Financial Planning Tools
Timesheets, travel mileage (€0.23/km), tax reserves, discount calculators, and asset depreciation.
Timesheet Calculator
Calculate daily and weekly billable hours, deduct lunch breaks, and handle overnight shifts past midnight automatically.
Billable Hours Calculator
Convert accumulated hours and minutes into invoiceable fee amounts with custom rounding increments (6m, 15m, 30m).
Mileage Reimbursement Calculator
Calculate tax-free business travel deductions using the official Belastingdienst rate (€0.23/km) or custom rates.
Business Trip Expense Calculator
Aggregate total business travel costs including mileage, air/train fares, hotel lodging, meals, and client entertainment.
Expense Splitter
Equitably divide shared project bills, software licenses, or coworking office costs among multiple partners or contractors.
Discount Calculator
Calculate discounted prices, total savings, and stackable coupon reductions for sales proposals and promotional pricing.
EU VAT / Sales Tax Comparison Tool
Compare VAT rates across major European jurisdictions (Netherlands 21%, Germany 19%, Belgium 21%, France 20%, UK 20%).
Savings & Tax Reserve Planner
Plan your monthly cash flow by setting aside the right percentage of income for income tax, health insurance (Zvw), and emergency buffers.
Asset Depreciation Estimator
Calculate annual tax write-offs for capital business equipment (computers, cameras, office furniture) using straight-line depreciation.
Invoice Payment Reconciliation Helper
Compare billed invoice amounts against actual bank deposits to instantly pinpoint underpayments, overpayments, or merchant fee deductions.
Optimizing Business Operations & Financial Health
Efficient time management and accurate cash flow tracking are the cornerstones of a scalable freelance practice. By tracking billable hours and forecasting tax reserves ahead of quarterly returns, European entrepreneurs can operate with total fiscal peace of mind.
Frequently Asked Questions about Financial Planning Tools
Yes. All formulas, tax percentages, rounding conventions, and statutory guidelines are benchmarked directly against official Dutch Tax Administration (Belastingdienst) and European Union VAT Directives.
No. Rompslomp.net operates on a strict client-side architecture. Every calculation and invoice preview runs in your device's browser memory. We never store, log, or sell your financial figures.
Yes. Our Free Invoice Generator includes an integrated A4 print style sheet. Clicking "Print / Save PDF" renders a clean, professional document formatted to meet European Factuureisen standards.
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