GST on imported peptides depends on the consignment value and on who sells the goods. For low-value goods (AUD 1,000 or less) sold by a non-resident business, the seller must collect 10% GST at checkout. Above AUD 1,000, duty, GST and an import processing charge are payable at the border. Tax is the smaller question, though. Peptides are often regulated as therapeutic goods, and that decides whether a shipment can enter Australia at all.
TL;DR
- Low-value imports (AUD 1,000 or less): GST is collected by the overseas seller if it is registered. Some small sellers are not required to register and will not charge it.
- Consignments over AUD 1,000: duty, GST and an import processing charge are payable at the border before release.
- GST is separate from legality. Paying GST does not make an unapproved therapeutic good lawful to import.
- "Research use only" labels do not change regulatory status under Australian law, according to the TGA.
- Check the TGA position and keep documentation before ordering or importing anything.
Table of Contents
- How GST works on imported goods
- Why GST is the smaller issue for peptides
- What happens if a shipment is stopped
- Documentation and classification
- Our perspective
- Research-grade peptides with batch documentation
- Checklist before you import
- FAQ
- Sources
How GST works on imported goods
Australia treats imports in two bands: low-value goods and higher-value consignments.
Low-value goods (AUD 1,000 or less)
The ATO states that GST applies to low-value imported goods sold into Australia by a non-resident business. That business collects GST from the customer and remits it to the ATO. In the ATO's example, GST is charged on the total price for delivered goods, including shipping and insurance.
Practical result:
- Checkout shows GST as a line item, or the price is stated GST-inclusive.
- Shipping and insurance sit inside the taxable amount.
- Nothing further is normally collected at the border on these goods.
The ABF notes that for most goods valued at AUD 1,000 or less there are no duties, taxes or charges to pay at the border. Alcohol and tobacco are exceptions.
When an overseas seller does not charge GST
Not every foreign supplier collects GST. The ATO explains that some overseas suppliers are not required to register if they stay under the A$75,000 turnover threshold and so will not charge GST. A missing GST line on an invoice is therefore not proof of anything. It is also not a reason to assume the goods are tax-free in every case.
Double charging
If GST is charged at the point of sale and again at the border, the consumer must ask the supplier for a refund of the point-of-sale GST. The ATO states the ABF cannot refund border-collected GST. Keep the invoice and the clearance paperwork.
Consignments over AUD 1,000
For goods over AUD 1,000 the ABF says relevant duties, taxes and other charges, including an import processing charge, are payable. An Import Declaration (N10) is required when the combined value exceeds AUD 1,000 and the goods are cleared into home consumption. Payment is due before release. The ABF encourages first-time or infrequent importers to use a licensed customs broker.
For GST on these importations, the taxable value is the sum of the customs value, customs duty, transport to Australia, insurance and any wine tax, per the ATO's guidance on imported goods.
Worked example
Illustrative figures only, not a quote.
| Scenario | Customs value | Who handles GST | What the importer sees |
|---|---|---|---|
| Single parcel from a registered overseas seller | A$400 | Seller collects 10% at checkout | GST line on invoice |
| Parcel from an unregistered small seller | A$400 | No GST charged by seller | No GST line; no border charge on most goods at this value |
| Consignment over threshold | A$1,500 | Collected at border | Duty if applicable, GST, import processing charge |
The value basis matters. Because shipping and insurance count toward the GST base, a parcel near the threshold needs checking against the ATO and ABF rules on how value is measured.
Why GST is the smaller issue for peptides
Tax rules describe how goods are charged. They do not decide whether goods are allowed in. For peptides, the TGA decides that.
When a peptide is a therapeutic good
The TGA states a peptide product is regulated as a therapeutic good if, for example, it is promoted, supplied or generally used for a therapeutic purpose, such as modifying a physiological process in the body. The same page says many peptide products promoted online for weight loss, muscle growth, anti-ageing or performance enhancement are unapproved therapeutic goods that have not been assessed for safety, quality or effectiveness.
Generally, therapeutic goods must be entered in the ARTG before they can legally be imported, unless exempt. Some unapproved goods can come in under specified circumstances, including the Personal Importation Scheme.
Research use only labels
The TGA states that disclaimers saying a product is for research use only do not change its regulatory status, permit importation or remove supply obligations. A label is not a legal pathway. Anyone importing should read the TGA position first and, where uncertain, take advice from a regulatory professional.
Personal Importation Scheme limits
The scheme is a narrow exception. Conditions the TGA publishes:
- Individuals must meet all scheme conditions, including valid medical authorization or a prescription when required.
- One importation cannot exceed a 3-month supply at the manufacturer's maximum recommended dose.
