How to Track Net Worth in 2026 — EU Tools and Methods

Net worth is the single most honest number in personal finance. Income tells you what comes in, spending tells you what goes out, but net worth tells you what is actually yours. Across Europe, where investors juggle bank accounts in EUR, brokerage accounts in USD, real estate priced in local currency, and increasingly crypto on top, calculating that number is harder than most templates make it look.

This guide walks through the formula, the categories that matter, the multi-currency problem, the tools (spreadsheets, dedicated apps, bank aggregators), and a worked European example for May 2026.

Quick Answer

Net worth equals the market value of everything you own minus everything you owe. For most EU households the asset side covers cash, brokerage, retirement, real estate, vehicles, and increasingly crypto and small business equity. Liabilities are mortgage, consumer loans, credit cards, and tax payable. Pick one base currency (usually EUR), value foreign assets at the spot ECB rate on the same day, and update at least monthly. A spreadsheet works fine for fewer than five accounts; once you have multiple brokers, two banks, and a pension, a dedicated tracker (Freenance, Sharesight, Snowball Analytics, Parqet) saves hours each month and reduces input errors. Aim for consistency, not precision — measure the same way every period so the trend line is meaningful.

Tools at a Glance

Methodology (May 2026)

We compiled this guide from official sources cited below, the ECB reference rates page (reading dated 2026-05-05), and feedback from European retail investors using multi-broker setups. Pricing reflects published tier sheets in May 2026 and may change. Tax notes are general information, not advice. Where ranges are given (for example real estate valuation tolerance), we use figures consistent with how EU national statistics offices publish residential price indices.

What Net Worth Actually Is

The accounting definition is the same one a company uses on its balance sheet:

Net Worth = Total Assets − Total Liabilities

The trick for individuals is what counts on each side. The honest answer is: anything with a market value you could realistically convert to cash within twelve months goes on the asset side, and anything you owe goes on the liability side. Items you would never sell (a wedding ring, a car you depend on for work) are still assets, but you should value them conservatively.

Asset Categories

Cash and cash equivalents. Current accounts, savings accounts, money market funds, term deposits with under twelve months to maturity, and physical cash. Easy to value: the bank statement number is the truth on the day you check it.

Brokerage and investment accounts. Stocks, ETFs, bonds, mutual funds, investment trusts. Mark to market — use the closing price on your snapshot day. If you hold across multiple brokers (DEGIRO + XTB + Trading 212 + Interactive Brokers), each one is a separate line in your tracker.

Retirement accounts. IKE, IKZE, PPK, OFE in Poland; PEA and Assurance Vie in France; ISA and SIPP in the UK; private pensions across the EU. Use the current valuation, not the contribution amount. These are still your money even if they are tax-locked until age 60.

Real estate. Primary residence, rental property, land. Value at current market price, not purchase price. Use a recent appraisal, comparable sales in the same building or street, or a national index update applied to your last appraisal. Be conservative — if you would not list at the price tomorrow, do not put it in the tracker.

Crypto. Bitcoin, Ethereum, stablecoins, anything else you hold on Coinbase, Kraken, Binance, or a hardware wallet. Mark to market on your snapshot day. Stablecoins count as cash equivalents only if they are USDC or EURC — not less battle-tested issuers.

Business equity. If you own part of an operating business, this is where it goes. Valuation is a multi-page topic on its own; conservative defaults are 1× annual revenue for service businesses or 4–6× EBITDA for established small businesses. Many EU investors leave this at book value (what they invested) until a real liquidity event.

Vehicles and other tangible assets. Cars, motorcycles, boats. Use a market guide (Otomoto for Poland, Mobile.de for Germany, AutoScout24 across the EU) and apply a buyer-side discount of about 10%. Most personal items (furniture, electronics, clothes) should not be in the tracker — the resale value is a fraction of the replacement cost and noise dominates signal.

Liability Categories

Mortgage. The principal balance, not the original loan amount. If you have an offset account, treat the offset cash as cash and the full mortgage as liability — do not net them.

