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

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

Short answer: It depends on which Sage product you use. Sage 50 Accounts (desktop) has some CT600 functionality, but Sage Accounting (cloud) does not. Neither product handles the full CT600 filing process that most small companies need.

Sage Products and CT600 Support

Sage ProductCT600 FilingPrice
Sage Accounting (cloud)❌ NoFrom £14/month
Sage 50 Accounts (desktop)⚠️ Partial (via add-on)From £299/year
Sage Business Cloud❌ NoFrom £12/month

Sage Accounting (Cloud)

The cloud version of Sage — popular with small businesses — does not file CT600 returns. It handles bookkeeping, invoicing, and MTD for VAT, but not corporation tax filing.

Sage 50 Accounts (Desktop)

Sage 50 has a "Year End" module that can produce some CT600 data, but:

  • It requires the Professional or Plus tier (£420+/year)
  • The CT600 features are basic — no guided wizard
  • iXBRL generation requires additional configuration
  • Many users still find they need an accountant to review the output

The Gap

For the majority of Sage users (especially those on the cloud product), there's no built-in way to file CT600 returns. You need a separate solution.

What Sage Does Well

Sage is excellent accounting software for day-to-day operations:

  • Bookkeeping — double-entry accounting
  • Invoicing — create and send professional invoices
  • Bank feeds — automatic transaction imports
  • VAT returns — MTD-compliant filing to HMRC
  • Financial reports — P&L, balance sheet, trial balance
  • Payroll — available as an add-on

What Sage Doesn't Do (for CT600)

  • Guided CT600 wizard — no step-by-step filing process
  • Marginal relief calculation — the complex calculation for profits £50K-£250K
  • CT600 supplementary pages — CT600A, CT600B, CT600C, etc.
  • HMRC electronic submission — no direct CT600 filing (cloud version)
  • Auto-generated iXBRL accounts — not available on the cloud product

How to File CT600 If You Use Sage

The Simple Option: Sage + Taxpipe

  1. Use Sage for your accounting — track income, expenses, and bank transactions throughout the year
  2. At year-end, run your reports — P&L and balance sheet from Sage
  3. Enter the figures into Taxpipe — the guided wizard tells you exactly which numbers go where
  4. Taxpipe calculates your tax — including marginal relief, financial year splits, and associated companies
  5. Submit to HMRC — Taxpipe files your CT600 with iXBRL accounts

Total cost: Sage Accounting (£14/month) + Taxpipe (£59/filing) = £227/year

Compare that to Sage 50 Professional (£420/year) + accountant review (£200+) = £620+/year

Key Sage Reports for CT600

When transferring data from Sage to Taxpipe, you'll need:

Sage ReportCT600 Use
Profit & LossTrading profit (Box 155), turnover (Box 145)
Balance SheetFor micro-entity accounts
Nominal ActivityTo verify specific income/expense categories
Bank InterestNon-trading income (Box 160)

Sage vs Taxpipe: Different Tools for Different Jobs

FeatureSage AccountingTaxpipe
PurposeDay-to-day accountingAnnual CT600 filing
Bookkeeping✅ Full
Bank feeds
Invoicing
VAT returns
CT600 filing
iXBRL accounts
Tax computation
HMRC submission❌ (CT600)
Starting price£14/month£59/filing

They complement each other perfectly — Sage for the 364 days of accounting, Taxpipe for the 1 day of tax filing.

Frequently Asked Questions

I use Sage 50 — should I still use Taxpipe?

If you have Sage 50 Professional with the year-end module and you're comfortable using it, you may not need Taxpipe. But many Sage 50 users find Taxpipe's guided wizard easier and more reliable for CT600 filing specifically.

Can I import Sage data into Taxpipe?

Not automatically yet — you'll enter the key figures manually from your Sage reports. This typically takes 15-20 minutes.

Is Sage better than Taxpipe for corporation tax?

They do different things. Sage is better for accounting (tracking transactions, reconciling, reporting). Taxpipe is better for CT600 filing (generating the return, calculating tax, submitting to HMRC). Use both.

What about Sage Final Accounts?

Sage Final Accounts is a separate product aimed at accountants. It can produce CT600 returns but costs significantly more and is designed for professional use, not DIY filing.


Using Sage? File your CT600 with Taxpipe for £59 — just enter your Sage figures and we handle the CT600, iXBRL, and HMRC submission.

Related Reading

Ready to file your CT600?

Taxpipe walks you through every step — no accountant needed.

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