MTD for Corporation Tax — Quarterly Updates
TinyTax files your annual CT600 and Companies House accounts. This guide explains what MTD for Corporation Tax means, how it differs from your annual CT600, and what TinyTax supports.
What Is MTD for Corporation Tax?
Making Tax Digital (MTD) for Corporation Tax is HMRC's programme requiring businesses to keep digital records and submit quarterly updates to HMRC throughout the year. Under MTD for CT, companies send short updates each quarter, followed by a final declaration at the end of the year.
This is a new, separate obligation — in addition to, not instead of, your existing annual CT600 return.
Does TinyTax Support MTD for Corporation Tax Quarterly Updates?
No. TinyTax does not currently support MTD for Corporation Tax quarterly updates.
TinyTax handles your annual filings:
| Filing | Where | TinyTax? |
|---|---|---|
| Annual CT600 | HMRC | Yes |
| Annual accounts | Companies House | Yes |
| MTD CT quarterly updates | HMRC | No |
Does Anything Change for My Annual CT600?
No. Your annual CT600 continues to be filed exactly as before. MTD quarterly updates are an additional reporting obligation — they do not replace the annual return.
You can continue to use TinyTax for your annual CT600 and Companies House accounts, regardless of which software you use for quarterly MTD updates.
What Software Handles MTD for CT Quarterly Updates?
MTD for Corporation Tax quarterly updates require HMRC-recognised software. Options include full accounting platforms such as Xero, FreeAgent, QuickBooks, and Sage. Check HMRC's website for the current list of compatible software.
Common Questions
Does MTD affect my CT600 filing deadline?
No. Your annual CT600 is still due 12 months after your accounting period ends, and corporation tax is due 9 months and 1 day after the period end. MTD quarterly updates have their own submission windows and are separate from the annual return.
I just need to file my annual CT600 — do I need MTD quarterly software now?
For your annual CT600 and Companies House accounts, TinyTax handles that as normal. MTD for CT quarterly updates are a separate obligation with their own timeline and software requirements.
Does TinyTax support MTD for VAT?
TinyTax supports MTD for VAT separately. See our guide on VAT, PAYE, and CS01 for what TinyTax does and does not cover.
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