Gylder Insights

Tips, guides, and updates about personal finance and net worth tracking.

Releases, Product Updates5 min read

Gylder v1.0: Your bank, connected

Link your bank once and your balances and transactions turn up on their own, with two years of history behind them. Savings accounts get a home, every account gets its own page, and transfers between your own accounts stop counting twice.

Read the post
Net Worth6 min read

Putting in your own money on a mortgage: why the return beats the rate

€35,000 of own capital on a €350,000 mortgage delivers an 8.15% effective return, higher than the mortgage rate itself. That comes from a double effect most calculators don't show.

Read the post
Net Worth7 min read

Severance pay as bridge capital: how many years does it buy?

Every calculator online shows you the gross amount of your statutory severance pay. None of them answer the question that actually matters: how many years does that cover if you want to stop working early?

Read the post
Net Worth6 min read

The Dutch deposit guarantee: why "per bank" isn't the same as "per licence"

Your savings are protected up to €100,000, but that limit applies per banking licence, not per brand name. ASN, RegioBank and SNS share one. Not knowing that can leave you unknowingly over the limit.

Read the post
Investing6 min read

Calculating purchasing power and real returns, and the mistake almost everyone makes

Nominal return minus inflation isn't your real return, even though it looks that way. The gap is small per year and compounds to tens of thousands over thirty years.

Read the post
Net Worth7 min read

Savings mortgages and endowment policies: why your debt is lower than your statement shows

A savings mortgage shows €250,000 of debt on your statement. With €95,000 in the linked policy, your real net debt is €155,000. Almost nobody ever sees those two figures side by side.

Read the post
Net Worth7 min read

Buying out a partner's share of a shared home: the arithmetic

At €200,000 of equity and a fifty-fifty split, the buyout amount is €100,000. But the new mortgage that follows is usually the real obstacle, not the buyout sum itself.

Read the post
Investing6 min read

Saving or investing for your child: the difference over eighteen years

At €50 a month, investing delivers €5,927 more than saving by the eighteenth birthday. Start early and the gap widens further, and there's a practical risk most parents overlook.

Read the post
Net Worth7 min read

Municipal valuation versus market value: why objecting can cost you money

Reducing your municipal valuation by €30,000 saves you sixty to a hundred euros a year. But if your lender uses that valuation for your risk band, the same reduction can cost you five hundred.

Read the post
Net Worth7 min read

Pension as a self-employed person: the gap is bigger than you think, and bigger the less you spend

As a self-employed person you miss the second pension pillar entirely. At €40,000 of spending and stopping at sixty, that's €227,975 of extra wealth. At lower spending the gap is proportionally larger still.

Read the post
Net Worth8 min read

Overpaying your mortgage: when it pays and when investing wins

Repaying gives a guaranteed return equal to your mortgage rate. But there's a way of repaying that yields up to eighteen percent, and almost nobody knows it.

Read the post
Net Worth9 min read

Releasing home equity: what it costs per month, and when it makes sense

Releasing €100,000 of equity costs roughly €507 a month at 4.5%. Here are the amounts per loan size, the three routes, and the point where it stops adding up.

Read the post
Net Worth8 min read

Survivor's pension: why cover stops three months after your last working day

Under the new pension law, survivor's pension before your retirement date became insurance rather than a savings pot. Leave employment and it lapses after three months.

Read the post
Net Worth8 min read

Transferring your pension: why the old arguments no longer apply

The reasons for taking your pension to a new employer have largely disappeared under the new system. One new reason has appeared, and it comes with a date.

Read the post
Net Worth7 min read

The Dutch 80-90-100 arrangement: what it gains you and what it costs

Twenty percent less work for ten percent less salary, with full pension accrual. Worked through, you buy a free day at fifty percent off. Here's where the catches sit.

Read the post
Net Worth9 min read

The Dutch early-exit scheme in 2026: amounts, conditions and what changed

Since 1 January 2026 the early-exit scheme is structural and restricted to heavy work. The payment is €2,357 gross a month, roughly €1,558 net. What that covers and what it doesn't.

Read the post
Net Worth6 min read

How much do Dutch households have in savings, and how much is enough?

With €36,900 in savings you're in the wealthier half of the Netherlands. But the average is the wrong measure, because savings lose value and the question is how much you need.

Read the post
Investing7 min read

Calculating rental property returns: why 5.6% is actually negative

A €300,000 property yielding €1,400 a month looks like a 5.6% return. Worked through with costs and mortgage interest, the cash flow is negative. Here's why.

Read the post
Net Worth8 min read

Becoming financially independent: six steps, ranked by what they gain you

Most advice gives you a list. This gives you an order, with each step calculated in years taken off your timeline. The biggest surprise sits at number two.

