VAT calculator (El Salvador)
Add the 13% VAT to a price without tax or extract the VAT included in a final price, with the exact tax breakdown.
Calculation assumptions
- The general VAT rate in force in El Salvador is applied (art. 54 of the VAT law). The rate used is shown in the calculation breakdown.
- VAT is rounded to 2 decimal places (half up); when extracting, net + VAT always add up to the exact total.
What this calculator does
This calculator works with El Salvador’s VAT (IVA), whose standard rate is 13% under article 54 of the Ley de Impuesto a la Transferencia de Bienes Muebles y a la Prestación de Servicios. It solves the two everyday operations: adding VAT to a price without tax and extracting the VAT already included in a final price.
In both cases it shows all three figures — price without VAT, VAT, and price with VAT — so you can use them directly in invoices, quotes, or expense tracking.
Who it is for
- Merchants and professionals who issue invoices and need to calculate VAT on their prices.
- Taxpayers reviewing purchase invoices who want to verify the tax charged.
- Consumers who want to know how much tax they pay within a final price.
- Accountants and students who need the inverse operation: pulling the VAT out of a total.
What information you need
- To add VAT: the price without tax (net).
- To extract VAT: the final price with tax included (gross).
- The 13% rate is already configured per current law; you do not need to enter it.
How it is calculated
To add VAT, the net price is multiplied by 0.13. The result is rounded to 2 decimal places (half up) and added to the net to get the final price.
To extract VAT, the final price is divided by 1.13, which returns the net price. The VAT is the exact difference between the final price and the net, so net + VAT always reproduces the total to the cent.
Dividing by 1.13 (instead of multiplying by 0.13) is the key to extraction: the 13% applies to the price before tax, not to the total.
Formula
- Add VAT to a net price
VAT = net × 0.13 · total = net + VAT- Extract VAT from a final price
net = total ÷ 1.13 · VAT = total − net
Worked example
You invoice a $100 service plus VAT and, separately, you want to know how much VAT a $250 tax-included purchase carries.
- Add: VAT = $100 × 0.13 = $13.00; total = $100 + $13.00 = $113.00.
- Extract: net = $250 ÷ 1.13 = $221.24 (rounded to the cent).
- Extracted VAT: $250 − $221.24 = $28.76.
The service is invoiced at $113.00 ($13.00 of VAT). The $250 purchase includes $28.76 of VAT on a net of $221.24.
How to interpret the result
VAT is a consumption tax: the final consumer pays it and the seller only collects and reports it. The net is what actually stays in your business.
When extracting VAT from a total, the tax is 13% of the net, which equals 11.5044% of the final price. That is why $28.76 is not 13% of $250.
Per-line rounding can differ by one cent from invoices that round on totals; both practices are normal.
Common mistakes
- Extracting VAT by multiplying the total by 0.13: that overestimates the tax. The correct way is dividing the total by 1.13.
- Applying 13% to exempt or non-taxed goods or services: the law includes exceptions; check whether your transaction is taxed.
- Forgetting that some prices already include VAT: adding 13% to a price that already carries it inflates the final price.
- Confusing VAT with income tax withholding or other withholdings that may appear on the same invoice.
Frequently asked questions
What is the VAT rate in El Salvador?
The standard rate is 13%, set by article 54 of the Ley de Impuesto a la Transferencia de Bienes Muebles y a la Prestación de Servicios (Legislative Decree No. 296). Exports are taxed at a 0% rate and some transactions are exempt.
How do I get the VAT out of a price that already includes it?
Divide the final price by 1.13 to get the price without tax, then subtract: the difference is the VAT. For example, $113 ÷ 1.13 = $100 net and $13 of VAT.
Why divide by 1.13 instead of subtracting 13%?
Because the 13% is calculated on the price before tax. A final price is 113% of the net: subtracting 13% of the total would remove too much. Taking 13% off $113 would give $98.31, not the correct $100.
Do all products pay VAT?
No. The law sets exemptions (for example, certain health and education services) and exports are taxed at 0%. This calculator applies the standard 13% rate for taxed transactions; consult an accountant if you are unsure about your case.
Can I use the result for my VAT return?
It works as an arithmetic check for individual invoices. The monthly return is filed on the totals of your purchase and sales books, under the Tax Code rules; rely on an accountant for the formal filing.
Sources
- Ley de Impuesto a la Transferencia de Bienes Muebles y a la Prestación de Servicios (Decreto Legislativo N.º 296), art. 54 — Ministerio de Hacienda de El Salvador (texto consolidado) (Art. 54: "La tasa del impuesto es el trece por ciento, aplicable sobre la base imponible" (see docs/research/sv-labor-rules.md, section 10))
- Sala de lo Contencioso Administrativo, sentencia citando el art. 54 de la Ley de IVA (tasa del 13%) — Corte Suprema de Justicia de El Salvador (Confirms the 13% standard rate: "el artículo 54 de la referida ley prescribe que la tasa del Impuesto es del trece por ciento (13%)")
- Last reviewed:
- July 20, 2026
- Calculation version:
- 1.0.0
Important notice
The results of these calculators are informative estimates and may differ from official calculations. They do not constitute legal, tax, or financial advice. Always verify with the competent institutions or a professional.