Invoice calculator with VAT and withholding
Calculate the amount receivable from a net base, or the base needed for a chosen payment. VAT and withholding use the same base.
Your details
Calculation breakdown
Amount to collect
€1,060.00
- Taxable base
- €1,000.00
- VAT amount
- €210.00
- Total with VAT, before withholding
- €1,210.00
- Withholding deducted from payment
- -€150.00
- Amount to collect
- €1,060.00
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Keep in mind
Change the rate if your transaction uses 10%, 4% or is exempt.
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The calculation is base + VAT − withholding = amount receivable. Both tax amounts use the base in this case; withholding is not calculated on the VAT-inclusive total. Working backwards, the unrounded formula is payment / (1 + VAT/100 − withholding/100). We then check the result using amounts rounded to cents.
Each tax amount calculated from a base is rounded to the nearest cent; half a cent rounds away from zero. The calculator accepts negative amounts to reflect corrective-invoice arithmetic, but does not determine when a correction is appropriate.
Fictional example: a resident professional charges €1,000 for services subject to 21% VAT, with a payer required to withhold 15%. VAT is €210, withholding €150, and the amount receivable €1,060. Before withholding, the total is €1,210. Withholding is an advance payment of the professional's income tax, not a commercial discount or a final tax saving.
This tool checks arithmetic for one common base. The initial 21% VAT and 15% withholding rates are examples; selecting 0% does not establish that a transaction is exempt or carries no withholding. It does not determine exemptions, reverse charges, IGIC, IPSI, special schemes or the competent tax authority. It neither issues an invoice nor calculates payroll or determines your obligations. If your transaction combines different bases or treatments, check the required breakdown first.
The general professional withholding rate is 15%, but special cases exist. The 7% starting rate requires conditions and notification to the payer: it is not automatic for every new freelancer and does not mean 36 months. The payer and income determine whether withholding is required. Enter an already verified rate here.
When starting from a VAT-inclusive total with no withholding, the base is rounded to cents and VAT is obtained by difference, so the breakdown adds up exactly to the entered total. When starting from an amount receivable with withholding, rounding VAT and withholding separately can make an exact match impossible; the tool then shows the difference.
Sources checked on 26 September 2026. The rounding described is the method used by this calculator.