Does TaxCheckIt file Corporation Tax?

No. TaxCheckIt focuses on VAT under MTD. If you need CT600 filing, consider Tax Optimiser.

How long does TaxCheckIt keep my records?

TaxCheckIt keeps your records for 6 years, which aligns with HMRC's requirement to keep VAT records.

What free tools does TaxCheckIt offer?

TaxCheckIt offers free HMRC-API checkers, like a VAT number checker, plus guides on MTD for VAT.

TaxCheckIt vs Tax Optimiser: an honest comparison

Both are UK MTD filing tools for small businesses and accountants. Tax Optimiser is longer established with CT600 filing; TaxCheckIt adds a ledger, invoicing, quarterly-update workflow, free HMRC-API checkers, a 14-day refund and 6-year retention. Choose based on the features you actually file.

At a glance

TaxCheckIt and Tax Optimiser both help you file VAT under Making Tax Digital (MTD). Tax Optimiser has been around longer and has a large user base. TaxCheckIt is newer but brings a fuller set of tools: a ledger, invoicing, and a workflow built around quarterly updates.

What each files

Tax Optimiser focuses on VAT filing and also offers Corporation Tax (CT600) filing. That is a clear strength if you need CT600 in the same place. TaxCheckIt covers VAT under MTD, with a ledger and invoicing built in. It does not file CT600.

Free tools and content

TaxCheckIt gives you free HMRC-API checkers, like the VAT number checker, so you can verify supplier details before you file. You also get guides like [MTD for VAT explained]. Tax Optimiser has its own resources, but the free tools are not as extensive.

Pricing and refunds

TaxCheckIt pricing is on our pricing page. We offer a 14-day refund if you are not satisfied. Tax Optimiser pricing is on their site; we do not quote their numbers. Check their page for current rates.

Records, support and terms

TaxCheckIt keeps your records for 6 years, which matches HMRC's requirement to keep VAT records. You get support via email and an online knowledge base. Tax Optimiser's terms and support are similar, but we cannot confirm their retention period—see their site.

Who each suits

Choose Tax Optimiser if you need CT600 filing and prefer a longer track record. Choose TaxCheckIt if you want a ledger, invoicing, free checkers, and a clear refund policy. Both work without an accountant, but you can also use them with one.

FAQ

Can I switch mid-year? Yes. You can switch between MTD software at any point. Export your data from the old tool and import into the new one. Check with both providers for specific steps.

Does either need an accountant? No. Both are designed for you to file yourself. But if you have complex tax affairs, an accountant can still help you use the software effectively.