How to Calculate Split Payment in Your Cash Flow: Impact and How to Prepare
Learn how to model the impact of Split Payment on your company's cash flow, with a practical example for a mid-sized business. Step-by-step guide.
Executive Summary
Split Payment fundamentally changes how money flows into and out of a company. Taxes that used to sit in your cash account for a few days or weeks are now automatically withheld at the moment of payment — and this has a real impact on financial planning. In this guide, Vivian Sampaio shows how to model that impact on cash flow with a practical example for a mid-sized business.
Understanding the Cash Flow Impact
The Current Model (Without Split Payment)
Under the current model, when a company makes a sale:
The Split Payment Model
Practical result: Split Payment reduces the effective amount that lands in the company’s cash account. For a company with gross monthly revenue of R$ 10 million, this can mean R$ 2.65 million less in cash per month.
Practical Example: Mid-Sized Company — With and Without Split Payment
Company: Confecções Veste Bem Ltda (mid-sized company, Lucro Real (actual-profit regime)) Monthly revenue: R$ 500,000 COGS (cost of goods sold): R$ 300,000 Operating expenses: R$ 120,000
Current Scenario (Without Split Payment)
Scenario with Split Payment (2027+)
Analysis: The company faces a significant cash shock. Split Payment reduces cash inflow by R$ 132,500 per month (CBS+IBS on sales), but the company also pays less on its purchases (suppliers withhold CBS/IBS on what they sell to it).
Modeling the Impact: Step by Step
Step 1: Calculate CBS/IBS on Sales
Step 2: Calculate CBS/IBS on Purchases (which you no longer pay)
Step 3: Calculate the Net Cash Impact
Step 4: Consider the Timing
Impact on Working Capital
Split Payment primarily affects working capital because:
- Lower receipts per sale — the company needs more sales to generate the same operating cash
- Different timing — under the old model there was a “window” between receiving and paying; with Split Payment that window disappears
- Need to review credit limits — banks that assess credit limits should consider the net amount, not the gross
Example: A company with a R$ 1 million credit limit based on R$ 500,000 in monthly revenue may find that its effective limit is lower because Split Payment reduces the amount that lands in cash.
How Business Owners Should Prepare
Short Term (2026)
- Review customer contracts — many contracts contain clauses based on gross revenue that need to be adjusted
- Alert customers — if you operate B2B, your customers need to know they will apply Split Payment to their payments
- Review protection clauses — personal guarantees and sureties may need to be recalculated
- Calibrate prices — the final consumer price should reflect the CBS+IBS that will be withheld
Medium Term (2027+)
- Renegotiate credit limits — with banks and suppliers
- Adjust financial planning — cash projections based on net revenue
- Review your financing structure — if the company relied on the tax “float,” it needs an alternative source
- Invest in receivables management — collect faster to offset lower inflows
Practical Checklist
- Project cash flow with Split Payment (net revenue, not gross)
- Review contracts with customers and suppliers
- Calculate additional working capital needs
- Assess the need for a supplementary credit line
- Train your finance team for the new model
- Adjust management systems (ERP) to reflect net amounts
- Review financial KPIs (net gross margin, not gross)
Want to understand how the tax reform affects your sector? On /napratica, VMAHUB publishes practical guides for businesses. For a personalized analysis of your case, talk to our team: [email protected]
Read also:
- Split Payment: What It Is and How It Works
- Split Payment and ERP: How to Adapt Your System
- Tax Credit Under the Reform
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