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Tax & Accounting Hub

Tax deadlines, elections, and payroll docs without founder panic.

A tax calendar and document hub for Atlas-style founders who need to understand entity treatment, election deadlines, contractor forms, and payroll setup before small misses become expensive.

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Relevant items28
Firm path$47,550
1Teraton path$1,942

Annual Tax Calendar

Key filing windows for C-Corp founders, shown in calendar order.

C-Corp
1
Jan 15Q4 estimated payment
2
Jan 311099-NEC to contractors
3
Mar 1DE franchise tax
4
Apr 15Corporate return / Q1 estimate
5
Jun 15Q2 estimated payment
6
Sep 15Q3 estimated payment
7
Oct 15Extended corporate return

Entity & Election

Choose and document how the IRS should treat the company.

Before first corporate return
C-Corp

C-Corp Tax Treatment Memo

Plain-English guide to corporate tax, founder payroll, retained earnings, stock grants, and double-taxation basics.

Law firm$1,200
1Teraton$79
Saved$1,121
Before books close for first tax year
C-CorpS-CorpLLC

Cash vs. Accrual Method Guide

Founder-ready worksheet for choosing an accounting method and knowing when accrual treatment may be required.

Law firm$700
1Teraton$29
Saved$671
Immediately after formation
C-CorpS-CorpLLC

EIN + IRS Account Setup Packet

Checklist for EIN records, responsible party details, IRS notices, EFTPS setup, and secure document storage.

Law firm$500
1Teraton$19
Saved$481
30 days after restricted stock grant
C-CorpS-Corp

Founder 83(b) Tax Filing Packet

IRS Form 15620 packet, 30-day deadline tracker, employer copy, spouse consent, and proof-of-mailing/e-file evidence for restricted founder stock.

Law firm$600
1Teraton$29
Saved$571
Before first financing or stock sale
C-Corp

QSBS / Section 1202 Eligibility Memo

Pre-financing review of C-Corp stock issuance, qualified business activity, gross asset limits, and investor diligence evidence.

Law firm$3,500
1Teraton$129
Saved$3,371
Before option grants
C-CorpS-Corp

409A Valuation Readiness Pack

Organize option plan, board approvals, cap table, and valuation provider handoff before issuing employee options.

Law firm$4,000
1Teraton$149
Saved$3,851
Immediately after formation
C-CorpLLC

Foreign Founder U.S. Tax Setup

ITIN/SSN, W-8BEN/W-9 routing, 83(b) notes, treaty prompts, entity classification, and founder compensation checklist.

Law firm$3,500
1Teraton$129
Saved$3,371

Annual Tax Calendar

Deadline-driven filings founders cannot afford to miss.

Jan 31
C-CorpS-CorpLLC

1099-NEC Contractor Filing

Prepare recipient list, TIN validation, nonemployee compensation totals, and filing instructions.

Law firm$1,200
1Teraton$49
Saved$1,151
Apr 15, or Oct 15 extended
C-Corp

Corporate Tax Return Readiness

Organize revenue, expenses, payroll, equity events, deductions, and extension needs for Form 1120.

Law firm$2,200
1Teraton$99
Saved$2,101
Varies by state; DE C-Corps Mar 1
C-CorpS-CorpLLC

State Franchise Tax Planner

Track state franchise tax, annual report, registered agent, and foreign qualification obligations.

Law firm$900
1Teraton$59
Saved$841
Mar 1 for Delaware corporations
C-Corp

Delaware Franchise Tax Optimizer

Compare authorized shares vs. assumed par value method, annual report evidence, and March 1 Delaware deadline readiness.

Law firm$1,500
1Teraton$59
Saved$1,441
Before hiring, office lease, or sustained sales in a state
C-CorpS-CorpLLC

State Foreign Qualification Review

Check whether a Delaware company operating in CA, NY, TX, or another state must register, appoint an agent, or pay state fees.

Law firm$2,500
1Teraton$89
Saved$2,411
Apr 15 / Jun 15 / Sep 15 / Jan 15
C-CorpS-CorpLLC

Estimated Quarterly Payment Calendar

Founder checklist for federal and state estimated payments, safe harbors, and reminder dates.

