Revenue Records for Lump-Sum Tax 2026 - How to Keep Them

On lump-sum tax you don't settle expenses the way you would with a revenue and expense ledger, but that doesn't mean you can keep records haphazardly. Good revenue records are the foundation for correct tax advance payments, smooth month-end closing, and a trouble-free annual settlement.

What good records should provide

Well-maintained records should answer three questions:

1. How much revenue did I generate this month? -- the basis for your tax advance payment
2. What revenue bracket am I in? -- determines your health insurance contribution
3. Is everything consistent with my invoices? -- for potential tax office verification

What to record

For each invoice or revenue item:

• Date of revenue
• Invoice number
• Revenue amount
• Lump-sum tax rate (12% for IT services)

Month-end closing checklist

1. Verify all invoices are recorded
2. Calculate cumulative annual revenue (for health insurance bracket)
3. Calculate tax advance payment
4. Reconcile with bank statements

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