Your supplier sent the invoice. Declarewise builds the declaration.
Declarewise reads GB supplier invoices and packing lists line by line, fills every field it can, and asks you only about the rest. You check it and key it into TSS, the government system for these declarations.
£20 a month, unlimited declarationsFair use applies
No card needed. Free for 21 days or 10 reads, whichever comes first.
Demo data: an invented supplier with real commodity codes.
One price, unlimited declarations
Why pay an agent £22 + VAT for every declaration?* Prepare unlimited declarations for only £20 a month. Fair use applies.
Declarewise builds each declaration from your supplier paperwork. You make the declaration in TSS yourself, with no outside agent to wait for.
| Task | An agent at £22 + VAT each | With Declarewise |
|---|---|---|
| Price | An agent at £22 + VAT each£22 + VAT for each declaration | With Declarewise£20 a month, unlimited declarations, plus VAT if it applies |
| Ten declarations in a month | An agent at £22 + VAT each£220 + VAT | With Declarewise£20 |
| A month with none | An agent at £22 + VAT eachNothing to pay | With Declarewise£20 |
| Who keys it into TSS | An agent at £22 + VAT eachThe agent | With DeclarewiseYou. Simply copy from Declarewise and paste into TSS |
Included for £20 a month
- Upload, or send paperwork in straight from Gmail
- Every invoice line read and laid out field by field, ready to key into TSS
- Catalogued codes and origins for each supplier and product
- A daily check of your catalogued codes against the Northern Ireland tariff
- A downloadable record for every consignment
How it works
Go from receiving paperwork to a TSS declaration in 4 simple steps. A consistent process, the same every time.
Send the paperwork in
Upload the supplier invoice and packing list, or send them in from Gmail. Declarewise reads them and builds the declaration line by line.
Answer what Declarewise couldn't settle
A missing country of origin or an unclear product gets a direct question. Everything Declarewise could read is already filled in. Answer once and our system catalogues the answer for next time.
Check and approve
Read the draft against the paperwork and press Approve declaration. Nothing is ready for TSS until someone does. You stay the importer.
Key the declaration into TSS
Declarewise lays the values out field by field in the order TSS asks for them, with a Copy button beside each. Paste them in, then download a record of the consignment for your files.
The second consignment is faster than the first
Every code you pick and every origin you confirm is catalogued for that supplier and product. Next time the same line comes through, Declarewise fills it and moves on. Your catalogued codes are checked every day against the Northern Ireland tariff, so you hear if one of them changes.
Where your paperwork goes
Your invoices are your business's records. Here is how Declarewise looks after them, and what stays in your hands.
- Where it is kept
- In a database in Ireland. Each company's documents and declarations are kept separate from every other company's.
- How your documents are read
- To read the text, Declarewise sends each document to Anthropic, the company behind the reading software, in the United States. Under Anthropic's business terms your documents are not used to train its models, and they are deleted within 30 days unless flagged for breaking its usage rules. The full detail is in the Privacy Policy.
- A record of every decision
- Each decision on a declaration is recorded with the name of the person who made it and the date, so you can always see who approved what.
- Who can change your numbers
- Only owners and admins on your account can change your company's EORI number (its customs ID) and its UKIMS number (the authorisation for goods staying in the UK).
- Does it work with the new TSS?
- Yes. TSS moved to its new platform on 20 October 2026. Declarewise lays the values out for you to key in, so it works with whichever TSS screen you're looking at.
- What stays with you
- Your company is the declarant and remains responsible as the importer. Nothing is ready until someone presses Approve declaration, and, where filing straight to TSS is switched on, Declarewise contacts TSS only when a person in your company presses one of its TSS buttons, such as File to TSS or Convert to IMMI.
- If something is misread
- Declarewise can misread a document. It is built to leave a value blank and ask you, rather than guess.
Questions
Anything else, email declan@sperrinconsulting.com.
- What is TSS, and do I need to know it?
- TSS is the Trader Support Service, the government's online system where businesses that bring goods into Northern Ireland from Great Britain file their customs declarations. You don't need to know it. Declarewise works out what each box needs, and the Key into TSS page lists the values in the order TSS asks for them.
- What is a commodity code?
- The number from the tariff that describes a product, usually 8 to 10 digits. It decides the duty rate and which checks apply. Declarewise reads the code from your invoice when there is one, and offers candidates from the tariff when there isn't. You always make the choice.
- Do you file the declaration for me?
- No. Your company makes the declaration. Declarewise prepares the values and lays them out in TSS order on Key into TSS, for you to key in. Filing straight to TSS is switched on only for companies we have agreed it with: a person in your company presses File to TSS, using your company's own TSS API keys. Either way you remain responsible as the importer.
- Does it work for the IMMI (the short form for goods staying in the UK), or only full declarations?
- It reads the invoice and builds the lines either way. If TSS offers to convert a declaration to an IMMI, Key into TSS shows the shorter set of fields to type.
- What if it can't read something?
- It leaves that value blank and asks you for it. You type it in from the paperwork, and the declaration stays open until someone presses Approve declaration.
- What if the country of origin is missing?
- The line is flagged and the question goes on your list. Check with your supplier, enter the answer, and it's catalogued for that product.
- What do I need to start?
- Your company name, a work email and one supplier invoice to try it on. Confirm the address, choose a password and upload the invoice. No card for the first 21 days or 10 reads, whichever comes first.
- How do I cancel?
- Under Manage billing in the app, or email us. You pay month by month, so it ends at the end of the month you have paid for.
Start before the next 10th
Declarations are due by the 10th of the month after the goods move. Onboard your company now and upload this month's invoices as they come in, ready to go for the next deadline.