IRC Payments on Account Calculator 2026

IRC payments on account are advance payments of the current year tax, paid in three instalments (July, September and by 15 December). They are computed on the prior year assessment less withholding tax: 80% if turnover was up to EUR 500,000, or 95% if higher.

How they are calculated

• Base — prior year IRC assessment minus that year withholding tax.
• Rate — 80% (turnover ≤ EUR 500,000) or 95% (> EUR 500,000).
• Instalments — the total is split into three equal instalments, rounded up to euros.

Deadlines

1st instalment by 31 July, 2nd by 30 September and 3rd by 15 December (calendar-year tax periods). The 3rd instalment can be limited or suspended when the tax due for the year is expected to be equal to or lower than what was already paid — HVR reviews this case by case.

Need help with IRC and payments on account? See HVR accounting and tax.