1. Rate Changes: Governments might decide to change the GST rates for certain goods and services. This could involve increasing or decreasing the tax rates to align with economic priorities or to adjust the tax burden on specific products or sectors.

2. Threshold Changes: The threshold for mandatory GST registration might be changed. This could impact the businesses that are required to register and collect GST.

3. Exemption and Inclusion: Items that were previously exempted from GST might be included, or vice versa. This can affect the tax liability of both businesses and consumers.

4. Input Tax Credit Rules: Changes to rules governing the eligibility and utilization of input tax credits can affect how businesses can offset the GST they pay on inputs against the GST they collect on their outputs.

5. E-filing and Procedures: Amendments might be made to the procedures for filing GST returns, making payments, and claiming refunds. These changes can impact how businesses interact with the GST system.

6. Anti-Profiteering Measures: Some countries implement anti-profiteering provisions to ensure that businesses pass on the benefits of reduced tax rates to consumers. Amendments might be made to strengthen or modify these measures.

7. Reverse Charge Mechanism: Changes might be made to the rules around the reverse charge mechanism, where the liability to pay GST is shifted from the supplier to the recipient.

8. Place of Supply Rules: Amendments in the place of supply rules can impact the determination of whether a supply is considered intra-state or inter-state, affecting the applicable GST rate and jurisdiction.

9. Transitional Provisions: When GST laws are introduced or changed, transitional provisions might be included to manage the shift from the old tax regime to the new one.

10. Sector-Specific Amendments: Certain sectors might have unique GST rules or exemptions. Amendments can be made to these sector-specific provisions.

Remember, the specifics of GST amendments can vary greatly between countries, as each country designs its own GST framework. It’s essential to refer to official government sources or legal experts in your jurisdiction to get accurate and up-to-date information about GST amendments.