TL;DR
Two providers in this directory publish a postal address for cash deposits in 2026:
How to do it:
- Pick currency (EUR or USD typically accepted; check the provider’s payment page).
- Wrap cash in opaque paper inside an unmarked envelope.
- Include a note with your account ID or order reference.
- Send via standard mail (NOT registered, NOT signed-for — these create a paper trail).
- Wait 5-15 business days for the deposit to clear.
Loss risk: real but typically <1% in stable jurisdictions. Treat sums under €100 as the comfortable threshold for first-time experiments.
Why cash by mail
Cash is the most privacy-preserving payment method available because it leaves no electronic record at all:
- No bank transfer with sender/recipient details.
- No card processor with merchant category data.
- No crypto on-chain trace (even Monero leaves some on-chain activity).
- No exchange-side KYC paper trail.
The only people who know about the transaction are: you, your local post office, the destination post office, and the recipient. None of them have a strong reason to keep records.
For operators where the threat model includes blockchain analysis or financial-system surveillance, cash is materially stronger than crypto.
Which providers accept it
In this directory:
- Njalla — explicitly accepted; deposit-balance model means a single cash deposit can fund years of domain renewals + VPS payments. Postal address listed on njal.la’s payment page.
- FlokiNET — accepted; postal address on the FlokiNET payment page.
Several other privacy-focused providers will accept cash on request even if it’s not advertised. Email the provider before sending if their public payment page doesn’t mention cash.
Operational guide
1. Get the cash
- Withdraw from an ATM you don’t normally use, ideally one not associated with your home neighborhood.
- Use small denominations (€20-€50 notes) — easier to count, lower per-bill loss risk if mishandled.
- Avoid CHF or USD if you’re in EUR territory unless the provider explicitly accepts those currencies.
2. Package
- Use opaque paper (folded white printer paper works). Don’t let cash be visible if the envelope is held to light.
- Wrap the paper-wrapped cash inside a standard unmarked envelope.
- Address the envelope to the provider’s published postal address.
- Do not write “cash” or the amount on the outside.
- Include a small note inside with your account ID or order reference (e.g. “Account #12345, deposit €100”).
- For Njalla specifically, the note can include the email your account is registered under.
3. Send
- Drop in a standard mailbox.
- Do not register the letter. Registered / signed-for mail creates a paper trail at both ends with sender and recipient names.
- Do not include a return address unless your country’s postal regulations require it (e.g. France generally does; UK does not). If required, use a poste-restante or trusted alias.
- Use standard postage rate. Tracking and signature confirmation defeat the purpose.
4. Wait
- International mail: 5-15 business days typical for EU → IS or EU → SE.
- The provider receives and processes the deposit; they credit your balance.
- Most providers send a confirmation email when funds are credited.
5. Verify
- Log into your provider account; confirm balance reflects the deposit.
- If after 3 weeks no confirmation arrives, email the provider’s support address with the rough date you mailed and the account ID. They can sometimes manually credit if the envelope arrived but failed to be processed.
Risks
Loss in mail: real but rare in stable jurisdictions. EU-internal and Iceland-bound mail loss rates are <1% for standard envelopes. Higher if you’re sending from countries with worse postal infrastructure. Mitigation: send small amounts; treat as a deposit you could afford to lose.
Theft at the destination: providers’ postal addresses are publicly known. Mail volume is high enough that interception is not casual, but a well-resourced adversary watching a known offshore-host PO box could intercept. Mitigation: this is a real but low-probability risk; for high-stakes use, supplement with crypto rather than cash-only.
Customs declaration: you generally don’t need to declare cash sent in standard mail under most postal regimes (versus carried physically across borders, where declaration thresholds apply: €10,000 EU, $10,000 US, etc.). Check your country’s postal rules if uncertain.
Counterfeit: providers reject obviously-counterfeit notes. Use cash from a normal ATM source.
Combining with other methods
Most operators don’t use cash exclusively. Common patterns:
- First payment in cash: bootstrap the account anonymously without ever giving a card / crypto wallet that links to identity.
- Top-ups in Monero: faster ongoing payments after the initial cash deposit.
- Cash for “burner” deposits: when you want to fund an account that has no link to your other identities.
Country-specific notes
- From the US: international cash mailing is legal but US Customs Form 4790 is technically required for amounts over $10,000. Below that, no declaration. Use small amounts.
- From the EU: intra-Schengen mail moves freely; no declarations.
- From the UK: standard postal rules; small amounts uncontroversial.