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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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Advisory Monks Portal
Dashboard
Good morning, Sarah · Monday, 2 March 2026
Upload Message your accountant
Cash Position
$142,350
↑ $8,200 vs last week
Next Deadline
Apr 15
Federal Q1 estimated tax
Reports Ready
3
February pack + 2 others
Open Items
2
Documents requested
Weekly Cash Report
● Live · March 2, 2026
Cash Balance
$142,350
↑ $8,200 since last Monday
Projected EOW
$138,100
After payroll & vendor pmts
THIS WEEK · MOVEMENTS
↑ Client payment — Apex Design +$22,000
↓ Bi-weekly payroll run -$11,400
↓ AWS + SaaS subscriptions -$2,400
8-WEEK CASH TREND ($K)
J3
J4
F1
F2
F3
F4
M1
M2
Prepared by Akash Ukil · Advisory Monks Consulting · Every Monday 9am ET
Recent Reports
View all →
February 2026 Financial Pack
P&L · Balance Sheet · Cash Flow · Owner Dashboard
New ⬇
Q4 2025 Board Pack
CFO Narrative · KPI Summary · 13-Week Forecast
Ready ⬇
January 2026 Financial Pack
Delivered Feb 10, 2026
Ready ⬇
Payroll Summary — Q4 2025
W-2 & 941 reconciliation
Action ⬇
Upcoming Deadlines
All →
Mar
15
Form 941 — Q4 2025
Federal payroll tax deposit
13 days
Apr
15
Q1 Estimated Tax
Federal + CA state payments
44 days
Apr
15
1120S / 1065 Filing
Corporate income tax return
On track
Jun
15
Q2 Estimated Tax
Federal payment
On track
Messages
All →
SC
Akash Ukil
Your February pack is ready! Revenue up 14% — full commentary inside...
9:02am
RK
Rajan Kumar
I need your Q4 bank statement for the final account (Chase ×8821). Can you upload by Thursday?
Yesterday
NV
Neha Verma
Your 941 is filed and confirmed. IRS acknowledgment attached.
Feb 28
Recent Activity
February Financial Pack uploaded & ready to view
Today 9:05am
Document requested — Chase Q4 statement needed
Yesterday
Invoice #AM-2026-0054 generated — $5,000
Mar 1
Form 941 filed and IRS acknowledgment received
Feb 28
January books reconciled and locked
Feb 5
All Reports & Financial Packs
2026
February 2026 Financial Pack
Delivered March 2, 2026 · P&L · Balance Sheet · Cash Flow · Dashboard
New⬇
Q4 2025 Board & Investor Pack
Delivered January 5, 2026 · CFO Narrative · KPIs · 13-Week Forecast
Ready⬇
January 2026 Financial Pack
Delivered February 10, 2026
Ready⬇
2025
December 2025 Financial Pack
Delivered January 10, 2026
Ready⬇
November 2025 Financial Pack
Delivered December 10, 2025
Ready⬇
Q3 2025 Board & Investor Pack
Delivered October 5, 2025
Ready⬇
Invoices
All payments current ✓
Year to Date
$10,000
Monthly Rate
$5,000
Balance Due
$0.00
InvoiceDateAmountStatus
#AM-2026-0054
Mar 1, 2026
$5,000
Due Apr 1
#AM-2026-0041
Feb 1, 2026
$5,000
#AM-2026-0028
Jan 1, 2026
$5,000
#AM-2025-0112
Dec 1, 2025
$5,000
#AM-2025-0099
Nov 1, 2025
$5,000
Upload Document
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PDF, Excel, CSV, images up to 50MB · Encrypted

All Documents
14 files
TAX DOCUMENTS
2024 Form 1120S — Federal Return
Filed April 15, 2025 · PDF · 24 pages
⬇
2024 CA Form 100S — State Return
Filed April 15, 2025 · PDF · 18 pages
⬇
2024 W-2 Pack — All Employees
Issued January 31, 2025
⬇
COMPANY DOCUMENTS
Advisory Monks Consulting SOW 2025
Signed October 15, 2024 · DocuSign
⬇
Certificate of Formation — Meridian Tech LLC
Delaware · March 2022
⬇
Full Compliance Calendar — 2026
MARCH 2026
Mar
15
Form 941 — Q4 2025
Federal payroll tax return · IRS
13 days
Mar
25
Payroll Data Due to AMC
Please upload February payroll by this date
Action
APRIL 2026
Apr
5
Bank Statements Due
March statements — all accounts
Client Action
Apr
15
Q1 Estimated Tax Payment
Federal Form 1040-ES + CA 540-ES
On track
Apr
15
1120S / Corporate Return
Federal income tax return · IRS
In progress
JUNE 2026
Jun
15
Q2 Estimated Tax Payment
Federal + CA payments
On track
SEPTEMBER 2026
Sep
15
Q3 Estimated Tax Payment
Federal + CA payments
On track
Conversations
SC
Akash Ukil · Co-founder
Your February pack is ready! Revenue up 14%...
Today 9:02am
RK
Rajan Kumar · Senior accountant
I need your Q4 Chase bank statement...
Yesterday 3:15pm
NV
Neha Verma · Payroll
941 filed and confirmed. Ack attached.
Feb 28
SC
Akash Ukil
● Online · Your dedicated accountant
SC
Hi Sarah — your February financial pack is ready! Revenue came in at $186,400, up 14% vs January. Gross margin held at 58%. I've left some commentary in the Owner Dashboard section that I think you'll find useful before your board meeting. Let me know if you'd like to walk through it.
Today · 9:02am
SC
Thanks Akash! That's great news. Yes, let's do a quick walkthrough — I'll send a calendar invite for Thursday morning if that works.
Today · 9:18am
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