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Resources / Authors / 
Timothy Brunette

Timothy Brunette

CTO

Tim Brunette is the CTO of Summ (formerly Crypto Tax Calculator), where he leads technical operations and applies his expertise in cryptography, and machine learning to solve challenging problems in the cryptocurrency ecosystem. He previously worked at Accenture, holds a Bachelor in Space Engineering and a Masters in AI.

Security UpdateSecurity Update
Blog
21
 
Sep
 
2023
Security Update

Security update

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9/21/2023
Security AlertSecurity Alert
Blog
6
 
Sep
 
2023
Security Alert

We have become aware that cyber-criminals may be planning a sophisticated phishing scam targeting some Summ (formerly Crypto Tax Calculator) users. This requires your immediate and urgent attention.

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9/6/2023
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The Ultimate DeFi Tax GuideThe Ultimate DeFi Tax Guide
Guides
14
 
Sep
 
2025
The Ultimate DeFi Tax Guide

The DeFi space is evolving quickly and it can be hard to keep up with all the new ideas. What can be even harder is knowing what taxes you owe depending on what protocols you use. This DeFi tax guide covers all the major protocols and how they impact your tax, it also covers the general principles laid out my the tax office to guide you when a new protocol pops up.

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9/19/2023
Nederlandse cryptobelastinggids 2023 Nederlandse cryptobelastinggids 2023
Guides
14
 
Sep
 
2025
Nederlandse cryptobelastinggids 2023

Alles wat je moet weten om je cryptobelastingen in Nederland te doen. Lees nu onze handleiding.

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9/25/2023