Brass calculator and abacus in gold light
Next Tax Source ✦ Instruments

The Instruments.
Which Calculation Do You Need?

A private suite across three jurisdictions — the questions every client asks, answered with numbers — plus the cross-border question every global founder asks first. Each result becomes a signed-style PDF report, yours to keep.

United States

American Calculations

Reviewed By A Licensed CPA / EA
United Kingdom

British Calculations

Reviewed By An ACCA-Qualified Accountant
United Arab Emirates

Emirati Calculations

Delivered With FTA-Registered Tax Agents
Cross-Border

The Global Founder's Question

Reviewed By Licensed Professionals In Each Country
“A calculator gives you a number.
An engagement gives you a defensible one.”
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Frequently Asked Questions

Are these tax calculators free?
Yes — every calculator is free to use, covering US, UK and UAE taxes plus a US-vs-UK-vs-UAE comparison. Results can be delivered as a branded PDF report.
How accurate are the results?
They use current published rates and thresholds, maintained against official sources, and are estimates — useful for planning, not a substitute for advice on your specific facts.
Which tax year do the calculators use?
The current tax year for each country (updated when rates change). Each calculator states its assumptions alongside the result.
What if my situation is more complicated?
That is exactly what the firm is for — book a consultation and our licensed professional will look at your actual facts.