Contract Penalty Calculator

Written byOleh Soloninupdated 5 October 2026

Amount owed

How the penalty is set

Daily penalty rate, %

Days overdue

First day overdue

Payment day (inclusive)

Leave empty for today.

Cap, % of the amount

0 for no cap.

Result

Penalty due30,000.00 ₽
Penalty before the cap30,000.00 ₽
CapNo cap applied
Days overdue60
Rate0.1%
Per day now500.00 ₽
Debt with penalty530,000.00 ₽

Your contract's rate, not the statutory one

Contractual penalty at a daily rate over the period of delay, with a check against any cap expressed as a percentage of the contract sum.

A contractual penalty differs from the statutory one in that the parties invent the rate themselves. A contract might set 0.1 percent of the amount per day of delay, or 0.5, or a full percent. For late work or services to a consumer, Russian law itself sets 3 percent a day (Consumer Protection Law, article 28(5)).

Always look for a cap. A clause reading "but no more than 10 percent of the contract price" rewrites the arithmetic on any long delay: without it a year runs to 36 percent, with it to exactly ten.

How to use

Enter the amount owed and choose how the penalty is set: a percentage per day from the contract, or a fraction of the key rate.
Enter the rate itself — for example 0.1 percent a day, or 1/300 of the key rate.
Set the period either by dates or as a number of days.
Read the penalty, the daily amount and whether any statutory cap applied.

Contract rate against a 1/300 penalty

A contract penalty of 0.1 percent a day sounds small and is not: it is 36.5 percent a year. On a debt of 500,000 it accrues 500 a day, so two months of delay cost 30,000. The same delay priced at 1/300 of a 14 percent key rate costs 14,000 — less than half.

Which applies depends on the contract. Where it sets a penalty, that rate governs; where it is silent, the statutory interest of article 395 fills the gap. A court may reduce a contractual penalty it considers disproportionate, which is why the calculator also shows the statutory figure for comparison.

Debt of 500,000 ₽ over 60 days of delay. Worked out with this calculator.
Basis	Daily	60 days on 500,000 ₽	Total with principal
0.1% a day from the contract	500 ₽	30,000 ₽	530,000 ₽
1/300 of a 14% key rate	233.33 ₽	14,000 ₽	514,000 ₽

What this calculator shows

The penalty by the raw formula and the amount after any cap
Whether the cap bit, and by how much it cut the claim
What a single day of delay costs — a useful number in negotiation

What to keep in mind

The base is the unperformed part of the obligation, not the whole contract price, when only part of a delivery is late.
A court may reduce a clearly disproportionate penalty, so the figure here is the upper bound of a claim.

Where the numbers come from

Checked against Articles 330, 333 and 395 of the Russian Civil Code; Article 236 of the Labour Code; key rate from cbr.ru · verified September 2026.

FAQs

How does this differ from statutory interest?

A penalty comes from the contract; statutory interest comes from the code and follows the key rate. As a general rule, where the contract sets a penalty for late payment, that is recovered and article 395 interest is not added — unless a law or the contract provides otherwise (article 395(4) of the Civil Code).

What if the contract says nothing about penalties?

Statutory interest at the key rate applies. Our statutory interest calculator handles that case.

Can a court cut the penalty?

Yes, where it is clearly disproportionate to the harm. Against a business it requires the debtor to ask; against a private individual the court may act on its own initiative.

Is a penalty received taxable?

For an individual, yes — it is taxable income and the paying company usually withholds. For companies it counts as non-operating income.

What does 0.1 percent a day come to on 500,000 over two months?

30,000 ₽, at 500 ₽ a day. Priced instead at 1/300 of a 14 percent key rate, the same delay costs 14,000 ₽.

Is a daily penalty capped?

The contract may cap it — say, at 10 percent of the amount — so check its actual wording, and a court can reduce one it finds disproportionate to the loss. The calculator shows whether a cap changed the figure.

Worked example

Two months late on payment

Input: 500,000 ₽ owed, 1 June to 30 July 2026, 0.1 percent per day, no cap

Output: Penalty 30,000 ₽, 500 ₽ a day

Note: A 5 percent cap in the contract would have limited recovery to 25,000. Look for such clauses in the liability section.

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Contract Penalty Calculator

Result

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