Tax Calculators
Free tax estimation tools for individuals, freelancers, and businesses in the USA, UK, Canada, Australia, UAE, and other markets. Estimate salary after tax, VAT on sales, self-employment tax, import duties, and more — so you can plan your cash flow before the bill arrives.
UK Salary Calculator
Estimate UK take-home pay using simplified tax and national insurance assumptions.
taxUSA Salary Calculator
Estimate US take-home salary using simplified federal, state, and payroll tax assumptions.
taxVAT Calculator
Add or remove VAT from a price and calculate VAT amount.
taxSales Tax Calculator
Calculate sales tax, before-tax price, and final total.
taxFreelancer Tax Estimate Calculator
Estimate freelancer tax reserve based on revenue, expenses, and tax rate.
taxPayPal Fee Calculator
Estimate PayPal fees, net received, and gross-up amount.
taxStripe Fee Calculator
Estimate Stripe fees, net payout, and gross-up amount.
taxImport Duty Calculator
Estimate landed cost using item value, shipping, duty rate, and tax rate.
taxProfit After Tax Calculator
Calculate profit after estimated tax from revenue and costs.
taxInvoice Tax Calculator
Calculate invoice subtotal, tax amount, and final invoice total.
Common use cases
Freelancer quarterly tax planning
Estimate self-employment tax and income tax owed each quarter so you can set aside the right amount from every payment.
Salary comparison after tax
Compare two job offers or salary negotiations by calculating take-home pay after income tax and National Insurance contributions.
VAT on sales pricing
Calculate the VAT-inclusive price to charge customers, or the VAT amount to remit on a given revenue figure.
E-commerce sales tax
Estimate sales tax liability on US orders across different states to plan for quarterly sales tax filings.
Import duty planning
Estimate import duties and customs fees before ordering goods from overseas to avoid unexpected landed costs.
Business fee estimation
Calculate platform fees, processing charges, and commissions to understand the true net revenue from a sale.
How to choose the right tax calculators
Start with the decision you need to make, not the calculator name. If you are comparing options, choose a tool that shows both the headline number and the total cost or long-term effect. If you are checking performance, choose a tool that explains the formula and lets you test conservative, expected, and optimistic scenarios. The best calculator for a real decision is the one that makes the trade-off visible: monthly cost versus total cost, revenue versus profit, growth versus churn, or speed versus risk.
Every CalcBix category page groups related calculators so you can move from a first estimate to a more complete review. A single tool can answer the first question, but related tools often reveal the second-order effect. For example, a marketing result should usually be checked against margin or CAC. A loan payment should be checked against total interest and cash flow. A SaaS revenue result should be checked against churn, runway, and acquisition cost.
Calculator comparison guide
| Calculator | Best for | Use it when |
|---|---|---|
| UK Salary Calculator | Estimate UK take-home pay using simplified tax and national insurance assumptions. | Use this when estimating take-home pay, planning quarterly tax payments, or checking how deductions affect your bill. |
| USA Salary Calculator | Estimate US take-home salary using simplified federal, state, and payroll tax assumptions. | Use this when estimating take-home pay, planning quarterly tax payments, or checking how deductions affect your bill. |
| VAT Calculator | Add or remove VAT from a price and calculate VAT amount. | Use this when estimating take-home pay, planning quarterly tax payments, or checking how deductions affect your bill. |
| Sales Tax Calculator | Calculate sales tax, before-tax price, and final total. | Use this when estimating take-home pay, planning quarterly tax payments, or checking how deductions affect your bill. |
| Freelancer Tax Estimate Calculator | Estimate freelancer tax reserve based on revenue, expenses, and tax rate. | Use this when estimating take-home pay, planning quarterly tax payments, or checking how deductions affect your bill. |
| PayPal Fee Calculator | Estimate PayPal fees, net received, and gross-up amount. | Use this when estimating take-home pay, planning quarterly tax payments, or checking how deductions affect your bill. |
| Stripe Fee Calculator | Estimate Stripe fees, net payout, and gross-up amount. | Use this when estimating take-home pay, planning quarterly tax payments, or checking how deductions affect your bill. |
| Import Duty Calculator | Estimate landed cost using item value, shipping, duty rate, and tax rate. | Use this when estimating take-home pay, planning quarterly tax payments, or checking how deductions affect your bill. |
This category includes 10 tools. Use the full grid above to open calculators not shown in the comparison table.
How to get better results from these calculators
- Use recent actual numbers when you have them. Current statements, invoices, analytics reports, and account dashboards are better than memory.
- Keep time periods consistent. Do not compare a monthly cost with an annual revenue figure unless you convert one of them first.
- Run at least three scenarios. A conservative case shows downside risk, a baseline case shows the expected result, and an optimistic case shows upside.
- Check related calculators before making the final decision. One metric rarely captures cash flow, risk, timing, and total cost together.
- Use results as planning estimates. For tax, lending, investment, legal, or major business decisions, verify final numbers with a qualified professional.
Related categories
Frequently asked questions
Are these tax calculators accurate for my country?
The tools use general formulas and indicative rates. Tax rates, brackets, and rules change regularly and vary by jurisdiction. Always verify with official government sources or a qualified tax professional before filing.
Do CalcBix tax tools replace professional tax advice?
No. These are planning tools to help you estimate tax liability. For actual tax filing, VAT returns, or business tax compliance, consult a qualified accountant or tax advisor.
Can I use these tools for multiple countries?
Most tools let you select currency and some have country-specific options. However, local rules, exemptions, and thresholds vary. Treat results as general estimates.
What is the difference between gross and net salary?
Gross salary is your pay before any deductions. Net salary (take-home pay) is what remains after income tax, social security contributions, and any other statutory deductions are removed.