Integrations · Accounts Production & CT600

Your Xero trial balance, straight into your accounts and CT600

Connect Xero and we pull in your trial balance, map it to your statutory accounts and corporation tax computation, and post the year-end journals back to Xero. Less retyping, so you can focus on filing.

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Free to connect. £10 + VAT when you submit your accounts and CT600.

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Xero

Trial balance in. Year-end journals back out.

No Xero add-on needed Journals posted back to Xero Accounts to Companies House, CT600 to HMRC Winner, Xero XDHAX developer challenge

From Xero to filed in three steps

1

Connect Xero

Sign in to Xero from your organisation in Tax Optimiser and choose the Xero organisation to connect.

2

Pull and map the trial balance

We pull the trial balance for the accounting period and use AI to map each account to your statutory accounts and tax computation. Check it and adjust anything you want.

3

Post journals and file

Post your year-end adjustments back to Xero as journals, then file the accounts to Companies House and the CT600 to HMRC.

Built around your Xero books

Statutory accounts

FRS 105 micro-entity and FRS 102 Section 1A accounts built from your Xero figures and tagged in iXBRL. Accounts Production

CT600 and tax computation

The same trial balance feeds your corporation tax computation, capital allowances and CT600. Corporation Tax

Ledger matches the filing

Depreciation, accruals and other year-end adjustments go back into Xero as manual journals, so next year starts from the right numbers.

Accountant using Sodium? Sync your clients in first, then connect each one to Xero.

What our customers say

5.0 out of 5 from 33 Google reviews

I recently used Tax Optimiser for the first time to submit my accounts to Companies House and HMRC, and I’m thoroughly impressed. The platform is remarkably easy to manage, walking you through the entire process without any complex jargon. On top of that, their prices are extremely competitive. It saved me a ton of time and stress—I will definitely be using them again next year.

Zulfiqar Ali Google review

I had next to no confidence that Tax Optimiser could handle accounts submission and Corporation Tax. But I gave it a whirl… Both Companies House and HMRC have initially accepted the submissions… I previously filed on professional software and I paid about £1500. This is dirt cheap.

Robert B Google review

Excellent software. Very affordable if you're doing your own small company accounts. Links with Xero… Tax Optimiser has been a complete life saver for me.

Felix Oram Google review

Frequently asked questions

No. Connecting Xero is included. You pay £10 + VAT per company when you submit your accounts and CT600, or your credit pack rate if you are an accountant.

No. Tax Optimiser prepares and files your statutory accounts to Companies House and your CT600 to HMRC itself. You only need your normal Xero subscription for your bookkeeping.

Only the year-end adjustment journals you post from Tax Optimiser, as manual journals. Your invoices, bills and bank transactions are not changed.

Xero connections can expire. Reconnect from the organisation in Tax Optimiser and nothing you have already done is lost. Our help guide shows you how.

Yes. Each client organisation connects to its own Xero organisation, so every client's trial balance and journals stay separate.

Other integrations

Sodium

For accountants

Sync your limited company clients from Sodium practice management and have each one set up with its Companies House details, directors and accounting periods.

QuickBooks

For companies and accountants

Pull the trial balance into your statutory accounts and CT600, then post the year-end journals back to QuickBooks.

See all integrations →

Xero to Companies House and HMRC. £10 + VAT.

Sign up free, connect Xero and only pay when you submit.

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