Your personal tax return, handled
Self Assessment is how HMRC collects tax that isn't taken at source, so if you're a company director, sole trader, landlord or higher earner, you probably need to file one. We prepare and submit your return and claim every allowance. For sole traders and landlords now moving to Making Tax Digital for Income Tax, we handle the new quarterly filings too, in plain language and without the last-minute January panic.
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Your personal return prepared & filed with HMRC
Online filing deadline; we file well ahead
Salary, dividends & benefits reported correctly
Rental income & allowable expenses handled
When is the Self Assessment deadline?
Online returns and any balancing payment are due by 31 January following the end of the tax year, with payments on account due 31 January and 31 July. Payments on account don't apply if last year's bill was under £1,000 or mostly collected at source. Newly self-employed? Register with HMRC by 5 October.
Correct for the 2026/27 tax year · last reviewed September 2026 · Chris Sullivan ACA
Everything your personal return needs
If your income comes from dividends, self-employment, property or some mix of the three, we pull it all together into one accurate return.
Director's dividends & salary
We report your salary, dividends and benefits-in-kind correctly, dovetailing with your company's accounts and payroll so the figures always reconcile.
DirectorsSelf-employment & side income
Sole trader profits, freelance work and side-hustles: we calculate taxable profit, claim allowable expenses and apply the trading allowance where it helps.
Sole TradersRental & property income
Landlords: we handle rental profits, the finance-cost restriction and the property allowance, across single lets and portfolios.
LandlordsCapital gains
Sold a property, shares or other assets? We calculate the gain, apply reliefs and the annual exemption, and report it correctly.
CGTPayments on account
We explain HMRC's payments-on-account system so the January and July payments never catch you out, and reduce them where your income has fallen.
Cash FlowDeadline & penalty protection
We register you if needed, gather everything in good time and file before 31 January, keeping you clear of HMRC's escalating late-filing penalties.
Deadlines MetSelf Assessment, alongside your company
If you're a Lumi client, your director's personal Self Assessment return is included in every package — Lite, Core and Complete. For sole traders, landlords and anyone else who isn't on a package, we prepare standalone returns from £300 + VAT each.
All packages include a Xero subscription (our recommended software) unless specifically agreed otherwise. View full package details →
Because we already hold your company's payroll and dividend figures, your director's Self Assessment is quick for us to prepare and always agrees with your company accounts, with no chasing and nothing left to reconcile.
- Salary & dividends reported
- Benefits-in-kind included
- Covered by Lite, Core and Complete
- Figures reconciled to your accounts
- Business profit & allowable expenses
- Trading allowance applied
- Class 2 & 4 NIC calculated
- Standalone or with bookkeeping
- Rental income & expenses
- Finance-cost restriction
- Capital gains on disposals
- Multiple properties handled
All prices exclude VAT.
A Chartered Accountant in your corner
You deal directly with a qualified ICAEW Chartered Accountant, not a call centre or a different junior every year.
ICAEW Chartered & qualified
Your accounts are prepared and reviewed by a Chartered Accountant, the gold standard for technical accuracy and trust.
Plain English, always
We explain what your numbers mean and what to do about them, in everyday language, without pretending it's more complicated than it is.
Deadlines never missed
We work to your dates well in advance and chase what we need from you, so late-filing penalties simply don't happen.
Fixed monthly fee
Your accounts and tax are part of one transparent monthly fee. No hourly billing, and no year-end invoice shock.
Self Assessment, explained
Ready to stop dreading January?
Book a free 30-minute call. We'll work out what you need to file and take your Self Assessment off your hands for good.
Related guides
Clear, jargon-free reads for company directors and the self-employed.
Figures, thresholds and deadlines on this page reflect UK rules current at the time of writing and are general information, not advice for your specific circumstances. Please get in touch before acting.
