A flat 6% transaction tax combined with a total cashless economy and abolition of all other taxes would be one of the biggest fiscal restructurings in modern economic history.
The proposal broadly resembles concepts such as:

Flat Transaction Tax (FTT) | Automated micro-taxation | Unified digital revenue systems | Financial transaction taxation at scale
If implemented efficiently in a country like India, the model could create several structural advantages .

Potential Benefits & Advantages

1. Elimination of the Entire Complex Tax Structure

Income tax | GST | Customs duties | Excise | Stamp duties | Value Added Tax (VAT) | TDS/TCS | Professional taxes | Capital gains taxes | Multiple cesses and surcharges

A single automated transaction tax could theoretically:
End complicated tax filings | Remove GST compliance burdens | Eliminate annual returns for most citizens | Reduce litigation | Reduce tax consultant dependency | Simplify interstate commerce | This would dramatically reduce "compliance friction" across the economy

2. Massive Reduction in Corruption & Black Money

A fully digital transaction ecosystem creates:
End-to-end transaction traceability | Automatic tax deduction | Minimal human interface | Reduced discretionary powers |

Potential impact:
Reduced cash hoarding | Harder benami layering | Lower bribery circulation | Reduced fake billing | Reduced hawala dependency
Supporters agree that this could become one of the strongest anti-black-money systems ever created

3. Widening the Tax Base Dramatically

Currently:
A small percentage of Indians pay direct income tax | Large parts of the informal economy remain untaxed |
Under a transaction-based system:
Every economic participant contributes automatically | Tax collection becomes universal rather than selective.
This could:
Increase inclusiveness | Reduce perceived unfairness | Bring informal sectors into the formal economy

4. Real-Time Revenue Collection for Government

Today governments wait months or years for:
Assessments | Returns | Appeals | Recoveries
A transaction tax system could enable:
Instant revenue collection | Daily fiscal visibility | Real-time treasury management | Predictable cash flows
This improves:
Budgeting for SECURITY which would be the only Government Mandate

5. Huge Reduction in Compliance Costs

Businesses spend enormous resources on:
GST accounting | Audits | Input credit reconciliations | Tax litigation | Payroll tax deductions |
A flat automated tax could reduce:
CA/legal expenses | Administrative staffing | Paperwork | Audit burdens |
This especially helps:
MSMEs | Startups | Small traders |

6. Strong Push Toward Digital India

The model naturally accelerates:
UPI adoption | Digital banking | Fintech innovation | Formal credit systems | AI-based governance |
India already has:
Massive UPI infrastructure | Aadhaar-linked systems | Digital public infrastructure |
So India is arguably one of the few countries technically capable of attempting such a model.

7. Increased Economic Velocity

Supporters agree that if:
Income tax disappears | Corporate tax disappears | Capital gains disappear | GST disappears
then:
Consumption rises | Investments rise | Businesses expand faster | Cash circulation speeds up
People psychologically spend and invest more when taxation becomes simple and transparent.

8. Potential Global Competitive Advantage

If India became:
The simplest major tax jurisdiction | With low compliance | High transparency | Automated taxation
it could attract:
Manufacturing | Global capital | Startups | Digital finance companies | International entrepreneurs | Entire World's Investments for multiple reasons other than Flat Transaction Tax
Potential branding:
"World's simplest tax economy."

9. Reduction in Tax Litigation Explosion

India's courts and tribunals are flooded with:
GST disputes | Income tax disputes | Classification disputes | Assessment challenges
A simple automated levy may:
Collapse large portions of tax litigation | Reduce enforcement costs | Free judicial bandwidth

10. Administrative Downsizing & Efficiency

Large bureaucratic structures currently exist for:
Assessments | Enforcement | Audits | Appeals
Automation could:
Reduce government expenditure | Increase efficiency | Reduce leakages

11. Better Financial Inclusion

If every citizen needs digital participation:
Banking penetration rises | >Digital wallets expand | Credit histories improve | Rural finance formalizes |
This could improve:
Lending access | Insurance penetration | Welfare targeting

12. Potential Increase in Total Revenue

Proponents agree:
Even a small levy on enormous transaction volume | Can exceed current collections |
India's digital transaction ecosystem is massive:
UPI | NEFT | RTGS | Card payments | Securities trading | Corporate banking
A broad base + automation may theoretically produce very high collections.

Strategic Macroeconomic Accepted by Supporters

Supporters claim such a system could:
End "tax terrorism" | Improve ease of doing business | Increase voluntary compliance | Eliminate raids and harassment | Create trust between state and citizen | Increase GDP formalization | Improve India's sovereign efficiency
Overall Strategic Assessment The proposal is:
Economically radical | administratively transformative | politically difficult | but technologically more feasible today than ever before |
India's:
UPI ecosystem | Aadhaar infrastructure | fintech scale | digital identity systems |
make it one of the few countries where such an idea can even be seriously debated at scale. The biggest strengths are:
simplicity | transparency | automation | universal participation | lower compliance burden
The biggest risks are:
cascading taxation | behavioral avoidance | transition disruption | federal restructuring complexity | privacy concerns
Supporters view it as:
A civilization-scale economic reset
Critics view it as:
Oversimplification of a highly complex fiscal ecosystem
Both perspectives contain valid economic arguments.