Make sense of your tax
Tax is full of jargon and quiet traps. We write it down clearly — sourced from HMRC, the IRS and the research bodies — so you can make confident decisions and keep more of what you earn.
Interactive 30–60s walkthroughs of the real jobs — file a return, build accounts, connect HMRC — start to finish.
Deep, current walkthroughs of MTD, Self Assessment, Corporation Tax, Companies House and pensions.
Short, practical reads on the £100k trap, salary sacrifice, buying a home and more.
249 tax & accounting terms explained in plain English — every term we use, defined.
Flight plans
Watch AI TaxPilot do the whole job, end to end, in under a minute.
File your Self Assessment
From a blank return to filed-with-HMRC in one sitting — your figures pulled in, the maths checked, the SA100 submitted.
Build & file your company accounts
Turn a year of bank transactions into FRS 105 micro-entity accounts and file the iXBRL to Companies House — without a spreadsheet in sight.
File your Corporation Tax (CT600)
Carry your accounts into the CT600, let us handle marginal relief and the adjustments, and file the return plus computation to HMRC.
Connect HMRC and pre-fill everything
One secure connection pulls your tax record into AI TaxPilot — and pre-fills every calculator and wizard, with each figure tagged to its source.
Run a Tax Health Check
A 30-second scan of your allowances and reliefs that scores your position and surfaces the savings — and the risks — you’d otherwise miss.
Get your US federal return ready
Pull in your income, run the federal, state and self-employment math, and walk away with a filing-ready 1040 summary you can e-file or hand to your preparer.
Model the S-Corp election
See whether electing S-Corp status actually saves you money — after reasonable compensation, the QBI interaction and your state’s costs, not just the headline FICA number.
Set up & max your HSA
Check you’re eligible, find your contribution room, and use the only triple-tax-advantaged account in the US tax code the way the pros do.
Submit an MTD quarterly update
Making Tax Digital means four updates a year instead of one return. We total the quarter from your bank feed and send it to HMRC in a couple of taps.
File your confirmation statement
The yearly CS01 just confirms your company details are still correct. Synced from Companies House, it’s a two-minute job — not a tax return.
Plan your US quarterly estimates
No employer withholding your tax? We project the year, size the four estimated payments to hit safe-harbor, and keep April from biting.
Do a backdoor Roth IRA
Earn too much to fund a Roth directly? The backdoor route is legal and simple — but the pro-rata rule and Form 8606 trip up people who skip a step.
Submit your VAT return
Connect HMRC for MTD VAT, build the nine boxes from your bank feed, and submit your VAT return in a couple of taps.
File your property income
Bring in your rents and costs, get the finance-cost restriction right, and file your SA105 property pages with the rest of your return.
Guides
The big picture, explained end to end.
Making Tax Digital for Income Tax: the complete guide
Who is in scope, the April 2026/2027/2028 timeline, quarterly updates, the Final Declaration and the new penalty regime.
Self Assessment: the complete guide
Who must file, registration and deadlines, payments on account, the supplementary pages, penalties and the 2025-26 allowances.
Corporation Tax & the CT600: a director's guide
Rates, marginal relief, associated companies, capital allowances, losses, R&D relief and the deadlines every limited company must hit.
Companies House filing: accounts, confirmation statements & ECCTA
The three things every company must file, the new 2025 size thresholds, deadlines, late-filing penalties and the identity-verification changes now live.
Pension tax relief & allowances: the complete guide
How relief actually reaches your pension, the £60,000 annual allowance and taper, carry forward, and life after the Lifetime Allowance.
US federal income tax: a 2025–2026 guide
Brackets and the standard deduction, marginal vs effective rates, FICA, retirement accounts, capital gains and the OBBBA changes.
US retirement accounts: the complete guide
401(k), IRA, HSA and the rest — limits, phase-outs, the SECURE 2.0 super catch-up and OBBBA changes for 2026.
US capital gains: long-term, short-term, NIIT & harvesting
The 0/15/20% rates, the unindexed 3.8% NIIT, qualified dividends, the wash-sale rule and tax-loss harvesting.
US state income tax: who taxes what
The nine no-tax states, flat vs graduated rates, who actually gets to tax you, the remote-work convenience rule, and the SALT cap after the One Big Beautiful Bill.
UK ↔ US tax: a cross-border guide
Citizenship-based taxation, the FEIE vs the Foreign Tax Credit, FBAR & FATCA, the PFIC and ISA traps, pensions, and how to come into compliance.
From the blog
Practical reads for real money moments.
The £100,000 tax trap
Why earning between £100,000 and £125,140 can cost you 60p in tax on every extra pound — and how to climb back out.
Salary sacrifice, explained
Swap salary for pension or an electric car and save National Insurance on top of income tax — but watch the small print.
Are you leaving higher-rate pension relief unclaimed?
Relief at source only adds 20% at the pump. Higher and additional-rate taxpayers have to claim the rest — and millions never do.
Buying a home: the true costs (including tax)
Stamp duty is only the start. Here is everything that lands between an accepted offer and the keys — across England, Scotland and Wales.
Saving for your children's future
Junior ISAs, junior pensions and the £100 rule — how to give children a tax-free head start and avoid the traps.
The HSA: the triple tax advantage explained
Deductible going in, tax-free growth, tax-free withdrawals. The most under-used account in US tax — used right, it can beat your 401(k).
S-Corp vs Sole Proprietor: when does the election save tax?
The 15.3% SE-tax saving is real — but reasonable comp, QBI and state rules can shrink or wipe it out. Here's the math.