Best offer on record: Free Mollie account / pay-as-you-go free tier (no monthly fees, free test API keys). 5 verified findings, checked 2026-10-22.
Offers
Free Mollie account / pay-as-you-go free tier (no monthly fees, free test API keys) high confidence
Mollie's base account has no monthly fees, no lock-in contracts, and fees only on successful live transactions (e.g. SEPA Instant bank transfer €0.25 flat, SEPA Direct Debit €0.35 flat, iDEAL/Wero NL €0.32, EEA consumer card 1.80% + €0.25). Checkout, Payment Links, Invoicing and Recurring are included at no extra cost. In-person POS 'Pay as you go' plan is €0/month (1.20% domestic consumer card rate, max 1 terminal, PAX terminals not supported; unlimited Tap apps free; Tap to Pay on iPhone/Android costs no terminal — free app). Test API keys are free and test payments are simulated, so no transaction fees in test. The first 5 payouts/month are free for accounts with annual volume under €500,000; additional payouts €0.25 each.
Eligibility
Any registered business (Mollie signs up registered businesses only — a registered business with a live website, bank account + verification payment, and ID of legal representatives; review up to 10 business days). No credit card is required at signup. Not available to unincorporated students as individuals. Region-limited: Mollie serves businesses headquartered in Europe/UK; the account itself is free everywhere Mollie operates.
How to claim
1) Sign up at mollie.com (business details, bank account, ID; no credit card). 2) Account goes live (up to 10 business days review). 3) Generate free test API keys from the Dashboard/API Keys page and build/integrate in test mode with zero fees. 4) For live: just start processing — pay only per-transaction fees, no monthly minimums.
Expiry
Standing program; no stated end date. Terms 'subject to change' at Mollie's discretion.
Gotchas
Test mode is not live revenue: only EUR is supported in test mode, all API endpoints related to business operations (e.g. payouts, refund management edge cases) do not support test mode, and pending-state test payment methods don't exist in live. Demo accounts (isolated explore accounts) are early access — you must contact a Mollie representative. Live transaction fees still apply even on the free tier (1.80–3.25% + €0.25 for cards); commercial/non-EEA cards are the most expensive. POS hardware is not free: Tap terminal €95 one-off, mobile/fixed €350. Payout fees (non-EUR payout 1% of amount) apply below the €500k annual volume threshold. No 'free tier' for students/individuals — a registered business is mandatory.
Free test-mode developer sandbox (API keys, no transaction fees) high confidence
Mollie's test environment is fully isolated from live data; the API behaves identically, webhooks included. Test API keys are free with any Mollie account; no card or bank verification is needed to create test keys. Test card numbers (Visa/Mastercard/Amex, any expiry/CVV) are documented. No fees are charged for test payments because they create no real transactions.
Eligibility
Any Mollie account holder (i.e. a registered European/UK business; see free-tier finding). No credit card required. No cost, no limits on test requests stated in the docs.
How to claim
1) Register a Mollie account. 2) In Dashboard → API keys, create a Test API key (free). 3) Call any payments API endpoint in test mode; simulate card/bank payments with the documented test card numbers. 4) To switch to live, create a Live API key and/or add the testmode parameter — no migration needed since API behavior is identical.
Expiry
Permanent capability; no stated expiry.
Gotchas
EUR-only in test mode. Endpoints for business-operations resources (accounts, balances, etc.) do not support test mode. Recurring test payments have no checkout URL — you force final state via changePaymentState. Test keys are separate from live keys; webhooks fired in test come from the test environment. This is a sandbox, not a 'free forever live account'.
Mollie Startup Program — waived fees up to €1,000,000 in payment processing high confidence
Three tiers of waived Mollie transaction fees, scaled by total funding raised: (1) startups with up to €200k in funding → €75,000 of waived fees; (2) €200k–€2m in funding → €500,000 of waived fees; (3) €2m+ in funding → €1,000,000 of waived fees (UK site mirrors the same tiers in £: £75k/£500k/£1m). Includes priority support (skip-the-queue human responses), no lock-in contracts, and access to a curated founder community with events across Europe. Waiver is volume-based: it applies to your next N euros of processing volume until exhausted.
Eligibility
Pre-seed to Series B startup; headquartered in Europe/UK; must be new to Mollie (existing customers not eligible). Funding status is verified by Mollie with your VC or via public data. Program explicitly targets VC-backed companies — non-VC-backed startups are told to contact sales instead. No .edu/student angle; a company (not an individual) must apply. No credit card required to apply.
