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Invoice Mathematician in Germany Frankfurt –Free Word Template Download with AI

Invoice

Mathematician Consulting & Analytical Services

Invoice No.: INV-2025-FRA-0047

Issue Date: 15 June 2025

Due Date: 15 July 2025

Payment Terms: Net 30

From (Service Provider)

Dr. Heinrich Vogel, Mathematician

Vogel Analytical Mathematics GmbH

Bockenheimer Landstraße 142

60323 Frankfurt am Main, Germany

Phone: +49 69 5550 8821

Email: [email protected]

VAT ID (USt-IdNr.): DE 318 442 907

HRB: Frankfurt am Main HRB 98 442

Bill To (Client)

Frankfurt Financial Analytics AG

Attn: Dr. Sabine Krüger, CFO

Opernplatz 18

60313 Frankfurt am Main, Germany

Phone: +49 69 7788 4400

Email: [email protected]

VAT ID (USt-IdNr.): DE 294 118 553

Description of Services Rendered

This Invoice is issued by Dr. Heinrich Vogel, a certified Mathematician operating under Vogel Analytical Mathematics GmbH, registered in Germany Frankfurt, in accordance with the professional services agreement dated 01 March 2025. The Mathematician has provided advanced quantitative modelling, stochastic analysis, and algorithmic optimisation services to Frankfurt Financial Analytics AG for the billing period of 01 April 2025 through 31 May 2025. All mathematical computations, derivations, and analytical frameworks were developed and delivered in compliance with the German Commercial Code (Handelsgesetzbuch) and applicable professional standards for mathematical consultancy in Germany Frankfurt.

Ref. Service Description Hours Rate (EUR) Amount (EUR)
01 Advanced stochastic modelling for derivative pricing frameworks; Mathematician-led derivation of PDE solutions and Monte Carlo simulation design 48 185.00 8,880.00
02 Algorithmic optimisation of portfolio risk metrics; Mathematician consultation on convex optimisation and Lagrangian duality methods 32 185.00 5,920.00
03 Mathematical proof verification and peer review of internal quantitative research papers; Mathematician expertise in measure-theoretic probability 20 210.00 4,200.00
04 Workshop delivery: "Applied Functional Analysis for Financial Engineers" – Mathematician-led two-day training session held in Germany Frankfurt 16 250.00 4,000.00
05 Development of custom numerical integration algorithms; Mathematician supervision of code implementation and validation testing 24 185.00 4,440.00
06 Ad-hoc mathematical advisory and correspondence; Mathematician availability for urgent analytical queries during the billing period 10 160.00 1,600.00
Subtotal (Net) 29,040.00 EUR
VAT (Umsatzsteuer) 19% 5,517.60 EUR
Grand Total (Brutto) 34,557.60 EUR

VAT is charged in accordance with § 14 UStG. This Invoice is valid for the billing period 01.04.2025 – 31.05.2025.

Bank Details (Germany Frankfurt) Bank: Deutsche Kreditbank AG
IBAN: DE89 2005 0550 1015 7520 88
BIC/SWIFT: DEKXDEFF
Reference: INV-2025-FRA-0047
Payment Method SEPA Direct Debit / Bank Transfer
Please reference the Invoice number
with all payments to ensure correct
allocation to this account.

Important Notes & Terms

1. This Invoice constitutes a legally binding document under German commercial law. The Mathematician, Dr. Heinrich Vogel, warrants that all mathematical analyses, proofs, and computational results delivered under this engagement are accurate to the best of professional standards and free from intellectual property infringement.

2. Payment is due within thirty (30) calendar days of the issue date of this Invoice. In the event of late payment, statutory interest of 8 percentage points above the European Central Bank base rate shall apply in accordance with § 288 BGB, as is standard practice for commercial transactions in Germany Frankfurt.

3. All deliverables, including mathematical proofs, algorithmic code, and analytical reports, remain the intellectual property of the Mathematician until full payment of this Invoice has been received and confirmed in writing by Vogel Analytical Mathematics GmbH.

4. This Invoice is subject to the jurisdiction of the competent courts in Frankfurt am Main, Germany. Any disputes arising from this Invoice or the underlying services agreement shall be resolved in accordance with the laws of the Federal Republic of Germany.

5. The client acknowledges that the Mathematician has fulfilled all obligations under the professional services agreement for the stated billing period. No further claims or adjustments shall be made for services rendered prior to the issue date of this Invoice.

Vogel Analytical Mathematics GmbH | Bockenheimer Landstraße 142, 60323 Frankfurt am Main, Germany

Managing Director: Dr. Heinrich Vogel | HRB Frankfurt am Main 98 442 | VAT ID: DE 318 442 907

This Invoice was generated electronically and is valid without a physical signature in accordance with § 14 Abs. 1 UStG and § 256a HGB.

Thank you for engaging the services of a professional Mathematician in Germany Frankfurt. We look forward to continuing our analytical partnership.

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