SCN requirement: absence of a show-cause notice prevents imposition of service tax and interest under revision.
Issuance of a show-cause notice under the demand provision is a prerequisite to fix service tax and interest; where only a penalty notice was issued under the penalty regime, the revisional authority cannot validly pass an order demanding service tax with interest because the penalty notice cannot substitute for a demand-stage show-cause notice.

Right to be heard required before finalising provisional assessment; taxpayer must be told grounds and allowed to respond.
An assessing authority must inform the taxpayer of the specific grounds for proposed enhanced liability and afford a meaningful opportunity to meet those grounds before finalising a provisional assessment, as a baseline requirement of natural justice in assessment proceedings.

Provisional assessment appeals permitted where statute and rules authorize provisional determinations, allowing aggrieved parties to prefer appeals.
Provisional assessments are authorized by the Act and Rules, and an aggrieved party retains the right to appeal against such provisional assessments; the provisional nature does not by itself preclude preferring appeals under the applicable appellate procedure.

Non-filing of memorandum for provisional assessment is a procedural omission and does not negate provisional assessment.
Non filing of the memorandum in Form ST 3A does not by itself negate the existence of a provisional assessment; the form serves to supply date wise details to enable the proper officer to make an accurate final assessment, and omission of that statement does not preclude that assessments were provisional, especially where the taxpayer later requests and the proper officer completes a final assessment.

Best judgment assessment must be reasoned, not arbitrary; it requires material support and more than mere guesswork.
A best-judgement assessment allows limited estimation but the assessing officer must make an honest, fair and reasoned estimate and cannot act wholly arbitrarily; technical rules of evidence are relaxed but the assessment must be based on more than mere suspicion or pure guesswork and should be supported by adequate material rather than unsupported conjecture.

Best judgment assessment: courts may not substitute their own estimate if the assessing authority's basis has reasonable nexus.
Assessment based on accounts is proper where books are genuine and substantially correct, with only minor adjustments; a best judgment assessment is used when accounts are unreliable and the authority estimates liability using available accounts, other information and surrounding circumstances. Courts reviewing a best judgment assessment must first confirm that rejection of accounts was justified and then assess whether the estimating basis has a reasonable nexus to the estimated turnover; if so, the authority's bona fide estimate should not be displaced.

Assessment in service tax: scope includes self assessment, reassessment, provisional and best judgement modes and interest determination.
Assessment for service tax includes self-assessment, reassessment, provisional assessment, best judgement assessment and any order where tax assessed is nil; it also includes determination of interest on assessed or reassessed tax. "Assessee" means a person liable to pay the tax and includes the person's agent.

Untrue self-declaration in tax return corroborates suppression and can trigger penalty under self-assessment procedures.
An untrue declaration in a service tax return asserting that tax has been paid corroborates suppression and attracts penalty; absence of a bona fide statement on the return or with the return renders the declaration faulty and imputes liability under the self-assessment procedure.

Electronic preservation of records permitted subject to every page being authenticated by digital signature and prescribed safeguards.
Preservation of records in electronic form is permitted provided each page of the record is authenticated by a digital signature, and the Board may prescribe further conditions, safeguards and procedures for maintaining digitally signed records.

Partial reverse charge: provider exempt under SSI does not pay; service receiver still liable for receiver's portion of tax.
Where a service falls under partial reverse charge and the provider is covered by the SSI exemption and not liable to pay service tax, the provider's obligation to pay its share is eliminated while the service receiver remains independently liable to pay the receiver's portion under the reverse charge mechanism.

Reverse charge liability now places full service tax responsibility on the service recipient for manpower and security services.
W.e.f. notification no. 07/2015-ST the services by way of supply of manpower for any purpose and security services have been placed under a full reverse charge mechanism, making the service recipient exclusively liable to discharge the entire service tax; the earlier partial reverse charge split between recipient and service provider has been removed.

Partial reverse charge: service tax liability split between provider and recipient; third-party payers allowed under notification
A scheme of partial reverse charge allocates service tax between provider and recipient by notifying services and the share payable by the recipient, the provider paying the remainder. As at 01/04/2015 the notification covers renting of passenger motor vehicles to persons not in the same business and the service portion of works contracts. The framework also allows liability to be placed on persons other than provider or recipient, for example a representative of an aggregator, where so notified.

Aggregator liability: platform owners bear service tax responsibility, with representatives appointed if no taxable territory presence.
An "aggregator" is the owner manager of a web based application enabling customers to connect with service providers under the aggregator's brand; the aggregator is the person liable for paying service tax for services involving the aggregator. If the aggregator lacks physical presence in the taxable territory, a person representing the aggregator in that territory is liable; if there is neither presence nor representative, the aggregator must appoint a person in the territory who will be liable to pay service tax.

Aggregate value rule: combined turnover across services and premises determines small service provider exemption; co-owners assessed individually.
Exemption is applied to the aggregate value of all taxable services provided from all premises by a provider, and eligibility is determined by aggregating previous year turnover across all premises; where premises are co-owned, each co-owner may claim the exemption separately if, on individual assessment, their aggregate taxable services fall within the threshold.

Reverse charge excludes recipients from small service provider exemption when they are liable to pay service tax.
The Small service provider exemption does not extend to persons liable to pay service tax as service recipients under the Reverse Charge Mechanism; values of taxable services for which tax is payable by such person under sub-section (2) of section 68 read with the Service Tax Rules are excluded from the notification's exemption.

Option to decline small-provider exemption allows service providers to pay service tax and claim CENVAT credit from that date.
Service providers may elect during a financial year to forego the small-provider value-based exemption and pay service tax, but the election is irrevocable for that financial year. Upon electing to pay service tax, the provider may avail CENVAT credit only for inputs or input services received on or after the date service tax payments commence and used for taxable services for which service tax is payable.

Brand name usage and service tax exemption: services under own brand remain eligible; exclusion covers use of another's brand.
Exemption for small service providers applies when services are provided under the provider's own brand name or trade name; the notification excludes only taxable services provided under a brand or trade name of another person, whether registered or not.

Deemed registration applies when the local superintendent delays issuance, but not to centralized registration by the Commissioner.
Failure of the Superintendent of Central Excise to issue Form ST-2 within seven days triggers deemed registration; that deeming provision applies only to registrations by the Superintendent and not to centralized registrations granted by the Commissioner, where no statutory time limit exists. Registration must nevertheless be granted within a reasonable time, and administrative circulars treating seven days as reasonable impose directory guidance and accountability but do not create deemed registration for the Commissioner.

Registration refusal prohibited: complete service tax applications must be accepted and authorities cannot register suo moto.
A complete and properly filled application in Form ST-1 and/or ST-2 must be accepted; there is no statutory power under the Finance Act, 1994 or the Service Tax Rules, 1994 for the Superintendent or the Commissioner to refuse registration, nor to grant registration suo moto. Registration is confined to the category specified in the application, and non-alignment with the correct category may attract recovery or penal proceedings.

Surrender of service tax registration required on cessation of taxable services; cancellation follows after dues are cleared and documents submitted.
Surrender of the registration certificate is mandatory upon cessation of taxable services and must be submitted to the Superintendent, who ensures all dues are paid before cancelling registration. No prescribed format exists; a simple application is acceptable. A trade notice lists common reasons for surrender and requires an application and undertaking, copies of recent ST-3 returns (up to six), profit & loss accounts and balance sheets (up to three years) or income tax returns or bank statements if unavailable, and disclosure of pending show-cause notices, confirmed demands, court cases and audits; waiver of penalty may be applied where returns were not filed but turnover is below the exemption limit.