TinyTax vs 123 Filings: Affordable 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

Feature	TinyTax	123 Filings
CT600 Filing	£40/year (Solo)	Per-return pricing
iXBRL accounts	Included	Additional cost
Companies House	Included	Additional cost
Interface	Modern web app	Form-based
Support	Chat and email	Email
Best for	Self-filing directors	Simple returns

Pricing Comparison

TinyTax Pricing

Plan	Price	Includes
Solo	£40/year	CT600 + accounts + CH filing (1 company)
Portfolio	See pricing	Unlimited companies

No per-return charges — unlimited filings included.

123 Filings Pricing

Service	Price (approx)
CT600 only	From £25
Accounts	Additional
Companies House	Additional
Combined	£60+

Prices may vary—check their website for current rates.

5-Year Cost Comparison

For annual filing (micro-entity):

Option	Year 1	Year 2	Year 3	Year 4	Year 5	Total
TinyTax Solo	£40	£40	£40	£40	£40	£200
123 Filings	~£60	~£60	~£60	~£60	~£60	~£300

What's Included

TinyTax Solo (£40/year)

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

123 Filings

• Basic CT600 form
• HMRC submission
• Per-return pricing

Check their website for current rates.

Feature Comparison

CT600 Filing

Feature	TinyTax	123 Filings
Basic CT600	✓	✓
All CT600 boxes	✓	✓
Tax calculation	Auto	Auto
Marginal relief	Auto	Auto
HMRC submission	✓	✓
Confirmation	✓	✓

Verdict: Both handle CT600 filing effectively.

Accounts Generation

Feature	TinyTax	123 Filings
Micro-entity accounts	✓ (included)	Extra cost
iXBRL format	✓	✓
Balance sheet	✓	✓
Notes to accounts	✓	✓

Verdict: TinyTax includes accounts; 123 Filings charges extra per return.

Companies House Filing

Feature	TinyTax	123 Filings
CH submission	✓ (included)	Extra cost
Same-day filing	✓	✓
Confirmation	✓	✓

Verdict: TinyTax includes CH filing; 123 Filings charges extra.

User Experience

Aspect	TinyTax	123 Filings
Interface	Modern, guided	Traditional
Mobile-friendly	Yes	Limited
Learning curve	Low	Medium
Help text	In-app	Knowledge base

Verdict: TinyTax is easier for beginners.

Who Should Choose TinyTax

Choose TinyTax if you:

• Want affordable CT600 + accounts + CH filing (£40/year)
• 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

Need	TinyTax	123 Filings
CT600	Included	Low cost
Accounts	Included	Extra
Total	£40/year	Per-filing

Winner: TinyTax (everything included in one price)

For First-Time Filers

Need	TinyTax	123 Filings
Guidance	High	Medium
Setup time	Quick	Moderate
Support	Chat	Email

Winner: TinyTax

For Dormant Companies

Need	TinyTax	123 Filings
Dormant CT600	Included	Low cost
Dormant accounts	Included	Extra
Total	£20/year	Per-filing

Winner: TinyTax (affordable flat rate)

Switching From 123 Filings to TinyTax

If you currently use 123 Filings:

1. Create a 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

> "So much easier than paying per filing. One annual fee covers everything."

> "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

How much does TinyTax cost?

TinyTax Solo costs £40/year for one company, which includes CT600, accounts, and Companies House filing. Dormant companies pay just £20/year. No hidden fees or per-filing charges.

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

Factor	Winner
Price (micro-entity)	TinyTax (£40/year)
Included features	TinyTax
Ease of use	TinyTax
Support	TinyTax
Track record	123 Filings
Overall	TinyTax

For most micro-entity companies, TinyTax offers better value with everything included from £40/year. 123 Filings may suit those who prefer paying per service or already use their platform.

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Related guides:

• Free CT600 Options 2026
• TinyTax vs TaxFiler