Read the post
Net Worth7 min read

When are you rich? Four thresholds, and the only one that means anything

The top ten percent starts at €680,000. The median sits at €135,500. But neither figure tells you whether you have enough, because being rich is a comparison and having enough is a calculation.

Read the post
Net Worth7 min read

How much money do you need to stop working? The table

At €3,000 a month of spending and stopping at sixty you need roughly €330,000. Find your own combination of spending and age in the table.

Read the post
Net Worth8 min read

Savings rate: the table everyone copies, and why it doesn't apply to the Netherlands

Your savings rate determines your timeline more than your return does. The well-known table from the FIRE movement comes from America and overstates the Dutch timeline by up to twenty-two years.

Read the post
Net Worth7 min read

Loan to value: what it is, and why it lowers your payment without you doing anything

Your loan to value is your outstanding mortgage divided by your property value. Drop below a threshold and you can request a lower rate. Plenty of people cross one without noticing.

Read the post
Releases1 min read

Gylder v0.5.1: What's New

A minor release, mostly about time. Mortgages get a history of their own, assets with no market price can follow a curve between valuations, and the long lists have a search box.

Read the post
Net Worth, Investing3 min read

Building passive income: what it is and what it is not

Passive income is rarely passive. A level-headed look at the forms it takes, what they actually produce, and how to measure whether it is working.

Read the post
Security, Investing3 min read

What is PSD2, and what can an app do with your bank data?

PSD2 lets you share your bank data with an app you choose. What such an app can see, what it cannot do, and how to withdraw access.

Read the post
Guides, Net Worth3 min read

Reading your DEGIRO annual statement, and which file you actually need

DEGIRO gives you three different statements and most people take the wrong one. What each contains, and why the transaction list skews your return.

Read the post
Net Worth3 min read

When are you rich in the Netherlands?

At €680,000 you join the wealthiest ten per cent of households. At a million, the top 5.5 per cent. What those thresholds mean and why they mislead.

Read the post
Investing7 min read

Dividends as income: what they are, what you need, and the figure that grows

A dividend is your share of a company's profit. For a thousand euros a month of dividend income at a 3% yield you need four hundred thousand. And there's one figure that does rise every year.

Read the post
Investing7 min read

Passive income: what it really costs, and why almost nothing is truly passive

A thousand euros a month of passive income requires three hundred thousand in capital. That's the figure missing from nearly every article on the subject, and it changes the whole question.

Read the post
Net Worth7 min read

Becoming financially independent: six thresholds, each with its own figure

Financial independence isn't a moment but a ladder. The first rung costs twenty thousand, the last six hundred thousand. And the most important one sits between them, far lower than people expect.

Read the post
Net Worth2 min read

Volatility: what it means and how to read it

Volatility measures how much your portfolio moves around its own average. It is the raw material for almost every other risk measure. Here is how it is calculated and how to read it.

Read the post
Net Worth7 min read

Living off €500,000: is it possible, and what can you spend?

Half a million supports more in the Netherlands than the standard calculation suggests, because state and occupational pensions take over part of it. Stopping at sixty, that's nearly €43,000 a year.

Read the post
Net Worth2 min read

Sharpe ratio: return set against risk

The Sharpe ratio measures how much return a portfolio produced per unit of volatility. How it is calculated, how to read it, and why two Sharpe ratios are rarely comparable.

Read the post
Net Worth7 min read

Living off your returns: what it means and what it costs in the Netherlands

Living off your returns means never touching your capital. That's stricter than FIRE and it costs more. But state and occupational pensions bring the figure below what the standard calculation suggests.

Read the post
Net Worth2 min read

Portfolio: what it is and why the split matters

A portfolio is the whole of your investments. The names do not drive the result, the weighting does. How to read weight, spread and concentration.

Read the post
Net Worth2 min read

Diversification: why spread is more than a count of positions

Diversification means spreading your money so one setback does not decide your result. Twenty names is not spread if they all move the same way.

Read the post
Net Worth2 min read

Dividend yield: why a rising percentage is rarely good news

Dividend yield is the income a position pays relative to what it is worth today. Because price sits in the denominator, the percentage moves whenever the price does.

Read the post
Net Worth2 min read

Asset allocation: the split across classes, not across names

Asset allocation is how your wealth is divided across classes: equities, bonds, property, crypto and cash. A different question from which positions you hold.

Read the post
Net Worth7 min read

When are you a millionaire? The figures, and why it's the wrong question

The Netherlands has 452 thousand millionaire households, one in eighteen. But a million is a round number without meaning, and for most Dutch households the target that matters sits lower.

