Xero CT600 Filing: Can You File Corporation Tax Through Xero?

It's one of the most common questions we hear from UK company directors: "Can I file my CT600 through Xero?"

The short answer is no — Xero doesn't file your corporation tax return (CT600) to HMRC. But that doesn't mean you need to abandon Xero. It just means you need a companion tool for the final step.

This guide explains exactly what Xero does and doesn't do for corporation tax, and how to fill the gap without overpaying or overcomplicating things.

What Xero Actually Does for Your Company

Let's be clear: Xero is excellent accounting software. Millions of UK businesses use it, and for good reason:

Bookkeeping and bank reconciliation — connects to your bank and matches transactions automatically
Invoicing — create and send professional invoices, track who's paid
Expense tracking — categorise and record business expenses
VAT returns — Xero is Making Tax Digital (MTD) compatible and can submit VAT returns to HMRC
Financial reports — profit and loss, balance sheet, trial balance, and more
Payroll — run payroll for employees (including director's salary)
Receipt capture — snap photos of receipts and attach them to transactions

If you're running a UK limited company, Xero handles your day-to-day accounting beautifully. It keeps your books organised, your VAT compliant, and your financial reports up to date.

But it stops short of one critical task: filing your CT600.

What Xero Doesn't Do: CT600 Filing

Here's what Xero cannot do:

❌ Prepare a CT600 corporation tax return
❌ Calculate your corporation tax liability (including marginal relief)
❌ Generate iXBRL-tagged accounts required by HMRC
❌ Submit your CT600 to HMRC via their API
❌ Produce a formal corporation tax computation

This isn't a bug or an oversight. Xero is a bookkeeping and accounting platform. The CT600 is a tax return, and preparing and filing tax returns is a different discipline that requires:

Mapping accounting data to HMRC's specific CT600 boxes
Applying tax rules (allowable vs disallowable expenses, capital allowances, reliefs)
Generating iXBRL-tagged accounts in the format HMRC requires
Filing the complete package through HMRC's Corporation Tax API

Xero does step zero — keeping your books in order — but you need something else for steps 1 through 4.

The Traditional Solution: An Accountant

Historically, most Xero users solved this by hiring an accountant. The workflow looks like this:

You keep your books in Xero throughout the year
Your accountant logs into your Xero, reviews the figures
Your accountant prepares the CT600, generates iXBRL accounts, and files to HMRC
Your accountant invoices you £500–£2,000+ for the privilege

For complex companies, this makes sense. An accountant adds value by spotting tax planning opportunities, handling R&D claims, and managing complicated structures.

But for a micro-entity limited company with straightforward income and expenses? You're paying hundreds of pounds for someone to do something that takes 20 minutes — if you have the right tool.

Wondering if you really need an accountant? Read our honest guide: Do I Need an Accountant to File My CT600?

The Modern Solution: Xero + Taxpipe

This is where Taxpipe comes in. It's designed specifically to be the missing piece between Xero and HMRC.

Here's how it works:

Step 1: Keep Your Books in Xero (You're Already Doing This)

Continue using Xero exactly as you do now. Reconcile your bank transactions, categorise expenses, send invoices, run payroll. Nothing changes.

Step 2: Get Your Year-End Figures From Xero

At the end of your accounting period, pull your key numbers from Xero:

Total turnover/revenue — from your Profit & Loss report
Total expenses by category — from your Profit & Loss report
Assets and liabilities — from your Balance Sheet
Any capital allowance purchases — from your fixed assets register

Xero makes this easy. Run a Profit & Loss report for your accounting period, and you have everything you need.

Step 3: Enter Your Figures Into Taxpipe

What was your turnover?
What were your expenses? (With helpful categories that match common Xero categories)
Did you buy any business equipment?
Any other income?

You're essentially transferring the summary from Xero into Taxpipe. It takes about 10–15 minutes.

Step 4: Taxpipe Does the Tax Bit

Taxpipe takes your figures and:

Maps them to the correct CT600 boxes
Calculates your corporation tax (including marginal relief if applicable)
Generates iXBRL-tagged micro-entity accounts (FRS 105)
Validates everything against HMRC's rules
Flags any common mistakes

Step 5: Review and Submit

Check the summary, make sure everything looks right, and hit submit. Taxpipe files your CT600 directly to HMRC through their official API. You'll get a confirmation with your HMRC submission receipt.

Total cost: £59. No subscription, no accountant fees, no hidden extras.

Ready to complete the loop? Sign up for Taxpipe and file your CT600 in about 20 minutes.

Why Xero + Taxpipe Is the Smart Combination

You Keep the Best Bookkeeping Software

Xero is genuinely great at what it does. There's no reason to switch away from it just because it doesn't file CT600s. Keep using Xero for your daily accounting — it's the right tool for that job.

