A claimed amount is not accepted merely because it appears in a calculation. The party relying on a debt, loss, penalty or other monetary claim should be able to show the source figures, the formula, the period and the legal basis. A counter-calculation is useful only when it identifies a concrete error and supports the corrected result with documents.
Check the structure first
- the principal amount and its source document;
- payments already made and the date on which each was credited;
- the period used for interest, penalties or indexation;
- the contractual or statutory rate and formula;
- rounding, currency and tax assumptions where relevant.
Prepare a counter-calculation
Set out each disputed item in a clear table: the other party’s figure, the reason it is disputed, the supporting document and the corrected figure. A calculation without source documents rarely resolves a dispute. Bank statements, invoices, acceptance certificates, correspondence and the contract should be cross-checked against every line.
Use the right procedural route
In civil and commercial proceedings, each party generally proves the circumstances on which it relies. Evidence should be disclosed within the procedural timeframe, and the court assesses relevance, admissibility, reliability and the whole body of evidence rather than treating a calculation as conclusive.
What a correction can change
A substantiated correction may affect the amount claimed, interest, penalties, costs and the position taken in settlement discussions. It does not guarantee that the court will adopt the proposed number; the outcome depends on the applicable substantive law and evidence in the case.
Legal framework
Key procedural provisions include Articles 55, 56 and 67 of the Russian Civil Procedure Code and Articles 64 and 65 of the Arbitrazh Procedure Code. This material is general information, not a calculation for a specific dispute.