Read the post
Net Worth7 min read

Average wealth by age in the Netherlands, and why the figure misleads

The average Dutch household holds €333,500 in wealth. Half hold less than €135,500. That gap of nearly two hundred thousand explains why these figures confuse more often than they help.

Read the post
Net Worth7 min read

Early pension and working: is it allowed, and what does it gain you?

There's no earnings limit on your occupational pension. But earning before your state pension date is worth less net than after, and that changes the calculation.

Read the post
Net Worth3 min read

Calculating your portfolio's real return

Profit divided by contributions gives the wrong answer the moment you add money mid-year. Here is how to work out what your investments actually returned.

Read the post
Net Worth7 min read

Retiring at 60: why this is a completely different story from retiring at 65

Stopping at sixty requires roughly €476,000 of your own wealth. Your pension falls 39%, no scheme helps you, and it's above all a decision about timing.

Read the post
Net Worth6 min read

Retiring at 65 in the Netherlands: what it costs, and why the choice isn't financial

Sixty-five still feels like the retirement age, but it now means retiring two years early. What that costs, and why it barely matters whether you start your pension then.

Read the post
Net Worth7 min read

The drawbacks of taking your pension early, and which ones actually matter

The best-known criticism of drawing your pension early is that your payment falls permanently. That's true, and it isn't the biggest drawback. The real costs sit elsewhere.

Read the post
Net Worth8 min read

Taking your pension early: what it costs, and the option almost nobody explains

Starting your occupational pension early permanently lowers your payment. But there's a variant that boosts precisely the years before your state pension begins, and it's rarely explained.

Read the post
Net Worth7 min read

Dutch state pension age: the table to 2031, and why yours may not be fixed yet

State pension age is 67 and rises to 67 years and 3 months in 2028. For anyone born on or after 1 October 1964 the date isn't fixed yet, and that affects every calculation about retiring early.

Read the post
Net Worth8 min read

How much Dutch state pension will I get? Amounts, accrual and what missing years cost

Your state pension depends on two things: whether you live alone or with a partner, and how many years you were insured in the Netherlands. With current amounts and what a gap in your accrual means for your stop date.

Read the post
Net Worth7 min read

Calculating early retirement: at what age can you stop?

Not what you need at a chosen date, but the reverse question: given your current wealth and what you set aside, when can you stop? In five steps.

Read the post
Net Worth8 min read

Retiring ten years early: what it costs and when you have to start

Stopping at 57 requires roughly €544,000 at €40,000 of annual spending. No scheme reaches that far, so it comes entirely from your own wealth. Which makes it mainly a question of when you begin.

Read the post
Net Worth8 min read

What does retiring three years early cost? Calculated, in two parts

Stopping three years early costs roughly €131,000 at €40,000 of annual spending. That figure has two components, and the Dutch early-exit scheme covers about half of it.

Read the post
Net Worth9 min read

Retiring early in the Netherlands: the two routes, and which one is open to you

There are two ways to stop working early: through your employer and pension scheme, or through your own wealth. The first route narrowed sharply in 2026. The second is open to everyone.

Read the post
Net Worth8 min read

Lean FIRE and Fat FIRE: the same sum, a different life

The two extremes of the FIRE spectrum differ in only one input: what you spend. But in the Netherlands that difference plays out very differently from the United States.

Read the post
Net Worth8 min read

The three pension pillars: which one pays for your bridge years, and which doesn't

State pension, occupational pension and private annuities each do something different in a FIRE calculation. And none of the three pays for the years in which you actually want to stop early.

Read the post
Net Worth8 min read

Barista FIRE: working part-time through your bridge years, and what it saves

Your wealth covers part of your spending and you earn the rest doing work you choose. The name comes from the American healthcare system: in the Netherlands it works differently, and more favourably.

Read the post
Releases5 min read

Gylder v0.5.0: What's New

The investments section is rebuilt: one dashboard where diversification, performance and dividends all answer to the same filter, a holdings table whose columns you choose, closed positions, and a date field that shows the portfolio as it stood on any past day. Assets and liabilities now read like a statement.

Read the post
Net Worth9 min read

Coast FIRE: the point where you never have to contribute again

Coast FIRE is the milestone where your accumulated wealth grows into enough for retirement on its own. In the Netherlands that point arrives startlingly early, and means less than it appears.

Read the post
Net Worth10 min read

The 4% rule: where it comes from and what breaks when you take it literally

The best-known rule of thumb in the FIRE movement comes from American research in the nineties, covers thirty years, and means something different from what almost everyone assumes.

