File Form 12B

Declare previous-employer salary to your new employer after a mid-year job change.

Accountant working through tax computations on a calculator and laptop
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What's included

All three plans deliver the same professional quality, accuracy and final output. The difference is the service experience — processing speed, priority handling, communication and support.

  • Professional handling
  • Secure document collection
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  • Service-specific Bluman Advantage
  • Status updates
  • Post-completion support

Bluman Advantage

Previous salary, perquisite and TDS extraction from Form 16/payslips, Rule 26A-format Form 12B preparation, cross-check against 26AS/AIS and a shortfall estimate so your new employer deducts the right TDS for the rest of the year.

Why this matters

Why it is required

A new employer only knows what it pays you. Without Form 12B it applies exemptions and slab benefits afresh from your joining date, so TDS for the year is under-deducted.

Avoids a tax shock at filing time

Under-deducted TDS surfaces only when you file your return, as a lump-sum payable along with interest under sections 234B and 234C where applicable.

Gives you one consolidated Form 16

Once Form 12B is accepted, the new employer computes tax on combined salary for the full year and issues a Form 16 reflecting the whole year's position.

Keeps deductions from being claimed twice

Standard deduction, Chapter VI-A limits and exemption thresholds apply once per year, not once per employer. Form 12B lets the new employer apply them correctly.

Service overview

What this service is

Form 12B is a declaration under Rule 26A of the Income-tax Rules, 1962 that a salaried employee gives to a new employer after changing jobs during the same financial year. It reports salary, allowances, perquisites, provident fund accretion and TDS already deducted by the previous employer. Bluman collects your earlier Form 16, payslips and tax credit statements, prepares the declaration in the prescribed format and hands it to you ready for submission to your new employer.

Who needs it

Salaried individuals, professionals, business owners, investors and NRIs who have Indian taxable income or a filing obligation.

What Bluman will do

  • Data and document review against AIS/26AS
  • Computation and regime/scheme comparison
  • Filing, verification and refund tracking

Key deliverables

  • Final computation of income
  • Filed return with acknowledgement
  • Summary of tax position and next actions

Average turnaround time: 1 day once complete documents and information are received. Actual timelines can vary with document readiness, government portals and third-party dependencies.

  • · Government fees, portal charges and applicable taxes are billed at actuals.
  • · Timelines start once complete documents and information are received.
  • · Outcomes that depend on a government authority cannot be guaranteed, but every step is tracked and communicated.

Documents required

  • PAN card
  • Aadhaar / identity proof
  • Contact & communication details
  • Form 16 / income statements
  • Bank statements for the year
  • Investment & deduction proofs

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  • · Priority — 30 days of post-completion access
  • · Concierge — 60 days of post-completion access
  • · Reopening is subject to the scope of the original service.

Frequently asked questions

Who needs to submit Form 12B?

A salaried employee who joins a new employer part-way through the same financial year (1 April to 31 March) and had salary income from the previous employer in that year.

Is Form 12B submitted to the Income Tax Department?

No. It is submitted by the employee to the new employer. The employer uses it to compute TDS on total salary for the year; it is not filed with the department.

What happens if I do not submit it?

The new employer deducts TDS only on the salary it pays. The shortfall on combined salary becomes payable by you at the time of filing your return, potentially with interest.

What documents are needed?

Your previous employer's Form 16 or salary certificate, monthly payslips for the period worked, details of perquisites and provident fund accretion, and your Form 26AS / AIS for TDS credit verification.

When should I give it to the new employer?

At the time of joining, or as early as possible thereafter, so that the correct TDS can be spread over the remaining months of the year instead of being deducted in a lump sum.

Is Form 12B the same as Form 12BB?

No. Form 12BB is the declaration of deductions and investments you claim from your employer. Form 12B specifically reports income and TDS from a previous employer after a job change.

Still have a question about this service? Book a ₹49 query consultation or contact the Bluman team.

Related services

Under the Income-tax Act, 2025 and the Income-tax Rules, 2026, the declaration earlier made in Forms 12B and 12BAA is consolidated into Form No. 122. Bluman prepares the form applicable to your relevant year.

Regulated services including certifications, attestations and statutory filings are performed or reviewed by appropriately qualified professionals as required by law. Government fees, portal charges and taxes are billed at actuals.