Connect Xero. File your CT600.
Import your trial balance in one click. No CSV exports, no manual data entry.
Connect to XeroHow it works
Connect
Sign in to your Xero account and authorise read-only access.
Import
We fetch your trial balance and map each account to the correct CT600 box automatically.
File
Review the pre-populated form, generate your accounts, and submit to HMRC and Companies House.
Why Xero users choose TinyTax
Xero Tax is for accountants only
Xero Tax (CT600) is locked to Xero Partners. If you do your own bookkeeping, you can't file your corporation tax return through Xero alone.
File CT600 and accounts directly
TinyTax lets you file your CT600 to HMRC and your accounts to Companies House — no accountant needed.
Auto-import your trial balance
Connect your Xero account and your trial balance is imported automatically — no CSV exports, no manual data entry.
Free for dormant companies
Filing dormant accounts and a nil CT600 is completely free. Trading companies start from just a few pounds.
What gets imported from Xero
- Current year trial balance with automatic CT600 box mapping
- Prior year comparatives for Companies House accounts
- Profit & loss and balance sheet data
- Works with any Xero organisation
Frequently asked questions
- Can I file CT600 through Xero?
- No. Xero Tax is only available to Xero Partners (accountants). Business owners who use Xero for bookkeeping need separate CT600 software like TinyTax to file their corporation tax return.
- How do I file CT600 without an accountant?
- Use CT600 software like TinyTax that connects to your accounting software. Connect your Xero account, review the pre-populated form, and submit directly to HMRC.
- What data does TinyTax import from Xero?
- TinyTax imports your trial balance — both current and prior year — and maps each account to the correct CT600 box automatically. This covers your profit & loss and balance sheet.
- Is TinyTax an alternative to Xero Tax?
- Yes, for business owners who do their own bookkeeping in Xero. TinyTax connects directly to your Xero account and handles CT600 filing and Companies House accounts submission.
- Do I need to export a CSV from Xero?
- No. TinyTax connects directly via Xero's API. Click connect, authorise read-only access, and your trial balance is imported in one click.