- Repeated importations cannot exceed 15 months' supply in total over a 12-month period.
- Supplying medicines obtained online to anyone outside your own family is illegal and may result in penalties, per the same TGA page.
For how prescriptions fit in, see our guide to peptide prescription requirements in Australia.
Controlled substances
Narcotic, psychotropic or precursor substances need a licence and/or permit from the Office of Drug Control under the Customs (Prohibited Imports) Regulations 1956, as the TGA's import page sets out. Paying GST has no bearing on this requirement.
What happens if a shipment is stopped
The TGA says unapproved peptide products that are not clearly labelled may not be considered for release, and importers must meet the Personal Importation Scheme conditions. It also states it takes enforcement action where unlawful importing is identified. Both points are on its importer responsibilities page.
An example from the public record: in April 2024 a Victorian was penalized over a suspected unapproved peptide product that was not registered on the ARTG, a case that shows the TGA acts on individual importers as well as suppliers.
In practice a held shipment means:
- Notice from the regulator or ABF requesting information.
- Request for evidence of authorization, prescription or exemption.
- Possible refusal of release, with tax paid not being a defense.
GST paid at checkout is not a refund claim against a seized parcel. Raise any refund with the seller, not the ABF.
Documentation and classification
For laboratory importers, paperwork reduces delay. Items usually requested:
- Commercial invoice with accurate description and value.
- Certificate of Analysis for the batch.
- Tariff classification. See our note on HS codes for peptides in Australia.
- Evidence of the end use and the importing entity.
More detail is in our guides on documents Australian labs attach to imports and avoiding customs holds. For the wider legal picture, see TGA peptide rules in Australia and research peptide compliance.
Our perspective
We see GST questions from buyers who assume tax is the only cost of importing. It is not. Three points guide how we handle this topic:
- Tax and legality are separate checks. An invoice with GST on it says nothing about TGA status.
- Documentation is the control we can offer. Each batch is HPLC and mass spec tested, traceable, and a Certificate of Analysis is available on request.
- Our products are research-grade. They are supplied for laboratory research by qualified researchers and institutions, not for personal use, therapeutic claims or resupply.
We do not tell readers that a label or a document makes an import lawful. The TGA position governs. Anyone unsure should contact the TGA or a regulatory adviser before ordering.
— Tintastic
Research-grade peptides with batch documentation
For qualified researchers and institutions, Peptastic Labs supplies a catalog of independently tested compounds, each verified at ≥99% purity by HPLC.
- Categories: Metabolic, Cognitive & Neuro, Tissue & Repair, Longevity, Cosmetic Science, Blends, Hormone & Reproductive, Ancillaries & Reagents.
- Documentation: traceable batch records, Certificate of Analysis on request.
- Volume: bulk and wholesale options available.
Browse the full research peptide catalogue and confirm your own regulatory obligations before placing an order.
Checklist before you import
- Identify the compound and how it is described or promoted. Therapeutic claims can bring it under TGA regulation.
- Check the TGA peptide products page for current status.
- Establish whether any exemption or scheme applies, and keep the evidence.
- Confirm whether the seller is registered for GST and how value is stated.
- Work out total value including shipping and insurance against the AUD 1,000 threshold.
- Keep invoices, the Certificate of Analysis and clearance records.
- Seek advice if the compound could be a controlled substance.
Cost context beyond tax is covered in peptide costs in Australia.
FAQ
Do you pay GST on imported goods under $1,000?
Usually yes, if the overseas seller is registered. The seller collects GST at checkout on the delivered price. Small sellers under the A$75,000 turnover threshold may not charge it, and the ABF generally charges nothing at the border on most goods of this value.
How much is import tax to Australia?
GST is 10% of the taxable value. Above AUD 1,000 the base includes customs value, duty, transport and insurance, and an import processing charge applies. Duty depends on the tariff classification of the goods.
Is it legal to bring peptides into Australia?
Only if the goods meet TGA requirements: ARTG entry, an exemption, or a pathway such as the Personal Importation Scheme with its conditions. Many peptides promoted for therapeutic purposes are unapproved goods. A research use only label does not change this.
Does paying GST make an import legal?
No. GST is a tax on the transaction. Legality is decided by therapeutic goods and customs law, and the TGA enforces it regardless of tax paid.
Sources
- GST on low value imported goods, ATO
- GST and consumers: imported services, digital products and goods, ATO
- GST and imported goods, ATO
- Import declarations, ABF
- Import declarations (how to import), ABF
- Importing therapeutic goods, TGA
- Peptide products, TGA
- Understanding your responsibilities when importing unapproved peptide products, TGA
- Importing a medicine or medical device, TGA