# Resources & Tax Insights — Advisory Monks Consulting

> Free guides, tax deadline calendars, and expert articles on US tax, bookkeeping, and financial strategy for small businesses.

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RESOURCES & INSIGHTS

# Tax & accounting knowledge for US businesses
Free guides, articles, and tools from the Advisory Monks Consulting team. Written by our specialists, for business owners.
TAX PLANNING LLC vs. S-Corp: Which Structure Saves You More in 2026? The entity choice decision can save — or cost — tens of thousands in taxes annually. Here's how to decide based on your revenue and goals. Apr 2026 · 8 min read BOOKKEEPING The 7 Bookkeeping Mistakes That Get Small Businesses Audited From mixed personal/business expenses to unsupported deductions — the IRS red flags every business owner should avoid. Mar 2026 · 6 min read INTERNATIONAL TAX Indian Founders Guide to US C-Corp Taxes (2026 Edition) FBAR thresholds, Form 5472, transfer pricing, and the India-US DTAA — everything you need to know as an Indian founder operating a US entity. Feb 2026 · 12 min read DEADLINES 2026 US Business Tax Calendar: Every Deadline You Need to Know Federal and state tax deadlines for S-Corps, C-Corps, partnerships, and sole proprietors. Bookmark this. Jan 2026 · 5 min read VIRTUAL CFO How to Build a Series A Data Room: The Financial Documents Investors Expect VCs want more than a pitch deck. Here's the exact financial documentation that serious investors require before writing a check. Jan 2026 · 10 min read E-COMMERCE E-commerce Sales Tax After Wayfair: State Nexus Rules for Online Sellers If you're selling online in the US, you likely have multi-state sales tax obligations you don't know about. Here's how to find out — and fix it. Dec 2025 · 7 min read
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FREE GUIDES

## Download our free resources
New Business Startup Checklist
Everything you need to legally launch and financially set up your US business — from entity formation to first payroll.
Download Free →
S-Corp Salary Calculator Guide
Find the optimal salary-vs-distribution split to maximize your S-Corp tax savings. Includes calculator template.
Download Free →
India-US Founder Tax Guide
FBAR, FATCA, Form 5472, transfer pricing — a complete reference for Indian founders with US entities.
Download Free →

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