Professional Accounting
for UK Freelancers

Double-entry bookkeeping, VAT tracking, invoicing and financial reporting — everything a UK sole trader or small business needs.

Windows 10/11 · Free download · License required to activate

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Full chart of accounts, journal entries and reconciliation built for UK accounting standards.

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Track input and output VAT automatically. Generate MTD-compatible VAT reports in seconds.

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Create branded invoices, track payments and manage customer accounts with ease.

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One-time purchase, hardware-locked licence. Your key, your machine — no subscriptions.

Activating Your License

After purchasing on eBay, your license key is delivered to your eBay message inbox within minutes.

Download and install NexaBooks using the button above.

Launch NexaBooks — the activation window appears automatically on first run.

Enter your license key in the format NBKS-XXXX-XXXX-XXXX-XXXX and click Activate.

NexaBooks launches — your key is bound to this machine and cached locally for offline use.