ContractShield

Free freelance invoice template: the late-fee clause built in

template· Last updated 2026-10-17
The short version

A clean, professional invoice with an itemized table, a hard payment window — payment due within a stated number of days of the issue date — and the late-fee sentence already in the wording: overdue balances accrue 1.5% per month (18% APR), or the maximum rate permitted by applicable law, whichever is lower. Free to generate with a free account.

What the template carries

The invoice does one job: states what is owed, when it is owed, and what waiting costs. Every element serves that:

  • An itemized table — one row per deliverable with quantity and amount, and a total that adds itself from your line items.
  • A hard payment window — "payment due within [14] calendar days of the issue date." A number, not "upon receipt."
  • The late-fee sentence — 1.5% per month (18% APR), or the maximum rate permitted by applicable law, whichever is lower. The lower number always applies, so the clause never asks for more than the state allows.
  • Payment instructions — bank transfer, PayPal, or Stripe link, stated on the invoice so the client has no excuse for a missing routing number.
  • Optional notes — one line for context, which is all an invoice should carry.

How to use it

Open the document center and pick the invoice. Fill in your details and the bill-to, the invoice number and issue date, the payment window (14 days is the default we recommend), and your line items — one per row as description, quantity, amount. Add payment instructions, and the generator assembles the finished invoice with the payment window and the late-fee sentence already in place. Copy it into your email or invoicing tool and send.

Pair it with a contract that carries the same sentence. The invoice restates the terms; the signed agreement is what makes them enforceable.

Questions freelancers ask

What should a freelance invoice include?

Six things: your name and contact, the bill-to details, an invoice number and issue date, an itemized table (one row per deliverable, with quantities and amounts), a stated payment window — payment due within a stated number of days of the issue date — and your payment instructions. The late-fee sentence at the bottom completes it: overdue balances accrue a service charge of 1.5% per month (18% APR), or the maximum rate permitted by applicable law, whichever is lower.

Is the invoice template free?

Yes — the invoice generator is free with a free account (email or Google, no credit card). Fill in the line items and payment details, and the template assembles the invoice with the payment window and late-fee wording already in place.

Can I charge a late fee from the invoice alone?

The invoice restates the terms, but the contract is what binds. The late charge works best when the same sentence sits in the signed agreement — overdue balances at 1.5% per month, or the maximum rate permitted by applicable state law, whichever is lower. With "payment upon receipt" and no late-fee clause in the contract, waiting costs the client nothing, and the invoice note has nothing to attach to.

What if the client still doesn’t pay?

Work the sequence: friendly reminder, formal demand, final notice — then small claims court if the venue economics work. The free demand-letter generator writes all three stages with deliberately conservative wording, and each letter documents that the client was told, in writing, what they owed.

Generate the invoice

Free with a free account — email or Google, no credit card. Fill in the blanks, copy, send.

Open the generator →

Chasing one right now? The 3-stage demand-letter generator is free — reminder, formal demand, final notice, no account needed.

Demand letter tool →

And for the contract side: the service-agreement template carries the same payment window and late-fee wording, plus IP-on-payment and the revision cap.

Service agreement template →

This template is an informational document, not legal advice, and it creates no attorney–client relationship. Laws vary by state — have a licensed attorney review before signing, especially for high-value engagements.