The Impuesto General a las Ventas or Calculadora IGV is Peru’s version of what many countries call a value-added tax (VAT). This tax affects almost everything you buy in Peru. When people talk about a calculadora IGV, they mean a tool that helps calculate this tax.
In Peru, the IGV rate is currently 18%. This means 18% of the price goes to the government as tax when you buy something. Understanding how to use an IGV calculator can help both shoppers and business owners know the real cost of items.
Calculadora IGV
IGV: S/. 0.00
Total: S/. 0.00
Why You Need a Calculadora IGV
Using a tax calculator for IGV saves time and prevents mistakes. Whether you run a small business or just want to check your receipts, a calculadora IGV makes tax math simple.
Here are some key reasons to use an IGV calculator:
- It quickly shows both the tax amount and total price
- It helps businesses set the right prices
- It makes sure tax payments to the government are correct
- It helps shoppers understand what they’re paying for
How a Calculadora IGV Works
A tax calculator for IGV works in two main ways. It can add the tax to a price (calculate forward) or remove the tax from a total (calculate backward). Both methods are useful in different situations.
Adding the IGV to a Price
When you know the price before tax (the base price), the calculadora adds 18% to find the total. The math looks like this:
Total Price = Base Price + (Base Price × 18%)
Or more simply:
Total Price = Base Price × 1.18
Removing the IGV from a Total
Sometimes you know the total price and need to find out how much is tax. The calculator uses this math:
Base Price = Total Price ÷ 1.18
Tax Amount = Total Price – Base Price

Types of IGV Calculators
There are many ways to calculate the IGV tax. Each type of calculator has good and bad points.
Online IGV Calculators
Many websites offer free tax calculators. These work on computers and phones and give quick answers. Most online calculadoras IGV are simple to use – just type in one number and get the results right away.
The best online calculators let you choose whether to add tax to a price or find the tax within a total price. Some even let you change the tax rate for special cases.
Mobile Apps for IGV Calculation
Tax calculator apps offer more features than websites. Many Peruvian business apps include IGV calculators along with other helpful tools like invoice makers or expense trackers.
Apps work without internet once downloaded, making them reliable for business owners who work in areas with poor connections.
Spreadsheet Calculators
For businesses that handle many items, spreadsheet calculators work best. Programs like Excel or Google Sheets can be set up with formulas that automatically calculate the IGV for multiple products at once.
A basic spreadsheet calculator might have columns for:
- Item name
- Base price
- IGV amount (calculated automatically)
- Total price with IGV (calculated automatically)
Step-by-Step Guide to Using an Online Calculadora IGV
Most online IGV calculators follow a similar pattern. Here’s how to use one:
- Open the calculator website
- Choose whether you’re adding tax to a price or finding tax within a total
- Enter the amount you know (either the base price or total price)
- Click “Calculate” or a similar button
- Read the results, which should show:
- The base price (before tax)
- The IGV amount (18%)
- The total price (with tax included)
Some calculators might ask for more information, like the exact tax rate or whether to round the results to a certain number of decimal places.
Common IGV Calculator Mistakes to Avoid
Even with a calculadora IGV, mistakes happen. Here are common errors to watch out for:
Using the Wrong Tax Rate
While Peru’s standard IGV rate is 18%, some items have different rates or are exempt. Make sure your calculator uses the right rate for what you’re buying or selling.
Confusion Between Including and Excluding Tax
Always check whether your calculadora is adding tax to a price or finding the tax within a total. Using the wrong calculation can cause significant errors, especially with large amounts.
Forgetting to Update Calculations
Tax rates can change. If the government changes the IGV percentage, make sure your calculator is updated with the new rate.
IGV Calculators for Business Owners
For business owners in Peru, a good calculadora IGV is essential. It affects pricing, profits, and tax payments.
Setting Prices with IGV
When setting prices, businesses must decide whether to show prices with or without tax. Most retail stores show prices with IGV included, while businesses that sell to other businesses often show prices without tax.
A tax calculator helps business owners work backward from their desired profit margin to set the right base price before adding the IGV.
IGV and Invoicing
Peruvian law requires businesses to clearly show the IGV amount on invoices. A good calculadora can help create proper invoices that separate the base price from the tax amount.
The invoice must show:
- The base amount
- The IGV amount (18% of the base)
- The total including IGV
Tax Reporting with IGV Calculators
Businesses must report and pay IGV regularly. A calculator helps track how much tax was collected and needs to be paid to the government. Many accounting programs include built-in IGV calculators that make monthly reporting easier.
Advanced Features in Modern IGV Calculators
Today’s calculadoras IGV offer more than basic tax math. Look for these helpful features:
Multiple Tax Rates
Some calculators allow different rates for different items. While most goods and services in Peru have the standard 18% IGV rate, some have reduced rates or exemptions.
Bulk Calculations
Advanced tax calculators let you enter multiple items at once. This is perfect for businesses pricing many products or for shoppers comparing different purchase options.
