Do I Need an Accountant for My Startup?

The honest answer: you don't need one. You can file your own accounts with Companies House, submit your own VAT returns, and run your own payroll. HMRC doesn't require you to have an accountant.

But most founders who try this end up hiring one anyway, usually after something goes wrong.

Here's how to think about it.

What a startup accountant actually does

Not all accountants do the same thing. For a UK limited company in its first year or two, here's what a compliance accountant typically handles:

Monthly: Categorise your bank transactions. Reconcile your accounts. Keep your books clean so you know what you're spending and what's coming in.

Quarterly: Prepare and submit your VAT returns (if you're registered). Check you're claiming everything you're entitled to and not overclaiming on things you shouldn't.

Annually: Prepare your statutory accounts under FRS 102. File them with Companies House. Prepare and submit your corporation tax return (CT600) to HMRC. File your confirmation statement.

As needed: Set up and run payroll when you start hiring. Handle pension auto-enrolment. Deal with HMRC correspondence if it arrives.

That's the compliance baseline. It keeps you legal, on time, and penalty-free.

When you can probably manage without one

If all of the following are true, you might be fine on your own for a while:

• You're a sole director with no employees
• You have fewer than 20 transactions a month
• You're not VAT registered
• You're not claiming R&D tax credits or any other reliefs
• You don't have investors (and aren't planning to raise)
• You're comfortable with Xero or FreeAgent

In this scenario, the annual accounts are straightforward and the tax return is simple. You can use HMRC's own tools or basic software to file.

The risk: You don't know what you don't know. A founder who's never filed accounts before won't spot a classification error, a missed VAT registration deadline, or a disclosure that's required but not obvious. These mistakes don't hurt immediately. They hurt when HMRC asks questions, or when an investor's accountant reviews your books during due diligence.

When you definitely need one

Any of these should trigger the conversation:

You're raising investment. Investors, especially those claiming SEIS or EIS relief, need your financials to be clean and compliant. Their accountants will review your books during due diligence. If your accounts are messy, incomplete, or late, it slows the round down or kills it entirely. Investor-ready accounts aren't a nice-to-have. They're table stakes.

You're hiring employees. Payroll is not optional and it's not simple. PAYE, National Insurance, student loan deductions, pension auto-enrolment, RTI submissions to HMRC, getting any of this wrong means your employees are underpaid or overtaxed, and you're liable for penalties. Most founders outsource payroll from employee one.

You're VAT registered (or approaching the threshold). The current VAT registration threshold is £90,000 of taxable turnover. Once you cross it, you must register. Submitting VAT returns under Making Tax Digital requires compatible software and an understanding of what's reclaimable and what isn't. An incorrect VAT return means penalties.

You're spending money on development or research. If you're building software, hardware, or anything involving technical uncertainty, you may qualify for R&D tax credits. These can be worth tens of thousands of pounds. But claiming them requires specialist knowledge, this isn't something a compliance accountant handles as standard, and it's not something to attempt yourself.

Your books are already behind. If you incorporated six months ago and haven't categorised a single transaction, the cost of catching up yourself is measured in weekends. An accountant catches up in days because they've done it hundreds of times.

What it costs

For a typical early-stage UK startup (pre-revenue or early revenue, 1 to 3 people, simple structure), a specialist compliance service, covering bookkeeping, VAT, annual accounts, and Companies House filings, typically starts around £395 per month (plus VAT). Budget online-only providers advertise less, but they generally do not understand SEIS/EIS, R&D, or what investors look for in your accounts, which is the part that actually matters once you are raising.

More complex needs, payroll, monthly management accounts, multi-currency, investor reporting, push that higher, typically £600 to £900 per month.

The question isn't whether you can afford an accountant. It's whether you can afford the time and risk of not having one. A founder's time is worth more than the monthly fee, and a single missed deadline or filing error can cost more than a year of accounting fees.

What to look for

If you decide to hire one, here's what matters for startups specifically:

They understand startups. A high-street accountant who mainly handles sole traders and landlords won't know what investor-ready accounts look like, won't understand SEIS/EIS compliance requirements, and won't flag R&D credit opportunities. Ask them how many startups they work with.

They use Xero (or your preferred cloud software). If they're still asking you to post receipts, walk away. Cloud accounting with bank feeds is the baseline. You should be able to see your numbers in real time, not wait for a quarterly report.

They're proactive, not reactive. A good accountant doesn't just file your returns. They tell you when your VAT registration is approaching, when your payroll setup needs to change, when your accounts show something that needs attention. You shouldn't have to chase them.

They're transparent on pricing. Fixed monthly fees, not hourly billing with surprises. You should know exactly what you're paying and what's included before you sign up.

They're responsive. When you have a question, you should get an answer within a working day. "We'll get back to you" followed by silence is the number one complaint founders have about their accountants.

The bottom line

You can run your own accounts. Plenty of founders do, especially in the very early days. But the moment you're raising money, hiring people, or approaching any level of complexity, a good accountant pays for itself in time saved, penalties avoided, and opportunities spotted.

The best time to get your accounts in order is before you need them to be.