Can I keep my German DKB account as a long-term US resident?

DKB has historically been more accommodating than other German direct banks but has tightened policies. They serve EU residents reliably and can serve non-EU residents on a case-by-case basis. Some accounts have been closed unilaterally. The safest German banks for long-term US residents are Sparkasse and Volksbank branches in your former hometown — they typically allow non-resident accounts with annual fees of EUR 60–120. Update your address with them; do not let them mark the account as inactive.

Is Wise safe for large transfers — say €100,000 for a US property purchase?

Yes, with caveats. Wise is regulated by the FCA in the UK, FinCEN in the US, and BaFin in Germany; client funds are segregated, and the company has cleared trillions in lifetime volume without major incidents. For very large one-off transfers, the practical issues are 1) daily transfer limits (sometimes capped, may need a phone confirmation), 2) anti-money-laundering documentation requirements (proof of source of funds for amounts above ~$50,000), and 3) speed — large EUR-to-USD transfers typically settle in 1–2 business days, not minutes. For a closing-day wire to a title company, talk to your bank about a SWIFT wire as backup; some title companies do not accept Wise as the source.

Will my German bank close my account when they learn I'm a US person?

Most won't close it but may restrict your investment options — German banks must comply with FATCA reporting and PRIIPs disclosure rules that make selling US-domiciled investments to US persons in Germany impractical. You may lose access to ETF/fund trading, but everyday banking continues. A few smaller German banks have policies of declining US persons entirely, in which case you will receive a closure notice with 90 days to move funds. Read your account terms when you become a US person and proactively ask your bank about FATCA accommodations.

Should I keep euros or convert to dollars after moving to the US?

Match currency to use case. Money you will spend in Germany (visits, family obligations, future return) → keep in EUR. Money you will spend in the US (rent, salary, daily life) → convert to USD. A 6-month emergency fund in your living-expense currency is sensible. Holding pure-USD or pure-EUR investments after a permanent move concentrates currency risk; for retirement assets, USD-denominated diversified funds are typically right for US-resident long-term residents.

How much can I bring to the US in cash without declaring?

Up to $10,000 per person crossing the border without declaration. Above $10,000 (per person, per family, per group traveling together — the threshold is aggregated), you must file CBP Form 6059B / FinCEN 105 on entry. This is reporting, not taxation — you do not lose any money to fees. Failing to declare amounts above $10,000 is a serious customs violation: confiscation of the cash plus civil and criminal penalties. There is no upper limit if you declare. For amounts you actually want to move long-term, electronic transfer through Wise or a SWIFT wire is cheaper, safer, and creates a paper trail.

Cross-Atlantic Banking and Money Transfers (Germany ↔ USA)

Opening a US bank account as a German

You need at minimum a US-issued ID (passport works), a US address, and either an SSN or an ITIN (Individual Taxpayer Identification Number — apply via IRS Form W-7, takes 6–10 weeks). Some banks will open accounts on a passport alone for non-resident foreign nationals; HSBC Premier and Citi (their international tier) are the most reliable. For US residents arriving on a visa, a Bank of America, Chase, Wells Fargo, or Capital One walk-in branch visit with passport + visa + US lease will usually open a basic checking account in 30 minutes. Online-only options like Chime and Ally generally require an SSN. Once open, you will need a routing number (US account ID) and account number for direct deposit, plus a debit card. Building US credit is a separate task — apply for a secured credit card (Discover It Secured, Capital One Platinum Secured) the same day, and after 6–12 months of on-time use you qualify for normal cards.

Keeping or closing your German accounts

Most German banks technically allow non-resident customers, but practice varies. Sparkassen and Volksbanken are typically the most accommodating to long-term expats. Direct banks (DKB, Comdirect, ING, Consorsbank) sometimes notify customers that they cannot serve non-EU residents and ask for closure — read your account terms. Reasons to keep at least one German account: receiving pension, rental income, family transfers, paying recurring euro bills, maintaining German insurance autopay. Reasons to close: account fees that no longer make sense, FATCA hassle (your German bank may surcharge or refuse to invest in US securities once you become a US person), or simply not needing it. If you keep an account, update your address — some German banks legally require this and will freeze accounts that look "stale." German banks must report account information to the IRS under FATCA if you are a US person; this is automatic and unavoidable.

Money transfer services that beat SWIFT

A standard SWIFT wire from a German bank to a US bank costs EUR 25–50 plus a 1–3% exchange-rate markup hidden in the FX conversion. For a EUR 5,000 transfer, that is EUR 75–200 in total cost. Modern alternatives slash this: Wise (formerly TransferWise) typically costs 0.4–0.6% all-in with mid-market exchange rate — about EUR 25 on a EUR 5,000 transfer. Revolut works similarly with a free tier monthly cap. For high-value transfers ($50,000+), CurrencyFair and OFX often beat Wise on rate. PayPal is fast but expensive — 4–5% all-in is typical, only worthwhile for small or urgent amounts. Crypto rails (USDC stablecoin via Coinbase or Kraken on both sides) move money in minutes for under 0.5%, but require comfort with the technology and tax-tracking implications. For pension or recurring rental income, set up a Wise multi-currency account that gives you a German IBAN AND a US routing/account number — money lands in EUR, you convert at your chosen moment, and withdraw in USD.

FATCA, FBAR, and what gets reported

If you are a US person (citizen, green card holder, or substantial-presence test resident), every German financial institution where you hold an account must report your account balance to the IRS annually under FATCA. There is no opt-out. Refusing to provide US tax information when the bank asks results in account closure or punitive withholding. Separately, you must self-report: FBAR (FinCEN 114) for accounts aggregating over $10,000 at any point during the year, and Form 8938 for accounts above the higher specified-foreign-financial-assets thresholds. Failing to file is severely penalized — willful FBAR violations start at $10,000 per account per year and can reach $100,000+ in flagrant cases. The flip side: complying is mostly an administrative paper exercise. Tax software like TurboTax has FBAR add-ons; H&R Block Expat does it natively. Whether you owe additional tax is a separate question — usually no, because of treaty provisions and foreign tax credits.

Currency exposure and timing

If you hold euros and live in dollars (or vice versa), exchange-rate moves are a real risk. EUR/USD has moved 20%+ in single years over the past decade. Three practical approaches: 1) match currencies to obligations — keep emergency funds in your living-expense currency, 2) convert periodically rather than all at once (dollar-cost averaging on FX), 3) for predictable future obligations (German tuition, US down payment), use a forward contract through CurrencyFair or OFX to lock in today's rate for a future delivery. For most cross-Atlantic German-US individuals, periodic conversions through Wise on payday or quarterly is the right balance — sophisticated FX hedging is overkill below $500,000 of exposure. Avoid the temptation to time the rate; few professionals do this profitably and the spread you save by using Wise dwarfs the rate-timing edge most amateurs would capture.

Finding a German-affiliated US financial advisor

For amounts where DIY makes sense (under $250,000 in investable assets), Vanguard, Fidelity, or Charles Schwab USA accounts plus a target-date fund handle most needs adequately. For higher amounts, especially when both German and US tax considerations apply (German pension distributions, German real-estate income, US-resident heirs, exit-tax planning), a German-affiliated US financial advisor is worth the fee. Look for fiduciary CFPs (Certified Financial Planners) — required to act in your interest, paid by flat fee or assets-under-management percentage rather than commission. The Finance & Banking category on this directory filters German-affiliated advisors by city. For private banking tier ($1M+ liquid), HSBC Private Bank, Citi Private Bank, BNY Mellon, and Deutsche Bank Wealth Management USA are the heavy hitters with cross-border desks.