Utilisation and effective rate
The two numbers your year is built on, tracked rather than guessed.
Professional services and freelance creatives
You are the product, and the product takes holidays
Capacity is fixed and income is not. Two numbers explain nearly everything — what you charge a day and how many days somebody actually pays for — and most people have never worked out the second one.
What you get
- Utilisation and effective day rate tracked
- A set-aside percentage from your own numbers
- Invoices raised and chased automatically
- Your return finished months early
- The company question modelled properly
- One fixed monthly fee
The numbers that decide it
Four figures worth knowing by heart
Four numbers decide an independent year. The first is the one nobody calculates.
UtilisationBillable days against available days
~25%Of turnover, typically, to keep back for tax
50%Of this year's tax, again, on account
Apr 2026MTD for Income Tax above £50,000
2026/27 figures. See key tax dates and the calculators for the full picture.
Your year
Five filing dates and one that actually pays
Every date here except the monthly one is an obligation. The monthly one is the only thing on the list that changes what you earn.
6 AprilNew tax year. Everything invoiced from here belongs to the next return.
Every monthBillable days counted. It is the only leading indicator you have.
5 OctoberRegister for Self Assessment in your first year.
31 JanuaryReturn, balancing payment and first payment on account.
31 JulySecond payment on account.
April 2026 onwardsQuarterly MTD updates once qualifying income is over £50,000.
Source: gov.uk Self Assessment and Making Tax Digital guidance, checked July 2026.
The thing that makes it different
You are the product, and the product takes holidays
When the business is one person's time and judgement, capacity is fixed and income is not. A quiet month is not a blip in a trend, it is a month you cannot get back, and the only two levers you have are price and how much of your time reaches a paying client.
That makes the numbers unusually simple and unusually important. Utilisation and day rate between them explain almost everything, and most people in this position have never worked out either.
The tax side is mostly about timing rather than rates: money that arrives in lumps against bills that arrive monthly, a payment on account nobody warned you about, and from April 2026 quarterly reporting under Making Tax Digital.
The detail that decides it
What actually moves the numbers when you are the business
When the business is you, the problems are almost always about timing and structure rather than about rates.
- Payments on account, in year two
- The first profitable year produces a tax bill and then, in the same January, the first payment on account of the next year. That is 150% of the tax in one go, and it is the single most common cash shock for the newly self-employed. Knowing it is coming a year ahead is the entire fix.
- Sole trader or limited company
- There is a level of profit above which a company is usually better, and it is lower than most people assume once you account for what you actually need to draw. Against that: more filing, more scrutiny, money that is no longer yours to take freely, and a cost to unwind it.
- Utilisation is the whole business
- Billable days against available days. Most independents discover they are at 55–65% and had assumed 80%, which explains the gap between the day rate they quote and the income they see.
- Irregular income needs a system, not willpower
- Moving a fixed percentage of every receipt into a separate account the day it lands is worth more than any planning advice we could give. It turns January from an emergency into a transfer.
- Making Tax Digital is coming to you first
- Sole traders and landlords with qualifying income over £50,000 move to quarterly digital reporting from April 2026, £30,000 from April 2027 and £20,000 from April 2028. Independents are squarely in scope.
The number nobody works out
What your day rate actually earns you
A £600 day rate, honestly counted
Two hundred and thirty working days in the year after weekends, holiday and bank holidays. The question is how many of them somebody pays for.
- Working days available
- 230
- Days lost to sales, admin, invoicing, proposals and training
- −72
- Days actually billable
- 158
- At £600 a day
- £94,800
- Utilisation — 158 of 230
- 69%
- Effective rate per working day
- £412
The £600 is real and so is the £412, and the second one is what your year is actually built on. Ten more billable days is £6,000; a £50 rate rise on the same utilisation is £7,900. Both are easier decisions once the number exists.
Worked through at 2026/27 rates from our own calculators, which follow gov.uk guidance checked in July 2026. An example, not advice — your figures will differ.
What we do about it
Simple business, done properly
A set-aside percentage
Worked from your own figures, so January is a transfer rather than an emergency.
Invoices raised and chased
From the same place the bookkeeping lives, with reminders that go out without you having to be the bad guy.
The return, finished early
With the figure and both payment dates in writing, months before January.
The company question, when it is real
Modelled on what you need to draw rather than on what you invoice.
MTD, handled
Digital records and quarterly updates from the year it applies to you, without you learning a new system.
Questions
What people in this trade ask us
How much does it cost?
A fixed monthly figure agreed in writing after a 30-minute discovery call. For most freelance creatives the engagement is straightforward — bookkeeping, the self assessment return, VAT if you are registered — so the quote is simple and the drivers are transaction volume and whether you operate as a sole trader or through a company. FreeAgent is included, worth up to £330 a year, which for a freelancer is a meaningful chunk of the fee back. Questions carry no hourly charge.
How do I handle income that swings wildly month to month?
With a reserve rather than a forecast. Move a fixed percentage of every payment received into a separate tax account on the day it lands — not at the month end, when it has usually been spent — and hold a buffer of two to three months of personal costs on top. Tax, VAT and rent arrive on a schedule that ignores the uneven months. That single habit prevents most freelance cash crises, and it needs no software or advice to start.
Why was my first tax bill so much bigger than expected?
Because payments on account land at the same time. In your first full year you pay the tax for that year by 31 January plus a first payment on account for the next year — commonly half the bill again — on the same date, then a second on 31 July. A £6,000 liability can therefore mean £9,000 leaving the account in January. It is timing rather than a penalty. If income has genuinely fallen you can apply to reduce the payments, within limits.
What can I claim for kit, software and workspace?
Equipment such as cameras, computers and instruments, software subscriptions, professional insurance, portfolio and website costs, and the business proportion of home working. Where kit is used privately as well, claim the business proportion on a defensible basis rather than a round number. Co-working memberships and studio hire are allowable. Everyday clothing is not, even for on-camera work. Training that maintains an existing skill is generally allowable; training that qualifies you in something new is often treated as capital and disallowed.
Who owns the copyright in work I deliver?
You do, by default, unless you have assigned it in writing. A licence and an assignment are different things: a licence lets the client use the work on agreed terms, an assignment hands ownership over permanently. Decide deliberately which you are selling and price accordingly, because a full assignment is worth more than a limited licence. Get it in your terms rather than arguing about it after delivery. See legal services.
What do I do about clients who pay late?
Put terms in writing before you start, invoice the day the work is delivered, and chase on a schedule rather than when you notice. You are entitled to statutory interest and fixed compensation on late commercial payments, and simply stating that on the invoice changes behaviour more often than people expect. For persistent offenders, a deposit up front or staged payments is a better answer than a stricter chasing process.
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