You Only Pay for What You Need

Instead of paying an accountant £500+ to translate your Xero data into a CT600, you pay Taxpipe £59 to do it yourself. That's a saving of £400+ every year.

Compare that to the alternatives:

Approach	Annual Cost
Xero + Accountant	£500–£2,000+ (accountant fees)
Xero + TaxCalc	£108/year (subscription)
Xero + Taxfiler	~£180/year (subscription)
Xero + Taxpipe	£59 (one-time per filing)

Even compared to other software, Taxpipe is the most affordable option. And unlike subscriptions, you only pay when you actually file.

No Duplicate Data Entry

Some people worry they'll have to enter everything twice — once in Xero, once in the filing software. With Taxpipe, you're entering summary figures, not individual transactions. Your Xero Profit & Loss report gives you the numbers; you type them into Taxpipe in about 10 minutes.

It's no different from what an accountant does — except you're doing it yourself and saving hundreds of pounds.

It's Designed for Non-Accountants

This is key. Taxpipe doesn't assume you're an accountant. It doesn't show you a blank CT600 form and expect you to know what goes where.

Instead, it asks plain English questions and maps your answers to the right places. If you've been managing your own Xero account, you already have the skills to use Taxpipe.

What About Xero's "Tax" Features?

You might have noticed that Xero has some tax-related features. Let's clarify what they are:

Xero Tax (For Accountants Only)

Xero offers a product called Xero Tax that does handle CT600 preparation. However, it's only available to accountancy practices — not to individual business owners. If you're a company director, you can't access Xero Tax directly.

If your accountant uses Xero Tax, great — but you're still paying your accountant to do it.

Xero's Financial Reports

Xero's Profit & Loss and Balance Sheet reports are useful inputs for your CT600, but they're not a CT600 themselves. There are tax-specific adjustments (like disallowable expenses and capital allowances) that need to be made separately.

Xero's VAT Returns

Xero handles MTD VAT returns brilliantly. But VAT and corporation tax are completely separate obligations. Filing your VAT through Xero doesn't help with your CT600 at all.

Step-by-Step: Filing Your CT600 as a Xero User

Here's the complete workflow for a Xero user who wants to file their own CT600:

Before You Start

Make sure your Xero bookkeeping is complete for the accounting period:

✅ All bank transactions reconciled
✅ All invoices issued and recorded
✅ All expenses categorised correctly
✅ Payroll entries included (if applicable)
✅ Any director's loan account transactions recorded
✅ Fixed asset purchases recorded

Get Your Numbers

Run these reports in Xero for your accounting period:

Profit & Loss (Income Statement) — this gives you your turnover and expense breakdown
Balance Sheet — this gives you your assets, liabilities, and equity
Fixed Asset Summary — if you've bought any business equipment, this shows what's eligible for capital allowances

File With Taxpipe

Go to taxpipe.co.uk/signup and create an account
Enter your company details (company number, accounting period dates)
Enter your turnover from Xero's P&L report
Enter your expenses (Taxpipe's categories align with common Xero expense types)
Enter any capital allowance claims
Review the calculated corporation tax
Submit to HMRC

After Filing

Save your HMRC submission receipt — Taxpipe provides this automatically
Pay your corporation tax by the deadline (usually 9 months and 1 day after your accounting period ends)
Record the tax liability in Xero — create a manual journal to record the corporation tax as a liability

Use our corporation tax calculator to estimate your tax bill before filing.

Common Questions Xero Users Ask

"Why doesn't Xero just add CT600 filing?"

Corporation tax filing requires specialist functionality — iXBRL generation, CT600 box mapping, HMRC API integration, and tax computation logic. It's a different product from bookkeeping software. Xero has chosen to offer this through Xero Tax for accountants rather than building it into the standard product.

"Should I switch from Xero to software that does everything?"

Probably not. All-in-one solutions tend to be either expensive or mediocre at everything. Xero is genuinely best-in-class for bookkeeping. Pair it with a focused tool like Taxpipe for CT600 filing, and you get the best of both worlds at a fraction of the cost.

"Can I connect Xero to Taxpipe automatically?"

Currently, Taxpipe doesn't have a direct Xero integration. You enter summary figures manually (total turnover, total expenses, etc.). This takes about 10–15 minutes and is actually a useful sanity check — you're reviewing your numbers before they go to HMRC.

"What if I use QuickBooks or FreeAgent instead of Xero?"

The same logic applies. Neither QuickBooks nor FreeAgent file CT600s to HMRC directly. You can use any bookkeeping software alongside Taxpipe. The workflow is the same: get your year-end figures, enter them into Taxpipe, and file.

"Is it safe to file my CT600 without my accountant checking?"

For most micro-entity companies with straightforward finances, yes. Read our complete guide on filing CT600 without an accountant for details on when it's safe and when you should get professional help.

