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Excel By Osko

Free Excel templates & financial tools

Practical Excel files and online calculators for individuals, self-employed people and SMEs in Belgium. Free to download, with no account or email address, and with an explanation of how each calculation works.

10 tools · 10 Excel templates · 3 calculators

Popular tools

All Excel templates
  • Excel templateOnline calculator

    Car cost calculator in Excel

    Work out what your car really costs per year, per month and per kilometre: depreciation, insurance, road tax, fuel or charging, maintenance and more.

    Individuals · Self-employedFree
  • Excel templateOnline calculator

    Loan repayment calculator in Excel

    Work out your monthly payment, see in a full repayment schedule how much interest and capital you pay each month, and find out what a loan costs you over its whole term.

    Individuals · Self-employedFree
  • Excel template

    Household budget template in Excel

    Line up your income, fixed costs and variable spending month by month and see straight away how much is left to save, with a comparison between budget and actual.

    IndividualsFree
  • Excel templateOnline calculator

    Part-time work: what is left net? (Excel)

    Compare your gross salary and an indicative net salary at 100, 90, 80, 60 and 50% and see the difference per month and per year, including the effect on holiday pay and the end-of-year bonus.

    IndividualsFree
  • Excel template

    Belgian personal income tax calculator in Excel

    Estimate the Belgian personal income tax on your salary or profit: tax brackets, personal tax allowance and municipal tax for assessment year 2026, with the assessment year 2027 figures already in the parameter sheet.

    Individuals · Self-employedFree
  • Excel template

    Salary vs dividend comparison in Excel

    Compare what is left net when your company pays out the same profit as director’s salary or as a dividend, with corporate tax, social contributions, personal income tax and withholding tax.

    Self-employedFree

Featured Excel templates

Fully worked-out files with visible formulas, notes on every input cell and a worked example.

All Excel templates
  • Excel templateOnline calculator

    Car cost calculator in Excel

    Work out what your car really costs per year, per month and per kilometre: depreciation, insurance, road tax, fuel or charging, maintenance and more.

    Individuals · Self-employedFree
  • Excel templateOnline calculator

    Loan repayment calculator in Excel

    Work out your monthly payment, see in a full repayment schedule how much interest and capital you pay each month, and find out what a loan costs you over its whole term.

    Individuals · Self-employedFree
  • Excel template

    Household budget template in Excel

    Line up your income, fixed costs and variable spending month by month and see straight away how much is left to save, with a comparison between budget and actual.

    IndividualsFree

Online calculators

No download needed: enter your figures and see the result immediately, together with the assumptions.

All calculators
  • Excel templateOnline calculator

    Car cost calculator in Excel

    Work out what your car really costs per year, per month and per kilometre: depreciation, insurance, road tax, fuel or charging, maintenance and more.

    Individuals · Self-employedFree
  • Excel templateOnline calculator

    Loan repayment calculator in Excel

    Work out your monthly payment, see in a full repayment schedule how much interest and capital you pay each month, and find out what a loan costs you over its whole term.

    Individuals · Self-employedFree
  • Excel templateOnline calculator

    Part-time work: what is left net? (Excel)

    Compare your gross salary and an indicative net salary at 100, 90, 80, 60 and 50% and see the difference per month and per year, including the effect on holiday pay and the end-of-year bonus.

    IndividualsFree

How does it work?

  1. 1

    Pick a tool

    Search by topic or audience. Every page explains what the tool does, who it is for and which assumptions it contains.

  2. 2

    Download or calculate

    Download the Excel file immediately or use the online calculator. No registration, no email address, no pop-up.

  3. 3

    Adapt it to your situation

    The files are not protected. Formulas stay visible, so you can understand and adjust them.

Osko Consult

Need something similar for your own business?

Osko Consult helps businesses with financial planning, dashboards, Excel solutions and custom automation. From a one-off model to fully automated reporting.

About Osko Consult

Excel By Osko is an initiative of Osko Consult, a Belgian firm that helps businesses with dashboards, Excel solutions, reporting and custom automation. The free tools on this site show how we work: clear, well-founded and immediately useful.

Frequently asked questions

Are the Excel templates really free?

Yes. You download them without an account, without an email address and without paying. You may use them for personal and professional purposes. Reselling is not allowed.

Which version of Excel do the files work with?

The files use the .xlsx format and work in Excel 2016 and newer, Microsoft 365, and usually also in LibreOffice Calc and Google Sheets. If a file relies on a newer function, the tool page says so.

Are the calculations correct for tax or legal purposes?

The tools give an indication based on the listed sources and assumptions, with the date of the last update. They do not replace advice from an accountant, tax adviser or financial adviser. Have the figures checked before important decisions.

Can I have a custom version made?

Yes. Osko Consult builds Excel solutions, dashboards and automations tailored to businesses and self-employed people. Get in touch and briefly describe what you need.