What to Include in a Service Contract (Whatever You Sell)

Adapted from the October 2026 issue of The Journey.

Most people think of a contract as protection for the day something goes wrong. It is that. It also does a job you’ll need far more often, which is holding the details in writing. Six weeks from now, when you and your client remember the same conversation two different ways, the contract is the only record either of you has.

So what should a service contract include? At a minimum: exactly what you’re delivering, what it costs and when each payment is due, what happens if the date moves, cancellation terms for both sides, who owns the work, what you need from the client (with deadlines), and how changes get handled. Those seven cover most of the disputes service businesses run into. The rest of this post goes through each one.

A quick note before we start: we’re not lawyers, and this isn’t legal advice. It’s a checklist to bring to one.

Will a longer contract scare clients off?

Plenty of owners keep their contracts short and vague, worried that detail will scare someone off. It tends to work the other way around.

Vague terms leave a client guessing about what they’re getting and what it’ll cost, and guessing is what makes people uneasy. When someone reads a clear agreement, they see that you’ve done this before and that you’ve thought about their side of it too. Don’t be afraid of a longer contract if every line is doing something.

The seven things that belong in yours

1. What you’re delivering, in specifics

“Photography services” isn’t a scope. “Six hours of coverage, one photographer, 400 edited images delivered within 30 days” is. Write the deliverable so that someone outside your business could check whether it was met.

Then write down the things people commonly assume are included and aren’t. For a wedding photographer that might be a second shooter, an engagement session, printed albums, RAW files, drone shots, or same-day previews. That second list is shorter to write and prevents more problems than almost anything else in the document.

2. What it costs, and when each piece is due

Total price, deposit, balance, and the date or trigger for each payment. “Balance due 14 days before the event” is specific. “Balance due before the event” invites a payment at 11 p.m. the night before.

Here’s one way to lay it out, using the $3,200 total and $800 retainer from the sample wedding photography agreement in the issue (the later dates are just an illustration):

3. What happens if the date moves

Rescheduling is the most common thing that happens to a booked project, and the thing contracts most often don’t mention. Say how much notice you need, whether the deposit transfers, how many times a date can move, and how long you’ll hold the money before it’s forfeited.

If you’ve ever had a client move a date three times in one season, you already know why this one matters.

4. Cancellation, in both directions

Theirs and yours. What’s refundable, what isn’t, and how much notice is required.

Write the clause covering your cancellation too. Owners skip it because they don’t plan to cancel, but illness and emergencies happen to everyone. Saying you’ll refund in full and help find a replacement costs you nothing to write, and it shows the client you’ve thought about their risk as well as yours.

5. Who owns the work and how it can be used

This applies to anyone producing something: images, copy, designs, recordings, code, strategy documents. Say who holds the rights, what the client may do with the finished work, and whether you can show it in your portfolio.

Portfolio permission is the clause most often forgotten and most often needed. It’s a lot easier to ask on day one than after the project, when you’ve just made something you’d love to share.

6. What you need from the client

Almost nobody includes this, and it’s the one that saves projects.

Your work depends on things only the client can provide: content, access, approvals, decisions, a signed release, a key to the building. List them, put deadlines on the important ones, and say what happens to the timeline when they arrive late. Without it, every client delay quietly becomes your emergency.

A web designer, for example, might write that the client supplies final page copy and photos 10 business days before the launch date, and that late content moves the launch date by the same number of days. One sentence, and a very common argument never happens.

7. How changes get handled

Spell out the process: requests in writing, priced before the work starts, timeline adjusted if needed. One paragraph here does more to prevent scope creep than any conversation you’ll have after the project starts, mostly because by then the conversation feels personal and the paragraph doesn’t.

A few rules about the signing itself

Sign before the work starts and before you hold the date. A held date with no signature is an unpaid option on your calendar.

Send the contract with the quote and invoice, not in a separate email chain. When they arrive together, the client moves through one decision, and you stop chasing signatures separately from payments. In 17hats this is the 3-in-1 document, and the new Quote Selections Token can pull the client’s chosen packages and add-ons straight into the contract, so the scope section writes itself from what they actually picked.

Never revise a signed contract by sending a new copy and asking the client to ignore the old one. Issue the change in writing, have both parties acknowledge it, and keep it with the original.

Have a lawyer in your state read your template once. You’re paying for an hour of review, not a custom draft, and you’ll find out which clauses don’t hold up where you do business. Rules on things like non-refundable deposits vary more than people expect.

If you only fix one thing, fix number six

If your agreement is missing anything on this list, add the client-responsibilities section first. Write down the three things clients most often give you late, put them in the contract with deadlines, and state what happens to the schedule when those deadlines are missed.

It’s the fastest fix available, and it protects the one thing you can’t get back, which is your time.

FAQ

What should a service contract include?
Seven things: a specific scope (plus what’s not included), pricing with payment due dates, rescheduling terms, cancellation terms for both sides, ownership and usage rights, client responsibilities with deadlines, and a change-request process.

Is a longer contract bad for conversions?
Not in our experience. Clear detail tends to reassure clients because it answers questions before they have to ask. Length that’s just legalese is another matter, so write it in plain language.

Do I need a lawyer to write my contract?
You don’t need one to draft it, but it’s worth paying a lawyer in your state to review your template once. That’s usually about an hour of their time.

How do I change a contract after it’s signed?
Put the change in writing, have both of you acknowledge it, and file it with the original. Don’t send a replacement contract and ask the client to disregard the first one.

This guide first appeared in the October 2026 issue of The Journey, alongside a sample wedding photography agreement and the rest of the month’s features on getting from inquiry to invoice. If you’d like a head start, the 17hats Marketplace has contract templates built for specific kinds of businesses.