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Practical guides, how-tos and comparisons to get the most out of our free online tools.

July 27, 2026
Guide · Property

Furnished or Unfurnished in France: the Real Gap Once Tax Is Paid

Furnishing a flat moves it from one tax code to another: 50 % of the rent is written off instead of 30 %, and a landlord on the full regime can depreciate the building. Since 15 February 2025 that depreciation is clawed back on sale, which changes the whole calculation.

Marco Bianchi · 10 min read

July 24, 2026
Explainer · Business

Measuring Your Market Share When Nobody Knows the Size of the Market

The numerator is on your own invoices. The denominator is the problem, and the usual fixes make it worse. How to build one from what you can actually observe, why the served market and the total market give answers a hundred times apart, and why a share on the wrong denominator is worse than no number at all.

Camille Laurent · 16 min read

Comparison · Property

Renting or Buying: the Break-Even in Years, and What Actually Moves It

Buying beats renting after a number of years, and that number is computable. On the same house, the same loan and the same year, it lands on 6 in Madrid, 7 in France and 8 in Catalonia — purely because of what the purchase costs on the way in. But the purchase cost is not the biggest lever, and this article shows which one is.

Camille Laurent · 13 min read

Comparison · Property

Selling a Second Home: Only One of These Three Countries Rewards Holding It

France tapers the tax on a property gain to zero over twenty-two and then thirty years. Spain does not taper at all for anything bought after 1994. Portugal has no taper either — it has an inflation index and a fifty per cent haircut, which is a different animal entirely.

Camille Laurent · 11 min read

July 23, 2026
Comparison · Finance

Give Now or Leave It: Where France and Germany Put the Threshold

France lets a parent pass 100,000 euros to a child free of duty and resets the counter every fifteen years. Germany allows 400,000 euros and resets it every ten. On the same 500,000-euro transfer the French bill is seven times the German one, and the gap widens with every decade you have.

Camille Laurent · 10 min read

Comparison · Finance

The Same Flat, Three Countries: What a Child Really Pays to Inherit

One flat worth 400,000 euros, one only child, three countries. France charges tens of thousands. Italy charges nothing. Spain charges anything from nothing to 76,000 euros depending on which of its seventeen regions the parent lived in — and that is not an exaggeration.

Camille Laurent · 11 min read

July 22, 2026
Comparison · Business

Travel Expenses: Flat Rate or Actual Cost, and Where the Threshold Sits

The threshold everyone asks about exists in France, and it turns out to be the scale figure itself. In Germany it does not exist for meals at all, and in Spain the employee never gets the choice. Three designs, with the instrument and the year behind every number.

Camille Laurent · 21 min read

Comparison · Business

Unemployment Benefit in France, Germany and Spain: How Long, and How Much

One person, one salary, one length of service, three answers that differ by more than sixteen thousand euros. The percentage is not applied to the same quantity in the three countries, the duration is built from a different fraction, and only one of the three cuts the payment after six months.

Camille Laurent · 19 min read

July 21, 2026
Explainer · Business

A Quotation: What Commits You Legally, and What Must Appear On It

The same document has opposite default effects on either side of the Rhine: in France a signed fixed-price quotation forbids any increase, in Germany an estimate carries no guarantee of correctness unless the contractor took one on. Plus the particulars that are general, the ones that are trade rules, and why a free quotation is not free.

Camille Laurent · 8 min read