Read the post
Net Worth10 min read

Calculating your FIRE number: the arithmetic in four steps

Four inputs, four steps, one number and one date. Including the Excel formulas and the three assumptions your calculation reacts to most sharply.

Read the post
Net Worth10 min read

The FIRE movement in the Netherlands: why the American formula doesn't apply here

FIRE says you need twenty-five times your annual spending. That rule of thumb comes from a country without a state pension and without mandatory occupational pensions. In the Netherlands your number is considerably lower.

Read the post
Net Worth11 min read

Calculating your home equity: and where it actually comes from

Home equity is your property value minus your outstanding mortgage. Simple enough. In practice people trip over municipal valuations, multiple loan parts, and the question of how much of it they actually built themselves.

Read the post
Investing10 min read

Compound interest: why starting ten years earlier beats contributing three times as much

Returns on your returns. It sounds dull and it's the most powerful mechanism in your financial life, but it works more slowly than you hope and it doesn't fix what you think it fixes.

Read the post
Investing12 min read

Calculating investment returns: why you get two different answers

There are two ways to calculate your investment return, and they give different numbers. Which one you need depends on what you want to know: how your funds performed, or how you performed.

Read the post
Releases3 min read

Gylder v0.4.0: What's New

Paid plans are live: Basic and Pro, with a 14-day trial. Plus refer-a-friend that earns you both a free month, plan-change notifications, self-service two-factor recovery, and a refreshed look across the site.

Read the post
Releases3 min read

Gylder v0.3.0: What's New

A balance-sheet home view, transaction auto-categorisation, real depth on the investments tab, and saved views and tags that follow how you actually think about your money. Plus idle auto-logout and faster page loads.

Read the post
Releases2 min read

Gylder v0.2.0: What's New

Property and mortgage tracking lands, with multi-part Dutch loans, a lifetime equity chart, and an LTV stat. Plus same-day security closes and smarter DeGiro imports.

Read the post
Releases2 min read

Gylder v0.1.0: What's New

Our first tagged release. DeGiro positions that move with the market, one product page for everything you own, a faster CSV import, and a redesigned dashboard.

Read the post
Security3 min read

How Gylder Protects Your Financial Data

Your financial data is some of the most sensitive information you have. Here's how Gylder encrypts, stores, and protects it — without cutting corners.

Read the post
Security3 min read

Your Data, Your Privacy: Gylder and GDPR

Gylder is built from the ground up for GDPR compliance. Here's what that means in practice — data export, account deletion, cookie consent, and your rights.

Read the post
Guides3 min read

Alerts and Insights That Keep You on Track

Gylder monitors your finances and notifies you when something important happens — net worth drops, sync failures, crypto crashes, and all-time highs.

Read the post
Net Worth3 min read

How Your Net Worth History Is Built

Your net worth chart doesn't start from zero when you sign up. Gylder reconstructs your financial history using transaction data and daily snapshots. Here's how.

Read the post
Net Worth2 min read

Understanding Your Portfolio Breakdown

Gylder groups your wealth into clear categories — cash, investments, crypto, and debts. Here's how the portfolio view works and what it tells you.

Read the post
Guides3 min read

Adding Real Estate, Cars, and Other Assets Manually

Not everything connects via an API. Gylder lets you manually track property, vehicles, pensions, gold, debts, and more — so your net worth is truly complete.

Read the post
Crypto3 min read

Tracking Crypto Across Bitvavo, Kraken, and Coinbase

Gylder imports your full trade history from Bitvavo, Kraken, and Coinbase — every buy, sell, deposit, and withdrawal. Here's how it works.

Read the post
Guides3 min read

Connecting Your Bank Accounts to Gylder

Learn how Gylder uses open banking (PSD2) to securely connect your bank accounts and keep your balances up to date — without ever seeing your login credentials.

Read the post
Guides2 min read

Why You Need One Dashboard for All Your Money

Your financial life is scattered across banks, brokers, and crypto exchanges. Here's why consolidating everything into a single view changes how you manage money.

Read the post
Net Worth3 min read

What Is Net Worth and Why Should You Track It?

Your net worth is the single best measure of financial health. Learn what it means, how to calculate it, and why tracking it regularly changes your financial behaviour.

Read the post
Crypto2 min read

How to Track Your Crypto Portfolio Alongside Traditional Investments

Crypto lives on different platforms than your bank and broker. Here's how to get a unified view of all your assets in one place.

Read the post
Guides2 min read

5 Financial Habits That Actually Build Wealth

Wealth isn't built by earning more — it's built by consistent habits. These five practices separate people who build wealth from those who don't.

Read the post