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Stay in control of your freelance income and tax.
A friendly tool for freelancers to calculate, track, and reserve their net income and income tax in one place.
The problem
No clear picture of your real income? That sounds familiar.
As a freelancer you work hard, send invoices on time, yet still guess what actually remains. You park money for taxes by feel or rough estimates until filing season hits, and it’s either too little or way too much.
Uncertainty
You’re never sure if you reserved enough for income tax.
Company car
You hesitate about the net impact of a company car or the smarter option.
Missing tax benefits
You consider disability or annuity insurance but don’t know the monthly effect.
Buying a home
You wonder how much your mortgage interest deduction actually saves.
Investing
You hear about the WBSO yet have no idea how much tax it could save.
Tax office
Meanwhile the tax authority keeps changing the rules every year.
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The solution
From uncertainty to complete clarity.
Every month your salary is recalculated using your latest figures, so you always know where you stand. See how much tax to reserve, which deductions benefit you, and how your net income evolves throughout the year, all in one always up-to-date view.
From gross profit → net pay
Enter your gross profit and NettoWise immediately calculates what remains for you and how much the tax office expects.
January
1gross profit
€6,500
tax
€1,013
net
€3,999
160
February
2gross profit
€7,340
tax
€1,392
net
€4,460
180
March
3gross profit
€5,650
tax
€557
net
€3,606
145
April
4gross profit
€6,230
tax
€823
net
€3,919
155
More clarity. Less stress. More time.
NettoWise gives freelancers control over their income without spreadsheets, guesswork, or constant accountant input.
Per month
Box 1 made simple.
NettoWise automatically includes every Box 1 component, from the self-employed deduction and SME profit exemption to rate changes.
See it in action
From gross profit to net income in a few steps.
Watch how NettoWise calculates your net income, reserves taxes, and gives you a clear monthly overview.
Calculate your net income every month.
By automatically combining your profit, costs, and deductions, you instantly see how much salary you can withdraw and what you should set aside for taxes.
Salary per month
Get a clear monthly breakdown of gross profit, costs, taxes, and net income, calculated in one view.
Tax savings made clear
NettoWise highlights how deductions reduce your tax bill and helps you actively lower it.
Always up to date and exact
NettoWise recalculates your salary each month using the latest data so you finish the year spot-on without corrections or surprises.
Year overview at a glance
Spot income and cost trends throughout the year, plus average net income and tax burden.
Create a draft salary in minutes.
The same drawer guides you through three focused steps. Decide how you enter gross profit, attach the right invoices, and finish with clear details before saving.
Create concept
Kind
Choose how you would like to fill in the salary or what kind it is.
Enter gross profit
Enter your gross profit manually or based on your hourly rate.
always excl. VAT
€EUR
Select/upload invoices
Select invoices from your accounting software or upload a UBL file.
2024-104
Jun 4, 2024•Studio Kanaal
€8,500.00
Select/upload invoice
UBL
1 invoice selected (€8,500.00)
Integrations
Pick invoices straight from connected tools like MoneyBird, e-Boekhouden.nl, and Rompslomp.
UBL invoices
Upload UBL invoices to spin up a draft salary in seconds.
Concept salaries
When creating a salary, always create a draft first. This gives you a better understanding and allows you to confirm it later.
Every salary component in one clear view.
Combine entrepreneur deductions, expenses, deprecations, and your company car into a single salary breakdown and instantly understand the impact on your net pay.
Deductible premiums
Enter your annuity and disability insurance premiums once and NettoWise applies them across the entire tax year automatically.
Business expenses
Track recurring and one-off business expenses—from software to marketing—so every deductible cost is included in your salary run.
| Name | Type | Frequency | Amount | |
|---|---|---|---|---|
| Boekhoudsoftware | Office expenses | Monthly | €14.00 | |
| Coworking-plek | Office expenses | Once | €119.00 | |
| Cloudopslag en back-ups | Office expenses | Annually | €48.50 | |
| Betaalde advertenties | Sell expenses | Monthly | €250.00 | |
| Zakelijke telefoon en internet | Office expenses | Annually | €95.00 | |
| Domein: nettowise.nl | Sell expenses | Annually | €21.00 | |
| OpenAI ChatGPT | costs.type.general | Monthly | €19.00 |
Deprecations
Add an asset once and NettoWise spreads the depreciation over the coming years so every salary run reflects the right amount.
Actief
NIO ET5
Purchase value
€50,000.00
Current value
€40,000.00
Residual value
€25,000.00
Monthly depreciation
€416.67
May 1, 2024
5 years
May 1, 2029
25 months
Timeline
Progress of this depreciation
41%
012345
Salaries
This depreciation was included in the following salaries
| Salary | Amount | Residual value after booking |
|---|---|---|
| No data | ||
Company car
Add your business car once, pick benefit-in-kind or mileage reimbursement, and have NettoWise include it automatically in your net salary run.
Owner-occupied home
Provide your mortgage details to include mortgage interest relief, and we’ll also factor in purchase or ground lease amounts as soon as you add them.
Entrepreneur deduction
Set the self-employed deduction, starter allowance, and WBSO for your tax year and watch how your taxable profit changes.
Self-employed deduction
€2,470.00 per year
Starter allowance
€2,123.00 per year
Research & development deduction (WBSO)
€23,613.00 per year
Connect your accounting software and save time.
Link NettoWise to your accounting tool, select invoices and turn them into a salary instantly. Import costs so you never have to enter them twice.
MoneyBirdSnelStarte-BoekhoudenJorttRompslompSelect invoices
Pick invoices from your accounting software and turn them into a net income calculation right away.
2025-042
Studio Horizon
€6,500.00
2025-043
Blue Delta B.V.
€3,200.00
2025-046
NettoWise
€7,150.00
3 invoices selected
6 lines selected
Costs€3,370.00
Profit€13,480.00
Tax-€4,582.00
Net€8,898.00
Import costs
Import business expenses from your accounting tool so you never have to enter them twice.
3 costs imported
Last updated: just now
Boekhoudsoftware€14.00
Cloudopslag€48.50
Zakelijke telefoon€95.00
Total€157.50
Less manual work
Done in a few steps — no double entry or manual retyping needed.
Frequently asked questions
Everything freelancers ask before committing to NettoWise.
Did you get curious?
Let NettoWise handle the numbers
Calculate, plan, and reserve your net income in a few steps so you always know where you stand.
- More scenariosInclude pension, WBSO, owner-occupied home and other box 1 income in the same calculation.
- Smart importsPull in revenue and costs from your bookkeeping instead of copying everything manually.
- Live net insightSee what you keep each month and how much tax buffer you should set aside.
