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Free Tools

Free Business Tools

Free online tools and calculators to help you with everyday business tasks. Quick, accurate, and no signup required.

Generators

2
Invoice Generator

Create and download professional invoices.

Quote Generator

Create and send professional quotes.

Financial calculators

Margins, loans, currencies and more.

11
VAT Calculator

Add or remove VAT from any amount.

Spain
Profit Margin Calculator

Calculate profit margin from cost and price.

Break-Even Calculator

Find how many units you need to sell.

Loan Calculator

Calculate monthly payments and total interest.

Discount Calculator

Apply discounts and see the final price.

Currency Converter

Convert between major currencies with reference exchange rates.

Rental Yield Calculator

Calculate gross and net rental yield, cash-on-cash return, and monthly cash flow.

Mortgage Calculator

Calculate monthly payments, total interest and amortization.

Stamp Duty Calculator

Calculate ITP, AJD and purchase costs by region.

Spain
Compound Interest Calculator

Calculate compound interest with periodic contributions over time.

Company Formation Cost Estimator

Estimate notary, registry, tax, and gestoría costs to form a company in Spain.

Spain

Tax & compliance

Spanish tax models, VAT and fiscal obligations.

8
IRPF Withholding Calculator

Estimate your quarterly freelancer tax.

Spain
Freelancer Quota Calculator

Calculate your Social Security contribution.

Spain
Corporate Tax Calculator

Estimate corporate tax (Impuesto de Sociedades).

Spain
EU Intra-Community VAT

Look up VAT rates across EU countries.

EU
Equivalence Surcharge

Calculate equivalence surcharge for retailers.

Spain
Late Payment Interest

Calculate legal interest on overdue invoices.

Spain
Modelo 303 Calculator

Calculate your quarterly VAT return (Modelo 303).

Spain
Self-Employed Income Simulator

Simulate net income as a Spanish autónomo.

Spain

HR & payroll

Salary, hiring costs and severance.

4
Net Salary Calculator

Convert gross salary to net take-home.

Spain
Payroll Cost Calculator

Total cost of hiring an employee.

Spain
Severance Pay Calculator

Calculate finiquito for voluntary, objective or unfair dismissal in Spain.

Spain
Holiday Entitlement Calculator

Calculate your holiday days based on employment period.

Spain

Operations & industry

Assets, shipping and industry tools.

3
Asset Depreciation

Depreciation schedules for business assets.

Shipping Cost Estimator

Estimate e-commerce shipping costs by weight, dimensions, and destination zone.

Amazon FBA Fee Calculator

Estimate Amazon referral, fulfillment, and storage fees per unit.

Compliance & Validators

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NIF/CIF/NIE Validator

Validate Spanish NIF/CIF/NIE numbers.

Spain
IBAN Validator

Validate IBAN numbers for any country.

EU
Intrastat Threshold

Check Intrastat reporting thresholds by country.

EU
EU VAT Number Validator

Check the format of any EU VAT number (VIES format validation).

EU
Tax Calendar Spain 2026

View all Spanish tax model filing deadlines for 2026.

Spain
Business Name Checker

Check if your business name meets Spanish Registro Mercantil rules.

Spain
Work Calendar Spain 2026

View working days and holidays by autonomous community.

Spain
Units Converter

Convert between units of weight, length, area, volume, and temperature.

Ready to automate your finances?

These tools are just the start. Holded automates invoicing, accounting, taxes and more, all in one platform.

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