Form 12B is the declaration form which is filled out by salaried individuals in India who change their job during the course of a financial year. This form carries information regarding the previous salary received by the individual, along with any TDS deducted on it, to help the new employer make accurate tax deductions for the remaining period of the financial year.
This form enables seamless tax calculation without overlapping with prior income from the previous employer.
The main purpose of Form 12B is to consolidate the employee's earnings from previous employment with the current one. This allows the new employer to:
Without Form 12B, the new employer may deduct TDS only on current earnings, ignoring previous income and deductions, which could lead to tax mismatches.
Although Form 12B is not specifically compulsory, its use is highly recommended. Its submission ensures proper deduction of TDS and avoids any possible additional liability or refund on filing income tax returns. Employees who do not submit Form 12B must later report income from multiple employers themselves while filing their ITR.
It is usually submitted at the time of joining or shortly thereafter, ideally before the first payroll is processed by the new employer.
The information provided must match what the previous employer has submitted to the Income Tax Department.
Form 12B is typically a manual declaration that the employee submits to the HR or payroll department of the new employer. It is not submitted to the Income Tax Department directly. Once received, the payroll team adds previous income details to the employee's current salary structure and adjusts TDS deductions accordingly for the remainder of the year.
Form 12B assists payroll staff in calculating tax deductions precisely even when employees have worked in more than one job during the same financial year. Using previous salary and TDS information, payroll teams can:
Accurate Form 12B submission also reduces the chances of tax notices or mismatches during income tax filing, in line with statutory compliance requirements.
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It is used by employees changing employers in a financial year to furnish the new employer with information regarding their salary earnings and TDS deductions from the previous employer.
The submission of this form is not compulsory, but doing so helps facilitate accurate deductions of TDS and avoids tax mismatches at year-end.
Those moving to a new organisation in a financial year must submit Form 12B to ensure accurate TDS deductions.
Form 12B is usually submitted during onboarding or before the first payroll cycle with the new employer.
No, Form 12B is submitted only to the new employer's HR or payroll department and not directly to the Income Tax Department.
If Form 12B is not submitted, the employee may face incorrect TDS deductions and may need to manually reconcile taxes while filing their Income Tax Return.