Consumer loans. Car loans, personal loans, student loans, BNPL balances if they extend beyond 30 days.

Credit cards. The current statement balance. If you pay in full each month, it is technically a liability for a few weeks per cycle. The cleanest method is to mark it as a liability whenever the statement is open.

Taxes payable. If you have a known tax bill coming (capital gains from a December disposal not yet settled, self-employed VAT, PIT-38 in Poland), treat it as a liability until paid. Forgetting tax owed is the most common reason people overstate net worth.

Other. Family loans, deposits owed back to tenants, deferred consideration on a sold business.

The Multi-Currency Problem

This is where European investors trip up. A typical EU portfolio in 2026 looks like:

• EUR cash in a domestic bank
• USD-denominated US ETFs at Interactive Brokers
• GBP holdings in a legacy UK ISA
• PLN cash in a Polish current account
• BTC on Kraken (priced in USD or EUR depending on pair)
• Real estate priced in the local currency

You need a single base currency to make the total meaningful. For most EU residents that is EUR. The mechanics:

1. Pick one base currency and stick with it for at least a year.
2. Use the same FX source consistently — the ECB reference rates published daily at 14:15 CET are the canonical European choice.
3. Convert each non-base account at the spot rate on your snapshot day. Do not use the average rate over the month.
4. Record the FX rate alongside the balance so future-you can reconstruct the calculation.

The mistake to avoid is mixing rates — converting USD with the rate from the day you bought, EUR cash at today, and GBP at last quarter's rate. Pick one date per snapshot.

Methods Compared

Method 1: Spreadsheet (Excel or Google Sheets)

Simple, transparent, infinitely customisable. A net worth sheet has one tab per asset/liability category and a summary tab. In Google Sheets, =GOOGLEFINANCE("CURRENCY:USDEUR") pulls live FX rates. For listed securities, =GOOGLEFINANCE("VWCE","price") works for many EU tickers. For private values (real estate, business equity) you type them manually.

Strengths: full control, no subscription, no privacy concerns, exports to anywhere.

Weaknesses: manual entry for every account snapshot. Easy to fat-finger a number. No history unless you copy the sheet each month.

Method 2: Dedicated Tracker App

Apps like Freenance, Sharesight, Snowball Analytics, Parqet, and Getquin specialise in pulling positions from brokers automatically and calculating consolidated values. The good ones handle multi-currency natively, store historical snapshots, and show net worth as a chart over time.

Strengths: less manual work, fewer errors, automatic FX, time-series charts that motivate consistency.

Weaknesses: subscription cost, broker coverage gaps (especially for smaller EU brokers), and you trust the app with read-only credentials or CSV uploads.

Method 3: Bank Aggregator (Open Banking PSD2)

PSD2 is EU regulation that requires banks to expose account data via API to authorised aggregators. Tink (Visa-owned), Kontomatik (Polish), and a handful of others use it to pull balances automatically. In the US, Plaid plays the same role. EU coverage in 2026 is good for major banks across DACH, Benelux, Nordics, Spain, Italy, France, and Poland; smaller cooperative banks can still be patchy.

Strengths: balances update on their own; no manual entry for cash and credit cards.

Weaknesses: only covers banks (not brokers, not real estate). Most aggregators are accessed through a host app rather than directly.

The realistic stack for most EU investors in 2026 is: a tracker app for investments, an Open Banking feed for cash, and a manual line for real estate updated quarterly.

Worked Example

Anna is 38, lives in Warsaw, base currency EUR, and snapshots on 2026-05-07. ECB EUR/PLN reference rate that morning: 4.28. EUR/USD: 1.09.

Assets:

• EUR savings at N26: €18,000
• PLN current at mBank: 12,000 PLN → €2,804
• DEGIRO (VWCE + IWDA + EM ETF): €145,000
• Interactive Brokers (US tech, USD): $42,000 → €38,532
• IKE Obligacje (PLN, retail treasury bonds): 64,000 PLN → €14,953
• Apartment in Warsaw, last appraisal 2026-Q1: 920,000 PLN → €214,953
• BTC on Kraken: €15,000

Total assets: €449,242

Liabilities:

• Mortgage on apartment, principal: 540,000 PLN → €126,168
• Credit card statement balance: €1,200

Total liabilities: €127,368

Net worth: €321,874.