Receipt Creation
Some IGV calculator apps can create simple receipts or price quotes. After calculating the tax, you can save or share the results as a professional-looking document.
History Tracking
The best calculadoras save your previous calculations. This history feature helps track spending patterns or keep records for tax purposes.
IGV Exemptions and Special Cases
Not everything in Peru has the same tax treatment. A good calculadora IGV should handle these special cases.
IGV-Exempt Items
Some necessities and services are exempt from IGV. These include:
- Certain fresh foods
- Basic educational services
- Some financial services
- Public transportation
- Health services
When using a tax calculator, make sure to set the rate to 0% for these items.
Special Economic Zones
Some areas of Peru have special tax rules. For example, businesses in the Amazon region may have reduced IGV rates or exemptions to promote development.
A flexible calculadora should allow for changing the tax rate to match these special zones.
Calculadora IGV in the Digital Economy
The rise of online shopping and digital services has changed how IGV works. Modern tax calculators have adapted to these changes.
IGV on Digital Services
Since 2020, Peru has required foreign digital service providers (like streaming platforms and app stores) to charge IGV. A good calculadora should handle these digital purchases too.
E-commerce and IGV Calculation
Online sellers need automated tax calculators built into their websites. These systems calculate the right IGV based on what’s being sold and where the buyer is located.
Creating Your IGV Calculator
While many ready-made options exist, some people prefer to create their calculadora IGV. Here’s how:
Spreadsheet Method
To make a basic IGV calculator in Excel or Google Sheets:
- Create a cell for the base price input
- In another cell, multiply the base price by 0.18 to get the IGV amount
- Add the base price and IGV amount in a third cell to get the total
- Format the cells to show Peruvian currency (S/.)
For the reverse calculation (finding the base from the total):
- Create a cell for the total price input
- In another cell, divide the total by 1.18 to get the base price
- Subtract the base price from the total to get the IGV amount
Mobile App Development
For those with programming skills, creating a mobile IGV calculator app can be a good project. The basic functions need just a few lines of code, and you can add more features as you go.
Legal Aspects of IGV Calculation
Using the right calculadora IGV is not just convenient—it’s a legal matter for businesses.
Tax Compliance
Businesses must calculate IGV correctly or face fines. A reliable tax calculator helps ensure compliance with Peru’s tax laws.
Consumer Rights
Consumers have the right to know how much tax they’re paying. Businesses must be transparent about IGV, which is why a good calculadora that shows the breakdown is important.
The Future of IGV Calculators
Tax calculators continue to evolve with technology. Here’s what to expect:
AI-Powered Calculations
Future calculadoras IGV may use artificial intelligence to automatically recognize product types and apply the correct tax rates without human input.
Integration with Other Systems
The best calculators will work directly with accounting software, point-of-sale systems, and government tax portals for seamless reporting.
Choosing the Right Calculadora IGV for Your Needs
With so many options, finding the best IGV calculator can be confusing. Here’s how to choose:
For Personal Use
If you just want to check prices occasionally, a simple online calculadora is enough. Look for one with:
- A clean, easy-to-use interface
- Both forward and backward calculation options
- No registration required
For Small Businesses
Small business owners need more features. The best IGV calculators for them include:
- Bulk calculation for multiple items
- The ability to save or export results
- Options to create simple invoices
- History tracking
For Large Companies
Large businesses should look for enterprise-level solutions:
- Integration with existing accounting software
- Multiple user accounts
- Advanced reporting features
- API access for custom integrations

Conclusion: Making the Most of Your Calculadora IGV
A good IGV calculator makes tax math simple and accurate. Whether you’re a shopper checking prices or a business owner managing taxes, the right calculadora saves time and prevents costly mistakes.
Remember these key points about IGV calculation:
- The standard rate is 18%
- You can calculate forward (adding tax) or backward (finding tax within a total)
- Different tools work best for different situations
- Accuracy matters for both legal and financial reasons
By choosing the right calculadora IGV and using it correctly, you can handle Peru’s value-added tax with confidence.
Frequently Asked Questions About Calculadora IGV
What is the current IGV rate in Peru?
The standard IGV rate is 18%. This has been the rate since 2011.
Can I deduct IGV payments as a business expense?
Businesses don’t deduct IGV as an expense. Instead, they subtract the IGV they paid on purchases from the IGV they collected on sales, and pay the difference to the government.
Do I need an internet connection to use an IGV calculator?
It depends on the type. Online calculadoras need internet, but downloaded apps and spreadsheets work offline.
Are there official government IGV calculators?
Peru’s tax authority (SUNAT) offers some calculation tools on their website, but many people prefer third-party calculators that are easier to use.
What’s the difference between IGV and sales tax?
IGV is a value-added tax applied at each stage of production and distribution. Sales tax is only charged at the final sale. The math for calculating both is similar, but they work differently in the economy.