Budget update in February/March — replies can take an extra day or two. Every email is read. If you haven't had a reply within five working days, please send a follow-up — messages occasionally land in spam.
Urgent corrections (a clearly-wrong tax band, an article showing a figure that contradicts the regulator's current published value) jump the queue. If the email subject line starts with "CORRECTION", we'll prioritise it.
Emails sent to FinCalcHub are not added to any mailing list, marketing database, or contact-management tool. If you email asking a question, the only person who reads the email is the author of the site — not a customer-support team, not a virtual assistant, not an outsourced inbox. The email and any reply are kept for the time it takes to resolve the question and then archived to a personal email account that isn't connected to any commercial system.
If you've subscribed to the newsletter via the footer form, that's a separate opt-in stored in a separate system. Unsubscribing from the newsletter doesn't stop us replying to direct emails, and emailing us doesn't subscribe you to the newsletter. The two are kept deliberately separate.
FinCalcHub is informational and educational. There's a defined set of things we can't help with, and being clear about them up front is fairer than leaving the question unanswered.
If your question falls into one of the above categories, the right next step is to find a qualified adviser in your jurisdiction. For the UK, the FCA's register at register.fca.org.uk lists authorised firms; for the US, the SEC's adviser-search tool at adviserinfo.sec.gov does the same; for South Africa, the FSCA's register at fsca.co.za is the equivalent. The About page has more on what FinCalcHub does and doesn't do.
Helpful corrections share three things. First, a specific URL — pasting the link to the page you are looking at saves us five minutes of guessing. Second, the exact figure or sentence in question — "the personal allowance on the UK tax guide shows £12,500" is easier to action than "the UK page has wrong numbers." Third, the source you are comparing it against — citing the HMRC, SARS, IRS, or ONS page that contradicts ours lets us verify and update in one round trip.
For calculator requests, the more concrete the use case, the faster it climbs the build list. "A take-home pay tool that handles the SA Two-Pot withdrawal tax in real time" beats "a better SA calculator." Specific user stories — "I'm trying to decide whether to take an offer in London or Cape Town and need to compare net pay after rent" — help us prioritise the calculators that solve real cross-border problems rather than ones that duplicate existing tools.
The current build queue includes a UK Marriage Allowance optimiser, a South African Two-Pot withdrawal tax calculator that handles the marginal-rate plus administrative fee correctly, and a US ACA Marketplace premium comparison for early-retirement planning. We are also rebuilding the existing Retirement Savings calculator to handle DB pensions in payment, which is currently a gap in the UK and US versions. If any of these match what you'd find useful, an email saying so moves them up the priority list — we track demand signals from inbound emails alongside Search Console data when deciding what to build next.
On the editorial side, several articles are scheduled for refresh as soon as the relevant regulator publishes 2026/27 figures. The UK pieces typically update in late March after the Spring Budget, US articles in November after the IRS publishes the following year's contribution and bracket limits, and SA pieces in late February after Budget Speech and the SARS rates release. If a piece you rely on hasn't been updated within a month of a relevant regulator announcement, please email and we'll prioritise the refresh.
FinCalcHub's source hierarchy is published in the editorial policy: regulator publications (HMRC, SARS, IRS, ONS, SARB, Federal Reserve) first; primary research datasets (FRED, ONS Wealth and Assets Survey, US Survey of Consumer Finances) second; recognised industry publications (Fidelity, Vanguard, KFF, Sanlam BENCHMARK) third. Any figure that can't be traced to one of those tiers gets removed, not estimated. If a citation on a page links to a 404, an outdated page, or a paywall, that's another correction worth flagging — broken or stale sources erode trust as much as wrong numbers do.