File your company accounts and corporation tax for £10

One price, both filings. Sync directly from Xero or QuickBooks, auto-tag iXBRL, and submit straight to Companies House and HMRC. No subscription. No annual licence.

Supports FRS 105 (micro-entities) and FRS 102 Section 1A (small companies).

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No card required. Only pay £10 when you submit.

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Tax Optimiser accounts production screen showing Xero trial balance sync

✅ Companies House recognised software

✅ HMRC recognised software for CT600

🇬🇧 UK-built and supported

💷 No subscription — pay per submission

Built for directors and accountants alike

Whether you're filing for your own company or for clients, Tax Optimiser works the way you do.

🧑‍💼 Company directors

File your own statutory accounts and corporation tax without needing an accountant. Our guided workflow handles the standards, the tagging, and the submission. £10 covers both filings for the year. If you're not confident, you can still have an accountant review before you submit.

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📊 Accountants and bookkeepers

Buy credits in bulk and bring per-filing cost down to £3. File for as many clients as you like, sync directly from each client's Xero or QuickBooks, and submit to Companies House and HMRC from one place.

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From trial balance to filed accounts in three steps

1
Connecting Xero or QuickBooks to Tax Optimiser via OAuth

Connect Xero or QuickBooks

Link your accounting software in under two minutes using OAuth. We pull the trial balance and chart of accounts automatically — no CSVs, no manual entry.

2
Reviewing and mapping the trial balance to FRS 105 or FRS 102 1A categories

Review and adjust

Map accounts to FRS 105 or FRS 102 1A categories with our guided workflow. Post adjustment journals that sync back to your accounting system. Built-in validation flags missing disclosures before you submit.

3
Submission confirmation with Companies House and HMRC receipts

Submit to Companies House and HMRC

We generate iXBRL-tagged accounts to the current Companies House taxonomy and submit them directly from the app. Corporation tax submissions to HMRC work the same way. You get confirmation receipts in minutes.

Why accountants and directors choose us

💷 £10 covers both filings

One price for your statutory accounts and your corporation tax return. No add-ons, no per-module fees, no surprises at renewal time — because there's no renewal.

🔁 True two-way Xero & QuickBooks sync

Most tools only read from your books. We push adjustment journals back, so what you file and what's in your accounting system always match.

🏛 Direct to Companies House and HMRC

No iXBRL exports, no third-party portals, no separate filing tools. Submit accounts to Companies House and corporation tax to HMRC straight from the app.

📦 Credit packs for accountants

File 25, 100, 500 or more submissions on a single account. Prices drop to as low as £3 per filing. No per-seat fees, no annual licence.

Simple, honest pricing

One filing or a thousand — the more you buy, the less you pay.

Pay-as-you-go

£ 10 +VAT per company, per year — covers both your statutory accounts and corporation tax submission

✅ FRS 105 or FRS 102 1A accounts

✅ Corporation tax (CT600) return

✅ Direct Xero & QuickBooks sync

✅ Automatic iXBRL tagging

✅ Direct submission to Companies House and HMRC

✅ Email support

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For accountants and bookkeepers

One credit = one company, one year, both filings.

Pack Credits Price £ per credit
Pay-as-you-go1£10£10
Starter25£200£8
Practice100£600£6
Growth250£1,250£5
Scale500£2,000£4
Enterprise1,000£3,000£3

All prices exclude VAT. Credits do not expire.

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Frequently asked questions

One company's statutory accounts (filed to Companies House) and corporation tax return (filed to HMRC) for one financial year. Both filings, one fee.

FRS 105 is for micro-entities (turnover under £632k, balance sheet under £316k, fewer than 10 employees). FRS 102 Section 1A is for small companies above the micro threshold but below the medium threshold. Tax Optimiser supports both — we'll guide you to the right standard during setup.

No. Many of our customers are company directors filing for their own businesses. Our guided workflow and built-in validation are designed to be usable without accounting qualifications. If your accounts are complex, we'd always recommend professional review before submission.

Yes. Dormant company accounts are fully supported and filed under the same £10 fee.

Yes. You can prepare and submit amended accounts to Companies House from the app at no extra charge.

Yes, fully automatic. We tag your accounts to the current Companies House taxonomy without you needing to do anything. You don't need to know what iXBRL is to use Tax Optimiser.

No. Credits are perpetual and never expire.

There's no time-limited trial, but signup is free with no card required. You can use the app, sync your trial balance, review your accounts, and only pay £10 when you're ready to submit.

We're ICO-registered (ZA473706), and your data is encrypted in transit and at rest. We never sell or share your data. Read our Privacy Policy for full details.

File for £10. No subscription. No surprises.

Sign up free. Connect your accounting software. Only pay when you submit.

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