If you run a limited company, Corporation Tax isn’t something you just deal with once a year. It builds up as the year goes on, based on the decisions you’re making around profit, spending, and how you take money out of the business.
What we see quite often is that everything gets reviewed at the end. The accounts are prepared, the tax is calculated, and that’s when the full position becomes clear. By that point, there’s usually not much that can be changed.
At Archimedia Accounts, we work with you during the year, not just at filing time. We keep an eye on how the numbers are shaping up, talk through decisions as they come up, and make sure your Corporation Tax position is understood before it’s finalised.
From a compliance side, we handle the full process properly. That includes preparing and submitting your CT600, making sure everything ties back to your accounts, and dealing with HMRC where needed. Most of our clients are looking for limited company accountants, where Corporation Tax sits alongside the wider financial picture rather than being dealt with in isolation.
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Is Your Corporation Tax Working Against You?
With most limited companies, Corporation Tax just ends up being whatever drops out of the accounts at the end of the year.
You’ve been trading, money’s coming in, costs are going out, and you’ve got a rough sense of how things are going. Then the accounts are finalised and the tax figure lands, sometimes higher than expected, sometimes due sooner than you’d planned for.
It’s not usually one big decision that causes it. It’s a mix of things across the year. Profit left sitting in the business, drawings taken without much thought to the overall picture, or spending that’s happened at the wrong time from a tax point of view.
Most of the time, the return itself isn’t the problem. It’s been filed, it’s accurate, but when you actually look at the number, there hasn’t been much thought around how it got there or whether it could have been different.
If you want Corporation Tax to feel a bit less reactive and more thought through, it’s worth looking at it as part of your wider approach with business tax accountants, rather than something that only gets attention once everything’s been finalised.
How We Handle Corporation Tax
In most businesses, the tax number just falls out of whatever’s happened during the year. You’ve invoiced, spent money, taken drawings or dividends, and then at the end someone turns that into a CT600 and tells you what you owe.
What we do is keep a running handle on it while those decisions are being made. That only works if the books are kept properly and up to date, so we stay close to the numbers through bookkeeping services and a system like Xero cloud accounting. Not for the sake of it, but because it means you’re not guessing.
Whether to leave profit in the company or take it out, whether to bring spend forward or hold it back, how it all feeds into the tax bill rather than looking at it in isolation. Sometimes it changes what you do, sometimes it just gives you clarity, but you’re not finding out at the end when there’s nothing left to change.
By the time the accounts are signed off and the CT600 goes in, the number shouldn’t come as a surprise. You’ve already seen it build and you know why it’s landed where it has.
Understanding Corporation Tax
Most of the confusion with Corporation Tax isn’t the rules, it’s knowing where you actually stand.
The CT600 is just the return that pulls everything together. It shows HMRC how your profit has been worked out and what that turns into from a tax point of view. The issue is usually the numbers going into it, not the form itself.
Deadlines are where people tend to get caught out. The tax is due nine months and one day after your year-end, which sounds like plenty of time until you don’t have a clear figure to work from. Without that, you’re guessing what to set aside.
Penalties normally come from things drifting rather than anything deliberate. A return gets left, something isn’t quite right, and it ends up costing more than it should. HMRC sets out how those build here if you want to see it clearly: Corporation Tax penalties guidance.
Expenses and reliefs are usually where the difference is made. Most people know they can claim things, but it’s not always obvious what actually qualifies or how it should be handled. That’s what feeds through into the final number.
Why Work With Archimedia For Your Corporation Tax
Most companies don’t switch accountants because something’s gone badly wrong. It’s usually because the tax number never quite feels explained.
They’ve got accounts, the return gets filed, but when the bill lands, there isn’t much clarity around why it’s that figure or whether anything could have been handled differently during the year.
That’s the gap we tend to step into.
We don’t just take the final numbers and turn them into a return. We stay close to it as the year goes on, so when profit moves or decisions are made, you’ve got a clear view of what that means from a tax point of view.
You’ll know where you stand before anything is filed. What the likely liability looks like, what’s driven it, and whether anything needs to be looked at before the year closes.
It’s a simple way of working, but it means you’re not left trying to make sense of it all after the fact.