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Honest side-by-side comparisons of HMRC-recognised software.

• Free UK VAT number checkers compared: HMRC, VIES and tools

  Where to check a VAT number for free: HMRC's service, the EU VIES database and API-based tools. What each returns and when to use it.

• TaxCheckIt vs Tax Optimiser: an honest comparison

  How TaxCheckIt compares with Tax Optimiser on MTD coverage, free tools, pricing, refunds and record retention — with the trade-offs stated plainly.