How to claim
1) Confirm eligibility (pre-seed–Series B, Europe/UK HQ, new to Mollie). 2) Fill out the short application form (≈3 minutes) on mollie.com/solutions/payments-for-startups — an email with next steps arrives almost instantly. 3) Mollie verifies your funding (VC contact or public data). 4) On approval, the fee waiver and priority support are automatically applied to your new Mollie account.
Expiry
No explicit end date or time limit stated on the official page; the waiver is exhausted by volume (until N processed). Offer 'subject to change, withdrawal or cancellation at any time' per Mollie's campaign terms language.
Gotchas
Only the waiver for your funding tier applies — a bootstrap/underfunded startup gets the small €75k tier, not €1M (the headline number misleads). The waiver covers Mollie transaction fees only; 'additional costs directly imposed by a particular payment method may apply' (per Mollie's campaign T&Cs, chargebacks on card/SEPA DD/Klarna/SOFORT and refunds are excluded from such waivers). Refunds can count against waived volume in Mollie's promotion terms. 'New to Mollie' + 'terminated account within previous 6 months' excludes churned accounts. Not available to US-headquartered startups. Existing Mollie customers can't join.
€1,000 free processing volume promo for new Mollie customers outside BE/NL high confidence
A standard new-customer promotion (separate from the Startup Program): EUR 1,000.00 of processing volume free of Mollie transaction fees ('Mollie Promotion Amount'). Applies when you register a new Mollie account and your registered business address is outside Belgium and the Netherlands. You must process your first transaction within 30 days of valid registration. The promo remains valid until fully exhausted, but expires automatically 365 days after account registration. One promotion per account, not transferable; refunds count as processing volume against the promo; chargebacks (cards, SEPA DD, Klarna, SOFORT) and refunds fall outside the promo and are charged at applicable rates; volume beyond €1,000 is charged at your dashboard rate (or basic public website rate).
Eligibility
New Mollie accounts only; registered business address outside Belgium and the Netherlands (Mollie's home markets are excluded — presumably served by different local offers). No credit card required. No student/startup-specific eligibility — open to any new customer in eligible regions.
How to claim
1) Register a new Mollie account with a business address outside BE/NL. 2) Process your first transaction within 30 days. 3) Your first €1,000 of successful processing volume is automatically free of Mollie transaction fees until the amount is exhausted or 365 days pass.
Expiry
Per-account expiry: promo lapses 365 days after valid registration even if unused; first transaction within 30 days. Campaign itself has no stated calendar end date and may be withdrawn 'at any time' — the T&C page was live when read today, but the page carries no start/end date, so treat current availability as unconfirmed.
Gotchas
It is a €1,000 volume cap, not a cash credit — with typical rates (~2% + €0.25 per card) the real savings are only ~€20–25, far smaller than it sounds. Excludes Mollie's two home markets (BE/NL). Refunds can be counted as volume against the promo (Mollie's T&Cs wording). Not combinable with other offers ('not valid with any other offer').
No student/education program or education license found medium confidence
Mollie has no student, academic, or education license offer. mollie.com/education returns 404; no education program appears on the official pricing page, the Startup Program page, the developer docs, or in 2025–2026 search coverage of Mollie programs. Mollie's free offers are the free base account/test sandbox, the Startup Program (VC-funded startups), and the €1,000 new-customer promo — none target students, schools, or educational institutions. Individuals (including students without a registered business) cannot open a Mollie account at all, so a 'free dev tier for students' does not exist.
Eligibility
n/a — no offer. Developers who are students can only use Mollie's free test sandbox through a registered European/UK business (see free-tier finding).
How to claim
n/a — nothing to claim; if you need a free sandbox for student projects, use Mollie's test mode via a business account or consider a competitor with a student/dev offer.
No Mollie free offer was sunset or removed in 2025–2026 that I could verify. Changes noted: (1) The Mollie Startup Program tiers currently read €75k/€500k/€1M waived fees — a third-party aggregator (StartupPerks, checked ~2026-08-27) notes a "measured 5x expansion" added on 2026-08-27, implying the tiers were previously much smaller (pre-expansion amounts not stated on the official page, so treat as unconfirmed). (2) The €1,000 new-customer promo exists in Mollie's campaign T&Cs with no stated end date; whether it is still being actively issued to new signups is unconfirmed (page live today, no calendar dates). (3) Mollie's general campaign terms state offers are "subject to change, withdrawal or cancellation at any time". No education/student program existed in 2025–2026 to sunset. Key facts verified today on official pages: no monthly fees / no lock-in, 35+ payment methods included, POS "Pay as you go" at €0/month, and test API keys free with no card required.