Definition
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An invoice for a partial service or delivery already provided, which is created during the course of the project.
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An advance payment before the start of or during a project to secure future services or deliveries.
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An invoice for a self-contained partial service or delivery within an overall project.
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Time of payment
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During the course of the project, after the provision of a partial service or delivery.
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Before the start or in the early phases of a project, before the service or delivery is provided.
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After completion of a defined partial phase or partial performance of the overall project.
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Intended use
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Financing ongoing work and ensuring the progress of the project.
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Ensuring the seriousness of the client and covering initial costs.
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Settlement of completed sections of a project or delivery.
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Legal basis
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Based on the contractually agreed payment method and verifiable partial services.
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Based on contractual agreement, often as security for the contractor.
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Based on contractually defined milestones or sections of the project.
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Invoice content
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Breakdown of the partial services or deliveries provided and their costs.
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Breakdown of the total service or delivery and the advance payment made.
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Breakdown of the completed partial service or delivery and its costs.
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Amount of payment
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Variable, depending on the partial services or deliveries provided.
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Fixed amount, often a percentage of the total cost.
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Corresponds to the costs of the completed partial service or delivery.
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Example
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Construction: Invoice after completion of the foundation.
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Car purchase: down payment before ordering the vehicle.
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IT project: invoice after completion of the first development phase.
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Risks for the contractor
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Possible non-payment if the client is unable to pay.
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Risk of the order being canceled without the contractor being able to keep the down payment.
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Delays or disputes about the scope of the partial service provided.
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Advantages for the contractor
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Ensuring continuous payments and liquidity during the project.
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Financial security and commitment from the client to complete the contract.
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Clear invoicing and remuneration for completed project phases.
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