Law firm$650
1Teraton$29
Saved$621
Before crossing state revenue or transaction thresholds
C-CorpS-CorpLLC

Sales Tax Nexus Check

State-by-state SaaS and ecommerce exposure screen for economic nexus thresholds, registration timing, and marketplace rules.

Law firm$3,000
1Teraton$99
Saved$2,901
Before filing first return with R&D activity
C-CorpS-CorpLLC

R&D Tax Credit Prep Pack

Qualified research activity memo, payroll offset checklist, engineering documentation tracker, and CPA handoff packet.

Law firm$4,000
1Teraton$149
Saved$3,851
Before reimbursing founder expenses
C-CorpS-CorpLLC

Founder Reimbursement / Accountable Plan

Policy and approval packet for reimbursing pre-incorporation expenses, home office, travel, software, and equipment.

Law firm$2,200
1Teraton$79
Saved$2,121
Before investor diligence
C-CorpS-CorpLLC

Investor Diligence Tax Folder

Assemble tax returns, extensions, franchise tax proof, 83(b), payroll, 1099s, equity docs, and Delaware good-standing evidence.

Law firm$3,500
1Teraton$119
Saved$3,381
After formation or foreign registration changes
C-CorpS-CorpLLC

Conditional BOI / CTA Check

Screens domestic-company exemption status and flags foreign reporting company BOI deadlines under current FinCEN rules.

Law firm$1,200
1Teraton$39
Saved$1,161
Original return due date
C-CorpS-CorpLLC

Tax Extension Decision Memo

Decide whether to extend, what still must be paid, and what documents the CPA needs next.

Law firm$700
1Teraton$29
Saved$671
After IRS penalty notice; request promptly
C-CorpS-CorpLLC

IRS First-Time Penalty Abatement Waiver

Administrative waiver request packet for founders with a clean three-year compliance history seeking relief from failure-to-file, failure-to-pay, or failure-to-deposit penalties.

Law firm$1,100
1Teraton$49
Saved$1,051
Dec 31
C-CorpS-CorpLLC

Year-End Books Close Checklist

Close revenue, expenses, bank reconciliations, equity activity, and tax document requests before year end.

Law firm$1,000
1Teraton$49
Saved$951

Contractor & Payroll Docs

Templates and checklists for hiring without surprise penalties.

Before first contractor payment
C-CorpS-CorpLLC

W-9 Collection Template

Email template and tracker for collecting W-9s before paying contractors or vendors.

Law firm$400
1Teraton$29
Saved$371
Start in December; file Jan 31
C-CorpS-CorpLLC

1099-NEC Preparation Checklist

Map payments, thresholds, contractor addresses, TINs, filing method, and delivery workflow.

Law firm$900
1Teraton$49
Saved$851
Before offer signature
C-CorpS-CorpLLC

Offer-of-Employment Tax Disclosures

Explain withholding, equity tax treatment, relocation tax notes, and payroll setup to new hires.

Law firm$800
1Teraton$39
Saved$761
Before first payroll
C-CorpS-CorpLLC

Payroll Setup Guide

Guide to withholding accounts, payroll provider setup, founder salary, benefits, and state registrations.

Law firm$1,300
1Teraton$69
Saved$1,231
Before classifying any worker
C-CorpS-CorpLLC

Contractor vs. Employee Review

Risk checklist for control, equipment, exclusivity, pay structure, and state worker-classification rules.

Law firm$1,500
1Teraton$79
Saved$1,421
Jan 31
C-CorpS-CorpLLC

Contractor 1099 Compliance Workflow

End-to-end W-9, payment threshold, TIN, 1099-NEC filing, recipient furnishing, and Jan 31 deadline workflow.

Law firm$1,200
1Teraton$49
Saved$1,151
Before first payroll; then monthly or semiweekly
C-CorpS-CorpLLC

Payroll Tax Deposit Calendar

EFTPS setup, federal and state withholding schedule, monthly/semiweekly deposit prompts, and first payroll readiness.

Law firm$1,800
1Teraton$69
Saved$1,731