When You Might Still Need an Accountant

Even with the Xero + Taxpipe combination, there are situations where professional help is worthwhile:

Your company doesn't qualify as a micro-entity — turnover over £632,000 or assets over £316,000
You have complex tax issues — R&D claims, transfer pricing, overseas income, group structures
You're claiming significant capital allowances and want to make sure you're optimising them
You're closing your company and need final accounts prepared
You're unsure about disallowable expenses and don't want to get it wrong
HMRC has opened an enquiry into your return

For everything else — a typical sole director with a micro-entity limited company — the Xero + Taxpipe combination handles it perfectly.

The Cost Comparison: Real Numbers

Let's put real numbers on this. Assume you're a sole director with a micro-entity limited company turning over £100,000.

Option 1: Xero + Accountant

Expense	Cost
Xero subscription	£42/month = £504/year
Accountant (CT600 + year-end)	£800/year (typical)
Total	£1,304/year

Option 2: Xero + Taxpipe

Expense	Cost
Xero subscription	£42/month = £504/year
Taxpipe CT600 filing	£59/year
Total	£563/year

Saving: £741 per year. Over three years, that's £2,223 back in your pocket.

Even if you use a cheaper accountant (say £400/year), you're still saving £341 per year with Taxpipe.

Check your potential savings with our pricing page.

Xero Users Who've Switched to DIY Filing

The profile of a Xero user who successfully files their own CT600 typically looks like this:

Sole director of a one-person limited company
Micro-entity — simple accounts, no complex structures
Tech-comfortable — if you can use Xero, you can use Taxpipe
Organised — keeps Xero up to date throughout the year (not a year-end scramble)
Straightforward income — consulting, contracting, freelancing, small e-commerce

If that sounds like you, the transition is straightforward. You already do the hard part (keeping good books in Xero). The CT600 is just the final step.

Quick Action Plan

If you're a Xero user who wants to start filing your own CT600:

Review your company type — confirm you qualify as a micro-entity (check here)
Make sure your Xero books are up to date — reconcile everything before year-end
Run your year-end reports — P&L and Balance Sheet for the accounting period
Sign up for Taxpipe when your filing is due
Enter your summary figures — about 10–15 minutes
Review and submit — Taxpipe files directly to HMRC
Pay your tax by the deadline

That's it. No accountant appointment. No waiting weeks for them to "get to your file." No surprise invoice. Just you, your Xero data, and 20 minutes with Taxpipe.

Frequently Asked Questions

Can Xero file my CT600 to HMRC?

No. Xero is bookkeeping software — it handles invoicing, bank reconciliation, expense tracking, and VAT returns, but it does not prepare or file CT600 corporation tax returns. You need separate software like Taxpipe or an accountant for that.

What's the cheapest way to file a CT600 if I use Xero?

Taxpipe at £59 per filing is the cheapest option for Xero users who want to file their own CT600. It's cheaper than other CT600 software subscriptions (TaxCalc at £108/year, Taxfiler at ~£180/year) and far cheaper than hiring an accountant. See our full cost comparison.

Does Taxpipe integrate with Xero?

Not currently via API. You enter summary figures (total turnover, total expenses, etc.) from your Xero reports into Taxpipe manually. This takes about 10–15 minutes and serves as a useful review of your numbers before filing.

Can I use Xero Tax to file my own CT600?

Xero Tax is only available to accountancy practices — it's not accessible to individual business owners. If you're a company director, you'll need an alternative like Taxpipe.

What reports do I need from Xero for my CT600?

You'll need your Profit & Loss report (for turnover and expenses) and your Balance Sheet (for assets and liabilities), both for your accounting period. If you've purchased business equipment, your Fixed Asset Summary is also helpful.

Is it complicated to go from Xero to filing a CT600?

Not with Taxpipe. You're essentially reading summary numbers from Xero reports and entering them into Taxpipe's guided form. If you can read a Profit & Loss report (which you can — you use Xero), you can file your CT600.

What if I make a mistake on my CT600?

You can amend your CT600 within 12 months of the filing deadline. Taxpipe also has built-in validation that catches common errors before you submit, reducing the risk of mistakes reaching HMRC.

Should I keep my accountant just for CT600 filing?

That's your call. Many directors keep an accountant for the first year while they get comfortable, then switch to DIY filing once they've seen how straightforward it is. If your company is a micro-entity with simple finances, there's nothing an accountant does for your CT600 that Taxpipe can't handle.

What about Companies House annual accounts?

This is separate from your CT600. You need to file annual accounts at Companies House as well as your tax return to HMRC. For micro-entities, the accounts required are very simple, and Taxpipe generates the iXBRL accounts you need as part of the CT600 filing process.

When is my CT600 deadline?

Your CT600 is due 12 months after the end of your accounting period. Your corporation tax payment is due earlier — 9 months and 1 day after the period ends. Read our deadline guide for full details.

Last updated: February 2026. If you use Xero and want to start filing your own CT600, get started with Taxpipe — it takes about 20 minutes.