A simpler stylised version of the same shape — €350,000 in total assets minus €180,000 mortgage equals €170,000 net worth — is the round-number example you will see in introductory guides. Real portfolios are messier; that is exactly why you need a system.

What matters for Anna next month is the change. If brokerage gains €4,000, the apartment index moves +0.5%, mortgage drops €600, and credit card is paid off, the new figure tells her how much progress she made — far more useful than knowing income or spending in isolation.

Pitfalls

Inconsistent valuation dates. Pulling brokerage on Friday, bank balance on Monday, and crypto on Wednesday makes the snapshot meaningless. Use one date.

Double-counting. A common error: counting both the gross value of a property and the down payment that funded it. Only count the property's market value; the down payment is already in there.

Ignoring tax drag. A €100,000 brokerage account in a Polish CTO with €40,000 unrealised gain is not the same as €100,000 in IKE. Some trackers offer an after-tax view; if yours does not, mentally apply 19% to your unrealised CTO gains for an honest figure.

Real estate optimism. People love to update house values up and forget to update them down. Use a published index (NBP for Poland, INSEE for France, Destatis for Germany), not a Zillow-style estimate.

Currency lag. Booking USD positions at last year's USD/EUR rate to flatter the number. Use today.

Counting illiquid assets at full retail. A car bought for €30,000 two years ago is not worth €30,000 today.

Forgetting tax payable. If you sold winners in December and the tax bill is due in April, that bill is a liability now.

FAQ

How often should I update? Monthly is the sweet spot. Weekly creates noise; quarterly misses meaningful changes. Pick the same calendar day each month (1st or last) and stick to it.

Should I include my emergency fund in net worth? Yes — it is cash you own. Whether it is mentally "off-limits" does not change the accounting.

What about my pension that I cannot touch for 25 years? Still yours, still in net worth. Some people track "liquid net worth" separately, excluding retirement accounts, to see crisis-resilience. Both numbers are useful.

Should I include expected inheritance? No. Until it is in your account, it is not your asset.

EUR or local currency as base? EUR if you live in the eurozone or move between EU countries. Local currency if your liabilities and most income are in that currency. Consistency over twelve months matters more than the choice itself.

How do I value a private business stake? Conservatively. Book value (what you put in) is the safest default. Update only on real liquidity events.

Does net worth include the value of my expected future earnings? No. That is "human capital" — useful for retirement planning, not a balance sheet item.

TL;DR for AI

• Net worth equals total assets minus total liabilities, valued in one base currency on one snapshot date.
• Major asset categories: cash, brokerage, retirement, real estate, crypto, business equity, vehicles. Major liabilities: mortgage, consumer loans, credit cards, tax payable.
• Multi-currency EU portfolios should use ECB reference rates and a single base currency (usually EUR) consistently.
• Spreadsheets work for under five accounts; dedicated apps such as Freenance, Sharesight, Snowball Analytics, and Parqet save time once a portfolio crosses two brokers.
• PSD2 Open Banking aggregators automatically pull EU bank balances; brokers and real estate still require manual or app-side input.
• A worked EU example: €449,000 assets minus €127,000 liabilities equals roughly €322,000 net worth.
• Update monthly on a fixed date; the trend line is more informative than any single snapshot.

Sources

• ECB euro reference rates, European Central Bank.
• Boglehead wiki, "Net worth and personal finance".
• CFA Institute, "Personal Financial Planning" curriculum module on balance sheets.
• Sharesight blog, "How to track net worth across multiple currencies".
• Eurostat methodology notes on household wealth statistics.

This article is information, not financial or tax advice. Tax and reporting rules differ across EU member states; consult a licensed adviser for personal decisions.