We turned the tax questions we hear most from businesses going overseas, cross-border sellers and people with overseas status into small tools you can run yourself. Answer a few questions and get a result in 30 seconds, so you can see your tax burden, compliance risk and room to save before anything else.
Cross-Border Tax Health Check
A guided self-check across seven areas: structure, filings, export refunds, sales tax/VAT, CRS, PE and overseas status. Get an overall score, a red/amber/green rating and practical takeaways.
Start checkAsk AI a Tax Question
Ask general cross-border tax questions on Hong Kong, US companies, export VAT refunds, VAT, CRS, cross-border structures and overseas status.
Ask nowHong Kong Profits Tax Calculator
Calculate tax under the two-tiered 8.25%/16.5% rates in one click, and see whether your profits may qualify for an offshore claim to pay less or nothing at all.
Calculate →US Corporate Tax Calculator
Federal 21% plus state tax. Pick a state and your profit to estimate federal, state and combined tax, with flags on double taxation and savings.
Calculate →Export VAT Refund Calculator
Enter 4 figures to estimate your export VAT refund, and find out whether your current export route qualifies and how to recover more.
Calculate →EU/UK VAT Registration Check
For Amazon and TikTok sellers: do you need to register for VAT, in which countries, and can you use OSS/IOSS?
Check →US Sales Tax Nexus Check
Based on inventory, marketplace collection and direct-site sales, see which states you have nexus in and whether you must collect sales tax yourself.
Check →Tax Residency Checker
Mainland China, the US, Hong Kong, Canada and Singapore: use day counts and ties to see where you are tax resident and whether you are taxed on worldwide income.
Check →CRS Exchange Risk Check
If you hold overseas accounts, check whether your account data will be reported to your home jurisdiction, how exposed you are and how to stay compliant.
Check →Permanent Establishment (PE) Risk Check
Premises, staff, long-term services or projects abroad? See whether you may have a permanent establishment there and owe local corporate income tax.
Check →Cross-Border Structure Selector
VIE, ODI or an offshore structure: which one fits you? Get a suggested direction based on your business and fund flows.
Choose →Overseas Structure Compliance Check
Ten questions to score your overseas structure: ODI, VIE, economic substance, CRS, transfer pricing and PE risk, all in one check.
Check →Tools and Ecosystem Partners
An overview of all our free tax tools, plus the marketplaces we cover and our partner banks.
Browse →Cross-Border Tax Risk Assessment
A few questions to check your cross-border structure, filings and compliance risk, with a risk report generated on the spot.
Start →Every tool lets you leave your contact details. An advisor will run the numbers on your actual business and follow up with advice within 1 business day.
Learn about overseas tax status planning →