TinyTax vs 123 Filings: Free CT600 Software Compared

Both TinyTax and 123 Filings offer CT600 filing services for UK companies. This comparison helps you decide which is right for your business.

Quick Comparison

FeatureTinyTax123 Filings
Free CT600Yes (micro-entities)Free tier available
iXBRL accountsIncluded freeAdditional cost
Companies HouseIncludedAdditional cost
InterfaceModern web appForm-based
SupportChat and emailEmail
Best forSelf-filing directorsSimple returns

Pricing Comparison

TinyTax Pricing

PlanPriceIncludes
Free£0CT600 + accounts + CH filing
StandardFrom £49Additional features
No per-return charges for micro-entities.

123 Filings Pricing

ServicePrice (approx)
CT600 onlyFrom £25
AccountsAdditional
Companies HouseAdditional
Combined£60+
Prices may vary—check their website for current rates.

5-Year Cost Comparison

For annual filing (micro-entity):

OptionYear 1Year 2Year 3Year 4Year 5Total
TinyTax Free£0£0£0£0£0£0
123 Filings~£60~£60~£60~£60~£60~£300

What's Included Free

TinyTax Free Tier

  • CT600 preparation and calculation
  • Direct HMRC submission
  • iXBRL micro-entity accounts
  • Companies House filing
  • Tax calculation with marginal relief
  • Unlimited companies
  • Prior year data fetch

123 Filings Free/Low-Cost

  • Basic CT600 form
  • HMRC submission
  • Limited validation
Check current offerings as free features may change.

Feature Comparison

CT600 Filing

FeatureTinyTax123 Filings
Basic CT600✓✓
All CT600 boxes✓✓
Tax calculationAutoAuto
Marginal reliefAutoAuto
HMRC submission✓✓
Confirmation✓✓
Verdict: Both handle CT600 filing effectively.

Accounts Generation

FeatureTinyTax123 Filings
Micro-entity accounts✓ (free)Extra cost
iXBRL format✓✓
Balance sheet✓✓
Notes to accounts✓✓
Verdict: TinyTax includes accounts free; 123 Filings charges extra.

Companies House Filing

FeatureTinyTax123 Filings
CH submission✓ (free)Extra cost
Same-day filing✓✓
Confirmation✓✓
Verdict: TinyTax includes CH filing free.

User Experience

AspectTinyTax123 Filings
InterfaceModern, guidedTraditional
Mobile-friendlyYesLimited
Learning curveLowMedium
Help textIn-appKnowledge base
Verdict: TinyTax is easier for beginners.

Who Should Choose TinyTax

Choose TinyTax if you:

  • Want completely free CT600 + accounts + CH filing
  • Are a micro-entity company
  • Prefer modern, guided software
  • Want everything in one place
  • Value chat support

Who Should Choose 123 Filings

Choose 123 Filings if you:

  • Only need CT600 without accounts
  • Prefer à la carte pricing
  • Are comfortable with form-based interfaces
  • Already use their other services

Company Type Comparison

For Micro-Entities

NeedTinyTax123 Filings
CT600FreeLow cost
AccountsFreeExtra
TotalFreePaid
Winner: TinyTax

For First-Time Filers

NeedTinyTax123 Filings
GuidanceHighMedium
Setup timeQuickModerate
SupportChatEmail
Winner: TinyTax

For Dormant Companies

NeedTinyTax123 Filings
Dormant CT600FreeLow cost
Dormant accountsFreeExtra
SimplicityHighMedium
Winner: TinyTax

Switching From 123 Filings to TinyTax

If you currently use 123 Filings:

  1. Create a free TinyTax account
  2. Add your company (automatic data fetch)
  3. TinyTax retrieves prior year data from HMRC
  4. File your next return with TinyTax
No data export needed—TinyTax pulls what it needs.

What Users Say

About TinyTax

> "Couldn't believe it's actually free. Filed my CT600 and accounts without paying anything."

> "Much easier than the form-based tools I've tried before."

About 123 Filings

> "Gets the job done but had to pay extra for accounts."

> "Been using it for years, does what it needs to."

Frequently Asked Questions

Is TinyTax really free?

Yes. For micro-entities, CT600, accounts, and Companies House filing are all free. No hidden fees.

Which is more established?

123 Filings has been around longer. TinyTax is newer but purpose-built for modern filing needs.

Can I use both?

Technically yes, but there's no need. Each can handle your complete filing independently.

What if I outgrow micro-entity status?

TinyTax offers paid tiers for larger companies. 123 Filings offers various service levels too.

Which has better support?

TinyTax offers live chat support. 123 Filings relies on email and knowledge base.

Summary

FactorWinner
Price (micro-entity)TinyTax (free)
Included featuresTinyTax
Ease of useTinyTax
SupportTinyTax
Track record123 Filings
OverallTinyTax
For most micro-entity companies, TinyTax offers better value with its free tier that includes everything you need. 123 Filings may suit those who prefer paying per service or already use their platform.

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