Invoicing tips for freelancers: get paid faster without a subscription tool
Nobody enjoys chasing money, and most of the chasing is avoidable. Invoices get paid late because the due date was vague, the bank details were wrong, the invoice went to the person who hired you rather than the one who pays, or it arrived in a format their system could not process. None of those are about the size of your business. This guide covers the details that move an invoice through someone else's payment process, and the archiving habits that make the next tax year uneventful.
Give the due date a real date
“Net 14” is jargon, and it puts the arithmetic on the reader. Print the actual calendar date the payment is due, and keep the net-days sentence underneath it if the contract refers to terms. An accounts-payable clerk scheduling twenty payments will key in what they can read without calculating.
Choose the term deliberately. In the EU, Directive 2011/7/EU sets a default payment period of 30 calendar days for business-to-business transactions, extendable to 60 by express agreement and beyond that only if it is not grossly unfair to the creditor. Fourteen days is a normal freelance term and well inside the default; asking for seven is fine for small amounts but expect pushback from larger companies whose payment runs are weekly or fortnightly.
Payment details that survive a copy-paste
Put the account name, IBAN and BIC/SWIFT on the invoice, spelled exactly as the bank has them, and give the payment reference its own line: “Please quote 2026-014 as the payment reference.” Banks match incoming transfers on the reference, and an unreferenced payment can sit unallocated for a week even after the money has arrived.
For cross-border payments inside SEPA, IBAN plus BIC is enough and the transfer is normally same-day. Outside SEPA, add your bank's full name and address and say who pays the correspondent-bank charges — the difference between SHA and OUR is often twenty to forty euros, and if you do not specify it you will be the one absorbing it.
Send the invoice to the address the client's finance team gave you, not only to your day-to-day contact, and attach the PDF rather than linking to it. Many corporate mail systems strip links or block the domains behind them, and an invoice that has to be downloaded is an invoice that waits for someone to be at their desk.
Late fees: what you can actually write
In the EU you do not need a clause to charge interest on a late commercial payment: the Late Payment Directive gives a statutory entitlement to interest at the European Central Bank reference rate plus at least eight percentage points, running from the day after the due date, plus a fixed EUR 40 as compensation for recovery costs. Writing the entitlement on the invoice simply makes it visible.
A sentence like “Interest at the statutory rate and a EUR 40 recovery charge apply from the day after the due date” is accurate in the EU, short, and not aggressive. If you prefer a contractual rate, agree it in the contract first; a percentage that appears for the first time on the invoice is not something the client accepted.
Outside the EU, check the local rule before you print anything. In the UK the Late Payment of Commercial Debts Act gives base rate plus eight percentage points and a fixed compensation that scales with the debt; in the US, late fees are contractual and several states cap them.
PDF, portal, or payment link
A PDF attachment is still the safest default: it is self-contained, it survives forwarding, it can be printed, and it does not stop working when a service shuts down. Payment links are convenient for small consumer-facing work, but they add a processor fee, they expire, and a corporate finance team cannot feed one into their approval workflow.
Larger clients increasingly have a supplier portal, and some countries now require their own e-invoicing channel. Ask during onboarding how invoices should arrive and which reference they need; ten minutes of that conversation saves a month of a rejected invoice sitting in someone's inbox.
Archiving, and the privacy of your client list
Keep every issued invoice as an unmodified PDF, named so that sorting the folder puts them in order — 2026-014-nordwood.pdf works well. Retention periods vary: six years in the UK, seven in Estonia, eight for accounting records in Germany since 2025, ten in several other Member States. Storing them longer than required costs nothing; being unable to produce one costs a deduction.
Your invoices contain other people's data: names, addresses, tax numbers, sometimes bank details. Under the GDPR that is personal data as soon as the client is a sole trader, and it deserves the same care as any other file you would not want indexed. A tool that keeps that data in your browser rather than on someone's server removes a whole category of question from your processing records.
Reuse rather than retype. Export a finished invoice as JSON, keep it next to the PDF, and import it the next time the same client needs billing — the seller block, the payment terms and the layout come back exactly as they were, and only the lines and the number change.
The takeaway
Print a real due date, put the payment reference on its own line, spell the IBAN and BIC the way the bank does, and send the PDF to the finance address rather than to your contact. Add one accurate sentence about statutory late-payment interest instead of inventing a percentage. Then archive each invoice as a PDF plus a JSON copy, and the next one takes two minutes instead of twenty.
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