ICMS Management for E-Commerce with Interstate Operations
Guides proper ICMS calculation, DIFAL, and tax substitution for e-commerce businesses selling across Brazil.
Ensure fiscal compliance for interstate ICMS, correctly calculate DIFAL, identify products subject to substitution taxation, and avoid penalties in e-commerce operations.
At a glance
Access
Free prompt
Open to copy — no account or payment needed.
Prompt objective
Ensure fiscal compliance for interstate ICMS, correctly calculate DIFAL, identify products subject to substitution taxation, and avoid penalties in e-commerce operations.
Real use case
TechStore, an electronics e-commerce business based in São Paulo (SP) selling to all states, is receiving DIFAL notices from Minas Gerais and Bahia because they were not collecting the rate differential for final consumers who are non-taxpayers.
Customize these fields first
Replace the placeholders with your own context before you run the prompt. That usually improves the first output more than adding more instructions later.
Prompt
Develop an operational ICMS guide for [COMPANY NAME] e-commerce, based in [ORIGIN STATE], selling [PRODUCT TYPE] to final consumers nationwide. **Operational Data:** - Origin state: [STATE CODE] - Tax regime: [SIMPLES/PRESUMED/ACTUAL] - Monthly revenue: R$ [AMOUNT] - % of interstate sales: [PERCENTAGE]% - NCM of main products: [LIST] - Uses marketplace (Mercado Livre, Amazon, Shopee)? [YES/NO] **Required Topics:** 1) **Own ICMS (Internal Operations):** - Internal rate of origin state - Tax base (with/without IPI) - Available ICMS credits 2) **DIFAL (EC 87/2015 + LC 190/2022):** - Differential rate calculation - Split: 100% to destination state - GNRE: how to generate and pay by state - Payment deadline by state - Simples Nacional companies: DIFAL obligation? 3) **Substitution Taxation (ICMS-ST):** - Check if products [NCM] are subject to ST in destination states - MVA (Marginal Value Added) by state - ICMS-ST calculation - Current ICMS protocols and agreements 4) **Accessory Obligations:** - SPED Fiscal (EFD ICMS/IPI) - DeSTDA (for Simples Nacional) - State registration as substitute in other states (when required) - GIA-ST 5) **Practical Table by State:** | Destination State | Internal Rate | Interstate Rate | DIFAL | ST? | GNRE? | 6) **Recommended Automation:** - Automatic calculation systems (TaxGroup, Avalara, TaxOne) - ERP/e-commerce platform integration - Automatic GNRE generation Update with current rates for [YEAR].
Open directly in an AI — the text is pre-filled:
How to use this prompt
- 1Replace the key placeholders first: COMPANY NAME, ORIGIN STATE, PRODUCT TYPE, STATE CODE.
- 2Replace any bracketed placeholders like [this] with your own context.
- 3Add extra background information when you want more tailored results.
- 4Combine multiple prompts in one conversation when you need a richer output.
- 5Save your best-performing prompts so they are easy to reuse later.
Next best step
Open the guide first, then branch only if you still need more.
A guide for choosing prompts, tools, courses, and workflows without creating expensive tool sprawl.
If this prompt is close but not quite right, generate variants next. If the job is recurring, move into the course library after the guide.
Related prompts
View allTax Regime Comparison: Simples Nacional vs. Presumed Profit vs. Actual Profit
Simulates the tax burden across three Brazilian tax regimes to determine the most advantageous classification.
Best for
Calculate the total tax burden for each regime, considering revenue, payroll, activity type, and specific benefits, to support the tax regime decision for the upcoming calendar year.
Personal Income Tax Optimization for Freelancers and Business Owners
Legal strategies to reduce the personal income tax (IRPF) burden by leveraging deductions, retirement planning, and strategic financial planning.
Best for
Maximize legal deductions, choose the best filing method, and plan the distribution of income between personal and corporate entities to optimize annual IRPF.
Tax Calendar and Compliance for Small-Medium Businesses
Build a complete annual calendar of tax obligations with deadlines, responsible parties, and late payment penalties.
Best for
Create a control system that ensures timely compliance with all tax obligations, avoiding fines, interest, and issues with Federal, State, and Municipal tax authorities.
Advanced Tax Planning with Legal Tax Reduction for Regular Profit Regime
Identify legal tax savings opportunities for companies on Regular Profit (Lucro Real) using incentives, credits, and restructuring strategies.
Best for
Map all permitted tax reduction opportunities under Brazilian law, calculate potential savings, and create an implementation plan without audit risk.
Explore other prompt categories
Move sideways into adjacent libraries when the current category is not the full answer.
Every prompt here is free. The course teaches the thinking behind them.
Copy as many prompts as you like. When you want to move from single prompts to a repeatable AI workflow, Learn AI in 30 Days walks through it, one day at a time.
Buy the course once ($15/$20 by length), or go all-access for $10/mo with a verifiable certificate.