Free Interior Design Letter of Agreement Template

For smaller engagements, a full contract can feel like overkill — but working with nothing in writing is a mistake at any size. This free interior design letter of agreement template is the middle path: a single, friendly page that sets out scope, fee, payment and key terms clearly enough to protect both sides, without the length or formality of a full contract. It is the fastest way to make a small project feel professional and keep everyone on the same page.

Below is what the letter covers, when to use it instead of a full contract, and how it fits into a tidy onboarding flow alongside your questionnaire and proposal.

What's inside the letter of agreement

The template keeps things deliberately simple — everything essential, nothing intimidating:

• The parties and project — who is involved and the space being worked on.
• Scope — a short, clear description of what you will deliver.
• Fee and payment — the amount, any deposit, and when payment is due.
• Expenses and purchases — how any furnishings or materials are handled.
• Timeline — an indicative start and completion.
• Simple terms — revisions, cancellation, and your right to photograph the result.
• Signatures — a clear acceptance line for both parties.

Letter of agreement vs full contract — which to use

The two documents do the same job — set expectations and protect both parties — at different scales. A letter of agreement is ideal for low-risk, smaller engagements: a styling project, a single-room refresh, a consultation package, or a colour and materials brief. It reads as approachable, signs fast, and rarely scares a client.

A full contract is the right call when the project is larger or carries more risk — renovations, procurement-heavy jobs, anything with significant money, multiple trades, or a long timeline. The extra clauses (detailed procurement, liability, termination, phased payments) exist precisely because those projects have more that can go wrong.

A simple rule of thumb: if losing the fee or facing a dispute would genuinely hurt, use the full contract; if the engagement is small and self-contained, the letter of agreement is enough.

What a letter of agreement should cover

Even on one page, do not skip these essentials:

• A clear scope. One or two sentences that define exactly what is and isn't included. Vagueness here is where small jobs quietly balloon.
• Fee and payment timing. State the amount, whether a deposit is required, and when the balance is due. Asking for a deposit is normal and professional.
• Photography rights. Reserve the right to photograph and publish the finished space — even small projects make great portfolio pieces.
• A signature line. An agreement only protects you once both parties have accepted it in writing, even by email.

When to upgrade to a full contract

Start a project on a letter of agreement and find the scope growing — more rooms, procurement, a builder in the mix? That is the signal to move to a full contract for the expanded work. There is nothing awkward about it: "this has grown into a bigger project, so let's put a proper agreement in place" reads as professional, not pushy.

How to use it

Fill in the scope, fee and dates, send it after your proposal is accepted, and ask the client to reply with their acceptance or a signature before you begin. Keep a copy. As with any agreement, this template is a practical starting point rather than legal advice — have it reviewed by a qualified professional in your jurisdiction if you are unsure. Download the letter of agreement below.

This template is provided for general guidance only and does not constitute legal advice. Have your agreements reviewed by a qualified professional in your jurisdiction.