Backed by 
Combinator
CombinatorFinance and accounting partner to AI startups
Afternoon provides finance, accounting and tax support to startups with complex AI native revenue and cost structures.
Trusted by 80+ AI startups
AI enabled data extraction
Vercel For GPUs
Find your perfect leads with one prompt
Agent simulation and RL for researchers
All-in-one AI creative platform
continual-improvement layer for AI
AI Coding Assistant for Your Terminal
AI realtime voice companion for language learning
IDE that lets you orchestrate AI coding agents.
AI Compliance Analysts for Banks & Fintechs
About Afternoon
AI startups require bespoke finance support.
Complex revenue structures involving credit grants, cost plus pricing and cost attribution across inference providers make it difficult for traditional accounting firms to provide a financial reporting useful for founders.
We seamlessly blend technology and human CPA expertise to create a finance foundation for founders to grow confidently.
Don't waste your time explaining tokens to your accountant.
Afternoon seamlessly connects to your billing systems and inference providers to provide you with a complete financial picture.
85%
time saved on tax prep
20hrs
saved every month
10min
to get started
Our products
Seamlessly integrated financial stack, that handles your bookkeeping, taxes, and compliance.
Effortless sales tax compliance
Afternoon makes it easy to monitor exposure, register, and file sales tax in all US states.
Monitor exposure
Connect your billing and HR system to monitor your exposure in real-time.
Nexus study
Our tax experts will determine which states you have a tax obligation in, and which states you need to register in.
Register
Register in any US state with a single click. Afternoon will register you in all states where you have a tax obligation.
File and remit sales tax automatically
We will file and remit sales taxes in all states automatically on your behalf.
