Advertising Services Contract: Documents You Need

The campaign has already aired, the money is gone — and your accountant asks: where is the advertising services contract, the invoice and the acceptance act? And it turns out there is nothing to back the expense with: just a bank statement with a vague payment reference.

This is the most common reason small businesses are afraid to buy advertising outside an agency: it is unclear which advertising documents they will receive and whether their own bookkeeping will accept them. Let's go through it in order — which papers you need, what they look like in 2026, when accepted public terms are enough instead of a signed paper contract, and what to check before you pay.

Why advertising documents matter at all

Three different reasons, and they should not be confused:

1. Tax and bookkeeping. Primary documents prove the expense is real and related to your business activity.
2. Proof the service was delivered. If a screen was down for a week and the money is already paid, you can only argue your case with documents and a report in hand.
3. Internal control. Once you run more than one campaign, without invoices and acts you stop understanding how much the channel actually cost you.

Even if you are a sole trader on a simplified tax scheme where expenses do not affect your tax, points 2 and 3 do not go away.

The four documents that close out a campaign

The first three are accounting documents. The fourth is not a primary document, but it is what gives the act any meaning: without a report, an act is just a signature under the phrase "services rendered in full".

Paper contract or public offer: both are valid

This is where business owners have the most doubts. In short:

Option 1 — a bilateral contract. The classic: a framework advertising services contract, an annex with the specification (where, which format, which period), signatures and stamps. You need this if you have tender procedures, internal procurement rules, or you are an LLC with strict document flow.

Option 2 — a public contract (offer). The provider publishes its terms on the website, you place an order and pay — and by doing so you accept those terms. The public contract mechanism is explicitly provided for by the Civil Code and is used everywhere, from hosting to advertising. No separate signed paper is required: the contract consists of the terms plus proof of your acceptance (the order, the payment, the confirmation email).

What to keep under Option 2 so the document actually holds up:

• a PDF or screenshot of the terms page as of the payment date (terms can change);
• the order confirmation email;
• the payment document showing the payment reference;
• the invoice and act — on request.

What an advertising services contract must cover: a checklist

Whatever the form, make sure these points are settled. Any one that is missing is where a future dispute will start.

• Subject matter. Not "advertising services" in the abstract, but: which screens, which format, creative length, display frequency, placement period.
• Price and payment terms. Amount, currency, whether taxes are included, prepayment or postpayment.
• Deadlines. Start date, duration, and what happens if you are late on your side (creative delivered too late).
• Creative requirements and moderation. File formats, submission deadline, the provider's right to reject a layout.
• Liability for the content of the ad. This is almost always the advertiser — you. Check that you hold the rights to the music, photos and fonts in your video, and that the ad does not fall under legal restrictions.
• Reporting. In what form and when you will receive proof of display.
• Stopping a campaign and refunds. What happens if you change your mind before the start, and what happens mid-period.
• Force majeure and technical downtime. In Ukraine this is not a formality: power outages, air raid alerts, equipment failure. It must be clear whether lost airtime is compensated.
• Dispute resolution and the parties' contact details.

If buying advertising is new territory for you, start with the overall sequence — we covered it separately in our guide on how to order advertising in Ukraine.

Invoices and bank payments for advertising

An invoice is not a contract, it is a payment instruction. It should contain: number and date, the provider's details (company or sole trader name, tax ID, IBAN), the payer's details, service name, period, amount, and the basis (contract number or a reference to the terms).

You can pay for advertising two ways:

• by card through a payment service — fast, the campaign starts almost immediately;
• by bank transfer to an IBAN from your business account — what accounting departments like most, because the expense is immediately clean and visible in the statement.

Two details that cause the most trouble:

1. The payment reference. Write it in full: "Payment for advertising and information services under invoice No. ___ dated ___". A reference that just says "transfer" or "for services" turns your bank statement into an unsupported expense.
2. The start date on bank transfers. The campaign starts not when you click "pay", but when the funds are credited to the provider. A banking day can sit in between — plan your start with some slack.

The acceptance act and the placement report

The act is signed once the period has run. It is usually issued by the provider at the client's request — and with many services it genuinely is a request, not an automatic email. Ask for the act in advance, not on the 30th while closing the month.

The placement report is how you verify the act before signing. For digital screens in venues it includes: the list of locations, the period, the number of times the creative aired, and — if the layout had a QR code — the number of scans. We explained how to read such a report and which numbers are normal in how to read a campaign report.

The rule is simple: report first, signature second. Never the other way round.

Advertising as a business expense: what to know

The general logic (always confirm the specifics with your own accountant — tax schemes differ, and the details decide the outcome):

• Sole trader on the simplified scheme (groups 2–3). Tax is paid on income; expenses do not reduce the base. You need advertising documents not for the tax office but for yourself: budget control, disputes with the provider, proof for an investor or franchisor.
• Sole traders and companies on the general scheme. Advertising expenses reduce the taxable base — but only with primary documents proving the expense is connected to your business activity. Here the invoice, act and report really are critical.
• VAT. The right to input VAT credit only arises if the provider is a VAT payer and issues the corresponding documents. You can see this from the details on the invoice; check before paying, not after.
• Currency and price. If the price is quoted in hryvnia and "includes all taxes", that exact amount is what goes into your books, with no surprise top-ups.

Checklist before you pay

1. You found and read the terms (contract or offer) — and saved a copy as of the payment date.
2. You verified the subject matter: specific locations, format, creative length, period.
3. You saw the final price before booking, with no "we will confirm in a proposal".
4. You received an invoice with complete details.
5. You worded the payment reference correctly.
6. You know the actual start date of the campaign.
7. You know what form the placement report will take.
8. You agreed on the acceptance act in advance.
9. You read the refund and technical downtime terms.

How this works at HostAd

HostAd is a marketplace of indoor screens: right now the system has 27 screens in craft coffee shops and bars across Kyiv. The paperwork side is built so that a small business does not spend a week aligning documents:

• The Terms of Use are the contract. Placing an order and paying constitutes acceptance, so the contract is concluded without exchanging signed scans. The text is open: you can read and save it before you pay anything.
• The owner's price is visible on the map before booking. The base rate is UAH 50 per second of airtime per month: a 10-second creative on one screen comes to UAH 500 per month, 15 seconds to UAH 750. A −50% discount applies for the current month. No 15–30% agency mark-ups of the kind usually buried inside a "commercial proposal". For detailed budget maths, see how much screen advertising costs in Kyiv.
• Payment by card or bank transfer to an IBAN. The second option is exactly what you need to pay for advertising from a business account. Prices are in hryvnia and include taxes.
• Invoice and acceptance act on request. This is set out in the terms: if your accounting needs the full package, you get it.
• Monthly booking. You do not need a quarterly or annual contract to test the channel: take one screen for one month — and the documents for that amount are just as complete as for a large budget.
• A report with air counts and QR scans. Something real to verify the act against before you sign it.

The creative appears on screen on a loop — roughly every 2 minutes — so a café guest sees it several times per visit. The audience at these locations is students, freelancers and local residents within a few blocks.

In short

Advertising documents are not bureaucracy; they are how you turn spending into a managed asset. The minimum: saved contract terms, an invoice with a correct payment reference, a placement report, and a service acceptance act. A public offer is no worse than a paper contract in this respect — as long as you saved its text and have proof of payment.

Want to see the actual locations, prices and terms before signing anything? Open the HostAd screen map — every venue's price is public, and booking starts from a single month.