The form is based on the KS-2 Act of Acceptance, which details the specific technical tasks completed.
Унифицированная форма № КС-3 - бланк и образец
You can download the blank form (in Excel, Word, or PDF formats) and find samples of how to fill it out from several reliable Russian legal/accounting resources:
Documents the total cost of construction and installation work in the reporting period for the customer.
The (Справка о стоимости выполненных работ и затрат) is a crucial, unified document used in Russian construction and repair projects to certify the cost of completed work and expenses. It is used alongside Form KS-2 (the act of acceptance) to verify that work described in the contract has been performed and to determine payments. Key Information & Features:
Includes all costs—both approved in the estimate and additional expenses (e.g., equipment depreciation, material costs).
The document includes the names of the investor, customer, and contractor, object address, contract details, reporting period, and costs.