Muswell Hill · N10
Accountants in Muswell Hill
Chartered accountants for N10 — independent shops on the Broadway, freelancers and creative businesses, and the landlords and professionals who live here.
Muswell Hill has an independent high street of a kind that has largely disappeared elsewhere in London, and an unusual concentration of people working for themselves — writers, designers, producers, therapists, consultants. Freelance tax is its own discipline: irregular income, expenses that are genuinely part business and part personal, and payments on account that arrive at exactly the wrong moment.
We act for sole traders and limited companies across N10 and Fortis Green, and for the independent retailers on the Broadway.
Freelance & self-employed
Returns, expenses and payments on account explained properly.
Independent retail
Bookkeeping, VAT and payroll for shops and small premises.
Limited company or sole trader
Modelled on your figures when the income becomes steady.
Cash-flow planning
So the January and July payments are not a shock.
Payments on account
In your first profitable year of self-employment the January bill includes half of next year’s tax as well, with the other half due in July. It is the same tax collected earlier, and it can be reduced if your income has fallen. How it works, and how to plan for it, is on our self-assessment page.
Expenses when you work from home
There is a flat rate that requires no records and a proportional method that usually gives more but needs the arithmetic and the evidence. Which is better depends on how much of your home you use and for how long. We will work out both rather than defaulting to the simpler one, and we will tell you where the line sits on the costs people most often get wrong — phones, broadband, and a car used for both.
Who we work with in Muswell Hill
The work here leans personal rather than corporate: self-assessment for employees with additional income, directors of companies based elsewhere, and landlords — a lot of landlords, some of them accidental ones who moved out rather than sold.
The two things that catch people are the restriction on finance costs, which stopped mortgage interest being a straightforward deduction, and the sixty-day deadline for reporting and paying capital gains tax on a residential sale. The second one carries automatic penalties and a surprising number of people meet it for the first time after completion.
Your council: London Borough of Haringey
It is grouped with Barnet constantly — in conversation, in agents’ listings, and in the way people describe where they live — but for anything administrative Muswell Hill is the London Borough of Haringey. If you are looking up a rates bill, a licence, a planning application or a licensing scheme for a let property, you are looking at the wrong council if you start with Barnet.
It is a small point that wastes a surprising amount of people’s time, and it puts Muswell Hill in the same administrative group as Crouch End, Hornsey, Harringay and Wood Green rather than with Finchley.
The N10 postcode is split between Haringey and Barnet, which is part of why the confusion persists; the council named on your business rates bill settles it.
Small business rate relief is set nationally and applied by the council: a business with one property whose rateable value is below £15,000 can get relief, and below £12,000 the relief is 100%. Taking on a second property can take it away from the first, so it is worth checking before you sign a lease rather than after the bill arrives.
When a side project becomes a business
A lot of what starts around here as something done at weekends — selling work, teaching, making, letting a room, reselling — grows to the point where it needs declaring, and the boundary is genuinely unclear to most people until someone draws it.
There is an allowance before anything needs declaring
A modest amount of trading income each tax year can be received without needing to be reported at all. Above it, you register and declare — and you can choose between deducting the allowance or deducting your actual expenses, whichever leaves you better off. There is a separate allowance for property income which works in a similar way.
Selling your own possessions is not trading
Clearing out a house and selling things online is not a business, and does not become one because the total is large. What changes the answer is buying in order to sell, making things to sell, repeating it systematically, and organising it the way a business would. Those are the questions actually asked, and the distinction matters because online platforms now report seller information to HMRC — so an unexplained pattern of receipts is visible in a way it was not a few years ago.
The point at which it is worth taking seriously
Register in the tax year you start, keep the costs from the beginning, and put money aside from the first payment. Doing those three things costs nothing while the activity is small, and it is the difference between a straightforward first return and reconstructing two years of records in January.
A self-employed accountant for Muswell Hill and North London
If you are self-employed in Muswell Hill, most of the calendar is fixed by HMRC rather than by you. Register for Self Assessment by 5 October after the end of the tax year in which you started. File online and pay the balance by 31 January, with payments on account due on 31 January and 31 July. Miss the filing date and there is a £100 penalty straight away, whether or not any tax is owed.
