OneB Invoice

Sign contracts, send professional invoices, attach work completion certificates — manage all your document flow in OneB Invoice

7 days without limitations, after that — according to the tariff plan.

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Download in PDF format
Send the electronic version to the client
Print as a professional document

Why is the work completion certificate mandatory?

The work completion certificate is an official document that confirms the completion of services or works according to the contract.

Formalizes the relationship between the customer and the contractor

Ensures transparency of financial transactions in accordance with the law

Confirms the provision of services or works

An invoice cannot replace a work completion certificate

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Who needs a work completion certificate?

🦺

Construction and repair

Used to confirm the completion of construction or repair works between the contractor and the customer.

👨🏻‍💻

Information technology and programming

Used to confirm the services provided for software development, IT system setup, server maintenance, web development, etc.

🎯

Marketing and advertising

Used to confirm the execution of advertising campaigns, marketing research, design development, preparation of marketing materials, and other services.

📗

Education and consulting

Used to confirm the provision of educational services, training, consulting services on various issues.

🚗

Logistics and transportation

Used to document the execution of transport services, cargo transportation, delivery of goods and materials.

🧹

Cleaning service

The work completion certificate confirms the provision of cleaning services, maintenance of utility systems, landscaping, etc.

💊

Medical services

Can be used to confirm the provision of medical services, such as consultations, treatment, rehabilitation services, and more.

📷

Creative industry

Used to document the completion of works in the field of photography, videography, copywriting, graphic design, etc.

💵

Audit and accounting services

The certificate confirms the execution of audit checks, preparation of financial statements, tax consulting, and other accounting services.

Didn't find yourself?

We invite you to a free consultation

Full document workflow cycle in OneB Invoice

1
estimatedDocument

Cost and work estimation through estimates

Convenient and fast, as all services/products are stored, and the estimate creation process takes just a few minutes

2
signingContract

Contract creation and signing

Create your own contract based on the approved estimate. Sign it manually or through Diia.Signature

3
payInvoiceDocument

Invoice payments in a convenient way

Online payment via Mono Pay, IBAN with fast payment by QR code, or manually enter the details

4
confirmationWorks

Confirmation with a work completion certificate

The final stage, summarize and provide the client with a certificate of the provided services. Congratulations, it was a perfect deal!

Create documents directly in OneB Invoice

Choose a pricing plan

A thirty-day trial period without limitations, then according to the tariff plan.

*The Pricing Plan Applies to One Workspace

** Pricing Policy in Effect During War to Support Ukrainian Business. Together to Victory!

***One Month - 30 Days, One Year - 365 Days.

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Your data is securely protected on the Google Cloud cloud platform, and all information is stored in accordance with international information protection standards such as ISO 27001 and ISO 27701.

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