Making Tax Digital for sole traders
The bigger change is quarterly reporting. Since 6 April 2026, sole traders and landlords whose qualifying income is over £50,000 have had to keep digital records and send HMRC quarterly updates as well as the annual return. The threshold falls to £30,000 from April 2027 and £20,000 from April 2028. Qualifying income means turnover, not profit. So a freelance designer or therapist in N10 with modest profits but healthy fees can be brought in sooner than they expect.
We set up the software, keep the records, file the quarterly updates and the return, and tell you what to put aside. For everything else we cover, see our page for accountants in North London.
Getting to our office from Muswell Hill
Muswell Hill has no Underground station. The nearest are East Finchley and Highgate, both on the High Barnet branch of the Northern line, one and two stops from Finchley Central; the office is a short walk from there.
You do not have to come in: you can work with us entirely by phone, email and video call, and we respond within one working day.
Our services in Muswell Hill
The services we provide in Muswell Hill include VAT returns and registration, payroll and year-end accounts and corporation tax. Each has its own page with what is included and how we work.
Frequently asked
My income is irregular. How do I know what to put aside?
As a rough working rule, setting aside roughly a third of profit covers income tax and National Insurance for most basic-rate sole traders, but it depends on your total income and it is only a starting point. We will give you a figure based on your actual position and revise it when the position changes.
Can I claim for a laptop or camera I also use personally?
You claim the business proportion, and you need a reasonable basis for whatever proportion you claim. For a limited company the rules are stricter and the benefit-in-kind position matters, so it is worth asking before you buy rather than after.
Do I need to come to your office?
Not unless you want to. You can send documents electronically and we can speak by phone or video. If you would rather sit down with someone, our Finchley office is a short journey down from the Broadway.
What does an accountant cost?
We agree the fee in writing before any work starts, based on what your business actually needs. Simple sole-trader returns cost considerably less than a trading limited company with payroll and VAT.
Can you take over from my current accountant?
Yes, and it is straightforward. We write to them for professional clearance and your records, and handle the transfer of your HMRC authorisations. You do not need to have an awkward conversation — though it is polite to tell them.
Which borough is Muswell Hill in?
Haringey — not Barnet or Enfield like most of the areas around us. It matters for business rates, licensing and planning, and it is the most common local mix-up we see.
I rented out my old flat instead of selling. What do I need to do?
Register for self-assessment and declare the rental profit, and keep the dates: the period you lived there affects the capital gains position when you eventually sell, and a residential sale has to be reported and paid within sixty days of completion. Come to us before the sale rather than after.
Am I in Barnet or Haringey?
Haringey. Muswell Hill is commonly grouped with Barnet in conversation and in property listings, but administratively it is Haringey — which is the council for your business rates, licensing, planning and any property licensing scheme. Starting with the wrong one is a common and entirely avoidable waste of time.
I sell things online occasionally. Do I have to declare it?
Not necessarily. There is an annual trading allowance below which small amounts of trading income need not be reported, and selling your own second-hand possessions is generally not trading at all. It changes when you are buying or making things in order to sell them, and doing so with any regularity. Note that online platforms now report seller data to HMRC, so if you are near the line it is better to establish where you stand than to hope the question does not arise.
When should I start keeping proper records?
From the first sale, even when it clearly does not matter yet. Costs incurred before you formally start trading can usually still be relieved, but only with evidence, and the receipts you did not keep are the ones you will want. A folder and a spreadsheet is enough at the beginning — the point is that it exists from the start rather than being assembled from memory later.
Does Making Tax Digital apply to me as a self-employed person in Muswell Hill?
It does if your qualifying income is over the threshold for the year. That is £50,000 from 6 April 2026, £30,000 from April 2027 and £20,000 from April 2028. The test uses turnover from self-employment and property together, not profit. If you are in, you keep digital records and send quarterly updates as well as the annual return. We can tell you which year you join and set it up before then.
I have just gone freelance. When do I have to tell HMRC?
Register for Self Assessment by 5 October after the end of the tax year in which you started. The first return and payment are then due by 31 January. Register early anyway, keep your costs from day one, and set money aside from the first invoice.
Talk to an accountant near Muswell Hill
A short first conversation, no charge and no obligation — we will tell you what we would do and what it would cost.
Get in touchWe respond within one working day.
Local to you
Chartered accountants, just up the road.
We are based in Finchley and work across North London. Come in, call, or do the whole thing by email — whichever suits you.
Or call 07480 281548